CONTENTS... 2006 DP-6X Chassis Projection Television Information Materials Prepared by… Alvie Rodgers C.E.T. (Chamblee, GA.) Updated August 2007 (ver c) 2005 MODEL RELEASE DIGITAL HD READY PTV Model Chassis Remote P/N 51F59 DP-65 CLU-4361S 57F59 DP-65 65F59 DP-65 51F59A/J DP-65G 57F59A/j DP-65G 65F59A/j DP-65G HL02291 Service Web Site http://www.hitachiserviceusa.com HITACHI PROJECTION TELEVISION
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CONTENTS... 2006 DP-6X Chassis Projection Television Information
ents are shown to the nearest 1/16th inch. This illustration is not necessarily draw
n to scale and is intended for estimating space required for custom
installations. Final measurem
ents should be taken from the actual product
before attempting installation. All dim
ensions are approximate m
easurements and subject to change w
ithout notice. Allow adequate space behind the unit for proper ventilation and cooling. H
itachi is not responsible for any typographical errors.
Alvie Rodgers
Text Box
PAGE 01-06
DP-6X CHASSIS TRAINING PACKAGE
POWER SUPPLY INFORMATION
SECTION 02
THIS PAGE INTENTIONALLY LEFT BLANK
I904
DP-6X CHASSIS POWER SUPPLY SBY 5.0V REGULATION CIRCUIT DIAGRAM
PAGE 02-01
Run
1
2
Start Up
4
R958
FB
F/B
Cold Ground frompin 8 of T901
F9021 Amp
R957
Hot Ground from pin 4 ofBridge Rectifier D901
AC
5
I901
Start Up
3
8
D
C908+
-
3Gnd
L930SBY 5.0V
T901
5.7V
C940
RegulatorPhotocoupler
D949
C911
R908
OCP
4
D962MTZJ4.3B
6
8
D907
Vcc
5
3
Secondary
7
D
R909
1
C909
14
PAF901
8 Amp
2
3D901 2
1
C905
R906 D206
T901
1
2
2
Primary
C912
5.28V
4.30V
1.08V
1.08V170V
0V
170V
16.3V
0V
PAGE 02-02
9.62V
DP-6X CHASSIS POWER SUPPLY SW +115V REGULATIONHigh Voltage Power Supply
R915
RunI906
AC
RegulatorPhotocoupler
1
2
Start Up
Osc B+17.91V 4
7.5P/P
R914R913
D910C914
D911
6
Supplied from Relay S903
Floating Ground frompin 8 of TP01
3
SW +10.5V
R964R920
E9460.5K
I941
3
1 2
L948 0.81ASW +115V11
T9020.39R951
R959
R956
12
C961
C966
Q941
C967R955
R952D946
D950
D945E9473K
DeflectionB+ 115V
ProtectOVP
D948D951
D952
8T902
9
C925
FB
VIn
1 2
150V
F9035A
12
56
T902R916
D S
Cold Ground frompin 16 of TP01
C906
AC Supplied fromRelay S903
Raw B+ from D902 Pin 1
4
3
B+ 115V
8.58V
8.58V
11.38V
7.13V
0.74V
176V
1 of 3
2 of 3
3 of 3
OCP/FB
Gnd
0.05
SW +35V
R986
0.01A
R960C968
R963
D914R921
7OCP/BDD913
D912
0.55V
AC Hot Ground frompin 8 of TP01
0.0V
I902Driver/Output
IC
PAGE 02-03
DP-6X PROTECT-OVP SHUTDOWN BLO CK DIAGRAM
Power_1D944PDS2
6
Q980 / Q981
D951D946D959
AC Too High Det.
From I905 / Q901
Power-Def 1/1
DX07
RE35 CurrentSensor + 220V
Over Current Det. 220V Overcurrent Detect ion
QE08
7 3
PCT
Green CRTRed CRT
Deflection 1/1
7 PDT2
< VM Port > < CRT Prot >
< Protect-OVP >
To Q944Turns on Relay S903
A B
D952Q941
115V Too High Det.
115V OverCurrent Det.
D948
Power_1
+115V
ExcessiveHigh Voltage Det.
DH15From DH13, CH17off Pin 7 of Flyback
Vert. 26V Overcurrent Det.
D608R632 From Q604and Current Sensor
R609
DC27
- 5V Loss Detection+ 5V
RC47
RC46- 5V
< Protect-OVP >
Signal 6/7 (Sweep Detection)
Signal 5/7 (RGB Processor)
RY73RE34ERG1
+115V
Turns off Relay S903
A
B
C
1
2
4
7
2
1
Source
Load0.39ohm
If the 220V line experiencesa high current demand, ahigh is impressed on the
anode of DX07
If the -5V line experiencesa short or disappears, ahigh is impressed on the
anode of DC27
If the Vert 26V line experiences a high currentdemand, a high is impressed on the anode of D608If the Heater pin line goes too high, a high is
impressed on the cathode of DH15, turning it on.
If the AC line goes too high, a high is impressed onthe anode of D959
If the 115V line experiences a high current demand, ahigh is impressed on the anode of D946 or
If the 115V line goes too high, a high is impressed onthe cathode of D948, turning it on. Any high impressed on the base of Q980 will cause
the Relay to turn off. Q981 keep Q980 turned on aslong as the Power_1 high remains.
PAGE 02-04
CRT PROT
DP-6X CRT and -5V LOSS PROTECT-OVP (A) SHUTDOWN DIAGRAM
Signal 6/7
RE31
RE352.2 Ohm
1
PDC1
Def+220V
RE29
QE08
To CRT 220VTo VM Circuit
7
ERG1
3
PCT
GREENCRT PWB
RED CRT PWB
RE34 1
VM PORTCE10
A B DX07
RGB ProcessorSignal 6/7
CRT +220V ExcessiveCurrent Detection
VM PORT
1
< Prot-OVP >RY73
Normal
Active
8
PDT2
ASEE DEFLECTION SIDE (B)
PROTECT-OVPSHUTDOWN DIAGRAM
2
< Prot-OVP >
RE30
-5V Loss Detection
DC27
-5V Loss Det.
+ 5V
- 5V
RC47
RC46
< Prot-OVP >
1
PAGE 02-05
DP-6X DEFLECTION SIDE (B) PROTECT-OVP SHUTDOWN D IAGRAM
Flyback
5OP
29.01V
IH01OVP
TH01ABL VoltageToo High Det.
RH32
Hi VoltH. Drive
77LH06
Excessive HiVoltage Det.
RH23
CH17
8ABL
Stops H. Drive
I601
10
Vertical Output Circuit
R630 R631
C610
DH15
R629 0.68 Ohm
Q604
Def +28V
D608
Excessive VerticalCurrent Det.
R632
RH32 allows ABL fluctuations tomanipulate the Trigger Po int of Shut
Down as screen brightness varies. ABLis inverse proportionate to brightness.
This prevents false triggering.
Any fluctuations in High Voltage willalso be reflected by the 50P output P/P.By monitoring the 50P (50 Pulse) risesin High Voltage will be sensed. If HighVoltage climbs too high, DH15 will fire
and trigger a shut down event.
If the Vertical Output IC has a problem,R629 will sense the current rise. The
voltage drop will be reflected at the baseof Q604 turning it on and producing a
Shut Down high.
High VoltageSensing Circuit
DH13
DH141
RH26
RH24
C604
L603
Vs
RH21
LH01
RH25
Normal
Active
8
PDT2
FROM CRT and -5V LOSSPROTECT-OVP (A)
SHUTDOWN DIAGRAM< Prot-OVP >
< Prot-OVP >B
SEE 115V TOO HIGH AND OVERCURRENT DETECTION (B~C)
PROTECT-OVP DIAGRAM
2
1
1
4
Deflection Schematic
A
PAGE 02-06
DP-6X 115V TOO HIGH AND OVER CURRENT DETECTION (B~C) D IAGRAM
17
TP01
Deflection B+ (115V)Excessive Voltage Det.
0.39 Ohm
Deflection B+ (115V)Excessive Current Det.
RP47
RP54
RP55
RP53
16
CP45
CP51
QP41
CP59
RP48
EP46500
DP55DP59
DP58
D926
CP63 DP56
DP463K
EP45 Deflection B+ 115V
RP49Def +115V
SEE PROTECT-OVP (C)SHUTDOWN CIRCUIT
2
Power-Def Schematic
6
BSEE DEFLECTION SIDE (B)SHUTDOWN DIAGRAM
C
< Prot-OVP >
4
PA
GE
02-07
S903
C980
R947AC
SBY +5V
R942
R981
R980
Q980
Q981
C981
onoff
RelayDriver
D942
Q944
R945
6
R982
PDS2
DP-6X PROTECT-OVP (C) SHUTDOWN CIRCUIT
7
D947
ForPowerSupplyD902
D9021
2
T902
R924
R925
D9159V
(8.9V ~ 9.3V)
R926
Q901
AC 175On
2
1 3
4
I905SBY 5V
D959
AC Voltage Too HighDetection
Run B+ 16V
R9231
Raw B+
HotGround
5
4
R927
C916
6
AC AC
From Sub Micro I002Pin 62, Q012, Q013
Power_1
C942
c
SEE115V TOO HIGH
AND OVERCURRENT
DETECTION (B~C)DIAGRAM
Power-Def SchematicPower On/Off
DP-6X CHASSISL.E.D. (Visual Troubleshooting) for the Deflection Power Supply
+115 Deflection B+ L.E.D. for visual troubleshooting observation.
GREEN L.E.D.
C966
0.85ASW + 115V
+115VR951
0.39 Ohm
D950
L948R959
R956
+115V OverCurrent
Q941
C967
T902
PAGE 02-08
R952
E9473 Amp
PROT_OVP
See the Deflection Power Supply ShutDown Circuit Diagram for details.
D948 +115V OverVoltage
SW +115V Active (LED)
C96112
11+115V D945
D946
C966R960
D951
D952
GND 1
Active Hi
S903
R947
SBY +5V
R942
onoff
RelayDriver
D942
ForPower Supply
Q944
R945
Power-Def 1/1
DP-6X POWER ON and OFF CIRCUIT DIAGRAM
AC
PAGE 02-09
D947
C944
I9071SW 5.6V
Regulator
L931
C931
SW+ 5.6V
S901RUSH
R940
on off
RelayDriver
D940
ForPower Supply
Q942
R943
D944
C942
Conv + 28V
3
14
2
3D902
AC1/2
AC
PA 2 1
F9021 Amp
F9018 Amp
R9072.2
ohm
AC1/2
Raw B+ forT902 / I902
I002Sub
MicroprocessorQ012Q013
6
10
Signal 1/7 Main Micon
POWER 1Power On/Off 1
POWERLED
on off
PFT1
PDS2
DM10
RH30
9
Power LEDNot Used
PFS
SW+ 9VIA04
3SW 9VRegulator
5SW+ 10.5V
Power LED
From D954 off MainSwitching Transformer
Pin 13 Signal 4/7Audio
Ft Control
61
67
S901 Turns On after theSW 5.6V becomes
active. This preventssurge current duringcapacitor charging.
AC Routewhen first applied
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DP-6X CHASSIS TRAINING PACKAGE
VIDEO INFORMATION
SECTION 03
THIS PAGE INTENTIONALLY LEFT BLANK
CY
PB
PR
PAGE 03-01
Component 3 Y
V4
S2 1412
V2
S1
10
68
V5
S5
162018
Front Control PWB
V1 4
U303 Main Tuner 22
Aux 5 S-Y V3YAux 5 S-C V3C
Aux 5 Video V3VC Pb
Y
SUB OUT
MAIN OUT
I501Video Select
279
PFT
4
V3
Y3C3
V2Y2C2
V1
Y1C1
CVBS2
DP-6X CHASSIS VIDEO SIGNAL SELECTION PATH CIRCUIT DIAGRAM
1711 S-1S-5 Det.
Aux 2 VideoAux 2 S-YAux 2 S-C
Aux 1 Video
Aux 1 S-YAux 1 S-C
C Pr
61
59
57
V3
67
65
63
24
Component 4 Y
Component 4 Pb/Cb
Component 4 Pr/Cr
Composite 3
Component 3 Pb/Cb
Component 3 Pr/Cr
11 S-3S-2 Det.
5 S-2S-1 Det.
33
32
34
For Micro. Sync detection
MON OUT
See Main Sync Signal Path
56
60
64
Signal 2/7 Tuners
Signal 3/7 AV Selector
Sheet 13 1 2
CY1
PB1
PR1
V7
26Composite 4
V8
CY2
PB2
PR2
PDTV1
Signal 2/7 Tuners
See Sub Sync Signal Path
Y5 DM InDTV-CY
DTV-C
NTSC for Monito OutC5 DM In
19
15
16
17
18
HDV-Y
HDV-PR
HDV-PB
MTV-CVBS
SDL2
SDA2
CLK
DATA
73
69
71
G/CY1
R/PR1
B/BR1
U304DigitalTuner
36 G/Y/CVBS
For Micro. Main CC detection
23
PST
11
13
C Pb
C Pr
Y
29
30
28
74
72
68
For Micro. SubCC detection
97
45
44
100
NOT AVAILABLE
61
30
60
True 1080IRainforest IC(Flex Bypass)
YTrue Y
True Pb
True Pr
Main CY/Y/CVBS
Main_Pb
Main_Pr
Sub_Pr
Sub_Pb
Sub CY/Y/CVBS
1
3
5
66
QX09
67
QX10
68
QX11
FLEX CONVERTER
Signal 5/7 RGB Processor
IX01Rainforest
RH43 180K
ABL
CX17
DP-6X Chassis A.B.L. Circuit Diagram
78
8
To Focus
IX01Rainforest
ICABL
ToAnodes
To QH01 Collectorof High Voltage
Output Transistor
Deflection PWB
Clamp
RH27 & RH28ABL Pull-Up
Resistors
As Brightness goes Up, ABL Voltagegoes Down. (Inverse Proportional)
[ Current Path ]
QX12
CX18
TH01
Protect_OVP
RX38
CX21
DX02
CX20RX37
RX36RX35
RX34RX33
DX01
DH16RD30EB4
CH18
RH27 30K
RH31
RH32180K
CH21
DH15
SW +10.5V
RH25 13K
ABL
9
10
7
1 Gnd
DH13
CH17
IH01
7DH14
RH09 CH10
RH23
LH06
StopsH. Drive
OVP
HZ22-2L
RH26
PDS2
6.8K
FBT
RH42 47K
RH41
I001Sub
MicroSDA1 28SCL1 30
B_Side_Panel
75SW +9.3V
QH05
ABL_SW
PAGE 03-02
ABL
RH21
LH01CH14RH28 39K
RH2443K
58 ABL Switch
50PB+
C
RH40
ABL switches slightly reduce theoverall operational point of ABL dueto the loss of overall brightness levels.
RH332.2K
Signal 5/7 PWB
SW +115V
RH30ABL Switch
QH03
BLACK_PANEL
RH35
2
3
59 Black Side PanelR090
PDT2
2
RC95
R091
1080I
Signal 1/7 PWB
C80810/150
R822360ohm
C807470/10
Q806
R8231K
R8212.2K
L806
C817100/16
C814100/16
Q801
R Signal
SW+ 9.3V
SW+ 9.3V
R80256 ohm
R8052.2K
D801
D809
D802
R80339 ohm
R80410 ohm
C801180P
RED Video OutDrivers to CRT
Q851
R Signal
SW+ 9.3V
R85256 ohm
R8552.2K
D851
D859
D852
R85339 ohm
R85410 ohm
C851180P
GREEN Video OutDrivers to CRT
Q8A1
B Signal
SW+ 9.3V
R8A256 ohm
R8A5470ohm
D8A1
D8A7
D802
R8A391 ohm
R8A410 ohm
C8A1180P
BLUE Video OutDrivers to CRT
Blue GammaCorrection
Q8A7
R8E5120 ohm
R8E3Q8A8
+ 9V
R8E0
Bias Supply
White RasterB = 1.47VE = 2.18V
Color BarS RasterB = 1.42VE = 2.12V
Black RasterB = 1.35VE = 2.04V
DP-6X CRT BIAS CIRCUIT Q806
PAGE 03-03
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DP-6X CHASSIS TRAINING PACKAGE
AUDIO INFORMATION
SECTION 04
THIS PAGE INTENTIONALLY LEFT BLANK
PAGE 04-01
AVX 3 Audio L
V4
88V2
87
86
V581
82
Front Control PWB
V185
U30383
ANALOG TUNER U303
Aux 5 Audio RAux 5 Audio L
L1 OutMAIN OUT
I501Audio Select
4
5
PFT2
2
L4
R4
L5
R5
L7
R7
L6
DP-6X CHASSIS AUDIO SIGNAL SELECTION PATH CIRCUIT DIAGRAM
91
92
V389
90
AVX 4 Audio L
AVX 4 Audio R
AVX 3 Audio R
96
97
SDL2
SDA2
45
44
Signal 2 Tuners Signal 3 AV Selector
L3
R3
L2
R2
CLK
DATA
Signal 2 Tuners
80
79
L8
R8
DigitalTunerU304
841
MTV-L
MTV-R R6
AVX 2 Audio L
AVX 2 Audio R
AVX 1 Audio L
AVX 1 Audio R
R1 OutSelected Audio Out
L1
R1
Hi-Fi93
94
1
20
12
IA02Audio
Control
QA07
QA06
QA05
QA04
Signal 4/7 Audio
PL
1L Out 1
R Out 1
MON OUTMonitor Audio Out L
1
100Monitor Audio Out RMONITOR
OUT CA42
CA12
CA15
CA26
CA25
C554
C553
C512
C513
C515
C514
C526
C527
C551
C552
C548
C549
C545
C546C540
C541C576
C575
C574
C573
DTV L
DTV R13
12
A Out R
A Out LI301
1
7
3
5
2
19CA12
CA15
IA03AudioOut
2
4CA28
CA27L In
R In
7
PR
1CA41
CA29
CA30
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DP-6X CHASSIS TRAINING PACKAGE
DEFLECTION INFORMATION
SECTION 05
THIS PAGE INTENTIONALLY LEFT BLANK
PAGE 05-01
QC12
PDT2
RC27
RC30CC10
DP-6X SWEEP LOSS DETECTION CIRCUIT
RC22
CC06
CC08
RC24V. Blk.
14V P/P
H. Blk.CC09
RC28RC29 RC26
RC17
RC138V P/P
RC18
Vertical BlankingFrom Pin 11 I601
Horizontal BlankingFrom Q706 Emitter
QC11
RC23
RC25
DC21
DC20
RC34
DC22
DC23
QC08
QC07
QC09QC10
CC13
DC19
RC19
DC26 RC16
Cut Off
QC06RC21
RC22
From Pin 60 I002 Sub Microprocessor (Signal 1/7)
7
4
FromDeflection 1/1
RC35
QC13
RC36
CC12
RC33
CC11DC24
RC32
RC31ProtectSwitch
H Det
V Det
Protect HV
See Video MuteGeneration
Circuit
A
Signal 6/7Sweep Detection
10 SW +10.5V
Def 6.3V
RC14
DC18
RC37 DC25
Cut Off from Microduring "Setup" to
prevent falsetriggering of V
Sweep Loss duringRGB Cut Offadjustment.
FromSweep Loss
HV Sample
IX01
39
45
H Out37
FBP InOsc.
XX01
1
87
SW + 115V
Def.H Pulse
58
Conv +28VQ777
T702
H. Def. Yoke G
H. Def. Yoke B
H. Def. Yoke R
T701
24
H.Blk.
To H. Sweep LossDet. Circuit QC13
IH013 Gen
10
Drive
9
10
HighVoltage
TH01
12FB In
HVCO
VCC
DP-6X SERIES CHASSIS HORIZONTAL DRIVE CIRCUIT
Signal PWB 125
Q701
H.Blk.
H Drive
Com1
Error
1
To Micro 62 for OSD,Auto Prog, SD, AFC
63 1080i Real _CY
See Voltage and WaveformChart on next page.
Y2 In
Rainforest IC
4
6
PDT2
IX02
3
5
R748
R730 C725
R735
D709
Side Pin Modulator
6Q709
Q706
To Dynamic Focus QF01
RH07
DH04
11
RH22DH059
QH02 QH01Horizontal
Output
SW +115V
Ref. V.12
DH01
SW +10.5VRH02RH01
CN01 7OVPRH26 DH14 DH13 5
50P
14RN15 DN02
From Sweep LossDet Circuit QC07
Page 126Stops H. Drive
RN16 DN12
41 Fixed (No Switch)H Freq Sw
PMR
PMG
PMB42
Deflection PWB 135
50 H SyncHD In
C
E
BDN03
QH04
PDS2
AA
SW +10.5VD722
D715
10SW +10.5V
3
From Power Supply 134
SW 9.3V
and
SW +10.5V
Note: The number after the PWBlocation shows actual page in the
Service Manual.Example: Power Supply 134
(this circuit portion is on page 134)
Page 134Page 126
126132
126 132
134 135E947
From Power Supply 134
PAGE 05-02
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THIS PAGE INTENTIONALLY LEFT BLANK
DP-6X CHASSIS TRAINING PACKAGE
MUTE CIRCUIT INFORMATION
SECTION 06
THIS PAGE INTENTIONALLY LEFT BLANK
Signal 4/7Mutes Audio
PAGE 06-01
DP-6X CHASSIS VIDEO MUTE GENERATION CIRCUIT DIAGRAM
Be sure to return the Remote Control toNormal Mode after DCAM.
CLU-4361S p/n HL02291When Convergence is adjusted by this Remote, this Remote must be changed to DCAM mode.Remote begins in TV mode.While holding the "TV" key down, press and release "MENU" then press and release "INFO" thenrelease the "TV" key.
CLU-4361SReturning the Remote to Normal ModeRemote begins in DCAM mode.While holding the "TV" key, press the "0" then the "1" keys.
SECTION (10) THINGS YOU SHOULD KNOW: The Number on the Left of the Topic is the same number as shown on the Things You Should Know page on the Web Site.
• (19) Losing Analog Channels on the PinP Window (With CableCARD) ----------- 10-13
• (20) Remote Control into DCAM Procedure ------------------------------------------------- 10-14
• (21) E947 and E943 are open -------------------------------------------------------------------- 10-14
• (22) Be Careful Changing Deflection or Signal PWB ------------------------------------- 10-14
• (23) After Changing Signal PWB, the Digital Convergence has problems -------- 10-14
• (24) White Balance Won’t Adjust --------------------------------------------------------------- 10-14
• (25) After Replacing the Signal PWB, the picture is too small ------------------------ 10-15
• (26) How to Enter the I2C Service Mode ------------------------------------------------------ 10-15
• (27) Factory Reset seems to Lock Up the Set ---------------------------------------------- 10-15
• (28) Volume Level doesn't return to last setting from power off to power on --- 10-15
• (29) Cabinet makes “Popping” sounds ------------------------------------------------------- 10-15
DP-6X Things You Should Know Index
Table of Contents Page 2 of 2
Materials prepared by Alvie Rodgers C.E.T.
TOPICS PAGE
August 2007 (ver 02)
SECTION (10) THINGS YOU SHOULD KNOW: The Number on the Left of the Topic is the same number as shown on the Things You Should Know page on the Web Site.
• (30) CRT internal grid “Snaps” or may be described as “Pops” -------------------- 10-15
(01) ATSC Reception problems: Important information to gather when encountering a customer with ATSC reception problems. Please gather all information listed below before calling for Technical Assistance. (See below for contact information). 1. Make sure we are dealing with ATSC reception issues only, please. 2. Model and serial number...By the way, we are placing ALL model and serial
numbers on the front right hand side of the units. 3. Did the customer run auto programming? Please run auto programming again just in case. 4. Signal strength on this channel? Available through customer menu. 5. What kind of antenna are they using? Rabbit Ears? Roof antenna? Are they using antenna rotor? Cable? 6. What is the Software version? This information is available through the Customer’s menu. 7. What channel is having the problem? Digital channels are a main channel and a sub channel, always
displayed as : 25-1 or 25-2 and 25-3, 25-4, etc,. Please ask for all sub channels available, sometimes there are more than one or two.
8. Do they know it's respective channel on analog format (NTSC)? Is the analog channel coming in ok? Just to give you an example: San Diego channel 8 NTSC is equal to channel 25-1 ATSC, when you do auto programming, you will see 8-1 on TV OSD, but you can also enter: 25-1 and you will also get to the same 8-1 digital channel. We all must be very familiar with this fact in order to see if we can select the channel directly, without the need to do auto programming. See www.transmitter.com for state by state listing of analog/digital equivalency table, their location and their power.
9. What is the stream reception format? You will see: 480i, 480p, 720p or 1080i on the upper section of the OSD when receiving.
10. What is the Channel content? Is this ABC, CBS, PBS? And station identification is needed, like WYCN TV Channel 5 or whatever.
11. Try to contacted the Local Station? Explain the problem to the engineer. They may be able to investigate and make some corrections. If you did speak to someone at the station, whom did you talk to? Name and phone number or e-mail address?
12. Local stations are starting to provide a feedback for their customers mostly through a web page....They al-ways want to know if customer are receiving the Digital Channels and are always looking forward to get feedback.
13. Try PIP and make sure the PIP channel is also the same channel as the one they are trying to receive with Ant C.
14. Describe problem and if possible, send a picture/drawing or a video. 15. Is sound OK? 16. Customer name and phone numbers, please. Once this information is gathered, please contact Hitachi Technical support (see below) and provide all information gathered. Phone: 800-393-2369 (Authorized Servicers only) Phone: 619-591-5352 (Non-Authorized Servicers only) FAX: 619-482-8045 or E-MAIL: [email protected] IMPORTANT NOTE: Are you aware that HDTV/SDTV Channels that are shown On Screen may not be the actual channel numbers that you would press on the TV remote control to tune that specific channel? In other words, what you see on the PTV Screen is called VIRTUAL CHANNEL. As and example, to receive (8-1) in San Diego (with out running auto programming in a DTV ) you will actually need to tune to channel 55. Because UHF channel 55 is were they are receiving the Digital Virtual channel 8-1. The Virtual Channel information is embedded within the data re-ceived is the Virtual Channel ID. This was decided because the Customer will know that the HDTV channel they are watch-ing will be a known channel in their area. This will help them to recognize the channel of origin. Below is an excellent web site to visit. This can be a tool that will help you KNOW what the actual channel is when you are going to randomly select them by remote control number keys. You can just select it without a need to run auto programming (on most units ~ with exception of the WXW prior to software upgrade). http://www.transmitter.com DTV Channel Allocation for the whole USA…
DP-6X THINGS YOUR SHOULD KNOW
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(02) Lead Free Solder beginning in 2004. 2004 product will use lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures. Lead free solder indicator: Printed circuit boards using lead free solder are engraved with an "F". Properties of lead free solder: The melting point of lead free solder is 40 ~ 50o F. higher than leaded solder. Servicing solder: Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.) Precautions when using leaded solder: Remove all lead free solder from soldered joints when replacing com-ponents. If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the lead free solder has been completely melted (do not apply the soldering iron without solder). Servicing soldering iron: A soldering iron with a temperature setting capability (temperature control function) is recommended. The melting point of lead free solder is higher than leaded solder. Use a soldering iron that main-tains a high stable temperature (large heat capacity), and that allows temperature adjustment according to the part being serviced, to avoid poor servicing performance. Recommended soldering iron: Soldering iron with temperature control function (temperature range: 320-450 degrees F . Recommended temperature range per part:
(03) Fan Part # GS00821: In Digital Module • The Fan Runs all the time. This is normal. • All sets with a Digital Module (ATSC Tuner) has a Fan. • A cooling fan is utilized in all Digital Modules (ATSC). It is normal for the customer to hear air
circulating and the fan running if the room is quiet. This can be compared to a computer cooling fan as they are very similar. The customer may not be aware of the fact that his or her projection tele-vision has a cooling fan incorporated. Please educate the customer with this information. Do not assume that just because the customer can hear the fan that there is a problem with the fan. Only if the fan produces a grinding or ticking sound should it be considered to be defective.
• These Fans are running ALL the time. This is NORMAL operation. These applies to ALL Hitachi units with an integrated ATSC tuner.
• This is, is getting to be a very important issue for all our customers. Remember, one huge difference between their previous TV sets and any of these NEW Digital Models is the fact that their previous TVs never had a fan...therefore, there was no fan noise at all!
• Now, once they notice the fan noise, some of them do not like it. First thing they do is: They call for service. Many Technicians MAY NOT be familiar with these units, therefore, they can not tell if the noise is actually normal or too noisy!
• Replacing the fan just to see if the noise goes away or to reduce it is just too much work and it will be for noth-ing....then the Customers will be disappointed to find out the noise is still there (after any of the fans/modules/or even complete TV sets were replaced). But once they hear the explanation related to the REASON why they hear this noise, they always understand.
• New Technology requires the use of faster processors, these processors require the use of cooling fans. Al-though minimal, these fans do make noise when they are running, this is "normal" operation noise.
Part Soldering iron temperature
Mounting (chips) on mounted PCB 320 +/- 30 degrees F
PCB without Mounting chips 380 +/- 30 degrees F
Chassis, metallic shield, etc. 420 +/- 30 degrees F
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-03
(04) CRT- I need to Change All Three CRTs, what to do? In a situation where it becomes necessary to replace all three CRTs, it may not be as big a job as first considered. There are many times in which if a couple of First steps are followed, the job may be very easy thanks to Magic Focus. IMPORTANT: You must find the reason for the CRT burn ( if this is the reason for replacing all three CRTs at once), be-fore installing the new CRTs. Look for Deflection collapse caused by poor solder connections on the Yoke Plugs, Conver-gence Yoke Plugs, Vertical Output IC, Drive Transformer and/or Flyback. Make sure the H and V Sweep Loss circuit is func-tioning. Make sure the Yoke plugs are seated properly. Clean all Spark Gaps. Pry off the caps on top of each spark gap and clean the contacts with a thin, fine sand paper. Reinstall the caps. Solder all interconnections between the Signal PWB and the Deflection PWB. THINGS TO REMEMBER: • If at least one of the defectives CRTs is properly set up (in relationship to geometry) then it can be used as a guide for
setting up the new CRTs. This means you have checked that the Center is in dead center and that the lines running left to right and top to bottom are straight and all the grids are linear.
• Magic Focus will be your biggest friend in the process. • If at all possible, do not remove all three defective CRTs at once. Leave the best adjusted CRT in place until the other
two new ones have been installed and aligned. • You most likely will not need an Overlay unless the set is already a mess related to geometry. HERE IS THE PROCESS: • After receiving the new CRTs, first determine which of the defective CRTs is best aligned. (This doesn't matter which
color). For our discussion we will say it's the Red. • Remove the Defective Green CRT. • Install the New Green CRT. • Clear the RAM. (With Power Off, press and hold the Service Only switch. The press the Power Button on the Front
Panel). Set will come on with cleared RAM. No Convergence Correction. • Loosen the Yoke on the New Green CRT and rotate it until it matches the Defective Red Vertically and Horizontally
(TILT) while looking only at the center. Don't worry if the Center isn't aligned with the Red. After adjusting the Tilt, tighten the Yoke.
• Run a string from the top left corner to the bottom right corner. • Run a string from the top right corner to the bottom left corner.
(This will give you a center mark where the strings cross.) • Now, using the centering magnet for Green, adjust Green to the center mark where the two strings cross.
Remember that the RAM has been cleared. In this condition the Red is to the Left of Dead Center and the Blue is to the Right of Dead Center. This is normal.
• Now, Power Off the set. Then turn it back on. This will restore the previous Convergence stored data. If you checked the Red centering before all of this began, (Item 1 under Things To Remember above), then the new Green CRT and defec-tive Red CRT centers should now match.
• Run Magic Focus. This should now return the set to proper Convergence or at least very close where only a minor touch up should be required. You can do this touch up now or wait and do it after all three CRTs has been replaced.
Now, do the same thing with the New Blue CRT starting with step (2) above. REMEMBER: The Blue is offset from dead center to the right. Please make sure to check for the exact measurement because each screen size is different. • Run Magic Focus. This should now return the set to proper Convergence or at least very close where only a minor touch
up should be required. You can do this touch up now or wait and do it after all three CRTs has been replaced. • Now replace the Red CRT. REMEMBER: The Red is offset from dead center to the left. Please make sure to check for the exact measurement because each screen size is different. • Run Magic Focus. This should now return the set to proper Convergence or at least very close where only a minor touch
up should be required. You can do this touch up now. • If there is a need for a minor touch up, remember to do the following; • First: Save the new adjustment DATA. Press the "PiP-MODE" Twice (2 Times). After Save is complete, press the PiP-Mode button one time to return to the Digital Convergence Grid. • Second: Perform the Sensor Initialization: Press the "PiP-MODE" once, then press "SURF". After Sensor Initialization is complete, Press the “PiP-MODE” button one time to return to the Digital Convergence Grid. Power off the set. Job complete.
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-04
(05) How to do a Software Upgrade on the ATSC Digital Module. Check web site for current version. Preliminary Procedure: Note: MMC = Multi-Media Card (Page 1 of 3) Gain access the rear of the TV. Insert the MMC (Figures 1 and 2) into the Multi Media Card slot as shown in Figures 3 - 6. Push the MMC in until you hear a click, indicating the MMC is properly inserted.
Example of Software Version Note: Software Version number will vary in accordance to the Version Released. Your Version may be different than the one shown.
Rear View - TV Jack Panel (Figure 3)
Close Up View of the MMC Slot (Figure 4)
Continued on Next Page
MMC goes in this direction (Figure 5)
MMC Fully Inserted (Figure 6)
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-05
Upgrade Procedure: Step (1) Insert MMC Card fully into slot until it clicks. Step (2) Turn the TV ON. Step (3) Press the MENU button on the Remote. Step (4) Menu will appear
Step (5) Thumbstick Down and Highlight SETUP and press SELECT.
Step (6) The Setup Menu will appear. Step (7) Continue to Cursor down and highlight Upgrades and press Select.
Step (9) Cursor Down and Highlight Upgrade Now and press Select.
Continued on Next Page
Step (8) If the MMC card isn't already inserted, insert MMC card fully until it Clicks.
Continued on Next Page
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-06
Step (12) After Software upgrade/s have been successfully completed, please turn the power off. Remove the MMC Software Upgrade Card from the rear of the TV. Then unplug the AC power cord for 60 seconds to reset the TV. Plug in the AC power cord. Repeat steps 2 through 8 to check the software version for verification.
Step (10) The Upgrade begins. Upgrade will take approximately 2 ~ 3 minutes.
Step (13) Your software version should now show correct version number as shown on the MM Card front Label.
Note: To remove the MMC, gain access to the rear of the set. Push the card in until a click is heard, this will release the MMC and then remove the card.
NOTE: The MMC must be removed and returned to Hitachi in order to receive any future upgrades.
Step (11) After the Software Upgrade is Complete, *If your product has already been upgraded or is the same version as the one on the MMC, this step will be bypassed. Note: The old Software Version will still appear on the screen. The updated software version will not appear until the TV is Reset. See the Next Step.
Continued on Next Page
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-07
SOFTWARE UPGRADE PROCEDURE QUICK STEPS. 1. Insert the MM Card software upgrade card into the MM Card slot in the read of the set. Be sure to
push in until a click is heard. Note. Label on the card is to the left. 2. Turn the Set On. 3. Press Menu and Select Setup. 4. Thumbstick down to the 2nd page of the Setup Menu and Select Upgrades. 5. Thumbstick down and Select Upgrade Now. 6. After completion, Power off the set, Remove the MM Card, wait 60 seconds. 7. To verify the upgrade took place, repeat steps 2 through 4 and check the version. NEW: The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link. (06) Download the Latest Software Upgrade Software The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link. (07) What is the Size of the Allen Wrench for removing the Split Cabinet Screws? 4 mm (08) What equipment can I use to generate an HD signal? Please see our web site at the following address; http://www.hitachiserviceusa.com/Service/Seminars/DP4X-Web/09-things-to-know/16_HD_Gen.htm (09) Some VGA to Component Adaptors can cause No Picture or Sync Problems.
• Some Set Top Boxes do not have Component Outputs. They have VGA outputs. In this case, a VGA to Component adaptor will be needed. Some of these adaptors can cause a problem if they do not have Tri-Level sync outputs.
• They may cause other problems as well, like Horizontal Shift or unstable pictures. • Please remove the VGA to Component adaptor and test the Component inputs by using a Component
generator directly into the Component inputs to verify. • Please see the VGA to Component adaptor recommendations on the HD Generator
suggestion page (Link show in (13) above).
Note: If a Component Source isn't readily available, use Composite Video input into the "Y" jack. Insert a dummy RCA jack into the "Pr" plug to force the set into the Component Mode.
The signal will be black and white, but the picture content (other than color problems) can be checked.
(10) Picture Dark, abnormal, Changing Color Temperature.
(Also see Item 15 about checking for bad CRT)
(Also see Item 40 about Deflection Section for Q806 CRT Bias Voltages)
Clean the Spark Gaps on each CRT PWB. Remove the Cap, clean the contacts with thin fine sand paper, blow out, reseal.
PAGE 10-08 1 of 2
CONVERGENCE CAN NOT BE CORRECTED
1. Convergence can not be corrected (How to Trouble Shoot)
What Color has shif ted? A
DCU OUT CHECKPDCU pin 2 (RH)....(*1)PDCU pin 4 (RV)....(*2)
DCU OUT CHECKPDCU pin 6 (GH)....(*1)PDCU pin 8 (GV)....(*2)
DCU OUT CHECKPDCU pin 10 (BH)....(*1)PDCU pin 12 (BV)....(*2)
GreenRed Blue
OK
Which has shifted?VERTICAL line or
HORIZONTAL Line?
Which has shifted?VERTICAL line or
HORIZONTAL Line?
Which has shifted?VERTICAL line or
HORIZONTAL Line?
OK OKRepair DCU
Circuit
HORIZONTALLine
VERTICALLine
NoGood
NoGood
CHECK or CHANGERK18 & RK19 (RV)IK01 (Conv Amp)
CHECK or CHANGERK14 & RK15 (RH)
CHANGEIK01 (Conv Amp)
HORIZONTALLine
VERTICALLineCHECK or CHANGE
RK26 & RK27 (BV)IK02 (Conv Amp)
CHECK or CHANGERK22 & RK23 (BH)
CHANGEIK02 (Conv Amp)
CHECK or CHANGERK34 & RK35 (GV)IK02 (Conv Amp)
CHECK or CHANGERK30 & RK31 (GH)
CHANGEIK01 (Conv Amp)
VERTICALLine
HORIZONTALLine
NoGood
DP-6X CONVERGENCE TROUBLE SHOOTING Page 1 of 2
All Colors
Before begining, resolder all connections on the Convergence Output STKs
ALSO CHECK Conv.Mute PDCU pin 1. (Normal Hi).IK03 for leak or short.Convergence Mute (Reset)DC29 for leak.QC17 for leak or activa tion.
DP-6X CONVERGENCE TROUBLE SHOOTING Page 2 of 2
(3) PDCU pin 36 (V. BLK)
16 ~ 17 (ms)
Vpp = 4~5 (V)
*1 Indicates see Figure 1 below
*2 Indicates see Figure 2 below
*3 Indicates see Figure 3 below*4 Indicates see Figure 4 below
DP-6X THINGS YOUR SHOULD KNOW
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(12) The Model and Serial Number is on the Front Right Hand Side for easy access.
Figure 1 shows the location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly.
Figure 3 shows the actual location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly. This picture is actually of an LCD Projection set, but the location is the same for all classes of PTVs.
Figure 2 shows the a Close Up of the Model and Serial Number tag.
(13) Using HDMI and a Cable Box, some HD signals give an Error Message: ERROR NOTICE: HDMI Interface with some Cable Boxes. When selecting some HD Channels, the notice reads as follows: "The HD content protection on your display has been compromised. Please use the Y Pb/Pr Outputs for your HD connection". Or "Monitor Does not support HDCP" or “Lower Resolution” or “Snow”. The warning will show up at power on and will remain there if left alone. EXPLANATION: "This is not a problem with the Projection Television". With the addition of Digital transmission, many avenues of private digital data and usage privileges are being incorporated into the transmission stream. During this age of HD infancy, these codes are being manipulated and can generate this situation. HDCP is the issue here. Please contact your local cable operator for additional information. A temporary work-around is to disconnect and reconnect the HDMI cable between your cable box and TV. Your patience is appreciated until this issue can be resolved by the cable operator. NOTE: Both the TV and the Set Top Box Must Be ON.
Figure 1
Figure 2
Figure 3
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-11
(14) HDMI Doesn't Work (Also see Service Bulletins PTV 07-01 about HDMI Improvements) Please clean the HDMI input contacts with Isopropyl Alcohol using a stiff thin brush. • Symptom -Using HDMI connection, black picture with NO SYNC OSD.
Sometimes contaminants can cause poor connections on the DVI and/or HDMI inputs. Cleaning these contacts will eliminate the problem. (15) Using the Cutoff Adjustment to check for a bad CRT.
• Symptoms: Also See Item 10 Cleaning Spark Gaps problems and Item 40 • Color Temperature changes. • Picture Flickers. • Brightness fluctuations.
Did you know that you can check for a defective CRT (internal grid shortage) by looking closely at the single horizontal line while in the Cut-Off adjustment mode?
In this mode, the Vertical is collapsed so the Service Technician can adjust the Cut-Off level of each CRT. (Note: This determines the Life Span of the CRT. If this adjustment is too bright, the Tube Life is shortened).
PROCEDURE:
• Enter the I2C Service Menu and Select the SERVICE adjustment by using the cursor down and then press cursor right. Vertical will collapse.
• While looking at the single colored line, look at any color to see if it's blinking or flickering. If it is, the CRT needs to be replaced. The Room should almost dark to make the line easier to see. You may have to turn the Screens up slightly to see the line more clearly. Remember, the line should be just barely visible.
• If a Color can't be turned completely off, this too indicates a defective CRT and can quickly identify when CRT is bad.
• Replace the defective CRT.
(Note: This isn't related to the Digital Convergence Grid. The Cursor (adjustment point) will blink in this mode and this is normal). (16) POD (Cable Card) Possible Problems or POD Digital Tuner Problems: Make sure Software is current 1: Make sure software is current version: (See the Web Site to confirm current version). 2: If after inserting the Cable Card, the unit IDENTIFIES the Cable Card and goes on to provide a
notice as to how to start Service or it just starts receiving the approved programming. If all this goes on, it is obvious that card and the host (receiver) have established what is commonly known as the "Handshake" and all is Normal. If for any reason, this does not happen, and the "Handshake" does not occur, there still may not be a problem. Try leaving the Card inserted for a longer period of time. If this seems to take too long, insert the card just before retiring for the evening. Leave the Card in-serted over night. Set does not have to be on. There are many reasons that the Card may take an ex-tremely long time to initiate the handshake function. This could be due to traffic, server issues, etc... Please make sure to follow these steps first before considering the Cable Card as being defective.
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DP-6X THINGS YOUR SHOULD KNOW
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If after an overnight attempt has failed to initialize the Card, then most likely there is a problem with the Cable Card itself. Please get a different or a new Cable Card to try again. (17) POD (CableCARD) no longer works after Factory Reset or Memory Initialize. • The CableCARD will no longer work after replacing the Digital Module. • The CableCARD will no longer work after replacing the Signal PWB with the Digital Module. When the Customer first receives their Cable Card, they must insert the card and have it authenticated by the Cable company. Then the customer must call the Cable company with the Host ID information. After this, the Cable company then sends out data that provides the Cable card with channel mapping and the allowable channels for this particular customer to view. • If a Factory Reset is preformed, the Cable Card is no longer authenticated and the customer must
repeat the process of re-authentication. • If a Memory Initialization is preformed, the Cable Card is no longer authenticated and the cus-
tomer must repeat the process of re-authentication. • If the Digital Module is replaced, the Cable Card is no longer authenticated and the customer
must repeat the process of re-authentication. • If the Signal PWB with the Digital Module is replaced, the Cable Card is no longer authenticated
and the customer must repeat the process of re-authentication. (18) Lip Sync Issues: This is a news letter written by an engineer at KFMB in San Diego. It explains the cause and things that may help when a problem of "Lip Sync" is encountered. KFMB Digital TV Newsletter Number 19 . January 19, 2003 READ MY LIPS The HDTV forums have been abuzz about poor lip sync on several local HDTV channels. This is potentially a real nightmare for digital broadcasters, and I'll take a little time here to explain why, and what you can do about it. By definition, lip synchronization is another way of saying that the audio portion of a TV program matches in timing the video portion. In the good old days, this simply meant that the lower loop of film on the projector was not of the right size because your projec-tor slipped a few sprockets and you would just reach over and adjust it during the next break. In about 1980, video synchronizers started showing up at TV stations that allowed us to use special effects with sources that were of a completely different timing, like remote news vehicles and networks from outside the station. Without those synchronizers, fading or special effects would just look like a mess on-air. However, they introduced a problem: they delayed video without delaying audio. This wasn't much of a problem for a single frame of delay because few people can detect it. But add a couple of frames for network processing and complex effects, and suddenly you have visible lip sync problems. Audio delay units were introduced, but few stations used them. KFMB used a monaural one until we went stereo in 1990. When the Audio Engineering Society (AES) defined digital audio in the early 1990s, they seemingly forgot to deal with synchronizing audio with video. There are no clues built into the AES audio stream for where a given audio frame is in time with respect to an accompanying video stream. There's no chance of having automatic lip sync. Fast-Forward to 1999, we open a new all-digital master control and disk drive servers to replace tape-delivered programming and commercials. Some sources have ways to adjust audio timing, and some don't. Now we have a digital transmitter and an analog one. When producing the news, we find that the more complex a video effect is, the more video delay we have, with real lip sync issues when carrying the video from several remote sites on the screen at the same time. We build a box that tells our new audio synchronizer/converter to delay a given amount depending on the combination of sources used. The box works well. In 2001, we open a new all-digital production control that fixes the variable delay problem. Life is good, but intermittent problems with lip sync still show up. Software bugs and corrupt data occasionally plague the station's digital encoder. Remote satellite sources still have lip sync issues at their source left for us to solve on the fly. In late 2002, our digital stream is added to the local cable companies. Since there's zero transmission loss, they use our on-air signal for a redistribution medium. However, they have to re-encode the signal in order to get the correct channel information, program guide, and 256-QAM modulation scheme, thereby introducing another potential source of lip sync problems. As digital viewers, you too can introduce your own problems: You are at the mercy of electronics designers as to how much audio or video delay they introduce.
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DP-6X THINGS YOUR SHOULD KNOW
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If you use analog cables to transfer audio between your receiver or set-top box (STB) and your audio amplifier/processor, you have a digital-to-analog converter at the STB and an analog-to-digital converter at the processor/amplifier, each introducing audio delay, whether a little or a lot. If you have acoustic effects chosen on your amplifier, you may introduce more delay. If your receiver/STB gets corrupt data or becomes otherwise confused, it can introduce delay by mistake. What's a Mother to Do? First of all, make sure you have a problem. We evaluate for lip sync watching for speech in which the on-camera person moves his or his lips to annunciate plosive "B" and "P" sounds. Be careful that you're not seeing it on a poorly dubbed single commercial or program. We're going to ask you to be forgiving when there may be a temporary problem with a hastily organized satellite remote news story--bad things happen in the field sometimes. If you encounter disturbing lip sync problems, answer a few questions before you ask for help: Does the problem exist on all over-the-air, cable, and satellite channels? If so, you surely have a local problem. Try resetting your receiver/STB and processor/amp by unplugging for a few seconds and then plugging back in. What is the source? Does the problem exist with all commercials, programs, and live news? Note this to help the person you complain to. When did the problem begin? Have you checked the enthusiast forums to see if others have the same problems? A nice website for San Diegans is http://hdtv.forsandiego.com. Have you reset your receiver and lip sync is still an issue on all channels? You should contact the cable company in order to determine whether the problem is with you, them, or their sources. Does the problem exist on only one channel? Call the provider (cable or DBS) or the source channel. Each will have to analyze the source and determine the source of the problem. At most stations, they have access to view their own sources, line output signal, analog air signal, digital air signal, and Time Warner cable analog and digital signals. We count on Cox Cable to evaluate our signals on their system. (19) Losing Channels on 1/2 of the PinP Window (Analog Half)
• Most often noticed when using a Cable Card. If the Cable service provider decides that they are going to all Digital Channels, then our TVs, will lose ALL or most channels on the Analog Tuner side. The Channels they lose will be the ones that are Digi-tal (QAM). Only the Analog channels will remain, if any. There is nothing wrong with your TV set. Please note that this set is using One Analog and One Digital tuner. Every time we use PinP and the 2nd tuner is selected as the Sub picture, the Sub picture can ONLY BE ANALOG (NTSC). DETAILS: As Cable Companies modernize, they are approaching a Digital solution. This improves picture per-formance even on the lower resolution signals and helps to minimize transmission loses. It also im-proves band performance. These Cable companies provide a "Set Top Box" (Cable Box) to receive and decode these digital broadcast. So as it stands right now, the Cable companies can be broadcast-ing Analog (NTSC), Digital NTSC (QAM) and SD/HD Digital (QAM). Note: QAM (Quadrature Amplitude Modulation). If the Customer is using a Cable Box, then they do not notice a problem, since the Cable Box only outputs one channel at a time.. If the Customer decides to hook the Cable directly into the set and bypass using a Cable Box, then is-sues arise that may appear to be a problem. Sets which include an HD Tuner will receive ATSC (over the air SD/HD digital broadcast) and QAM (Cable digital broadcast). The Analog (NTSC) tuner will only receive NTSC analog broadcast signals. Most Customer's who decide to hook Cable directly into the set, will in turn most often decide on using a CableCard application. This will allow the set to receive the Channel Mapping (what channels are broadcast on what frequencies) from the Cable company so their channel selection will match the Channel listings provided by the Cable company. So when they now try to activate PinP and have the Sub picture selected on the Analog tuner, there will be only a few channels available, if any. These will be the NTSC channels only. Many Servicers are trying to "fix" these problems....After replacing many parts, they end up exactly at the same place. PIP with CableCARD will not be getting most channels on the one side using the Ana-log Tuner. There is nothing wrong with your TV set.
(Continued from previous page)
DP-6X THINGS YOUR SHOULD KNOW
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(20) The new Remotes MUST be placed in Digital Convergence Adjustment Mode (DCAM) to adjust convergence. ENTERING THE REMOTE CONTROL INTO THE DIGITAL CONVERGENCE MODE (DCAM). To enter the Remote Control into DCAM do the following;
Remote must be in the TV mode. Press the TV key on top right to place in TV mode. • Press and hold down the TV Key • Press the MENU and then INFO key, release the TV key.
RETURNING THE REMOTE CONTROL TO THE TV MODE FOR THE CLU-3842WL Remote will already be in DCAM mode.
• Press and hold down the TV key Press the 0 key then the 1 key to return to TV mode. (21) E947 and E943 are open. IK01, IK02 are found to be the cause problem. Also please Check: CK17, CK18, CK19, CK20 as they may be shorted. (Note: Please use generic capacitors for replacement parts: All Caps are 0.1uF / 50V) Do not order from parts. Obtain this caps. locally… (22) Be Careful Changing Deflection or Signal PWB,
Damage to the interconnect pins can cause problems. Such as "Convergence has problems". (23) After Changing Signal PWB, the Digital Convergence has problems When the Signal PWB is changed, there are some adjustments lost that affect Digital Convergence. These adjustments MUST BE corrected in order for Convergence to function normally. The loss of these adjustments can cause;
• The Deflection Vertical and Horizontal Size to be altered because H POS and V POS have changed. • Magic Focus won't run because Magic Focus has an Overflow Error
To correct this issue: Re-adjust (thorough I2C) H SIZE, V-SIZE, H-POSI and V-POSI (24) White Balance Won’t Adjust
• This can be cause because "Color Temperature" wasn't set to "HIGH" before making these adjustments. • All Color Temperature settings are dependent upon the High Setting.
The Following Adjustments are related to this information: Also, the Initial Values states are a Good Average setting in case the original values were not written down before replacing the Signal PWB.
I2C data for High light white balance • Green : G DRIVE (HIGH) 3F (initial data) (Adjustable) • Red : R DRIVE (HIGH) 3F (initial data) (Adjustable)
I2C data for Low light white balance • Green : G CUT OFF (HIGH) 7F (initial) (Fixed data) • Red : R CUT OFF (HIGH) 7F (initial) (Adj. data) • Blue : B CUT OFF (HIGH) 7F (initial) (Adj. data)
Note: Also it is important to set the Customer's Controls to their appropriate conditions before making these adjustments. VIDEO Control : Contrast is MAXIMUM, Others are center.
DP-6X THINGS YOUR SHOULD KNOW
PAGE 10-15
(25) After Replacing the Signal PWB, the picture is too small. This is because the Horizontal and Vertical Size pots are at one end.
• Center both pots. • Then adjust Horizontal and Vertical Size
(26) How to Enter the I2C Service Mode. To enter the I2C Service Mode: (With the TV On, Press and hold the MENU key on the control panel, then press Menu ~ 8 ~ Select on the Remote. The Service Menu is displayed.) To Exit press EXIT on the remote or INPUT on the control panel. (27) Factory Reset seems to Lock Up the Set.
After Factory Reset is performed, the set will go all Green and no functions will work. The set must be unplugged, wait 10 seconds, then reapply AC. This is the normal process.
(28) Volume Level doesn't return to last volume level from power off to power on. Turn on “Quick Start” in the Customer’s Menu. (29) Cabinet makes “Popping” sounds.
• This is normal due to heat expansion.
(30) CRT internal grid “Snaps” or may be described as “Pops”. This is normal due during the curing process. This should be rare and eventually go completely away over time. If this continues after the first 90 days or is happening frequently, then it should be considered a problem. (31) CRT Spot prevention. See Service Bulletin PTV 06-01B is the Service Bulletin Section (32) Clock loses time. The Photo Coupler that provides the AC signal to the Microprocessor is located on the Deflection PWB, I-903. (33) Magic Focus Doesn’t Run. (Note related to a Circuit Failure). Make sure the Customer hasn’t set the Convergence in the Customer’s Menu to Manual. (34) Q777 Failure (Shorted) E947 Open. See Service Bulletins PTV 07-02A. Requires installing a Kit X480315. (35) Vertical Distortion (only at the bottom of the picture). See Service Bulletins PTV 07-02A. Requires installing a Kit X480315. (36) Horizontal Line noise at the top corners in bright scenes. See Service Bulletins PTV 06-02. Requires installing a Kit X480315. (37) Dark Picture. See Deflection Section of the Training Package and see Q806 CRT Biasing Circuit for voltages. (38) Contrast will reduce automatically when viewing Photos if left on the screen for 3 minutes. This is normal operation
Details: If one or more PRTs have a spot mark around the center, check the +220V filter capacitor, CP50 (DP-5x chassis) or C965 (DP-6x chassis); if value is 100 f/250V, replace with 220 f/250V (p# AL00065S). See images below for physical location; Figure 1 for DP-5x chassis, Figure 2 for DP-6x chassis.
PTVPage 1 of 1
June 2006
Hitachi America, Ltd., Home Electronics Division National Service
Details: If a symptom such as shown in Figure 1 appears, (more visible in brighter scenes), check the Deflection PWB to see if location K025 has been replaced by a coil. If there is still a jumper in place, replace it with a 47 h coil, p/n BH01889R. See Figures 2 and 3 for location.
PTVPage 1 of 1
June 2006 Hitachi America, Ltd., Home Electronics Division National Service
PTV 06-02
Figure 1 - Horizontal noise in upper corners
Figure 3 - Component sideFigure 2 - Solder side
PAGE 10-16
MODELS: 51F59, 57F59, 65F59, 51F59A, 57F59A, 65F59A, 51F59J, 57F59J, 65F59J (All DP-6X Chassis) SUBJECT: HDMI IMPROVEMENT SYMPTOM: Strange symptoms like TV Shuts Down, Tint Shifted, All Red or Pink Picture, Sync loss, etc, when using HDMI output from some Set Top Boxes. Usually starts after warm up period of 1/2 hour. May be temporarily corrected by AC Reset or by turning the TV Off and On. COUNTERMEASURE: Make the following change to the I2C Service Menu. PROCEDURE: 1. Turn Set On 2. Receive any Channel 3. Follow the next procedure to access the I2C Service Menu:
Projection TV Page 1 of 2
January, 2007
Hitachi America Ltd. Ubiquitous Platform Systems National Service
Continued on Next Page
ADJUST MODE DP6X SERVICE SUB BRIGHT WHITE BAL HIGH WHITE BAL MED WHITE BAL STD H POSITION ** V POSITION ** FACT RESET
ADJUST MODE DP6X VCHIP CLOCK TEST —:—:— AFC TEST OSD POSITION ISF MODE I2C OPEN MAINTENANCE MEMORY INIT
DEVICE ADJUST MODE DVP-X FC4 —:—:— TA1383 TA1360 R2S11008 SiL9023 E2PROM FORMAT AUTO
Page 2 of 2 4) When you enter the EEPROM Writing Mode menu, please change all of the 19 data values in
accordance to the following data table using Cursors ◄ ► keys.
5) Press the Select Button after each change of data in order to save the change. 6) After changing all 19 address location to the new data values, exit the I2C Service Menu and
Turn Off the set. Unplug the AC and wait 5 seconds. Re-apply AC and turn the set back on and re-enter the I2C Service Menu, (See Page 1 for procedure).
7) Confirm S/W Version is changed from V019 (white) to V195 (Magenta) in Adjustment Menu OSD
0*A00 FF
0*A01 FF
0*A02 FF
0*A03 FF
0*A04 00
0*A05 00
0*A06 00
0*A07 00
0*A08 00
0*A09 00
0*A0A 00
0*A0B 00
0*A0C 00
0*A0D 00
0*A0E 00
0*A0F 00
0*A10 00
0*A11 00
0*A12 00
EEPROM DATA
00
13
00
C3
00
0C
89
9C
00
0C
89
9D
05
68
FC
9F
89
0C
30
ADDRESS ORIGINAL NEW Use the Cursor ▲ ▼ to Select
Use the Cursor ◄ ► to Change Data Values
Press “SELECT” after each Data Change to Save
ADJUST MODE DP6X V019 (White) SERVICE SUB BRIGHT WHITE BAL HIGH WHITE BAL MED WHITE BAL STD H POSITION ** V POSITION ** FACT RESET
ADJUST MODE DP6X V195 (Magenta) SERVICE SUB BRIGHT WHITE BAL HIGH WHITE BAL MED WHITE BAL STD H POSITION ** V POSITION ** FACT RESET
BEFORE AFTER
NOTE: If the Version number did
not change to V195 Magenta, please
re-check all 19 Data Values. Make sure they
match the Table.
Alvie Rodgers
Text Box
PAGE 10-18
MODELS: 51F59, 51F59A, 51F59J 57F59, 57F59A, 57F59J 65F59, 65F59A, 65F59J (All DP-65 Chassis) SUBJECT: Deflection PWB Repair Kit X480315 Details: Although Hitachi Home Electronics has recently instituted a company-wide policy of product repair at board level replacement, a parts repair kit has been established for the DP-65 Chassis Deflection PWB to assist the technician to be able to repair the product on the first call or repair attempt, as opposed to having to order a board. The table below lists the components of the kit and their respective failure symptoms. Replace all parts in kit.
Projection TV Page 1 of 1
July, 2007 Hitachi America Ltd. Ubiquitous Platform Systems National Service Division
Kit Item #
Part Location Part Description Part Number Symptom
* Vertical Distortion can be highly intermittent, and is due to weak or loose grounding tabs on the heat sink (where the tabs attach to the aluminum body of the heat sink). A gentle tap-ping on the heat sink will reveal whether or not the symptom is present.
Change A: Kit Item # 4 added
Alvie Rodgers
Text Box
PAGE 10-19
ReplaceQ777 p/n CF03031F
and its Heat Sink MA01982Using Kit X480315
NO RASTER (SET DEAD)
Is Q777SHORTED?
Not related toQ777 failure
FINISH
Are HighVoltage Wires
properly assembled oneach CRT?
FLOWCHART FOR DAMAGED (SHORTED) Q777, CRT ANODE CHECK FOR IMPROPER ASSEMBLY
No
Yes
Optional Inspection
Are HighVoltage Anode Caps
properly sealed on eachCRT?
Yes
No
*See Photos on next page
No
Turn Set OnCheck for Operation
Yes
Are HighVoltage Anode Caps
arching? (Snap)
No
Yes
*Replace Q777if necessary.
Check the suspect Anode.Change the Anode Connector
or CRT if damaged.
Use the following kit whichincludes a tube of siliconeand anode lead.Part Number: H890411
Turn Set OnCheck for Operation
Page 1 of 2
*See Photos on next page
*See Photos on next page
FLOWCHART FOR DAMAGED (SHORTED) Q777, CRT ANODE CHECK FOR IMPROPER ASSEMBLY
Page 2 of 2
Apply a "NEW" layer of silicon over entire area of rubber cup.The picture shows how silicon is applied at the factor.It is not necessary to cover the lead, just the flap.
Anode lead p/n; Use the following kit which includes a tube of silicone and anode lead.Part Number: H890411