Specifications Power Source . . . . . . . . . AC220V, 50Hz / 60Hz Receiving System . . . . . . PAL (N/N, M/M), NTSC (M/M) Channel Coverage Antenna mode VHF: 02-13, UHF: 14-69 CATV mode VHF band: 01-13, Mid band: 14-22 Super band: 23-36, Hyper band: 37-94 Ultra band: 100-125 Low mid band: 01 and 95-99 Video IF . . . . . . . . . . . . . 45.75MHz Sound IF . . . . . . . . . . . .41.25MHz Aerial Input Impedance . .75Ω Ext. Terminals Video inputs: Phono jack ✕ 2(1Vp - p, 75Ω29 S-Video terminal (DIN 4 pin, separate Y/C signal input) ✕ 1 Audio inputs: Phono jack (R/L) ✕ 2 (436mVrms, more than 40KΩ29 Video monitor outputs: Phono jack ✕ 1(1Vp - p, 75Ω29 Audio monitor outputs: Phono jack (R/L) ✕ 1 (436mVrms, less than 600Ω29 Variable Audio Output: Phono jack (R/L) ✕ 1 (less than 1 KΩ) Sound Output (RMS) . . .5W + 5W Dimensions . . . . . . . . . . 768(W) ✕ 617.5(H) ✕ 487(D)mm Weight . . . . . . . . . . . . . . approx. 35.7Kg Specifications subject to change without notice. Product Code: 1 113 338 00 Original Version Chassis Series: LB1-A F5BA/F5BAS 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. VIDEO POWER DISPLAY CH-RECALL 1 2 3 4 5 6 7 8 9 0 CH VOL VOL IMAGE MENU MUTE SLEEP CH JXVD SERVICE MANUAL Colour Television FILE NO. Model No. 29-F5BA Service Ref. No. 29-F5BA-00 29-F5BA-01 (Argentina)
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Video inputs: Phono jack 2(1Vp - p, 75Ω)S-Video terminal (DIN 4 pin, separate Y/C signal input) 1
Audio inputs: Phono jack (R/L) 2 (436mVrms, more than 40KΩ)Video monitor outputs: Phono jack 1(1Vp - p, 75Ω)Audio monitor outputs: Phono jack (R/L) 1 (436mVrms, less than 600Ω)Variable Audio Output: Phono jack (R/L) 1 (less than 1 KΩ)
Give complete “SERVICE REF. NO.” for partsorder or servicing. It is shown on the rating plateat the cabinet back of the unit.
This T.V. receiver will not work properly inforeign countries where the televisiontransmission system and power source dif-fer from the design specifications. Refer tothe specification table.
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 .
Chassis Block Diagrams (Main Signal Processing Circuit)
-3-
IC80
2M
EM
OR
Y BU
S S
DA
BU
S S
CL
5 6
2 3
IC80
1C
PU
23 24 27 28 29
A10
1T
UN
ER
IC20
1IF
/VID
EO
/CH
RO
MA
SIF
F
ILT
ER
4.5M
Hz
32
818 11947/4
835 34 33
1413
31 30 2910
5125 16
R (
OS
D)
G (
OS
D)
B (
OS
D)
SO
UN
D
CA
RR
IER
TR
AP
4.5M
Hz
AN
ALO
GU
E-B
US
DA
TA
AN
ALO
GU
E-B
US
AD
DR
ES
S
SIF
IN
IF IN
VID
EO
OU
T(W
ITH
SIF
CA
RR
IER
)
INT
. VID
EO
IN
B INR IN
G IN
S-CHROMA IN
7 31
IC11
01A
V S
W
AV2 VIDEO
AV1 VIDEO
IC00
1A
UD
IOA
MP
. 8 10
5 1
3740 4125 26
39 3823227 36
AUDIO OUT
SP
901
SP
902
R-O
UT
L-O
UT
L
RV
AR
IAB
LEA
UD
IO O
UT
(RE
AR
)
L
R
VM
ON
ITO
R O
UT
(RE
AR
)
IC34
01M
TS
DE
CO
DE
R
R-O
UT
L-O
UT
SD
A
SC
L
V
L
R
AV
2 IN
PU
T(F
RO
NT
)
V
L
R
AV
1 IN
PU
T(R
EA
R)
S-CHROMA
Y
S-T
ER
MIN
AL
PO
WE
RS
UP
PLY
CIR
CU
ITA
C
IC65
1R
EG
.
5V1
3
15V
9V
30V
(A
UD
IO) 13
0V
(MA
IN H
IGH
)
24V
(V
ER
T.)
T61
1C
ON
VE
RT
ER
TR
AN
S.
IIC B
US
R-Y -YB-Y
G-Y
R O
UT
B O
UT
G O
UT
Q70
5
Q70
1
Q70
3Q
901
CR
T
IC50
1V
ER
T. O
UT
Q43
1Q
432
FO
CU
S
SC
RE
EN
T45
1F
BT
DY
20V
ER
T. D
RIV
E12
2
VE
RT
. DY
HO
RIZ
. DY
HO
RIZ
.D
RIV
E
VID
EO
MO
NIT
OR
OU
T
H.V
.
EX
T. V
IDE
O IN
HO
RIZ
.D
RIV
EH
OR
IZ.
OU
T
X16
1
SA
W F
ILT
ER
3936 37 3873 1 5
R-Y
B-Y
R-Y
B-Y
IC27
11H
DE
LAY
-4-
IC80
1C
PU
32O
N-T
IME
R L
ED
DR
IVE
2 3
IC80
2M
EM
OR
Y
7 8
X'T
AL
SW
-1
X'T
AL
SW
-2T
O IC
201
PO
WE
R O
N/O
FF
1 10 11
X'T
AL
OS
C fo
rC
PU
13A
FT
SIG
NA
L IN
15K
EY
SC
AN
INK
EY
SW
ITC
HE
S
16O
PT
ION
SW
IN
17R
ES
ET
IN
18 19
OS
C fo
rO
SD
23A
NA
LOG
UE
BU
S D
AT
A
24A
NA
LOG
UE
BU
S A
DD
RE
SS
TO
IC20
1
25 26
V-P
ULS
E IN
H-P
ULS
E IN
Q81
6Q
815
Q81
7
PO
WE
RS
UP
PL
YC
IRC
UIT
D10
03
Q68
1
24V
Q66
1
9V
D68
3
41P
OW
ER
FA
ILU
RE
DE
TE
CT
ION
VE
RT
ICA
LD
EF
LEC
TIO
N
FLY
BA
CK
TR
AN
S.
D48
3D
500
PO
WE
R F
AIL
UR
E
Q69
1
A10
1T
UN
ER
IC20
1IF
/VID
EO
/C
HR
OM
A
IC34
01M
TS
D
EC
OD
ER
IC00
1A
UD
IP
AM
P.
52P
LL E
NA
BLE
OU
T(E
NA
BLE
=H
IGH
)
5P
LL C
LOC
K O
UT
6P
LL D
AT
A O
UT
IF IN
51C
AP
TIO
N E
NA
BLE
(E
NA
BLE
=LO
W)
49P
IP E
NA
BLE
(E
NA
BLE
=LO
W)
48C
AP
TIO
N O
PT
ION
(C
AP
TIO
N=
LOW
)
47P
IP O
PT
ION
(P
IP=
LOW
)
46IF
IDE
NT
IN (
NO
SIG
NA
L=LO
W)
44R
C S
IGN
AL
IN (
AC
TIV
E=
LOW
)
43C
OLO
R K
ILLE
R IN
(C
OLO
R ID
=H
IGH
)
42S
YN
C. I
D IN
(N
O S
YN
C.=
HIG
H)
45
AC
SW
ITC
H O
PT
ION
(M
EC
HA
.SW
=LO
W, S
OF
T S
W=
HIG
H))
40T
V/A
V S
W O
UT
(T
V=
LOW
)
39A
V1/
AV
2 S
W O
UT
(A
V1=
HIG
HT
)
35R
ELA
Y O
N/O
FF
FO
R D
EG
AU
SS
ING
CO
IL O
UT
34S
OU
ND
MU
TE
OU
T (
MU
TE
=H
IGH
)
30B
LAN
KIN
G O
UT
29O
SD
B-O
UT
28O
SD
G-O
UT
27O
SD
R-O
UT
AU
DIO A
UD
IO
Chassis Block Diagrams (System Control)
IC Block Diagrams
-5-
LA7687N < IF/Video/chroma/Def. > IC201
APCD
ET
LIMAM
P
FMDET
IDEN
TIN
T/EXT
RF
AGC
AGAGC
DEF C
OIN
BUZZ
CAN
CEL
VIDEO
DET
VCO
AFT
VIDEO
AMP
AV-SWSEC
AM
VIFAM
P
ACC
KILLER
S-SW
V-SW
C-BPF
SWITC
H
1STBPA
APC
VCO2N
DBPA
TINT
FILTERAD
JUST
C-TR
APD
ELAY
APA-CO
N(YN
R)
IDEN
TX-TAL
IDEN
TD
ET F/FPALSW
MEM
OR
B OU
T
ADD
LPF ALC
CO
NT-
RASTV/C
BUS
OSD
SWITC
H
RB AM
PG
-Y MATR
IX
BRIG
HT
CLAM
P
SYNC
SEP
VERSYNC SEP
VERC
/D IDEN
TD
ET
H & V
BLANK
OSD
AFC 1
HO
RC
/D
HO
RO
SC
CLO
CK
OU
T
AFC 2
PHASE
SHIFTER
F.B.P.D
ET
HO
RD
RIVER
LA7687
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
3736
3534
3332
3130
2928
2743
4241
4039
3845
4451
5049
4847
4652
AV-SW/SECAM
ID OUT
AFT OUT
ACL
S-SW
S-CHROMA
EXT-VIDEO
VCC 5V
KILLER
BUS 1
BUS 2
V-OUT
50/60Hz
H-VCC
FBP
SC
COIN
BLK-IN
B-IN
G-IN
R-IN
-Y OUT
B-Y OUT
G-Y OUT
R-Y OUT
V/C VCC
CC
D 1H
DL
L-SECAM
A-OUT
RF AGC
VIF INSAW
IF AGC
IF GN
D
GND
4.5MHz
5.5MHz
3.58MHz
4.43MHz
R-Y OUT
B-Y OUT
R-Y IN
B-Y IN
ABL
VIDEO OUT
SOUND TRAP
9.5MHz
IC Block Diagrams
-6-
LC89950 < IH DL > IC271
LC89950
CLAMP
AUTO-BIAS
AUTO-BIAS
CLAMP
BGP
BGP
CCD254.5bit
ø1 ø2
CCD254.5bit
ø1 ø2
4MHz OUT
DUTY COMPENSATION
CLOCK DRIVER
TIMINGGENERATOR
VCO 256 DIVIDERPHASECOMPARATOR
PULSE SHAPER
BGPDETECTOR
BGP
OUTPUTS&G, AMP
LEVELINCREASER
OUTPUTS&G, AMP
B-YIN
Vdd
R-YIN
4MHzOUT
COMP
VCO IN PC OUT
Vdd
BGP IN
R-Y OUT
RD
B-Y OUT
Vss
5
6
7
8
9
10 11
12
13
1
2
3
4
Vss14
LA7838 < V-OUTPUT > IC501
VERT.TRIGGERINPUT
ONE SHOTMULTI
RAMP GENERATOR
V-SIZECONTROL SWITCH
DRIVE
THERMALPROTECTION
OUTPUT
PUMP UP
1 2 3 4 5 6 7 8 9 10 11 12 13
LA7837
Vcc1 Vcc2
DYVcc2
FEED
BAC
K
V.TR
IGER
IN
PUT
50/6
0HZ
SW.
IC Block Diagrams
-7-
7 12 8
910
1115
1814
1317
1620
Noi
se B
PF
Noi
seD
etec
tor
I2 C B
usIn
terf
ace
SA
P D
emod
ulat
ion
Blo
ck
Co
mp
osi
teS
ign
al In
pu
t
2.2µ
F
0.1µ
F
0.04
7µF
SA
P S
igna
lD
etec
tor
SA
P O
ffset
Abs
orpt
ion
0.47
µF0.
1 µF
68K
Ω
5.1
KΩ
16.6
KΩ
Noi
seD
etec
tor
+
+
+
2322
244
63
5
4.7µ
F
1µF
0.1µF
+
1KΩ
2
22µF
+
1/2V
cc
42
1µF
+
3435
3836
3937
4140
Filt
erC
ontr
ol
Ste
reo
Dem
odul
atio
nB
lock
fH LPF
fH Tra
p
Sw
itch
75µS
De-
emph
asis
Offs
etA
bsor
ptio
n
dbx
Noi
se
Red
uctio
n B
lock
Mat
rix
Sel
ecto
rB
lock
SurroundBlock
Tone Control Block
Volume Control Block
3332
31
26 25
2128
2930
2719
1
2.2µ
F
+0.
1µF
2200
pF
+V
cc
+ +10 µ
F
10 µ
F
D/A
2.2µF
+
0.1µF
+
2200pF
0.022µF
4.7µF
+
1 µF
+
10 µF
+
3.3 µF
+
1 µF
+
1 µF
+
3 KΩ
1 µF
+
D/A
Inpu
t A
ttenu
ator
I2 C B
usIn
terf
ace
D/A
Filt
er
Power Supply
Reference Voltage
Pilot Detector 1
Pilot Detector 2
Phase Detector 1
Phase Detector 2
SAP Signal Output
SAP Signal Input
Spectral Timing Setting
VCA Offset Absorption
Wide-band Timing Setting
Wide-band RMS Setting
Spectral RMS Setting
Variable Emphasis Input Offset Absorption
Variable Emphasis Offset Absorption
Analog Ground
Timing Current Setting
SDA
SCL
GND(I2C bus)
R-c
han
nel
O
utp
ut
L-c
han
nel
O
utp
ut
Surround Timing Setting
R-channel Offset Absorption
R-channel Capacity of High Frequency Band Width
R-channel Capacity of Low Frequency Band Width
L-channel Offset Absorption
L-channel Capacity of High Frequency Band Width
L-channel Capacity of Low Frequency Band Width
External R-channel Input 3
External L-channel Input 3
External R-channel Input 1
External R-channel Input 2
External L-channel Input 1
External L-channel Input 2
L-channel Fixed Output
Monaural Offset Absorption
R-channel Fixed Output
UPC1851< MTS> IC3401
IC Block Diagrams
-8-
STR81145A < Double Rectifier > IC631
2 3
Pin Function 1 Delay 2 T1 3 T2 4 Gate 5 Common
4
5
1
STR81145A
r1
r2 r3
Z1
Q1
Z2
Q3
Q2
Triac
1
2
3MUTE
REFERENCES
NON INVERTING INPUT (1)
INVERTING INPUT (1)
SUR/MUTING
TURN ON AND OFF
9
5
10
84
6
Vcc
NON INVERTING INPUT (2)
INVERTING INPUT (2)
L
R
-
+
-
+
GND
RF I 27K
RF I 27K
SCPROTECTION
Tj
THPROTECTION
OUTPUT-L
OUTPUT-R
TDA7263M
TDA7263M < AUDIO AMP. > IC001
-9-
Service Adjustments
(E BB)
Q251
KB
TP-G TP-H
VR465H-WIDTH
VR510V-SIZE
R436L430
T431
Q431HORIZ.DRIVE
Q432HORIZ. OUT
L430
T451F.B.T.
FOCUS SCREEN
KDY
L441
L472
IC501VERT.OUT
Q526
C521
Q462
Q461
C510C515
KZK1111
AUDIO INVIDEO IN(R) (L)
C631
C632
IC631
L602
PS602
R632
R631
RL640
L601
KE
Q613POWER
SWITCHING
F60
1K
AC
Q612POWER DRIVEQ611
Q693
D615
Q692
C652
C672
Q681
Q651
VR651+B ADJ.
KL KM
Q141Q140 Q202
Q201
Q691
Q252
Q861Q862
Q021Q684
Q111
Q243Q242
Q261
AV BOARD
IC3401MTS
KI
KY
IC1101Q661
C017
IC001AUDIOAMP.
IC201IF/VIDEO/CHROMA
KUVR191AGC
KQ
TP-D
X131X141
TP-A
L171
KP
Q131
L161
X242X161
A10
1 T
UN
ER
VR351H-CENTERX
243
X24
1
IC2011H DELAY
IC651
KS
KG
KJQ852
Q815
Q871
Q816 Q817
Q646
IC803
X80
1
IC802MEMORY
IC801CPU
KC
KN
KA KAA
KH
KD
T611CONVERTER
TRANS.
SW1902 SW1903 SW1904 SW1905 SW1906
VOL. + MENUCH DOWNCH UPVOL. -
R528
R527
TP-B
D651
Horizontal Centring Adjustment1. Receive the mono-chrome circular pattern.2. Adjust VR351 for optimum horizontal centre
position.Horizontal Centre
Vertical Centring Adjustment1. Tune the receiver to an active channel. Check that the picture is in the
centre of TV screen.2. If the picture is too low, change a resistor R528 from 1KΩ, 1/2W to 470Ω,
1W. If the picture is too high, delete a resistor R528 (1KΩ, 1/2W).
Vertical centreHorizontal Width Adjustment1. Receive the mono-chrome
circular pattern.2. Adjust V465 for optimum
horizontal width.
RF AGC Adjustment1. Tune the receiver to most clearest (or strongest) VHF station
in your area.2. Set the brightness and contrast control to maximum. Set the
colour control to minimum.3. Turn AGC control (VR191) in the direction which causes
snow to appear, then in the opposite direction until the snow just disappears.
+B Power Supply Adjustment1. Connect DC volt-meter to “TP-B” and the ground. Set the +B adjustment
control (VR651) to mid-range. (Mains voltage AC220 ± 2 volt)2. Set brightness and contrast to minimum. Tune the receiver to an active
channel and synchronized picture.3. Adjust +B adjustment control (VR651) for 130 ± 1.0 volt DC.
Focus AdjustmentAdjust focus control for welldefined scanning lines.
Vertical Size Adjustment 1. Tune the receiver to the mono-chrome circular
pattern.2. Adjust vertical size control (VR510) for full scan.
-10-
Service Adjustments
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 abnormalityoccurs during TV reception, the TV set goes to the stand-by mode.
When an abnormality occurs during TV reception, it causes pin 41 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 1 toswitch off the power oscillation circuit.
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 againvia either the main power switch or the ON-OFF button on the remote control. This will work only if the powersupply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot berestored and the circuit will have to be repaired.
Service information Protection Circuit
TP-G TP-H
VR465H-WIDTH
VR510V-SIZE
Q431HORIZ.DRIVE
L430
T451F.B.T.
FOCUS SCREEN
Q701B-OUT
Q705R-OUT
Q703G-OUT
K7Y1
SW701
NO
RM
AL
SE
RV
ICE
K701CRT SOCKET
VR703BLUE BIAS
VR702GREEN BIAS
VR701RED BIAS
VR705BLUE DRIVE
VR703RED DRIVE
Gray Scale Adjustment1. Receive the mono-chrome circular pattern.2. Set the picture mode to “NORMAL” mode by
pressing the IMAGE button on the remote control.
NORMAL
3. Set the service switch (SW701) on the CRT board to “SERVICE” position.
4. Set RED (VR704) and BLUE (VR705) drive controls to mid position. Set BLUE (VR703), GREEN (VR702) and RED (VR701) bias controls to minimum (fully counterclockwise).
5. Turn the SCREEN control on the F. B. T. to obtain just visible one coloured line.
6. Adjust each bias control alternately until a dim white line produced.
7. Set the service switch (SW701) to “NORMAL”position.
8. Adjust RED and BLUE drive controls alternately to produce normal black and white picture in highlight areas.
9. Check for proper gray scale at all brightness levels.Note: If the gray scale adjustments is made after pic-
ture tube replacement, check the brightness level adjustment.
(MAIN BOARD)
(CRT BOARD)
Grey Scale Adjustment
Adjustments in the Service Mode
-11-
Since some chassis circuit adjustments are controlled by the CPU built into the chassis, adjustments can be madeby inputting data directly via the remote control handset supplied with set.[Memory IC replacement]Since adjustment data for the circuit is stored in the memory IC (IC802) that comes with the CPU, the initializing ofthe memory IC and re-inputting of the adjustments data must be made when the memory IC is replaced.
Initializing of the Memory IC1. Replace IC 802.2. Switch the TV on.3. Press and hold the MENU button on the TV set, then
press “0” button on the remote control transmitter.
O-R MENU CHA 0
Initial Data is as follows;
Adjustment Item Initial DataINPUT LEVEL 25
STEREO VCO 23
FILTER 32
LOW SEPARATION
HI SEPARATION
SAP VCO
29
26
27
[MTS Adjustment Data]
[3 Steps Picture Mode Normalization Data]
COLOR
CONTRAST
BRIGHTNESS
STRONG NORMAL SOFT
34
63
15
30
63
32
22
63
40
Service mode adjustments
To enter to the service mode, press and hold the MENU button, then press the NUMERIC button (1, 2, 3 or 4).Each service modes are as follows;
TV set Remote control button
MENUbutton
Digit "1"
Digit "2"
Digit "3"
Digit "4"
Item
3 steps picture mode normalization
Sub-Brightness/Sharpness Adjustment
Stereo Adjustment
Fine Tuning mode
When the memory IC is replaced, Sub-Brightness and MTS adjustments should be-adjustments according toservice mode adjustments described below.
Sub-Brightness Adjustment
NOTE: AGC and Gray Scale must be adjusted before attempting the BrightnessLevel Adjustment.1. Receiver the mono-chrome circular pattern.2. Connect the DC voltmeter “+” lead to TP-H and “-” lead to TP-G on the main
board.3. Press and hold the MENU button on the TV set, then press “2” button on the
remote control transmitter to enter the Service Mode.
TP-G TP-H
VRV-S
Q431HORIZ.DRIVE
T451F.B.T.
FOCUS SCREEN
DC Volt Meter
O-R MENU CHA 2
4. Adjust the voltage to become DC 750mV ± 20mV by pressing the VOLUME (+/-) button on the remote control or TV set.
5. Press the MENU button to return to the normal TV mode.Note: Check the brightness level in every active channels, readjust if necessary.
SUB-BRIGHT 32SUB-SHARPNESS 31
ADJUST: - /+CHOOSE: EXIT:MENU
(Service Mode)
Q141Q140 Q202
Q2
Q
Q111
Q243Q242
IC3401MTS
IC110
IC201IF/VIDEO/CHROMA
VR191AGC
TP-DX141
TP-A
L171
KP
Q131
X242X161
A10
1 T
UN
ER
X24
3
X24
1
IC2011H DELAY
KS
Base
TP20
TP301
C3407
TP317
C3437Frequency
Counter
Ground with jumper wire
GND
MAIN BOARD
Adjustment in the Service Mode
-12-
Sound Input Level Adjustment
1. Connect a signal generator to TP301 (C3407, - side) on the Main Board and ground. Signal output=300Hz, 150mVrms.
2. Connect a DC Volt-Meter to TP-317 (C3437, + side) and ground.
3. Ground TP-20 (base of Q131) with the jumper lead. (Setting of the no signal condition).
4. Switch the TV set on.Press and hold the MENU button on the TV set, then press “3” button on the remote control transmitter to enter theService Mode.
(Service Mode)
5. Adjust voltage to become DC 500mVrms±10mVrms by pressing the VOLUME(+/-) button on the remote control or TV set.
6. To exit from the service mode, press the MENU button.
Stereo VCO Adjustment
1. Connect a frequency counter to TP317 (C3437, + side) and ground.
2. Ground C161 with the jumper lead.3. Switch the TV set.
Press and hold the MENU button on the TV set, then press “3” button on the remote control transmitter to enter the Service Mode.
4. Select “STEREO VCO” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
MTS Filter Adjustment1. Connect a signal generator to TP301 (C3407, - side) on
the Main Board and ground. Signal output=15.734KHz, 100mVrms.
2. Connect an Audio Volt-Meter to TP317 (C3437, + side) and ground.
3. Ground TP-20 (base of Q131) with the jumper lead. (Setting of the no signal condition.)
4. Switch the TV set on.Press and hold the MENU button on the TV set, then press “3” button on the remote control transmitter to enter theService Mode.
and picture tube ground leads.3. Remove the chassis completely by sliding straight back.
CAUTION: Do not disturb the deflection yoke or magnet assembly on the picture tube neck. Care must be taken to keep these assemblies intact, unless picture tube is being replaced. Discharge the picture tube’s coating before handling the tube.
1. Remove the chassis.2. Place the cabinet’s front down on a soft
surface.3. Remove the screw on the earth corner of
the picture tube and gently remove the picture tube from the cabinet.
4. Install a replacement picture tube in reverse order. Referring to Figure-2, properly install the degaussing coil and the picture grounding lead on the picture tube.
Note: If the picture tube is replaced mountthe degaussing coil properly on the tube.See illustration.
Purity and ConvergenceAdjustment
Purity and Convergence havebeen aligned at factory norealignment is necessary. [ Figure-2. Picture Tube Removal ]
-16-
F5BA/F5BASCabinet Parts ListNote: Parts order must contain Service Ref. No., Part No., and descriptions.
(MONO) AUDIO OUT(VARIABLE)
L
R
VIDEOR AUDIO L
VIDEOAUDIOINPUT
MONITOROUTPUT
S-VIDEO
VHF/UHF/CATV75 INTERNAL
SPEAKERSON OFF
1 610 266 5895 BUTTON POWER610 210 7302 COIL SPRING
2 610 266 5918 DEC INLAY3 610 289 6329 DOOR4 610 104 2505 LATCH PUSH5 610 103 8027 DUBBING BUTTON6 610 274 2701 DEC CONTROL SHEET7 610 266 5901 BUTTON UNITED8 610 266 1248 CABINET FRONT 9 610 274 1889 CABINET BACK
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
610 205 0097 LINEARITY COIL MISCELLANEOUSJ305 Not used
!
Chassis Electrical Parts List
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