Sony MDR-IF4000 Service Manual page 25

PRINTED WIRING BOARD – RECEIVER SECTION – Suffix-12
1 2
RX BOARD ( SIDE A )
A
32
33
B
48
49
1 16
C
8
RV201
D
VOL
E
MDR-IF4000
: Uses unleaded solder.
3 4
3 1
4 5
12 1
17
16
13 24
64
9
4 1
1 5
5 8
3 4
C301
POWER
1-864-936- 12
(12)
5 6
RX BOARD ( SIDE B )
SIG
+B
BATT BOARD
A
( Page 13 )
( NAT )
( RED )
-R +R
( NAT ) ( RED )
SP001
DRIVER
(R-CH)
SP002
DRIVER
(L-CH)
25 25
7 8
-L +L
( NAT ) ( GRN )
1-864-936- 12
(12)
MDR-IF4000
9 10
+B
SIG
PD2 BOARD
( R-CH REAR SECTION )
SIG
1-864-939- 11
(11)
SIG
+B
PD1 BOARD
+B
( R-CH FRONT SECTION )
1-864-938- 11
(11)
SIG
+B
PD1 BOARD
+B
( L-CH REAR SECTION )
1-864-938- 11
(11)
+B SIG
PD2 BOARD
( L-CH FRONT SECTION )
1-864-939- 11
(11)
• Semiconductor Location
Ref. No. Location
D101 A-3
D102 A-3
D103 A-2
D104 C-3
D401 C-9
D402 C-9
D403 D-9
D404 D-9
D405 B-9
D406 B-9
D407 A-9
D408 A-9
D502 D-3
IC001 B-3
IC101 B-2
IC102 A-3
IC201 C-2
IC301 D-3
IC302 D-2
IC501 D-4
Q101 C-3
Q301 D-3
Q302 D-2