B_Reg Assy - Pioneer SC-27 Service Manual

1

10.34 B_REG ASSY

CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
A
REPLACE WITH SAME TYPE NO. 491.500 MFD. BY LITTELFUSE INC. FOR P7300 AND P7301.
B
Y
GND 2
JP7401
C
D
E
F
X
154
1
2
+BB
(+70V)
!
CN7308
+B
1
-B 3
CKS-556--
!
(-70V)
-BB
XBERR
+B
(+64V)
(-64V)
-B
2
3
H7300
Q7308
2SD1857(QR)
R7370
NM
!
!
R7371
NM
Q7307
2SB1236(QR)
H7301
D7352
R7390
2SA1602A(EF)
Q7310
100
1SS352
D7355
1SS352
GND
SC-27
3
4
POWER SUPPLY FOR POW
! FU62
H7302
1 1
REK1154-A
(10A/125V)
C7372
R7380
!
C7306
0.1u/50
YB
R7384
47k
C7374
NM
C7373
R7381
!
R7385
47k
C7375
NM
!
FU61
H7303
1 1
REK1154-A
(10A/125V)
R7394
0
R7391
Q7309
2SC4154(EFG)
4.7k
4
NM
R7378
47k 4.7k
C7376
1000p/50
CH
C7378
1000p/50
CH R7318
47k
(2125)
NM
47k
R7379
4.7k
C7377 R7319
1000p/50
47k
CH
(2125)
C7379
1000p/50
CH
BTEMPERR
R
!