SERVICE MANUAL Colour Television Specifications Power Source . . . . . . . . . AC220-240V, 50Hz/60Hz. Colour System . . . . . . . . PAL (AV Input: PAL/NTSC4.43/NTSC/PAL-60Hz) Television System . . . . . . B/G Channel Coverage . . . . . Australia VHF: 0-11, 5A UHF: 28-69 CATV: S1-S41, X, Y, Z, Z+1, Z+2 New Zealand VHF: 1-11 UHF: 21-69 CATV: S1-S41, X, Y, Z, Z+1, Z+2 Video IF . . . . . . . . . . . . . . 38.0MHz Aerial Input Impedance . . 75W Ext. Terminals Video inputs: Phono jack x 2 (1Vp - p, 75W) S-Video inputs: Din 4 pin x 1 (Separate Y/C signal input) Audio inputs: Phono jack (L/R) x 2 (436mVrms, more than 40KW) Video monitor outputs: Phono jack x 1 (1Vp - p, 75W) Audio monitor outputs: Phono jack (L/R) x 1 (436mVrms, less than 600W) Headphone jack: Mini stereo jack x 1 Speaker . . . . . . . . . . . . . . 6 cm x 13cm x 2 pcs. Sound Output (RMS) . . . . 5W + 5W Dimensions . . . . . . . . . . . 750 (W) x 582 (H) x 503 (D)mm Weight . . . . . . . . . . . . . . . approx. 46.8 Kg Specifications subject to change without notice. Product Code: 111351617 Original Version Chassis Series: FC3-A C2SW/C2SWZ FILE NO. Model No. CP29AF2X Service Ref. No. CA29AF2X-00 (Australia) CA29AF2X-10 (New Zealand) (Australia/New Zealand) Give complete “SERVICE REF. NO.” for parts order or servicing. It is shown on the rating plate at the cabinet back of the unit. This T.V. receiver will not work properly in foreign countries where the television transmission system and power source dif- fer from the design specifications. Refer to the specification table. REFERENCE NO. SM5110507 0 7 1 4 8 5 2 3 6 9 P▲ P▼ JXMYA -/-- P P TV/AV A B CH SCAN TIMER MENU PIC MODE SWAP BASS SURROUND - + P MENU TV/AV - NOTE - Service Ref. No. CP29AF2X-10 is electrically the same as Service Ref. No. CP29AF2X-00. The difference between Service Ref. No. CP29AF2X-00 and CP29AF2X-10 are as follows: 1) Destination CP29AF2X-00...Australia CP29AF2X-10...New Zealand 2 ) The difference in a parts list is only a rated label.
34
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SERVICE MANUAL Colour Television Model No. …cncms.com.au/SANYO-SMs/Consumer-Electronics/CRT-Television/cp29af2...IC Block Diagrams-6-IC201 LA76818
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Video inputs: Phono jack x 2 (1Vp - p, 75W)S-Video inputs: Din 4 pin x 1 (Separate Y/C signal input)Audio inputs: Phono jack (L/R) x 2 (436mVrms, more than 40KW)Video monitor outputs: Phono jack x 1 (1Vp - p, 75W)Audio monitor outputs: Phono jack (L/R) x 1 (436mVrms, less than 600W)Headphone jack: Mini stereo jack x 1
Give complete “SERVICE REF. NO.” forparts order or servicing. It is shown on therating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in foreign countries where the televisiontransmission system and power source dif-fer from the design specifications. Refer tothe specification table.
REFERENCE NO. SM5110507
0
7
1 4
85
2 3
6
9
P
P
JXMYA
-/--
P P
TV/AV
A B
CH SCAN
TIMER
MENU PIC MODE
SWAP
BASS SURROUND
- + PMENUTV/AV
- NOTE -Service Ref. No. CP29AF2X-10 is electrically thesame as Service Ref. No. CP29AF2X-00.The difference between Service Ref. No.CP29AF2X-00 and CP29AF2X-10 are as follows:1) Destination CP29AF2X-00...Australia
CP29AF2X-10...New Zealand2 ) The difference in a parts list is only a rated
label.
Contents
-2-
Safety Notice
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in thepower line between the receiver and the AC linewhen a service is performed on the primary of theconverter transformer of the set.
2: Comply with all caution and safety-related notes pro-vided on the cabinet back, inside the cabinet, on thechassis or the picture tube.
3: When replacing a chassis in the cabinet, always becertain that all the protective devices are installedproperly, such as, control knobs, adjustment coversor shields, barriers, isolation resistor-capacitor net-works etc.. Before returning any television to thecustomer, the service technician must be sure thatit is completely safe to operate without danger ofelectrical shock.
X-RADIATION PRECAUTION
The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially con-structed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must bethe same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X- RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this ser-vice manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits, takenecessary corrective action. Carefully follow the instructions for + B1 volt power supply adjustment, and high volt-age check to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of a receiver.Components indicated by mark in the parts list and the schematic diagram designate components in whichsafety can be of special significance. It is particularly recommended that only parts designated on the parts listin this manual be used for component replacement designated by mark . No deviations from resistancewattage or voltage ratings may be made for replacement items designated by mark .
IC Block DiagramsIC201 < IF/Video/Chroma/Def. > LA76818
1
DC
VO
L
SW F
MD
ET
23
45
6
IFA
GC
RF
AG
C
VIF
78
910
IFV
CC
5V11
1213
BU
S
PE
AK
ING
CO
RIN
GB
LAC
KS
TR
ET
CH
SY
NC
SE
P
1415
AB
L
DC
RE
ST
CLA
MP
OS
DC
ON
TR
AS
TB
RIG
HT
1617
1819
20
CO
NT
RA
ST
BR
IGH
TR
GB
MAT
RIX
OS
DS
W
DR
IVE
/OU
T-OF
F
VC
C21
2223
FS
C/
SY
NC
SW
2425
2627
VE
RR
AM
PH
OR
VC
CHV
CC
VE
RC
/D
HO
RO
UT
PH
AS
ES
HIF
TE
R
AF
C2
AF
C1
VE
RS
EP
HO
RC
/D
1/256
CO
LOR
CLA
MP
LPF
ALC
+S
WC
LAM
P
DE
MO
PAL
SW
AC
C
BP
FO
N/O
FF
DE
LAYLIN
E
SW
TR
AP
AF
TV
IDE
OD
ET
TR
AP
LIMA
MP
BP
F
SP
LL
BP
F
VID
EO
AM
P
IFID
EN
TV
IDE
O
SW
AP
C1
TIN
T
VX
OD
DS
AP
C2
DC
AD
S.
CLA
MP
VC
O
1H D
ELAY
HO
RV
CO
FB
P
2829
3031
321H
VC
C
3334
3536
3738
3940
4142
CLM
P
4344
45
CLM
P
V/C
VC
C5V
4647
4849
50
A2C
PLL
5152
5354Audio Output
FM Output/Selected Audio Output
PIF AGC
RF AGC Output
PIF Input1
PIF Input 2
IF Ground
IF Vcc
FM Filter
AFT Output
Bus Data
Bus Clock
ABL
Red Input
Green Input
Blue Input
Fast Blanking Input
RGB Vcc
Red Output
Green Output
Blue Output
fsc output or CSync output
Vertical Output
Ramp ALC Filter
Horizontal/BUS Vcc
Horizontal Output
Horizontal AFC Filter
Flyback Pulse Input
VCO IREF
Clock (4MHz) Outupt
CCD Vcc
CCD Filter
CCD/Horizontal Ground
SECAM B-Y Input (Cb Input)
SECAM R-Y Input (Cr Input)
Chroma APC2 Filter
Clamp Filter
4.43 MHz Crystal
Chroma APC1 Filter
Selected Video Output
Video/Vertical/BUS Ground
External Video Input(Y-IN)
Video/Vertical Vcc
Internal Video Input (S-C IN)
Black Level Detector
Video Output
VCO Filter
VCO Coil 2
VCO Coil 1
APC Filter
Ext. Audio Input
SIF Output
SIF APC Filter
SIF Input
IC Block Diagrams
-6-
IC201 <IF System Block Diagram> LA76818
1112
BU
SIn
terf
ace
SA
W
5 6 4 8 7
PIF
In1
PIF
In2
IF In
9V
30K
RF
AG
CO
ut
120K
IF V
CC
IFG
ND
VIF
AM
P
VIF
1V
IF 2
VIF
3
IF A
GC
D
rive
RF
AG
C2n
dIF
AG
C
RF
AG
CD
elay
6bit
IF A
GC
Def
1bit
+ - (6 V
cc)/
7
To BU
S
3
0.02
2uP
IFA
GCIF
AG
C
Dat
aC
lock
AP
CD
et
+/4
-/4
Snd Det
Am
p
52S
IF.O
ut
Sou
ndTr
ap
Vid
eoD
et
Buz
zC
ance
ller
50A
PC
Filt
er33
00.
47u
+
PLL
Pul
l-in
SW
To BU
S
Lock
Det
Vid
eo.L
evel
3b
it
Am
p54
10p
SIF
.In
Sou
ndB
PF
VC
O.C
oil
VC
OC
OIL
1V
CO
CO
IL2
4849
VIF
VC
OC
hrom
aC
ount
er
B/N
INV
IFId
ent
OS
CC
/D
Am
p
SIF
. Sys
2bit
pre-
scal
ler
SIF
VC
O
500K
BP
FSIF
AP
CF
ilter
1K
0.01
u10
00p
53LI
MA
MP
FM
Det
FM
.Lev
el5b
it
Chr
oma
C/D
AP
CD
et
500K
Det
To BU
S
Chr
oma
VC
O VIF
Cou
nter
Res
etP
ulse
VC
OId
ent
VIF
.Sys
2bit
Pha
seD
etec
tor
A.M
UT
E1b
itV
OLU
ME
D/A
VO
LUM
EF
ilter
A.S
W1b
itInpu
tS
elec
tV
OLU
ME
(AT
T)
-+
-+
2.5V
Am
p
FM
Gai
n1b
itD
eem
-TC
1bit
De-
emph
FM
Mut
e1
bit
2 9 46 51 1
A.F
il.D
ef1b
it
VO
LUM
E7b
it
47
VC
OA
lignm
ent
AF
T10
AF
T
Vcc 100K 100K
0.1u
VC
OF
ilter
+
0.47uAud
io.o
ut
+Aud
io in
10u
Vid
eo
Out
FM
Filt
er+
1u
FM
Out
0.01u
+
to B
US
Lin
e
+
-7-
IC Block Diagrams
ThermalProtection
-
+AMP
PumpUp
1
INV
ER
TIN
G
INP
UT
2
Vcc
3
PU
MP
UP
OU
T
4
GN
D
5
Ver
. OU
TP
UT
6
OU
TP
UT
S
TAG
E V
cc
7
NO
N IN
V.IN
PU
T
IC001 < Audio AMP.> TA8200AH
4
5
3
1
2
6 9
7
10
12
118
+Ripple Filter
AMP.1
IN 1 +
+
+
+
++
IN 1
Pre-GND
400
400 20K
20K
+AMP.2IN 2 IN 2+
Vcc
Vcc
OUT 1
PW-GND
OUT 2
+
+
RL
RL
1
IN 32
Vcc
3
SW14
OUT
5
GND
6
IN1-Y7
IN1-C
8
SW2
9
IN 2
SW
6dB
(-6dB)
CLAMP
CLAMPCLAMP
BIA
S
6dB
SW
15K
SW1 SW2 OUTLH-
L IN 1LH
IN 2IN 3
IC1401 < VIDEO Switch > MM1188XS
IC501 < Vertical Output > LA78041
IC Block Diagrams
-8-
VDD VDD VDD
VDD
MIRROR 2
VDD
FLASH-DIODE
1xVOC
InvertingInput
(3x)
1,2,3
9,8,7
3x
VDD
6
5
4
Non-invertingInput
Vip
MIRROR 1
Vbias
MIRROR 3
LEVEL-SHIFTER 1
LEVEL-SHIFTER 2
DIFFERENTIALSTAGE
CURRENTSOURCES
GND
THERMALPROTECTION
Note: One amplifier shown.
CathodeOutput
(3x)
Vi
IC701 < Triple Video Output Amplifier. > TDA6103Q
IC3701 < Audio Control & Surround > NJW1138MP
10 7
1
69 8
20
22
54
NJRCORIGINAL
SURROUND &
SIMULATED SURROUND
IIC BUSINTERFACE
AGC
BIAS
TONEVOL 1
TONE
27
VOL 1
VOL 2
VOL 2
19
18
17
14
13
16
15
21
30
23242526
12
11
IN 1a
AGC SS-FIL OUT 1a IN 2aTONE
Ha TONELa
OUT 2a
CVA
CVB
CTH
CTL
AUX0
AUX1
SCL
SDA
V+
GND
VREFOUT 2bSR-FIL OUT 1b IN 2b TONEHb
TONELb
IN 1b
DEGAUSSINGCOIL DEGAUSSING
COIL HOLDER
DEGAUSSINGCOIL SOCKET
To CRT unit ground
PICTURE TUBEGROUND LEAD
-9-
Service Information
This TV set has a built-in power supply protection circuit.It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occursduring TV reception, the TV set goes to the stand-by mode.
When an abnormality occurs during TV reception, it causes pin 27 of the CPU to go continually Low (less than0.75V) for about one second. The CPU detects that this has occurred and outputs the signal from pin 31 to switchoff the power supply lines.
Releasing the protective circuit and restoring power supply
To release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again viaeither the main power switch or the ON-OFF button on the remote control. This will work only if the power supplytrouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and thecircuit will have to be repaired.
Protection Circuit
Mechanical DisassembliesCABINET BACK REMOVAL1. Refer to Figure 1, remove 10 screws.2. Pull off cabinet back and remove.
CHASSIS REMOVAL1. Remove cabinet back.2. Discharge the picture tube anode (2nd anode lead) to the dag
4. Remove chassis completely by sliding it straight back.
PICTURE TUBE REMOVALCAUTION: Do not disturb the deflection yoke or magnet
assembly on the picture tube neck. Care must be takento keep these assemblies intact, unless picture tube isbeing replaced . Discharge the picture tube to the coat-ing before handling the tube.
1. Remove chassis, referring to Chassis Removal instructions.2. Place cabinet’s front face down on the soft surface.3. Remove the screw on each corner of the picture tube and
GENTLY lift the picture tube out of the cabinet.4. Install a replacement picture tube in reverse order.
Properly install the degaussing coil and picture tube grounding lead on the picture tube. See Figure 2.
Note: If the Picture Tube is being replaced, mount theDegaussing Coil on the picture tube. See Figure 2.
Figure 2.Picture Tube Removal
ANT. 75
L
R
AUDIO
AV1 INPUT
VIDEO
(MONO)
S-VIDEO
MONITOROUT
Figure 1. Cabinet Back Removal
[1] Initializing Procedure1. Put a new memory IC.2. Turn on the TV set.3. Press and hold the TV/AV Selector on the TV set for more than 2 seconds. The following picture appears on the
screen.
4. Press the PROGRAMME UP on the TV set while the above On-Screen Display is still on the screen. The followingpicture appears on the screen.
This completes the initialization of memory IC.
Following shows the initialized contents of memory data by this procedure.- Plug & play : No executed- Inhibit data : Cancelled- Ch skip data : Cancelled- Sound volume data : 10/63 steps.- Volume Lock : OFF- Tuning Lock : OFF- Colour system : AUTO
1
CLR
-10-
Service Adjustments with Replacing Memory IC (IC802)
Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit. When the Memory IC(IC802) is replaced, some of the service adjustments should be readjusted to obtain the best performance. The necessary service adjustments are carried out by using the RC handset.Please set up the TV set with following steps [1] to [2].
Press and hold for more than 2 seconds
- + PMENUTV/AV
- + PMENUTV/AV
-11-
Service Adjustments with Replacing Memory IC (IC802)[2] Required Service AdjustmentsReadjust the following service adjustments.Adjustments Service Mode No. & ItemRF AGC Item 01, RF AGCHorizontal centre Item 02, H-PHAVertical size Item 04, V-SIZVertical-S correction Item 05, V-SCOVertical linearity Item 06, V-LINGray scale Item 14-17, 19-21
Further adjustment please refer to page 14 and 15.
Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments.Service mode adjustments table in CPU ROM
21 DRV White Balance Adj.22 B-YD 00~15 8 B-Y DC level Adj.. Colour compensation (PAL)23 R-YD 00~15 8 R-Y DC level Adj.. Colour compensation (PAL)24 B-YDN -16~+15 0 NTSC B-Y DC level Adj. (Difference value from PAL.)
25 R-YDN -16~+15 0 NTSC R-Y DC level Adj. (Difference value from PAL.)26 SBDC -16~+15 - 8 SECAM B-Y DC level Adj. (Difference value from PAL.)27 SRDC -16~+15 - 5 SECAM R-Y DC level Adj. (Difference value from PAL.)28 G-YA 0,1 0 G-Y angle Adj. (Colour Phase G-Y Demodulation 0=240 degree, 1=253 degree)29 RBGB 00~15 8 R-Y, B-Y Gain Blance Adj. (Do not change.)30 RBAG 00~15 8 R-Y, B-Y Angle Adj. (Do not change.) 31 G-YAN 0,1 0 NTSC G-Y Angle Adj. (Difference value from PAL.)32 RBGBN -16~+15 0 NTSC R-Y, B-Y Gain Balance Adj. (Difference value from PAL.)33 RBAGN -16~+15 0 NTSC G-Y, B-Y Angle Adj. (Difference value from PAL) 34 COGV 00~03 0 Coring Adj. (Base colour)35 BLKS 00~03 3 Black stretch effective point selection, 0=OFF, 1-3=FREE36 BLKG 00~03 3 Setting of Black stretch gain. 0=OFF, 1-3=FREE37 BRTA 0,1 0 On and off of ABL. 0=ON, 1=OFF38 BRST 0,1 0 ABL Effect Limit SW. 0=With Limitter, 1=Without Limitter
39 BRTH 00~07 0 ABL Threshold Pint.
(Do not change)
4041424344
White peak limitter. 0=OFF, 1-3=With LimitterWPL 00~03 2Y Gamma setting. 0=OFF, 3=Max (Do not change)YGAM 00~03 0Switching of Pre-shoot and Over shoot in AV mode. 0=Pre, 1=OverPORW 0,1 0Pre-shoot/Over shoot Adj. in AV mode.PORS 00~03 2
CDMRF 00~07 0 RF V-Countdown Circuit Adj. 50/60Hz Jage, Sync. Trigger 0=AUTO, 1=Ext. Trigger 69AFCAV 0,1 0 AV AFC Gain & Gate Adj. (AV for item 67)70VSUAV 0,1 0 AV V-Sync. Separation Adj. (AV for item 68)71CDMAV 00~07 0 AV V-Countdown Circuit Adj. (AV for item 69)72HLVDRF 0,1 1 Incorrect operation prevention at the time of a special signal (RF mode), 0=Fix, 1=Variable73HLVDAV 0,1 1 Incorrecr operation prevention at the time of a special signal (AV mode), 0=Fix, 1=Variable74VCO-SW 0,1 0 4.43Mhz Coring Adj. 0=for +, 1=for Minu75
AVNCON 00~127 64 Contrast Adj. of the blue back in AV mode. 78AVNBRI 00~127 64 Brightness Adj. of the blue back in AV mode.
0,1 1 SIF Trap Switch. 0=OFF, 1=ON00~255 136
79POMT 00~127 25 Picture Mute at the time of power ON.80CHMT 00~31 10 Picture Mute at the time of channel change.81SYST 00~15 5 Selection of the number of times of a Colour system judgment.82S-STE 0,1 1 AV Stereo/Mono Option. 0=Mono, 1=AV Stereo83VOLTBL 0~1 0 Volume Curve Table. 0=B-Curve, 1=C-Curve84MPP
BASS
0,10,1
1 Multi P-P Option. 0=Without Multi P-P 1=With Multi P-P
A-AGC 0~2
CPU Debug Date.
371 R71 0~255 0 CPU Debug Date.372 R72 0~255 0 CPU Debug Date.
304 R04 0~255CPU Debug Date.303 R03 0~255
CPU Debug Date.
SUB-BT 0~20 AGC Setting of AUDIO IC. 0=OFF, 1=ON(540mV), 2=ON(300mV)
Notes: The initial value that the CPU writes down the CPU ROM data to the memory when replaced the memory IC.TV set may not operate correctly with this initial value. It is required to set up the fine adjustment for service adjustments described in the above.
-13-
Service Adjustments with Replacing Memory IC(IC802)
TIMER
P
P
ADDRESSDRV
SI. 00100101S2.11111000DATA
B 6421 R 64ADDRESS
V-SCO
SI. 00100101S2.11111000DATA
905
ADDRESSRF AGC
SI. 00100101S2.11111000DATA
3001
[Entering to Service Mode]
1. Press and hold the MENU button on the Remote Control and press the VOLUME (+) button on the TV set.Following setting items appears on the screen.
Display for [V-SCO] V-S Correction adjustment
Read Status
Item No. Item Data value
Display for [RF AGC] RF AGC adjustment
Read Status
Item No. Item Data value
Data value for Red
Display for [DRV] White balance adjustment
Read Status
Item No. Item
Data value for Blue
To return to normal TV mode, press the MENU button on the TV set or the remote control handset.
2. Select item by pressing the TIMER (Item No. UP) or SOUND MUTE (Item No. DOWN) button on the remote controlhandset.
3. Adjust data value by pressing the VOLUME + or VOLUME - button on the remote control handset.
Example
MENU
MENU
0102030405......90... ...9089888786......01
- + PMENUTV/AV
-14-
Service Mode Adjustments
Vertical size
Following adjustments should be carried out when the memory IC is replaced. How to enter the service mode andadjust values, please refer to “ Entering to Service mode” on page 13.
NOTE: Do not attempt this adjustment with weak signal.(1) Tune the receiver to most clearest (or strongest) VHF
station in your area. Set the brightness and contrastcontrols to maximum. Set the colour control to minimum.
(2) Select [RF AGC] in the service mode.(3) Change value until the snow noise just disappears.(4) Exit from service mode.
Item 01 [RF AGC] AGC
(1) Receive a monochrome circular pattern.(2) Set the brightness and contrast to normal.(3) Select [H-PHA] in the service mode.(4) Change value to be optimum horizontal centre position.(5) Exit from service mode.
Item 02 [H-PHA] HORIZONTAL CENTRE
Horizontal centre
(1) Receive a monochrome circular pattern.(2) Set the brightness and contrast to maximum.(3) Select [V-SIZ] in the service mode.(4) Change value to be optimum vertical size.(5) Exit from service mode.
Item 04 [V-SIZ] VERTICAL SIZE
(1) Receive a crosshatch pattern.(2) Set the lever of SW501 (Vertical Center SW) as the
position of a center.(3) Select a picture mode of NATURAL by pressing the
PICTURE MODE button.(4) Select [V-SCO] in the service mode.(5) Adjust Vertical S-letter Correction so that the difference
of “c”, “d” and “e” becomes less than 2 mm by pressingthe VOLUME + or - button.
(6) Confirm Vertical Linearity and adjust Vertical Center then Vertical Size.
(7) Exit from service mode.
Item 05 [V-SCO] V-S CORRECTION
c Upper
Center
Bottom
d
e
(1) Receive a crosshatch pattern.(2) Set the lever of SW501 (Vertical Center SW) as the
position of a center.(3) Select a picture mode of NATURAL by pressing the
PICTURE MODE button.(4) Select [V-LIN] in the service mode.(5) Adjust Vertical Linearity so that the difference of “a” and
“b” becomes less than 3mm by pressing VOLUME + or- button.
(6) Exit from service mode.
Item 06 [V-LIN] VERTICAL LINEARITY
a
b
Upper
Center
Bottom
-15-
1
C515
R487KQ
T471-H5
T471-H1
KDY-1
JP409
JP407
JP403
JP405
C527
C514
R488
J410
R477A
C486
R492
C491
D485
R475
R485
D4
R484
C420C420-H3
D438 KDY
R441
JP411
R477
JP408
JP404
T471-H2
J216
C471
JW24
R483
R481R481A
T471-H7T471-H11
T471-H6T471-H4
T471-H8
T471-H10
T471FBT.
T471A
JP483
L442
R442
FC3A CHASSIS
(1) Receive the monochrome circular pattern.(2) Set the brightness and colour to normal, contrast to maximum.(3) Enter to the service mode.(4) Set each value of Item-14 RBIAS, 15 GBIAS, 16 BBIAS, 17 RDRIV and 19 BDRIV mode to 64.(5) Select Item-20 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible
one coloured line.(6) Press the 1 (Red Bias -), 2 (Red Bias +), 5 (Green Bias -), 6 (Green Bias +), 9 (Blue Bias -) or 0 (Blue Bias +)
button to adjust the brightness of each colour until a dim white line produced. Please see the control button alloca-tions in this mode.
(7) Select Item-21 DRV mode to enter the white balance adjusting mode.(8) Press the 3 (Red Drive -), 4 (Red Drive +), -/-- (Blue Drive -) or RECALL (Blue Drive +) button alternately to
produce normal black and white picture.(9) Exit from the service mode.(10) Check for proper grey scale tracking at all brightness levels.
NOTE: If the grey scale adjustment is made after picture tube replacement, check the high voltage.
Items 14-17, 19-21 GREY SCALE
Service Mode Adjustments
MAIN BOARD
SCREEN VR(Under side)
0
7
1 4
85
2 3
6
9
P
P
JXMYA
-/--
P P
TV/AV
A B
CH SCAN
TIMER
MENU PIC MODE
SWAP
BASS SURROUND
Red Bias -
Red Bias +
Green Bias -
Blue Bias +
Red Drive +
Blue Drive -
Blue Drive +Green Bias +
Blue Bias -
Red Drive -
Press the MENUbutton to exitfrom servicemode.
E
JP463
VR463
Q461Q461A
Q461-H2
Q461-H1
JW15
C524
C521
VR462
R518
C515
C437
J2
R502
C487
J414
J515
J516
JP412
IC501-H3
IC501-H2
T471-H5
J406
T471-H1
KDY-6KDY-3KDY-1
JP409
JP405
J1504
J4
Q540R540
C540
D642
J503
JWW
1
JW1
R473
D465
R467
D462 C467
R469
D466
R464
D421
R426
C470
J1501
D512
J501
R512
C527
R519
R515
R522
SW501
R501
R525
R516
C514
C468
C464
R463
R465
R462
D469
J029
R488
R492
C491
D485
C423-H2 C423-H3
C423
C423-H1C420-H1
C420C420-H3
C420-H2
22
L431
D438
C441-H2
C441-H3
C441
3
R435
R423
12
KDY
C441-H1
R441
D461
R466
3
R461 C463
JP408
JP404
T471-H2
R481A
T471-H7T471-H11
T471-H6T471-H4
T471-H8
T471-H10
T471FBT.
J026
J209
JP1502
J405
Q432
IC501
J504
L442-H1L442-H2
L442
L441-H2
L441-H1
L441-H3L441
D441
R442
JP436
C423A
H-SIZE
PCC
J540
JW36
R514
VERT.OUT
V-CENTER
1
JW15
4
R518
5
R487KQ
IC501-H3
01-H2IC501-H1
T471-H5
JP409
JP407
JP403
JP405
D512
J501
J502
R512
C518
C527
R519
C520
R515
R522
C510
C517
R516
C514
R511R510
J028
J029
D476
R488
J410
R477A
C486
R492
C491
D485
R475
R485
R474
C449
D468
D467
D448
C469
D486
R486
R484
R477
JP408
JP404
J216
C471
JW24
R483
R481R481A
T471-H7T471-H11
T471-H6
T471-H8
T471-H10
T471A
IC501
IC501A
JP483
J504
FC3A CHASSIS
VERT.OUT
E
E
E
E
9
10
9
10
E
JW17
JW16
C425AC424A
Q613-H4
C651-H1C651-H2
C655
D651
T611-H16
C465
R672
D671
R671
J607Q
J605
VR651
R662
R661
D661
R663
R664
J611
R657
Q681
R655
R652
665
J604
J413
R434
C432
T43
C434
R431 Q431
R433
C425C424L432
D439
T43
L652
L651
C651
D652
C652
R644
R643 R631
R628
R624
R623R622
Q612
Q611 L615
D617
D616
C644
C613
L616L613
C615
D611
C618A
C617
C616L611
L612
R629
T611CONVERTER TRANS.
T611-H8
T611-H7
T611-H6
T611-H5
T611-H3
T611-H17
T611-H13
T611-H12
T611-H11
C629
J82
J82
J82
Q613-H2
OUT
Q613A
R445
L462-H3
L462
L462-H2
Q652
J612
C618
+BTP-B
!
-16-
Service Adjustments
(1) Connect a DC meter to TP-B and the ground.(2) Tune the receiver to an active channel and synchro-
nized picture. Select NATURAL picture mode by press-ing the PICTURE MODE button on the remote control.
(3) Adjust B-voltage to become 140 ± 1V DC by usingVR651.
B-VOLTAGE SUPPLY CHECKING
Note: +B (+140V) Voltage Check and Grayscale Adjustmentmust be completed before attempting High Voltage Check.
(1) Connect high voltage voltmeter negative lead to ground, and connect + lead to anode of picture tube.
(2) Tune receiver to an active channel and confirm TV is operating properly.
(3) Maximize the beam current by adjusting the contrast and brightness controls to maximum. Confirm high voltage is within 28 KV and 30 KV at maximum beam current.
(4) Eliminate the beam current by adjusting the contrast and brightness controls to minimum. Confirm high voltage does not exceed 32 KV at zero beam current.
If reading is not within range, check horizontal circuit.
No high-voltage adjustment is provided on this chassis.
HIGH VOLTAGE CHECK
(1) Receive a monochrome circular pattern.(2) Set the brightness to normal and contrast to maximum.(3) Adjust the focus control on the F.B.T. for the best focus
on the screen centre.
FOCUS ADJUSTMENT
TP-B
Focus VR (Upper size)
MAIN BOARD
(1) Receive a monochrome circular pattern.(2) Set the brightness and contrast to maximum.(3) Adjust the vertical centre of the picture with SW501.
VERTICAL CENTRE
Vertical centre
SW501
VR651
(1) Receive a monochrome circular pattern.(2) Set the brightness and contrast to maximum.(3) If the picture is too wide, or narrow, adjust horizontal
width control (VR462) for proper width.(4) Select several other channels and check horizontal
width.
HORIZ. WIDTH ADJUSTMENT
VR462
1
E
E
JW15
C524
C521
R518
C515
R487KQ
J024
J515
J516
IC501-H3
IC501-H2IC501-H1
-H1
KDY-6KDY-3KDY-1
L1501
J018
D1032
JP409
JP407
JP405
J1504
J409
J1205
J1206
J1204
J1207
J1208
Q540R540
J1501
D512
J501
J502
R512
C518
C527
R519
C520
R515
R522
SW501
R501
C510
C517
D501
R525
R516
C514
R511R510
J028
J029
D476
R488
J410
R477A
C486
R492
C491
D485
R475
R485
R474
C449
D468
D467
D448
C469
D486
R486
R484
JP408
JP404
C471
JW24
R483
R481R481A
T471-H10
1.
1230
J120330
J021D1402
D1401
C1082
Q1402J025
IC1401VIDEO SW
J026
J209
C1401
JP1502
K1004
IC501
IC501A
JP483
J504
JP501JW
31
FC3A CHASSIS
JW36
VERT.OUT
(SOLDER
SIDE)
IC1501VIDEO
SW
V-CENTER
-17-
Special Function
Once TUNING LOCK is switched on, further channel tuning(Pre-set) is not possible. The Channel Swapping function alsois not possible.
(2) Tuning Lock setting
The following special functions can be set up on this TVset.
With this function, a maximum sound volume limit can be set atany level.
(3) Music Mode setting
When Music Mode is ON, Programme position from “91” to “99”and “0” are set Music Mode. Only sound is provided and anypicture is not on the screen under Music Mode.
Set AV-START to ON and every time the TV set is switched on,AV1 position will be the initial programme position.
(4) AV Start setting
TUNING LOCKED
AV1
MUSICTurns blackscreen
SOUND BASS ON 18
(1) Volume Lock setting
(5) Language selection for the on screen display
Either Thai or English can be selected as the language of thescreen display.
1To enter into the special function setting mode, press and hold the MENU button of the remote control, then press thePROGRAMME DOWN button on the TV set.
2 Select an item of the special functions by pressing the PROGRAMME UP or DOWN button on the remote control or the TV set.
3 Set the selected special function “ ON “ by pressing the VOLUME + or - button. To cancel, set to “ OFF”.
How to set the special function:
Note: When making the VOLUME LOCK setting, set thedesired maximum sound volume by pressing the VOLUME + or- button before entering Special Function setting mode.
4 Press the MENU button of the remote control to return to the normal TV mode.
P
P
P
P
MENU
OFFOFFOFFOFF
TUNING LOCK
AV START
VOLUME LOCK
MUSIC MODE
SELECT ADJUST M EXIT
OFFONOFFOFF
TUNING LOCK
AV START
VOLUME LOCK
MUSIC MODE
SELECT ADJUST M EXIT
LANG / ENGLISH
To select language:1) Select LANG/ by pressing the PRGRAMME UP or
DOWN button.2) Select either Thai or English by pressing the VOLUME + or
- button.
LANG / ENGLISH
TUNING LOCK
AV START
VOLUME LOCK
MUSIC MODE
OFFOFFOFFOFF
SELECT ADJUST M EXIT
LANG / ENGLISH
MENU
- + PMENUTV/AV
-18-
Purity and Convergence Adjustment
Signals: Use a pattern generator which can output red, green, blue and white raster and crosshatch pattern signals.
Procedure: Carry out purity adjustment first, and then carryout convergence adjustment.
Preparation: The deflection yoke may have several correction magnets attached to its outer edge. If replacing the picture tube, the positions of the magnets can be changed andthey can be re-used, so remove these magnets and keep them safely so that they do not get lost.
PURITY ADJUSTMENTS1. Place the picture so that its front faces west.2. Insert the power plug into a wall outlet, and then turn on
the power for the TV and de-magnetize the TV using itsown degaussing circuit.
3. Loosen the screw which is holding the deflection yoke(with integrated purity magnets), and them move thedeflection yoke forward as far as it will go. Remove therubber wedge at this time.
4. Turn off the red and blue raster so that only the greenraster is on.
5. Adjust the angle between the tabs (wings) on puritymagnets to center the vertical green belt in the picturetube screen. (See Figures 2 and 3.)
NOTE: This adjustment can only be carried out by changing the angle, not by rotating the tabs up anddown.
6. Gently move the deflection yoke back to the positionwhere the green band fills the whole of the picture tubescreen, and then tighten the screw to secure the deflection yoke in place.
7. If there is any color distortion around the edges, correctit by attaching magnets to the outer edge of the deflection yoke. The magnets should be attached sothat the line running from the position of the distortion tothe center of the picture tube intersects the deflectionyoke. The colors on the magnets indicate the north andsouth poles of the magnets. Attach the magnets inwhichever direction causes the distortion to disappear.(See Figures 1 and 4. The south and northpole positions are shown as a guide.)
8. Switch the screen to red and blue rasters and check thatthere is no color distortion. If there is any distortion,adjust the angles of purity magnets tabs or the forward-back position of the deflection yoke, or change the attachment positions of the correction magnets.
CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustmentshould be made only after picture tube or deflection yoke replacement, following the steps below:
Deflection yokemounting scrrew
Rubber wedge
Correction magnet
Move the deflection yoke back and forth to adjust the purity
GREEN band
Magnet attachment position
Deflection Yoke outer edge
Color distortion
Figure 1
Figure 2
Figure 3
Figure 4
N
S
12 3 4
SIX-POLEMAGNET TABS
FOUR-POLEMAGNET TABS
ANGLEOF TABS
PURITYMAGNETTABS
Change the angle to adjust the green band so that it iscentered in the screen.
Purity and Convergence Adjustment
-19-
CONVERGENCE ADJUSTMENTPreparation: After carrying out purity adjustment and
before proceeding to convergence adjustment, provisionally insert the rubber wedge so that there is no vertical or sideways play in the deflection yoke.
Signals: Display a crosshatch pattern.
1. Red/blue center adjustmentAdjust the angle between the tabs (1) and (2) in Figure5 and rotate them together until the lines of the red andblue crosshatch patterns (vertical and horizontal lines)are superimposed in the center of the screen.
2. Green and red/blue center adjustmentAdjust the angle between the tabs (3) and (4) in Figure5 and rotate them together until the lines of the greencrosshatch pattern are superimposed with the red/bluecrosshatch pattern (vertical and horizontal lines) whichwere superimposed in step 1).
3. Vertical lines at screen center (Red and Blue)Use the VR2 control (see Figure 8) at the top of thedeflection yoke to correct the vertical line convergenceat the center of the screen.(See Figure 9.)
4. Vertical lines at screen top and bottomUse the VR1 control (see Figure 8) at the top of thedeflection yoke to correct the vertical line convergenceat the top and bottom of the screen. (See Figure 10.)
5. Horizontal lines at screen top and bottomRotate the Deflection yoke to the left or right to correctthe horizontal line convergence at the top and bottom ofthe screen. (See Figure 11.)If vertical lines are intersecting at the top and bottom,use a screwdriver to adjust the Balance coil at the top ofthe deflection yoke. (See Figure 12.)
Red
Blue
Figure 6
Red/Blue
Green
Figure 7
Red Blue
Figure 9
Figure 5
Adjust the angle rotation of tabs(1) and (2) to align the verticaland horizontal lines.
Adjust the angle and rotation oftabs (3) and (4) to align the verticaland horizontal lines.
Use the VR2 control to correct.
RedBlu
e
Figure 10
Use the VR1 control to correct.
BlueRed
Figure 11
Rotate the DY to correct.
BlueRed
Figure 12
Use the Balance coil to correct
12 3 4
SIX-POLEMAGNET TABS
FOUR-POLEMAGNET TABS
ANGLEOF TABS
PURITYMAGNETTABS
Balancecoil
VR1
VR2
Figure 8
ANT. 75
L
R
AUDIO
AV1 INPUT
VIDEO
(MONO)
S-VIDEO
MONITOROUT
- + PMENUTV/AV
-20-
Cabinet Parts List C2SW
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
Chassis Electrical Parts List (Service Ref. No.CP29AF2X-00 & CP29AF2X-10)
Ref. No. Part No. Description Ref. No. Part No. Description
Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value havespecial significance to product safety. It is particularly recommended that only parts specified on the following partslist be used for components replacement pointed out by the mark.
!
Note: Parts order must contain Service Ref. No., Part No., and descriptions. The main PCB unit will be supplied without tuner andflyback transformer. They should be ordered separately.
Read description in the Capacitor and Resistor as follows:
CAPACITORCERAMIC 100P K 50V
Rated Voltage
Tolerance Symbols:Less than 10pFA : Not specified B : ±0.1pF C : ±0.25pFD : ±0.5pF F : ±1PF G : ±2pFR : ±0.25-0pF S : ±0-0.25pF E : +0-1pFMore than 10pFA : Not specified B : ±0.1% C : ±0.25%D : ±0.5% F : ±1% G : ±2%H : ±3% J : ±5% K : ±10%L : ±15% M : ±20% N : ±30%P : +100-0% Q : +30-10% T : +50-10%U : +75-10% V : +20-10% W : +100-10%X : +40-20% Y : +150-10% Z : +80-20%
Material:CARBON........... CarbonMT-FILM............ Metal FilmOXIDE-MT......... Oxide Metal FilmSOLID................ CompositionMT-GLAZE......... Metal GlazeWIRE WOUND...Wire WoundCERAMIC RES.. CeramicFUSIBLE RES....Fusible
GND POWER AND GND PRE AMP SHOULD BE SEPARATEDNOTE:
HEA00****
FM OUT
L INR IN
GREEN
RED
FM OUT
TV/AV
L IN
R IN
11.IF
9.TB
7.PB
6.M
B
5.DA
TA
4.CL
OCK
3.G
ND
1.AG
C
H-OUT
16EM330
2400030
2400030
X
2400030
XX
1SS355
J10AM050N
XX
2SJ470
X
250KK1000XH:250KM1000XN:400KK1000X
X
RU4YXLF-L1:FE301-1L43
ERC91-02LX
X
2400030
2400030 2400030
2400030
1SJ1K
X
X
X
X
X
X
F6014A250VTW
X
J30B0250N:J30B1380N
1SJ560
X
2400010
2400010
2400010
L7201B:L2G31R0MN
AE
1K
EM47
X
X
2400030
2400030
X
X
250GM0.068X(D:E):250GM0.068XBJ:275GM0.068XB
250GM0.1X(BJ:D:E):275GM0.1XB
X
1SS355
1000KK1500CRD
X
1000KK680(CTB:NH)
X
2400010
J30B0250N:J30B1380N
L14B1830N:L14B1870N
2SB985(S:T):2SA1707(S:T)
X
J
J
X
J
X
2400010
J
J
2400010
J
1SS133
X
J
AA0007 1SJ1K
2400010
2400030
2400030
2400010
X
X
X X
400EM270XM
2400010
2400010
X
X
X
XX
X
EM0.47
7WK8.2I
X
X
J
J12B3580N2400010
2400010
2SB985(S:T):
2SA1707(S:T)
X
X
1500MH7200(AN:XK)
J
X
X
24000102400010
X
2400010
2400010
J10EA040N:J10KR040N
160EM4.7CY
220K
2SJ1K
82K1SS355
J10EA040N:J10KR040N
XX
X
FJ1.2KP
1/2FJ10
35EM2200
L26A00200
X
X
AA
AA
AA
AA
XX
XJ
J
J
10K
DJ 10K
250EM22(CY:BE)
R R
R
J10EA040NXX
2000KP1000AHE:2000KZ1000 (CB:HE)
TDA6103Q/N3
2SJ1
00K
2SJ1
00K
1.8K
1.8K1.8K
2SJ100K
X
1/2DJ1.5K
DJ47
DJ1K
R 16EM47CD
HJ0.1(:G)
DJ220K
DJ2.2K
HJ0.22(:G)
1/2DJ1.5K
1/2DJ1.5K
1/2DJ1.5K
J11B2570N
X
X
X
J10EA050N
AC
1.2K
1.2K
1.2K
X
X J30B0250N:J30B1380N
X
CJ33C
CJ33C
CJ22C
B10S0110B
W10B08400:W10B08401
L81B31600
L70B16501
A10B00400:A10B25500
A10B00400:A10B25500
FOCU
S
SCRE
EN
HV
BXXAVA009KIK-
1
1
13
1
2
3
4
5
6
7
8 9
10
11
12
14
15
16
3
2
8
7
6
5
17
15
11
14
12
13
16
1
23
4
1 2 3
3
2
8
7
6
5
17
15
11
14
12
13
16
64
10
11
5 3
2
1
64
7
10
5 3
2
1
7 6 5 4 3 2 1
16
15
14
13
12
11
10
98
7
6
5
4
3
2
1
987654321
1 2 3 4 5 6 7 8
910111213141516
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
321
1 2 3 4 5 6 7 8 9 10 11 12
1
2
3
4 5
6
7
8 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
16
15
14
13
12
11
10
9 8
7
6
5
4
3
2
1
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
2827
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
1
3
4
1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1
11
1 1
1
1
1
11
1
2
3
4
5
6
7
8
9
275910
6
8
11
1
9V
9V
9V
B1140V
9V
B228V
5VRC
24V
B1140V
5V-1
24V
B1140V
24V
9V
9V
9V
9V
B228V
P.F
5VRC
5VRC
5VRC
24V
5V-1
9V
9V
B1140V
5V-1
9V
5V-1
5V-1
9V
5V-1
5V-1
5VRC
P.F
5V-1
9V
AT1
CPU
AUDIO AMP.
L/R, L/L, R/RSW
IF/VIDEO/CHROMA
AUDI
O S
W
VIDEO SW
VIDEO SW
COLOUR TELEVISION
CHASSISSERIES
SERVICE REF. NO.
FFFFCCCC3333----AAAA
PRODUCT SAFETY NOTICE:
Product safety should be considered when acomponent replacement is made in any areaof a receiver.
Components indicated by a mark in thiscircuit diagram show components whose values have special significance to productsafety. It is particularly recommended that onlyparts specified on the part service manual beused for components replacement pointed outby the mark.
CIRCUIT DIAGRAM NOTICE:1. All resistance value are in ohms, K=1,000, M=1,000,000.2. All resistance rated wattages are 1/6W unless otherwise noted.3. Excepting electrolytic capacitors, all capacitance values of less than 1
are expressed in µ F and more than 1 are pF.4. All capacitance rated voltages are 50V unless otherwise noted.5. All inductance values are in µ H.6. Voltage readings take with a "VTVM" are from point indicated chassis
ground. Voltage readings taken by using PAL colour bar signal are with all controls at normal position. Some voltage may vary with signalstrength.
7. Waveform were taken with PAL colour bar and controls adjusted for normal picture. Waveforms were taken by using a wide band oscillo-scope and a low capacity probe.
8. This circuit diagram covers a basic or representative chassis only. There may be some components or partial circuit differences between theactual chassis and the circuit diagram.
9. Parts specified with "X" are not installed in this model.10. Parts specified with "J" are just jumper wires.
THE SERVICE PRECAUTION:The area enclosed by this line( ) is directly connected with AC mains voltage.When servicing the area, connect an isolating transformer between TV receiver and ACline to eliminate hazard of electric shock.
11. Expression of capacitance and resistance in circuit diagrme.
C2SW/C2SWZ
TRANSISTOR, DIODE AND INTEGRATED CIRCUIT TERMINAL GUIDEC: COLLECTORB: BASEE: EMITTER
A: ANODEK: KATHODE
B
B
C
C
E
E
C EB C E
B
B
C
E
AK
K
A
A
K
FUSIBLERESISTOR
PARTICULARPARTS SYMBOL
1
1
1
N/2
N/2 + 1
N NON POLEELECTRICCAPACITOR
POSISTER
C
EB
CHIP COMPONENTS
K
A
TRANSISTOR
DIODE
123
RESISTOR
12 X 103=12K
Capacitance (Example)1000 C M 2000 D
CharacteristicCapacitance value (220pF)Allowable error (±20%)Kind (Ceramic)Rated voltage (1,000V)
J= ± 5%K= ±10% M= ±20%
Resistance (Example)1/2 N J 1.2
Resistance value (1.2Ω)Allowable error (±5%)Kind (M.carbon)Rated wattage (1/2W)