SERVICE HINTS.......................................................................................................................................................................3
ADJUSTMENT PROCEDURE AND FACTORY SETTINGS.....................................................................................................4
PARTS LOCATION.................................................................................................................................................................12
REPLACEMENT PARTS LIST................................................................................................................................................13
1. It is advisable to insert an isolation transformer in the
a.c. supply before servicing a hot chassis.
2. When servicing, observe the original lead dress in the
high voltage circuits. If a short circuit is found, replace
all parts that have been overheated or damaged by
the short circuit.
3. After servicing, see that all the protective devices
such as insulation barriers, insulation papers, shields
and isolation R-C combinations are correctly
installed.
4. When the receiver is not being used for a long period
of time, unplug the power cord from the a.c. outlet.
5. Potentials as high as 31.5kV are present when this
receiver is in operation. Operation of the receiver
without the rear cover involves the danger of a shock
hazard from the receiver power supply. Servicing
should not be attempted by anyone who is not
familiar with the precautions necessary when working
on high voltage equipment. Always discharge the
anode of the tube.
6. After servicing make the following leakage current
checks to prevent the customer from being exposed
to shock hazard.
LEAKAGE CURRENT COLD CHECK
1. Unplug the a.c. cord and connect a jumper between
the two prongs of the plug.
2. Turn on the receiver’s power switch.
3. Measure the resistance value with an ohmmeter,
between the jumpered a.c. plug and each exposed
metallic cabinet part on the receiver, such as screw
heads, aerials, connectors, control shafts etc. When
the exposed metallic part has a return path to the
chassis, the reading should be between 4M ohm and
20M ohm. When the exposed metal does not have a
return path to the chassis, the reading must be
infinite.
LEAKAGE CURRENT HOT CHECK
1. Plug the a.c. cord directly into the a.c. outlet. Do not
use an isolation transformer for this check.
2. Connect a 2kΩ 10W resistor in series with an
exposed metallic part on the receiver and an earth,
such as a water pipe.
3. Use an a.c. voltmeter with high impedance to
measure the potential across the resistor.
4. Check each exposed metallic part and check the
voltage at each point.
5. Reverse the a.c. plug at the outlet and repeat each of
the above measurements.
6. The potential at any point should not exceed
1,4Vrms. In case a measurement is outside the limits
specified, there is a possibility of a shock hazard, and
the receiver should be repaired and rechecked before
it is returned to the customer.
HOT CHECK CIRCUIT
a.c. VOLTMETER
2kΩ 10 Watts
TO INSTRUMENT’S EXPOSED
METALLIC PARTS
Fig. 1.
X-RADIATION WARNING
1. The potential sources of X-Radiation in TV sets are
the high voltage section and the picture tube.
2. When using a picture tube test jig for service, ensure
that the jig is capable of handling 31.5kV without
causing X-Radiation.
NOTE: It is important to use an accurate periodically
calibrated high voltage meter.
1. Set the brightness to minimum.
2. Measure the high voltage. The meter should indicate.
30.5kV ± 1kV.
If the meter indication is out of tolerance, immediate
service and correction is required to prevent the
possibility of premature component failure.
3. To prevent any X-Radiation possibility, it is essential
to use the specified tube.
WATER PIPE
(
EARTH)
2
SERVICE HINTS
Focus
How to remove the rear cover
1. Remove the 9 screws as shown in Fig.2.
L-Board
SCREWS
LOCATION OF CONTROLS
SCREWS
Fig.2.
Abb.2.
Fig. 2.
Z-Board
H-Board
A-Board
D-Board
P-Board
Screen
DP-BoardDG-Board
G-Board
K-Board
3
ADJUSTMENT PROCEDURE
Item / PreparationAdjustments
+B SET-UP
1. Receive a Greyscale signal.
2. Set the controls :BrightnessMinimum
ContrastMinimum
VolumeMinimum
1. Set the +B voltage up as follows:Adjust R811 so that B2 shows 148V±1V.
To adjust Cutoff connect an oscilloscope to the Blue
cathode. Press "STR" and adjust "cutoff" value using the
"Yellow" and "Blue" buttons until the black level is 160V±5V,
press "STR" to store the value. Remove the oscilloscope.
Select Ug2 adjustment and adjust the screen VR until the
display shows "O.K."
FACTORY SETTINGS
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To get in to Self-Check mode
press the down (-/v) button on the customer controls at the front of the TV set, at the same time pressing the STATUS button
on the remote control.
To exit Self Check, switch off the TV set at the power button.
If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".
4
WAVEFORM PATTERN TABLE
,
Vert OutIC601 Pin 31
0,7V
H - OutIC601 Pin 50
3V
HFLBIC601 Pin 13
6,2V
20mS
64µS
Vert DriveIC451 Pin 2
57V
H - OutIC701 Pin 5
30mV
HFLBIC701 Pin 8
1,5V
20mS
64µS
VFLBIC451 Pin 3
1V
20mS
H - PulseBase Q503
2V
64µS
Video OutIC601 Pin 59
2V
R - OutIC601 Pin 37
275mV
R - OutE8 Pin5
6V4
SCLIC1201 Pin 3
64µS
64µS
64µS
G - OutIC601 Pin 38
275mV
G - OutE8 Pin3
4,4V
SVM OutIC601 Pin 34
64µS
64µS
64µS
64µS
B - OutIC601 Pin 39
275mV
64µS
B - OutE8 Pin4
4,6V
64µS
3,7V
13µS
88mV
64µS
5
ALIGNMENT SETTINGS
(The figures below are nominal and used for representative purposes only.)
1. Set the Bass to maximum position, set the Treble to minimum position, press the volume down button
(-/v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote
control, this will place the TV into the Service Mode.
2. Press the RED / GREEN buttons to step up / down through the functions.
3. Press the YELLOW / BLUE buttons to alter the function values.
4. Press the STR button after each adjustment has been made to store the required values.
5. To exit the Service Mode, press the "N" button.
Alignment FunctionSettings / Special features
Horizontal Position
Vertical Position
Horizontal Amplitude
Vert. Amplitude
EW-amplitude
EW-amplitude
Trapezium-comp
Trapezium-comp
Vertical Linearity
Vertical Symmetry
DVCO
Cut-off DC
Ug2 Test
H-Pos
061
V-Pos
005
H-Amp
055
V-Amp
054
E/W-Amp1
-128
E/W-Amp2
006
Trapez-1
047
Trapez-2
-128
V-Lin
006
V-Sym
002
DVCO
-005
Cut-off
0171
Ug2
055
O.K.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Receive a PAL Colour Bar Pattern. For
DVCO alignment press "Blue" button, wait
until the colours are changing slowly and
press "STR".
To adjust Cutoff connect an oscilloscope to
the blue cathode. Press "STR" and adjust
"cutoff" value using the "Yellow" and
"Blue" buttons until the black level is
160V±5V press "STR" to store the value.
Remove the oscilloscope.
Select Ug2 adjustment and adjust the
screen VR until the display shows "O.K."
Black Level
160V±5V
GND
Highlight
Lowlight
Sub-Brightness
High 0902 0777 0864
Low0117 0132 0112
Sub-Brightness
255
6
Optimum setting.
Optimum setting.
H3 9 7 6 4 3 1
JK3405
LRC
JK3406
WSLSR
JK3406
R Out
L Out
R Out
L In
R In
R Out
L Out
L In
R In
L Out
R Out
L In
1
1
333
6
2
AV1
AV2
R In
1
6
2
6
2
AV4
AUDIO BLOCK DIAGRAM
Tweeter
JK2401
L + R
Speaker
A45
1
R
IC2303
L 28
R 27
H/P L 47
H/P R 48
L 53
R 54
1
1
A46
L 3
R 23
IC2301
18 R
10 L
8
9
7
8
L
2105
IC2306
5
10
R 33
L 37
R 57
R 36
R MIC
2
1
A41
A40
1
1
L 56
H - BOARD
L 38
L 38
16151718121310
H2
16151718121310
A11
L 59
L 52
R 61
R 40
5
4
11
H1
23
5
4
11
23
A10
L 2
R 4
R 11
L 62
R 64
L 23
R 25
JK3102
Main H/P
R
L
R
L
A - BOARD
IC2001
60 Mono In
67 Ana In
Main
Tuner
TNR003
25 H/P L
24 H/P R
L 314 L
R 611 R
IC2302
IC3001
16 L
18 R
A9
4
G - BOARD
A13
4
12 910
G2 or G6 1 2 9 10
7
RCA
Audio
JK3406
Z1
DP1
AV4
JK3403
Z2
DP5
DP2
DP3
Z3
Z - BOARD
Z7
RT1
Rotation
A20
DY Coil
AV2
DG - BOARD
DG01toDG70
JK3402
H - BOARD
AV1
JK3401
H1
A10
A44
H3
A11H2
DP4
DP - BOARD
WIRING BLOCK DIAGRAM
AV3
JK3102
G - BOARD
K - BOARD
K3
In
Mains
G11
K1
G1
G2
K2
A46
A - BOARD
A7
A6
A9
A3D3
A2D2
A1D1
D20
D6
A13
A21L1
A21
L3
A1101U1
TweeterVertical
Speakers
A41A45
A4A40
JigR-MicL-MicL+R
A1102U2
D - BOARD
D5
D9
DY
Coil
Coil
Degauss
8
CRT
JK351
Socket
L - BOARD
L5
L2
L11
L12
VM
Coil
CRT
CRT
Earth
Earth
U - BOARD
Heater Supply
H. Flyback
D595
D592
H-DAF
V-DAF
D - BOARD
D1
7
8
A3
A1
V PROTECTION
EW Protection
D862
6
6
Q451
-VCC Vertical
D865
+15V Supply
D867
+VCC Vertical
D869
JK3102
AV3
GND
IC1101
MATRIX
SWITCH
5
6
99987574101
76
PROTECT
U - BOARD
SERVICE
Q854Q851
4
D2
4
A2
U1413122728151426
4
A1101
Q1114
SCL3(0)
SDA3(0)
SCL1
SDA1
13122728151426
77
100
LED
SCL2
SDA2
U2
A1102
127
KEY SCAN
PROTECT
9
9
124
20
20
RMCN
7
In
Out
QLINK
8
22
8
22
RM1001
K - BOARD
2
A4
K1
A6
Rout
RMCN
KEY
245
245
MODEL DEPENDANT
D1011
LED
G - BOARD
G2
A7
MODEL DEPENDANT
4
4
CONTROL BLOCK DIAGRAM
A - BOARD
SDA2
SCL2
9
27
53
52
SDA2
SCL2
7
6
IC1315
SLOW AV4
SLOW AV2
SLOW AV1
6
13
27
IC3001
IC2001
21
3
SDA1
SCL1
Sub
Tuner
TNR004
SDA1 SCL1
SDA1
Main
Tuner
TNR003
SCL1
34
33
2
SDA1
SCL1
IC1253
2
SCL1
IC1107
3
SDA1
SDA1
SDA0
A4
JIG
SDA2
SCL1
SCL2
32456
1714181615
SDA1
SCL1
SDA2
4
35176
SDA0
SCL0
7
SDA0
SCL0
5
6
IC1104
13
SCL2
SCL0
A44
DG
SDA2
23
53
522327
SCL2
V-DAF
H-DAF
1
90
89
Q1316
89
90
IC1304IC1301
82
83
IC1316
48
49
IC1303
H - BOARD
DG - BOARD
AV1
A11
H2
SCL2
SCL2
3
19
20
9
3
21
19
20
SDA2
QLINK
SLOW AV1
SLOW AV2
8
10
12
8
10
AV2
22
A10
22
H1
SLOW AV4
8
AV4
9
4
2.5V
84
140
IC1305
IC1316
28
49
434952
138
136
120119
IC1306
2
100 107
97
66
75
80
57
55
59
61
65
80
84
88
90
101
149
154
7
28
61
718998
18
38
109
117
129
135
138
IC1303
207
1
IC1309
2
33
23
58
70
78
160
147
201196 206
193
IC1304
185 190
157
160158
150
161
168
172176
192
196
202
11
95
108
117
130144
166
179
2
20
40
9
18
20
21
122141
102
DG - Board
201196 206
IC1301
193
1
185 190
1
58
70
78
332311
DG01TODG70
A44
9V
8
IC3003
IC2001
11 12 13 65 66 80 39
5V
9V
1
11
IC459
3
16
IC051
Q1328
95
108
117
Q1327
130144
164147
166
IC1307
2
1
12
323635343337382327
323635343337382327
5V
1
2
3.3V
IC1105
5
IC1109
20
IC1107
8
IC1104
5
IC1253
IC1254
11 13 20 21 22
IC23074IC23064IC23034IC3001
94
IC1101
5V Det
IC1312
IC1310
8
7
8
32 42 53 61 69 85 106 21 87 111 116119 123
14
IC1314
IC1311
8
U - Board
U1
A1101
H - Daf
V - Daf
12
IC2302
1
IC3002
8V
3
42
7
IC4802
20
20
5V Det
CVBS
1
3027281415
U2
1
3027281415
A1102
3.3V
8
IC501
Switch
9V
9V
IC1315
Circuit
3.3V
271630
28
IC1110
IC1106IC1102IC1111
1 7 13 25 38 4437 475
16
16
2.5V
44
POWER SUPPLY BLOCK DIAGRAM
ACL
EHT
Circuit
Monitor
IC851
1
14V
-20V
140V +B2
600V
600V
4
3
T801
IC801
5
376V
D802
D - Board
1
3
D20
1
3
K2
S840
F801
K - Board
MODEL DEPENDANT
1
4
K3
140V +B2
+20V
328
6
376V
MODEL DEPENDANT
14.5V
11
121817
13
10
140V +B2
+15.5V
-15.5V
Heater
220V
6
8
4
9
T551
376V
7.5V
600V
5102
T841
Circuit
Degauss
1
2
D5
Coil
Degauss
5
IC841
D9
H - DY
1
10
12
1300V
5
6
D3123478D1 1 2 11 12 13 14 15 16
A3123478A1 1 2 11 12 13 14 15 16
+20V
-20V
7.5V
D2 6 7 8 9 10 15 16
A2 6 7 8 9 10 15 16
IC4801
A - Board
D6 1 3 5
L3 1 3 5
8
2
D8
IC353
IC352
IC351
L - Board
4
22
2124
IC2301
15V
4
2
6
2
6
2
6
31
1
A21
1
L1
12V12V
220V
140V
VM
Circuit
3.3V
IC1251
IC1252
534
7.5V
3.3V
2
1
IC3302
IC2709
JK351
Heater
CRT
IC1108
2
2
1
1
5V STBY
1
1
2
2
IC2705
IC2706
PIN10
K - Board
-15.5V
+15.5V
IC451
1256
1
2
3
1
4
IC2707
IC2708
1
A6
1
K1
5V STBY
VCC
RM1011
MODEL DEPENDANT
TunerTuner
30V
5V
9V
VOUT(A)
VOUT(B)
1
2
A10
1
3
A20
V - DY
In
Mains
10
IC1303
82
79
43
44
Q1331
Q1320
AV3
C
Y
83
84
207
62
202
200
IC1304
DG - Board
84
Q1329
DG01ToDG70
65
Q1322
6
83
Q1319
2694
2694
62
Q1321
Q1308
67
67
Q1324
195
Q1323
Q1313
5961634140
5961634140
IC1301
205
Q1311
39
39
197
194
Q1312
Q1327 Q1328
A9
Q1306
1
3
3
A13
G - Board
7
5
G2orG6
1
7
5
A7
IC1101
114 Blue
113 Green
112 Red
121 CVBS1A
U - Board
181219
U2
18
12
19
11 11
A1102
C.R.T.
VIDEO BLOCK DIAGRAM
IC3003
IC3001
R-Y 38
IC1315
Red
IC351
R
Y 37
15
B-Y 39
G
14
B
13
R
23
G
21
B
19
536L1536
A21
IC352
Green
38
38
Blue
IC353
38
L - Board
Out 5
B 10
7 In
IC3002
Yout 1 56
V/Yout 44
Cout 2 47
Cout 1 58
30 V 5
63 TV
G 11
41 Vout 3
2
R
R 12
3
G
4
B
6
R
7
G
8
B
22
Y 3 17
Cin 19
Cin 20
1 V 1
12 C 2
10 Y2
V4
24
Y4
26
C4
8
V2
14 13 12 10 9 8
AV4
25 21 20 18
25 21 20 1814 13 12 10 9 8
H1
A10
AV2
Sub
TNR004
Main
TNR003
A - Board
Tuner
Q3006
Tuner
23 22 14 6 2 1H223 22 14 6 2 1
A11
19 711201519 20 152071115 19
AV1
H - Board
11
23
25
3
9
PARTS LOCATION
NOTE:
The numbers on the exploded view below
refer to the mechanical section of the
Replacement Parts List.
26
22
6
1
5
4
AV COVER
7
20
21
14
27
24
28
17
15
17
19
18
9
11
8
2
12
13
16
10
12
Components Identifie d by mark have special characteristics im portant for safety.
* When replacing any of these components, use only manufacturers specified parts.
In case of ordering these spare parts, please always add the complete Model-Type
number to your order.
DescriptionCct RefParts NumberDescriptionCct RefParts Number
EXPLODED VIEW
SPEAKER 1EABG12506A2
TUNER 2ENG27511G
REMOTE CONTROL 3EUR511212A
PANASONIC BADGE 4TBMA060
POWER BUTTON 5TBXA24103A
CRT FIXING SCREW 6THT1062
DOOR LID 7TKPA34403
CONTROL BRACKET 8TMWA003-2
CHASSIS FRAME 9TMX8E050
G P.C.B. 10TNP8EG002AA
K P.C.B. 11TNP8EK008AA
H P.C.B. 12TNPA1724
DG P.C.B. 13TNPA1725AB
L P.C.B. 14TNPA1726AC
DP P.C.B. 15TNPA1727AB
U P.C.B. 16TNPA2042AE
Z P.C.B. 17TNPA2270AB
A P.C.B. 18TNPH0348AY
D P.C.B. 19TNPH0349AM
MODEL LABEL 20TQF8E3158
REAR COVER 21TTUA0371
28PG45 CABINET 22TTYA0442
POWER CORD 23TXASX01CJUG
FOCUS LEAD ASSEMBLY 24TXJF0C0CJFG
BATTERY COVER (REMOTE) 25UR51EC904A
C.R.T. 26W66EKT10X71
ANODE CABLE 27ZTBZAD550A
FBT 28ZTFM77020A
MISCELLANEOUS COMPONENTS
SET FOOT (FRONT) .TBLG3019
REAR COVER LABEL .TBM8E2154
AV LABEL .TBM 8E2168
INDICATION SHEET .TBMU105
LID CATC H .TEK6940
CRT EARTH SPRING .TES2298
SPEAKER REFLECTOR.TKK8E026
AV COVER .TKP8E1323-1
PANEL LEFT .TKPA34605
FRONT PANEL RIGHT.TKPA34707
HANDLE .TKRA14105
PCB BRACKET .TMW8E042
POWER BUTTON JOINT.TMX8E052
OUTER CARTON .TPC8E4870
OUTER CARTON .TPCA77701
CUSHION .TPD8E746
TOP CUSHION .TPD8E747
BOTTOM CUSHION .TPD8E748
LID BOX .TPDF0388
INSERT CUSHION .TPDF0389
BATTERY PACK .UM-3DJ-2P
ROTATION COIL DEGCTLK8E05172