Audio Board; Panel Board - Sony HCD-GRX9900 Service Manual

– AUDIO Board –
IC602 µPC1330HA
COMPARATER
2 4
1 3
SW P1 CONT GND
SW R1 GND
– PANEL Board –
IC603 BA3830F
REFERENCE
R02 1
CURRENT
REFERENCE
R01 2
CURRENT
LINE NF 3
LINE IN 4
–
+
REC NF 5
REC IN 6
–
+
RESET C 7
8
BIAS C
GND
9
IC711 M65850FP
14 13 12 11
OSCILLATOR
D/A
1/2 VCC
CLOCK DO1
MO
AUTO
MAIN
RESET
RESET
CONTROL
MI
D1
DO0
A/D
LPF1
2 3 5
1 4
INVERTER
6
5 7 8 9
VCC SW P2 GND
SW R2
RESET
RESET 18
F01
17
16 F02
BAND
15 F03
PASS
14 F04
FILTER
13
F05
DET
12 F06
11 REC LEVEL
10 VCC
10 9 8
LPF2
20KBIT
SRAM
6 7
IC604 NJU3716M-T2
24 23 22 21 20
CONTROL
CIRCUIT
SHIFT REGISTER
LATCH CIRCUIT
OUTPUT CIRCUIT
6 7 8 9 10 11
1 2 3 4 5
– 68 –
19 18 17 16 15 14 13
12