Sony XR-C8220 Service Manual page 34

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