Read Sony XR-C750 Service Manual online
– 48 –
IC301 CXA1946BQ
IC201 LB1638M
IC231 CXA2511AQ
CONTROL LOGIC
1
2
3
4
5
10
9
8
7
6
N. C.
OUT1
VS
OUT2
N. C.
GND
IN1
VCC
IN2
GND
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
32
33
34
35
36
37
38
39
40
NR
NR
NR BIAS
TAPE/AUX
TAPE EQ
FWD/RVS
MS MODE
NR MODE
DET
10
9
8
7
6
5
4
3
2
1
LPF
VCT
+ -
T2
X1
X1
T1
+ -
F3
VCC
OFF/
B/C
OFF/
B/C
+
-
F1
F2
+
-
120
µ
/70
µ
120
µ
/70
µ
MS ON/
OFF
PBFB2
PBRIN2
PBREF2
PBFIN2
VCT
PBGND
PBFIN1
PBREF1
PBRIN1
PBFB1
PBEQ1
PBOUT1
VCC
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
TCH1
TCL1
G2FB
PBEQ2
PBOUT2
GND
TAPEIN2
AUXIN2
DIREF
LINEOUT2
TCH2
TCL2
MSSW
MSMODE
DRSW
TAPESW
INSW
NRSW
NRMODE
MSOUT
DGND
MSTC
G1FB
+
-
36
35
34 33
31
30
25
26
27
28
29
32
1
2
3
4
5
6
7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
37
38
39
40
41
42
43
44
45
46
47
48
GAIN12
GAIN11
IN11
IN12
IN13
IN14
IN21
IN22
IN23
IN22
IN23
IN24
GAIN21
GAIN22
FNTO1
REO1
REO1
CE
CLK
CLK
DGND
GND
VCC
VCT
DATA
TIMER
REO2
FNTO2
GAIN13
4
LDLC1
LDHC1
INAO1
VRIN1
VOUT1
TIN1
TCLC1
TCLC11
TCLC12
TCO1
FDIN1
GAIN234
LDLC2
LDHC2
INAO2
VRIN2
VOUT2
TIN2
TCHC2
TCLC21
TCLC22
TCO2
FDIN2
LOUD
VOLUME
8dB STEP
VOLUME
1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
TONE
FADER
INPUT SW
LATCH
LATCH
CONTROL
ZCDET
SHIFT
REGISTER
45k
45k
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME
1dB STEP
LOUD
INPUT SW
TONE
FADER
VOLUME
8dB STEP
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