JVC TM-H1950CGE User manual

SERVICE MANUAL
COPYRIGHT © 2007 Victor Company of Japan, Limited No.51961E
2007/9
COLOUR VIDEO MONITOR
51961E20079SERVICE MANUAL
TM-H1950CG/C, TM-H1950CG/E,
TM-H1950CG/ER, TM-H1950CG/U
COPYRIGHT © 2007 Victor Company of Japan, Limited
DIFFERENCE LIST
PRINTED WIRING BOARD PARTS LIST
MAIN P.W. BOARD ASS'Y
NOTE:
• After replacing the Q1454, be sure to readjust the "H.SIZE" and "SIDE PIN".
• Please assemble D1402 and D1410, then insert to the location of D1402.(Fig.1)
SUB DEF P.W. BOARD ASS'Y
Supplementary
The transistor and diode of TM-H1950CG/C, TM-H1950CG/E, TM-H1950CG/ER and TM-H1950CG/U have been
changed during the production.
Therefore, this service manual describes only the items which differ from those of the TM-H1950CG/C, TM-
H1950CG/E, TM-H1950CG/ER and TM-H1950CG/U service manuals.
For details other than those described in this manual, please refer to the TM-H1950CG/E and TM-H1950CG/
U service manuals (No.51961, 2002/6)(No.51961C, 2004/3), TM-H1950CG/C service manuals (No.51961B,
2003/5)(No.51961C, 2004/3), TM-H1950CG/ER service manual (No.51961D, 2006/3).
Ref. No. Part No. PART NAME DESCRIPTION
Before the change After the change
Q1454 2SD1408/OY/-LB 2SD1267A/QP/ POWER TRANSISTOR
D1402 RD62E/B/-T2 MTZJ33B-T2 ZENER DIODE
D1410 --- MTZJ33B-T2 ZENER DIODE (Addition)
Ref. No. Part No. PART NAME DESCRIPTION
Before the change After the change
D2523 BYD33G-T3 RGP10J-5025-T3 SI DIODE
BASIC CHASSIS
S1

1-2 (No.51961E)
Fig.1
Before After
D1402
D1410
(Addition)
D1402
5
42
1
3
14
14
58
E
B
EB
E
E
BE
E
BE
C
2
3
5
7
8
19
5
ABLGND 109
GND
8E12
7
E-12
6
HEATER
5
DAF
3
HB
4
B1
2
GND
11
COL
1
2
15
10
15 19
18
SP-OUT
SP-OUT
GND
B1.ADJ
12
EB
C
IN
OUT
B
E
156
13
DAF
12 GND
1
5
7
12
1
4
C
G
9
1
12 48
53
10
ISOLATED
EB
B
B
E
BE
B
T5AH 250V
LIVE
2A
N10
N10
18 17 16 15 14 12 11 10
9
8
7
64
2
13
E
B
5
20
1
24
1012
1315
B
N25
BE
G
IN
OUT
OUT
IN
EB
IN
G
OUT
CKF1555- -1 Group No.
HIRAI
02.04.08
C404
C407
C408
C410
C414
C416
C417
C421
C451
C452
C453
C502
C552
C556
C557
C571
C576
C577
C601
C602
C603
C604
C605
C611
C612
C615
C618
C901
C902
C903
C904
C906
C907
C908
C909
C910
C913
C914
C916
C931
C932
C934
C935
C936 C937
C942
C943
C944
C975
C977 C978
C980
W156
C983
C991
C992
C993
A
I
L
U
PW
S1
CP971
CP972
CP973
W157
CP975
D401
D403
D404
D407
D526
D552
D554
D5
55
D556
D562
D571
D572
D573
D574 D575
D576
D605
D606
D901
D902
D903
D904
D905
D920
D922
D923
D924
D940
D941
D942
F901
IC401
IC411
IC451
IC601
IC901
IC971
IC973
K901
L461
L523
L551
L901
LF901
Q402
Q403
Q405
Q431
Q451
Q453
Q454
Q502
Q504 Q505
Q521
Q551
Q601
Q602
Q603
Q604
Q935
R401
R403
R406
R408
R411
R413
R415R417
R420
R421
R423
R428
R431
R433
R434
R452
R453
R454
R457
R461
R462
R506
R509
R551
R552
R553
R554
R557
R558
R560
R562
R563
R564
R573
R574
R575
R576
R580
R584
R603
R604
R613
R617
R619
R620
R621
R902
R904
R906 R907
R909
R921
R925
R950
R951
R958
R959
R960
R972
R974
CP976
R987
R988
RY401
RY901
T501
T551
T901
TH901
VR901
W001
W002
W003
W004
H004
H007
W006
W007
W009
W010
C425
W016
A
W166
D409
W025
W028
W031
W032
R928
W035
UL MARK
W045
W046
W054
W057
W061
W062
W063
W065
W071
W072
W074
W160
W158
W087
W088
W089
W090
W093
W097
W102
W103
W104
W106
W109
W110
W111
W113
W117
W118
W121
W122
W126
W127
W129
W130
W131
W135
W144
W137
W138
W139
W140
W141
W163
W150
W154
W155
A
W169
W170
W171
C428
C994
W175
C454
C458
BE
BE
EB
B
E
1 2
25
24
20
15
10
5
24
25
20
15
10
5
2 1
13
34
2
1
EB
BE
12
34
124
789 6
12
LB
GND
NC B1
X-RAY-2 X-RAY-1
D
GS
B
E
BE
13
24
13
246
79
810
4
12
34
12
3
EB
C401
C402
C403
C405
C406
C409
C412
C415
C418
C419
L552
C423
C424
C431
C503
C521
C527
C529
C555
C561
C562
C563
C564
C572
C573
C574 C575
C578
C613
C614
C616
C617
C619
C905
C911
C912
C915
C930
C933
C938
C939
C941
C971
C976
C979
C982
C984
C985
C986
C987
W145
C988
HV
S
CN001
CN002
CN003
CN004
D402
D405
D406
D408
D521
D522
D524
D525
D551
D553
D557
D577
D578
D579
D580 D603
D906
D921
D939
D971 D972
D973
D974
D977
D978
D979
D980
D981
D982
IC902
IC905
IC906
K972 K973 K974
L971
L972
L973
Q401
Q452
Q501
Q503
Q571
Q573
Q574
Q932
Q933
Q934
R402
R404
R405
R407
R410
R412
R414
R416
R422
R424
R429
R432
R435
R436
R451
R455
R456
R458
R459
R460
R463
R464
R505
R507
R510
R521
R523
R555
R559
R561
R565
R566
R567
R571
R572
R577
R578
R579
R581
R582
R583
R601
R602
R611
R612
R614
R618
R905
R908
R910
R920
R922
R923
R924
R926
R927
R948
R949
R954
R955
R956
R971
R975
R976
R977
R979
R980 R981
R982
R983
R984
R985R986
RY902
T902
W005
CL001
H003
H002
H005
H001
W008
CL002
W014
W024
W026
W029
W030
W034
W038
W039
W040
W041
W042
W044
W047
W048
W049
W050
W051
W174
W053
W055
W056
W059
W060
W162
W067
W068
W069
W070
C528
R524
W073
W075 W076 W077
W080
W082
W083
W084
W085
W086
W092
W159
W100 W101
W105
W107
W108
W112
W116
W119
W123
W124 W125
W128
W132
TP-B1
W161
W142
W146
W147
W148
W149
W151
W152
W164
C990
W168
D984
D983
R465
C457
C456
C459
C455
R508
R903
R525
TP-E
TP-91
(B1)
FRONT
()
()
PATTERN DIAGRAMS
MAIN PWB PATTERN

(No.51961E)1-3
SECTION 1
PRECAUTION
Please refer to "TM-H1950CG/E and TM-H1950CG/U (No.51961)" about this section.
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Please refer to "TM-H1950CG/E and TM-H1950CG/U (No.51961)" about this section.
SECTION 3
DISASSEMBLY
Please refer to "TM-H1950CG/E and TM-H1950CG/U (No.51961)" about this section.
SECTION 4
ADJUSTMENT
Please refer to "TM-H1950CG/E and TM-H1950CG/U (No.51961)" about this section.
SECTION 5
TROUBLESHOOTING
Please refer to "TM-H1950CG/E and TM-H1950CG/U (No.51961)" about this section.

(No.51961E)
VPT
Printed in Japan
Victor company of Japan, Limited
Display category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan