Sony XR-C8220R Service Manual page 39

QQ
3 7 63 1515 0
IC250 CXA2510AQ-T4
30 29
–
PBFB1 31
PBRIN1 32
F2
33
PBREF1
PBFIN1 34
VCT 35
VCT
PBGND 36
PBFIN2 37
F1
PBREF2 38
PBRIN2 39
PBFB2 40
1 2
TE
L 13942296513
IC301 CXA1946BQ-T6
36 35 34
LOUD
GAIN12 37
GAIN11 38
IN14 39
IN13 40
IN12 41
IN11 42
ZCDET
IN21 43
IN22 44
IN23 45
IN24 46
GAIN21 47
GAIN22 48
www
LOUD
1 2
.
http://www.xiaoyu163.com
28 27 26 25 24
120µ/
70µ
T2
+ –
+
NR BIAS
X1
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
+
LPF
+
–
F3
X1
OFF/B
T1
120µ/
NR
70µ
3 4 5 6 7 8 9 10
33 32 31
VOLUME VOLUME
8dB STEP 1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
LATCH
LATCH
CONTROL
SHIFT
REGISTER
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME VOLUME
8dB STEP 1dB STEP
x ao
y
3 4 5 6
i
http://www.xiaoyu163.com
8
23 22 21
NR
20 MSMODE
MS
19 DRSW
MODE
18 TAPESW
17 INSW
NR
16 NRSW
MODE
15 NC
MS ON/
OFF
DETECT
14
MSOUT
13 DGND
12 MSTC
11 FF
Q Q
3 6 7 1 3
30 29 28 27 26 25
24 FNTO1
TONE FADER
23 REO1
22 CE
21 CLK
20 DGND
19 GND
45k
45k
18 VCC
17 VCT
16 DATA
15 TIMER
14 REO2
TONE FADER
13 FNTO2
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7 8 9 10 11 12
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2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9