XR-C8220 Datasheet, PDF (9/14 Pages) Sony Corporation – SERVICE MANUAL

IC301 CXA1946BQ-T6
36
35 34 33 32
31
30 29 28 27 26
25
GAIN12 37
GAIN11 38
IN14 39
IN13 40
IN12 41
IN11 42
IN21 43
IN22 44
IN23 45
IN24 46
GAIN21 47
GAIN22 48
LOUD
VOLUME
8dB STEP
VOLUME
1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
ZCDET
LATCH
LATCH
CONTROL
SHIFT
REGISTER
LOUD
VOLUME
8dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME
1dB STEP
TONE
TONE
FADER
24 FNTO1
23 REO1
22 CE
21 CLK
20 DGND
19 GND
45k
45k
18 VCC
17 VCT
16 DATA
15 TIMER
FADER
14 REO2
13 FNTO2
1
23 4 5
6
7 8 9 10 11
12
IC310, 410 TDA8574 (T)
VCCL 1
INL 2
SVRL 3
BUFFER
BUFFER
VCCL
LIFT
AMP
INML 4
INMR 5
SVRR 6
INR 7
VCCR 8
REFERENCE
VCCL
SIGNAL
AMP
REFERENCE
BUFFER
BUFFER
VCCR
SIGNAL
AMP
VCCR
LIFT
AMP
16 CL+
15 CL–
14 LGND
13 OUTL
12 OUTR
11 RGND
10 CR–
9 CR+
IC350 CXA1846BN-T4
20 19 18 17
16
15
14
13
12
11
–
+
LATCH
8dB STEP
VOLUME
1dB STEP
VOLUME
LATCH
ZC
CONTROL
DET
VCT
BUFFER
SHIFT
REGISTER
+
–
8dB STEP
VOLUME
1dB STEP
VOLUME
12 3 4
5
6
7
8
9
10
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