Sony STR-V7700 Service Manual page 16

IC105 M62427FP-A
64 63 62 61
65
KEY IN2
–
66
BPF OUT
+
67
BPF IN
NC8 68
IN 2B 69
70
NC9
IN 2A 71
72
AVSS
73
AGND
74
IN 1A
75
NC1
76
IN 1B
NC2 77
DELAY IN 78
+
–
DELAY OUT
79
KEY IN1 80
3
1 2 4
IC850 µPC1237HA
OVER LOAD DET
OFFSET DET
LATCH/
AUTORESET
1 2 3
IC6002 M65850P
14 13 12 11
OSCILLATOR
D/A
1/2 VCC
CLOCK DO1
MO
AUTO
MAIN
RESET
RESET
CONTROL
MI
D1 DO0
A/D
LPF1
1 2 3 4 5
60 59 58 57 56 55
54 53
SBAND GRAPHIC EQUALIZER
+
–
– –
+ +
+
–
SBAND GRAPHIC EQUALIZER
5 6 7 11
8 9 10 12
F/F
AC OFF
DET
4 5 6
10 9 8
LPF2
20KBIT
SRAM
6 7
52 46
51 50 49 48 47 45
+
–
+
–
–
+
–
+
–
+
13 14 15 16 17 18 19 20
V ON
CC
MUTE
V
CC
7 8
IC6003 M65847FP
A/D
RESET
D/A
1 3 4 5
2
– 32 –
44 43
42 41
40
BB22
39
BUF IN1
38
BUF OUT1
37 NC5
36 AVDD
+
–
35
DGND
34 LATCH
U-CON
33
INTER DATA
FACE
32 CLOCK
31
DVDD
30 PORT C
–
+
29
PORT B
28 PORT A
BUFOUT1
27
26 BUFIN1
25 BB21
23 24
21 22
– – –
LPF1 HPF LPF2
REF REF REF
CLOCK
RAM
GENERATOR
REF
LOGIC
6 7 8 9 10 11 12
–
MIX
REF
13 14