Sony SU-HS2 / VPL-HS2 / VPLL-CW20 Service Manual ▷ View online
6-37
VPL-HS2
6-37
QA
QA
C104
C105
C106
C107
C108
C109
C110
C201
C202
C203
C204
C205
C207
C208
C209
C211
C216
C224
C226
C227
C228
C229
C231
C232
C233
C237
C240
C301
C302
C304
C305
C307
C308
C309
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C322
C323
C324
C325
C326
C327
C328
C329
C330
C331
C332
C333
C334
C335
C336
C337
C338
C425
C435
C438
C439
C440
CN101
CN104
C
N105
CN301
CN302
D101
D102
D103
D104
D108
D109
D110
D201
D202
D203
D301
D304
D305
D308
FB101
FB301
FB304
FB305
IC102
IC103
IC105
IC201
IC202
IC203
IC301
IC302
IC303
IC304
IC305
IC306
IC307
J101
L101
L201
L302
Q101
Q102
Q103
Q104
Q201
Q202
Q203
Q204
Q205
Q206
Q207
Q208
Q209
Q210
Q212
Q213
Q303
Q304
Q305
Q306
Q307
Q308
Q309
Q401
Q402
Q403
Q408
Q409
Q410
Q413
Q421
R115
R120
R121
R124
R125
R127
R132
R133
R134
R135
R136
R204
R206
R207
R208
R212
R213
R214
R215
R216
R221
R224
R225
R228
R229
R230
R231
R232
R234
R235
R236
R237
R238
R242
R272
R302
R304
R305
R307
R309
R310
R312
R313
R315
R316
R323
R324
R325
R326
R327
R328
R329
R331
R333
R334
R336
R337
R401
R402R403
R404
R428
R430
R434
R435
R436
R445
R453
R454
R462
R480
R481
RB101
TH201
TP101
TP102
TP301
TP302
QA
-A SIDE-
SUFFIX: -11
QA
-B SIDE-
SUFFIX: -11
C101
C102
C103
C206
C210
C212
C213
C214
C217
C218
C220
C221
C225
C234
C236
C303
C306
C320
C321
C339
C340
C341
C342
C423
C430
C437
C451
D105
D106
D107
D302
FL302
FL303
JL101
JL102
JL103
JL104
JL105
JL106
JL107
JL108
JL109
JL110
JL111
JL112
JL113
JL114
JL115
JL116
JL117
JL118
JL119
JL120
JL121
JL122
JL123
JL124
JL125
JL126
JL127
JL139
JL140
JL141
JL142
JL143
JL144
JL145
JL146
JL147
JL148
JL149
JL150
JL151
JL152
JL153
JL154
JL155
JL156
JL157
JL158
JL159
JL160
JL161
JL162
JL165
JL166
JL167
JL201
JL202
JL301
JL302
JL303
JL304
JL305
JL306
Q411
R101
R102
R103
R104
R105
R106
R107
R108
R109
R110
R111
R112
R113
R114
R116
R117
R118
R119
R122
R123
R126
R128
R129
R130
R131
R137
R138
R201
R202
R203
R205
R209
R210
R211
R217
R218
R219
R220
R222
R223
R226
R227
R239
R240
R243
R
244
R245
R246
R249
R264
R268
R270
R271
R273
R274
R275
R277
R278
R279
R281
R282
R283
R284
R285
R301
R303
R306
R308
R311
R314
R317
R318
R319
R320
R321
R322
R335
R338
R339
R340
R341
R342
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R353
R354
R355
R356
R357
R358
R359
R360
R361
R362
R363
R364
R365
R405
R406
R425
R426
R427
R429
R431
R437
R438
R443
R444
R452
R455
R456
R461
R478
R479
R482
QA Board
*:B SIDE
D101
E-2
D102
E-2
D103
C-1
D104
E-2
D105
* B-1
D106
* B-1
D107
* D-2
D108
D-2
D109
E-1
D110
E-1
D201
E-2
D202
D-4
D203
D-4
D301
C-2
D302
* A-3
D304
C-2
D305
C-2
D308
C-2
IC102
D-2
IC103
D-2
IC105
D-2
IC201
E-4
IC202
E-3
IC203
E-4
IC301
B-3
IC302
C-2
IC303
B-4
IC304
C-1
IC305
B-2
IC306
C-2
IC307
B-2
Q101
D-2
Q102
D-2
Q103
D-3
Q104
D-3
Q201
E-1
Q202
E-2
Q203
E-2
Q204
F-2
Q205
E-3
Q206
E-3
Q207
D-3
Q208
D-3
Q209
E-3
Q210
D-3
Q212
C-4
Q213
C-4
Q303
B-2
Q304
C-2
Q305
C-2
Q306
B-2
Q307
C-2
Q308
C-3
Q309
B-3
Q401
F-2
Q402
E-2
Q403
F-3
Q408
E-2
Q409
E-1
Q410
F-3
Q411
* E-2
Q413
E-3
Q421
E-3
TP101
F-4
TP102
C-1
TP301
B-3
TP302
B-4
6-38
VPL-HS2
6-38
2
3
4
5
A
B
C
D
E
F
G
H
1
U
U
S41
CN41
!
1
2
FILTER COVER
GND
TO
C BOARD
CN602
(FILTER COVER SW)
U
B-SS1746-U-P1
U
-A SIDE-
SUFFIX: -11
U
-B SIDE-
SUFFIX: -11
CN41
S41
SAFETY CHECK-OUT
After correcting the original service problem,
perform the following safety checks before
releasing the set to the customer :
perform the following safety checks before
releasing the set to the customer :
Check the metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC
leakage. Check leakage as described below.
screws, and all other exposed metal parts for AC
leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to
any exposed metal part having a return to
chassis, must not exceed 0.5 mA. Leakage
current can be measured by any one of three
methods.
earth ground and from all exposed metal parts to
any exposed metal part having a return to
chassis, must not exceed 0.5 mA. Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these
instruments.
manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The
Data Precision 245 digital multimeter is
suitable for this job.
suitable for this job.
3. Measuring the voltage drop across a resistor
by means of a VOM or battery-operated AC
voltmeter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM
that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
voltmeter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM
that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
Parts on Set
Fig A. Using an AC voltmeter to check AC leakage.
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
0.15 µF
1.5 k
Z
VPL-HS2
Sony Corporation
B&P Company
9-870-352-02
English
03EY22-1
©2002.10
