A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
RX-V557/HTR-5850/DSP-AX557
RX-V457/HTR-5840/DSP-AX457
75
■
PRINTED CIRCUIT BOARD (Foil side)
RX-V457/HTR-5840/DSP-AX457
Ref. No.
Location
D451
F3
D452
F3
D453
G3
D454
G3
D455
G3
D456
G4
D457
G3
D458
G3
D459
G2
IC451
G4
IC452
B2
IC453
G2
Q451
B3
Q452
G3
Q453
H4
Q455
H4
Q456
H6
Q457
H6
Q458
C2
Q459
C3
• Semiconductor Location
SUBTRANS (2) P.C.B. (Side A)
DTFD
CKFD
CEFD
ADKEY1
ADKEY0/MOD0
VRB
VRA
TONEB
TONEA
ISB
ISA
/BLK
/PURD
REM
/PSW
RM-
RM+
+5M
+5S
MG
VP
DSP
(CB1)
XM
(CB24)
XMWCK
XMSD0
DG
DRXM
ICXM
XMSCK
DTPWR
XMMCK
MG
DTXM
PRV
1
24
12
13
XMSD0
XMSCK
XMWCK
XMMCK
DG
/CSDIR
/CSTI
MUTETI
/CSD
A
C
SCK
SDD
SDM
/ICDIR
/ICTI
/TIB
USY
/SPIRD
Y
/INTDIR
/INTDSP
/VR
VIB
VIA
MON
VSEL
+12
AXV
VE
LC
THM
PLDET
PRD
PRV
PRI
MAIN (1)
(W10)
YCSEP
VSY
SVID0
/VR
VIB
VIA
MON
VSEL
-5
+5
+12
CPNTT
CPNTD
DTCV
CKCV
CMP1
CMP0
/PR
O
-5V
+5V
VIDEO
(CB851)
J model
CPNTT
CPNTD
DTCV
CKCV
TUNER
/ST
PDET
MG
VP
+5M
S10
/RES
PR
V
-40ohm
YST
MAR
Y
MBR
Y
ER
Y
SBR
Y
PR
Y
MTFS
SWE
SW
TMT
TE
COMP
+5B
TE
SCKP
CEP
TUNED
TUR
TUL
+12B
SDRP
SDTP
FUNCTION
(CB303)
VE
-5
+5
AXV
+12
-12
/HP
MTHP
MTFS
MTCT
MTSW
MTZ2
CKEV
DTEV
CKZ2
DTZ2
MG
TUR
TE
TUL
OPERA
T
ION (1)
(CB801)
MAIN (2)
(CB122)
U, C models
SUBTRANS (6)
(CB901)
SUBTRANS (3)
(CB601)
SUBTRANS (4)
(CB701)
U, C, R, T, K, A, B, G, E, L models
SUBTRANS (2) P.C.B. (Side B) Lead Free Solder Used
100
1
30
31
50
51
80
81
1
24
12
13
U model
U model