Sony PFM-500A3WE Service Manual page 172

1
(1/4) 9
(1/4) 8
(1/4) 6
(1/4) 5
(1/4) 3
(1/4) 1
R302
390K
1/2W
2
R304
390K
1/2W
(1/4) 2
3
(1/4) 7
D307
1SS355
Q305
2SK1590
VOLTAGE DET
Q300
2SK1590
VOLTAGE DET
4
C317 C300
R352 R305
0.22 470k 0.01 330k
(1/4) 10
(1/4) 4
D300
HZS7.5NB2
HZU7.5B2
5
A B
APS-136 M (3/4)
R324
10
1/4W
C307
47
50V
Q302 Q303
2SD1862
2SB1240
R306 R311
BUFF BUFF
390K 390K
1/2W
1/2W
R321
470
1/4W
R307 R312 R313 R314
D304
R316
390K 390K 3.3k 1.3k
HRU0103
3.6k
1/2W 1/2W
C309
0.1
R318
22k
C306
1000p
C304
C310
150p
47
50V
R317
1M
D303
HZU7.5B2
1
16
GND OUT
2 PK LMT Vcc 15
R325
22k
3 CA OUT CT
14
4 I SS
SENSE 13
5 MULT OUT
12
Rset R328
4.7k
6 IAC V
11
SENSE
7 VA OUT ENA
10 R327
22k
V(rms) Vref
8 9
R319 IC300 R326 C311
150k 0.1
220k TK83854
PFC CONT
R309
100k
Q301
R315
2SA1037AK R322
10k
BUFF 1k
C305 R320
R323 D305
1000p 4.7k
10k 1SS355
D302 C303
R310 C302 D301
C301
22k 0.47 HRU HRU 470p
0.1
0103 0103
C308
0.1 RV300
2.2k
PFC ADJ.
C
APS-136 M (3/4)
+B
R349
22
1/4W
R329 R344
470k
270k
1/2W
1/2W
F
R339 R345
470k
270k
1/2W
1/2W
F
R340
1k
D306
1SS355
Q304
2SA1037AK
+B R351
BUFF
4.7k
C316
R347
0.1
330
8 7 6 5
V+
V-
R348
1 2 3 4 10k
IC301
BA10393F
COMP
R341
510
IC302
TA76431AS
SHUNT REG
R342 R343 C312 C313 C314 C350 R346 C315
10k 15k 0.047 1200p 0.1 150p 5.1k 0.1
CH CH F/D
9-38 9-38
D E
1 16
R503
240 Rcs GND
2 15
Ccs ST
R500 3 14
Cs RT
1
100
R510
1/4W 10k
4 13
V IN CT
R507
22k
R511
RT
5 ON/OFF 2 12
3.3k
6 OVP 11
Vref
7 OUT1 OUT2 10
V E Vc
8 9
IC500
CXA8038AP
VS CONT
R512
1k
C514
C503 R502 C504 R504 C505 C506 C509 C510 C513
1000p 10k 330p 75 470p 47 0.1 0.22 0.1 330p
CH
F/D 50V
T702
Q702
D700 2SK2370
R709
1SS355
4.7
R706
4.7k
Q700 C711 R714
2SB624 1000p 22k
C707
470p
R701
C700
C701 47
1
22
1/4W
420V Q703
450V
D701 R710 2SK2370
1SS355
4.7
R707
C702
4.7k
0.1 Q701 C712 R715
2SB624 1000p 22k
C708
470p
0.05
R704
1 16
47
Rcs GND
F/D
2 15
Ccs ST
R711
10k
R700 3 14
Cs RT
1
100
+B
1/4W
4
13
V IN CT
R708
22k
R713
RT
5 ON/OFF 2 12
3.3k
6 OVP Vref 11
OUT1 OUT2
7 10
V E Vc
8 9 IC700
CXA8038AP
VA CONT
R712
1k
C713 C714
R703 C704 R705 C705 C706 C709 C710
C703
0.1 330p
1000p 0.1 0.22
1000p 10k 1000p 330 47
CH
F/D 50V
PFM-500A3WE/500A3WG/500A3WU/510A2WE/510A2WG/510A2WU
F G
11 (1/4)
12 (1/4)
14 (1/4)
PH500
PC123
D504
+12V
1SS355
4 1
52 (4/4)
3 2 53 (4/4)
R516 R517
24k
10k
13 (1/4)
PH501
PC123
4 1 54 (4/4)
3 2
55 (4/4)
PH502
PC123
+12V
4 1
56 (4/4)
2
3 57 (4/4)
R400
4.7k
39 (2/4)
C515
C516
4700p 0.1
RV500
10k
f. MAIN ADJ.
T701
58 (4/4)
11
Q700-Q703
VA MAIN SWITCHING
59 (4/4)
4 15
C716
0.018
1250V
R716
C717
0.018
2W
1250V
7 13
60 (4/4)
PH700
PC123
+12V
4 1 61 (4/4)
D704
1SS355
3 2
62 (4/4)
R717 R718
39k 10k
PH701
PC123
4 1 63 (4/4)
3 2
64 (4/4)
PH702
PC123
+12V
4 1 65 (4/4)
2
3 66 (4/4)
R600
4.7k
40 (2/4)
C715 C718
0.22 RV700 0.1
APS-136
10k
M
(3/4)
f. MAIN ADJ.
(SWITCHING REGULATOR)
B-SS9694J-M-P3.EPS
H