Sony STR-DE235, Service Manual

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IC301 LV1018
IC401 LC78212
IC701, 702 µPC2581V
VSS CLK
D
ATA
ENABLE
LS-DC CUT LS-DC CUT
DC CUT
-IN
VCC
L-IN
R-IN S-IN
AC-GND
NR-C2
FCL-IN
FCR-IN
FCLS-IN
FCRS-IN
DELA
Y
-OUT
DELA
Y
-IN
CR-IN CR-OUT LC-INE LC-INB RS-DC CUT RS-DC CUT AGND DC-OUT IREF DET LPF L-OUT R-OUT LS-OUT RS-OUT VDD A/D NS D/A
1 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 21
22 23 24 25 37 36 35 40 41 42 39 38 34 33 32 31 30 29 28 27 26
LS
TRIM
FILTER
B-NR
VDD
PCM
DATA
DECODER
OSC
PCM
CONTROL
8K-SRAM
FILTER
VOLUME
FILTER
R-STEREO
RS
TRIM
+
–
+
+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN IN
OUT
IN
OUT
IN
2
3 5 4 6
7
9 8 1
MUTE
+ VOUT1 – VOUT1
COMP1
MF1
IN1
GND
IN2
NF2
COMP2
– VOUT2 + VOUT2
VCC1 VCC2
VEE
PROTECTOR
BIAS CIRCUIT
REG DRIVE
PRE
DRIVE
11 10
12 13
15 14
DRIVE
PRE
DRIVE