Sony HCD-D890AV Service Manual page 23

IC601 LA2786
BPF1 1
NOISE
FILTER
BPF2 2
VREF 3 V REF
S-CH DC OUT 4
C-CH DC OUT
5
L-CH DC OUT 6
R-CH DC OUT 7
VREF
8
L-IN 9
R-IN
10
V
SS 11
L-BPF1 12
L-BPF2 13
L-BPF3 14
DC CUT 15
DC CUT 16
R RECT 17
L RECT
18
VLR-TH 19
VLR-1 20
VLR-2 21
IC604 TC9210P
V 1
SS
OUT
2
L-CH
DATA
3
L-CH IN
LATCH
CIRCUIT
4
A-GND
NC 5
CS1 6
LEVEL
GND 7
SHIFT
CIRCUIT
CK 8
LPF
NOISE
CH
BALANCE
CONTROL
VR
CONTROL
VR
VR
VCA VCA
VCA VCA
VCA VCA
VCA VCA
LPF
LPF
+
RECT RECT RECT
LOG
DIFF
R-CH
DATA
LATCH
CIRCUIT
SHIFT RESISTER
(13bit)
LEVEL
SHIFT
CIRCUIT
STROBE OSC
CIRCUIT
NOISE
GENERATOR
OSC
DIVIDER
+
RECT
LOG
DIFF
IC901 LA5617
16 V
DD
OUT
15
14
IN R-CH
13
A-GND
12 NC
ERROR
AMP
11 CS2
10 STB
1 2
9 DATA
– 90 –
42 CLK
41
DATA
40 ENABLE
39 OSC1
38 V
CC
37 L-OUT
R-OUT
36
S-OUT
35
34 C-OUT
CMODE-CAP.
33
32 C-TRIM DC CUT
R-BPF1
31
30 R-BPF2
29 R-BPF3
28 DC CUT
27
DC CUT
26 L-R RECT
25 L+R RECT
24 VCS-TH
VCS-1
23
22 VCS-2
CURRENT CURRENT
ON/OFF ON/OFF
LIMITER LIMITER
VMUTE VCC
VREF
VCC
VREF
~ _ 1.8V
3 4 5 6 7
START
CIRCUIT
VREF
OVER HEAT
PROTECT
ERROR
AMP
8 9 10