Sony HCD-J3MD Service Manual page 72

MAIN BOARD (1/2)
IC301 M62428AFP600C
CLK 22
DVDD 23
24
AVDD
OUT2
25
SW19
INBB2
26
BASS BOOST SW
NFBB2
27
FBB2
28
VOL IN2
29
TONE OUT2
30
24k
10k
4.5k
FTRE2
31
SW17-B
22.5k
8.5k
SW17-C
3k
FBAS2
32
SW15-B
SW15-C
1.5k
NFBAS2 33
BASE
AMP2
INBAS2 34
56k
REC OUT2 35
IN2D
36
SW9
BUFFER
IN2C 37
AMP2
SW7
IN2B
38
SW5
IN2A 39
SW3
MIC IN
40
REF
MIC
100k
AMP
41
VREFD
REF
AMP
AGND
42
MAIN BOARD (1/2)
IC931 M62016L
COM
+
INTERRUPT SIGNAL
– GENERATING BLOCK
COM
+
RESET SIGNAL
– GENERATING BLOCK
2 3
1
GND INT RESET
72
MICROCOMPUTER
INTERFACE
FIN
FIN
AMP2
AMP1
VR2 VR1
TONE TONE
AMP2 AMP1
10k
MIX
AMP2
34.7k 34.7k
B
A
45.8k
SW11
19k
SW13
AVCD
51k
51k
AGND
4 5
CD VCC
SW18
BASS BOOST SW
24k
10k
4.5k
SW16-B
22.5k
8.5k
SW16-C
3k
SW14-B
SW14-C
1.5k
BASE
AMP1
10k
56k
MIX
AMP1
SW8
BUFFER
AMP1
SW6
B
A
SW4
45.8k
SW10
19k
SW2
SW13
SURROUND SW
SW1
MAIN BOARD (1/2)
IC302 MC14052BF
2X0 1
21 DARA
2X2 2
20 LATCH
2XCOM 3
19
DGND
2X3 4
2X1 5
OUT 1
18
6
INH
INBEE1
17
VEE 7
NFBB1
16
VSS
8
FBB1
15
VOL IN 1
14
TONE OUT 1
13
FTRE1
12
FBAS1
11
10 NFBAS1
9 INBAS1
8 REC OUT1
IN1D
7
6 IN1C
IN1B
5
4 IN1A
SUR C
3
42 2
SUR R
VREF1
1
16 VDD
15 X2
14 X1
13 XCOM
12 X0
11 X3
10 A
9 B