Circuit Diagrams And Pwb Layouts; Power Supply (Ps) - Philips VR120 Service Manual

Circuit diagrams and PWB layouts, Wiring diagram
7. Circuit diagrams and PWB layouts, Wiring diagram
7.1

Power supply (PS)

0040 B5 1309 A13 2306 C13 2313 G11 2325 G10 3304 H5 3311 C12
1300 G2 2300 A10 2307 D10 2314 G13 2327 B12 3305 G4 3312 D4
1301 H3 2301 C11 2308 D7 2315 G10 2328 F9 3306 B11 3314 E6
1302 H5 2302 C7 2309 E11 2316 H4 3300 A11 3307 C10 3315 D8
1304 E14 2303 C6 2310 F5 2317 H9 3301 B12 3308 C5 3316 E10
1306 G12 2304 C8 2311 F10 2318 H7 3302 A10 3309 C7 3318 F4
1308 E10 2305 C10 2312 G10 2319 A14 3303 A10 3310 C11 3319 G9
1 2 3
4
7303
A
MC44608
294V
8 1
VI
DEMAG
B
200 µA
200 µA
C
18.2V
2
NC
7
D
2
E
F
F344
F379
1300
G
F348 F349
W2
Mains
plug
F350 F351
H
W1
1301
F352
T1,25AL
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
I
DO NOT OPERATE WITHOUT CASE
.. CAUTION : LETHAL POTENTIALS AT PRIMARY
OSCILLOGRAMS
..V MEASURED IN PLAYBACK MODE
..V MEASURED IN RECORD MODE
1 2 3
VR120
3320 G13 3328 A12 3336 B11 3352 F12 5301 B8 5308 C10 6306 E10 6313 H7
3321 G13 3329 A12 3343 C14 3353 F13 5302 C12 6300 C11 6307 E6 6315 B11
3322 D5 3330 B12 3344 D14 4302 B14 5303 D12 6301 C10 6308 E10 6316 B12
3324 I8 3331 E6 3345 D15 4303 A14 5304 G11 6302 D7 6309 G10 6317 B13
3325 I9 3332 B13 3347 D4 4305 E13 5305 H5 6303 D10 6310 G6 7300 A9
3326 H5 3333 C12 3350 E13 5009 E8 5306 E12 6304 D7 6311 G7 7301 B10
3327 B12 3334 E8 3351 F12 5300 C7 5307 E11 6305 E7 6312 H6 7302 C7
4 5 6
200 µA
VCC 6
t
7302
2SK2750
0.8V
3308
F301 F302 F303 F304
5
100R
GND
4 1
5.1V
CTRL 3
I343
3312 3347 F339
1R 1R
for < 1Watt 3K9 1% and 470R
F340
6307 F342
BAV21
50V / ZL-Type
3318
F345 F346 F347
1K
3305 F300
220K
F357
1N4006GP 1N4006GP
F356
6310 6311
5305
HF2022R
1N4006GP 1N4006GP
I326
3326
1302
6312 6313
DSP 220R
F353 F354 F380
3304
not used V
SIOV-S05K420GAS3
GND GNDD GNDLED
GNDM1
4 5 6
7. 64
7303 A3 7310 D15 9002 H1 C300 G14 F303 C6 F310 A8 F317 C11 F324 E12
7304 D11 7315 D14 9003 H1 C301 I5 F304 C6 F311 A9 F318 C11 F325 E13
7305 D13 7316 C14 9004 H1 C303 I5 F305 C7 F312 A9 F319 C12 F326 E9
7306 G12 7350 E13 9005 I1 C304 I6 F306 C8 F313 C10 F320 C13 F327 E10
7307 G13 7351 F12 9006 I1 F300 G4 F307 C9 F314 C10 F321 C14 F328 E10
7308 A12 9000 H1 9007 I1 F301 C5 F308 C9 F315 C14 F322 D11 F329 E10
7309 B12 9001 H1 9301 G14 F302 C5 F309 D10 F316 C15 F323 D11 F330 E10
7 8 9 10
F311
4 1
7300
TCET1101G
3 2
I302
F310 F312 3302 3303
270R 10K
1
5301
CT283D3
3 18
2
3307
F305 5300 F306 F307 F313 F314
17
100MHZ
22R
NFR25
6301
F308
16
SBYV27-200
F338 F309 6303
BYT42M
1 15
3316
6306
F326
14
BYD33D
22R
NFR25
3334
120R
1308
5009 F367 F331 6308
5 13
not used BYD33D 1.25A
PSC
3
12
6309
F363 F366
11 F381
SB360 L
2315
3319 F364
4R7
F365 10n
F362
6 10
F358 2317 F361
2n2
* DISCHARGE POS 2318
BEFORE REPAIRING !
F359 F360
3324 3325
Interconnections:
3M3 3M3
AF page 73 AL page 72
FV page 69 FOME page 78 I/O page 77
7 8 9 10
F331 E9 F342 E6 F349 G3 F356 G6 F363 G9 F370 G13 F377 A12
F332 E11 F343 A15 F350 H2 F357 G5 F364 G10 F371 G13 F378 B15
F333 F13 F344 F3 F351 H3 F358 H8 F365 G10 F372 G14 F379 G3
F338 D8 F345 F4 F352 H3 F359 I8 F366 G10 F373 F14 F380 H6
F339 D6 F346 F4 F353 H4 F360 I9 F367 E8 F374 F13 F381 G9
F340 E5 F347 F5 F354 H5 F361 H9 F368 G11 F375 F13 F382 E11
F341 A15 F348 G2 F355 H6 F362 G9 F369 G11 F376 E14 F385 E10
11 12 13
7308
3328 F377 BC327-25 F387 1309 F388
33R
F389 T100mA
13V
9.4V 19372
3329
I314
I303
2300 47K
12.3V
100n
6316
I315
9V 7309
BC847BW
I316
3 BZX79-B3V9
8.5V
I317
3332
470R
3301
5308 6300 not used
150K
BYD33J
F317 F318 5302 F319 F320
10u
2306
3333 3311 I308
I307
220R 220R 220n
BD438
7304
7305
BC847BW
5303
F322 F323
330n
5306 F324 F325
0u33
5307
4305 -10.8V
-10.6V
5V_STBY 5V_STBY
7350
-10.7V F332 F382
BC337-25
7351
-9.9V
BC857BW
5.2V
I318
3352 I327
4.6V I328
10K 3353
5.2V
4K7
-14.1V
F333
F374 F375
F371 F370
1306
5304 F368 F369
10u
1.6A
7306
PSC
2325
BSH103
or SI2306DS
I310 3320
10n
13.6V 330K
PDTC124EU
AIO1 page 66 AIO2 page 65 DE page 67
VPO page 76 VS page 75
PS page 64
11 12 13
F386 E10 I302 A10 I314 A12 I321 D15
F387 A13 I303 A10 I315 B11 I326 H5
F388 A13 I304 A11 I316 B12 I327 F13
F389 A12 I307 C11 I317 B13 I328 F13
F390 E15 I308 C12 I318 F12 I329 E14
F391 E14 I309 E7 I319 C14 I343 D6
I301 C7 I310 G13 I320 D14 I344 I5
14 15
F341
A
9VA
F343
4303
9VASW
B
F378
4302
14AL
F315 F316
33V
14VM1
14.7V C
14.8V
7316
BC857BW
I319 14.1V
F321
CSW
0.2V
D
7315 0.7V
BC847BW
0.7V
0V 7310
PDTC124EU
9_14VM2
I329 1304 F376 F390
18VNEG E
125mA
MP
HEHI
F
F373
HELO
5V_STBY
5VD
C300
5VA
G
5V_1WSTBY
7307 F372
STBY
0V
H
I
FM ST page 70 FM NIC-page 71
VS_S page 74
PS-8920-12
14 15