2
A
B
C
D
E
F
G
H
I
J
1
3
4
5
7
RX-V557/HTR-5850/DSP-AX557
RX-V457/HTR-5840/DSP-AX457
6
66
POWER (2) P.C.B. (Side A)
■
PRINTED CIRCUIT BOARD (Foil side)
Lead Free Solder Used
POWER (1) P.C.B. (Side A)
Ref. No.
Location
D301
D4
D302
C4
D312
J3
D313
H3
IC301
E5
IC302
I5
IC303
I5
IC304
H5
IC305
G5
IC306
H5
Q301
D4
Q302
C4
Q303
E4
Q304
B4
Q305
C4
Q306
D4
Q307
C4
Q308
E4
Q309
B4
Q310
C4
Q311
D3
Q312
C3
Q313
E3
Q314
B3
Q315
C3
Q323
D4
Q325
D4
Q327
D3
• Semiconductor Location
FUNCTION
(CB308)
MAIN (1)
(W8)
MAIN (1)
(CB6)
SBL
SBR
FL
SL
C
FR
SR
E
E
E
E
E
E
FUNCTION
(CB307)
+3D
E
DG
DG
+5D
+5
-5
+12
-12
HPG
CONVERSION
(CB706)
-B2
+B2
DG
DG
E
+B1
PRV
NFSR
VSR
NFFR
VFR
NFC
VC
-12AMP
+8V
MAIN (1)
(CB5)
MAIN (1)
(W15)
Power Transformer
NFSL
VSL
NFFL
VFL
NFSBR
VSBR
E
-8V
PR
V
THM
SBR_PRO
TP363
TP362
TP361
TP360
TP359
TP358
SBR_PRI
IC305
C343
RX-V457/HTR-5840/DSP-AX457
Circuit No.
RX-V557/HTR-5850/DSP-AX557
RX-V457/HTR-5840/DSP-AX457
C343
X
O
IC305
X
O
R362
X
O
W352
X
O
X : NOT USED / O : USED