Ic Block Diagrams; Main Board - Sony XR-C340 Service Manual

• IC Block Diagrams

(MAIN BOARD)

IC301 CXA2509AQ-T4
30 29 28 27 26
120µ/70µ
– +
PBFB2
31
X1
32
PBRIN2
F2
33
PBREF2
PBFIN2 34
VCT 35
VCT
PBGND
36
+
37
PBFIN1
F1
PBREF1 38
X1
PBRIN1 39
PBFB1 40
T1
120µ/70µ
1 2 3 4 5
IC331 LC75373ED
33 32
+
+
–
–
LSELO 34
L4 35
L3 36
L2 37
+
L1 38
–
VDD 39
–
R1 40
+
41
R2
R3 42
R4 43
RSELO 44
–
–
+
+
1 2
25 24 23 22 21
24dB
T2
+ –
NR BIAS
MS
MODE
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
MS ON/
OFF
LPF
+
DETECT
–
F3
24dB
6 7 8 9 10
31 30 29 28 27 26 25
–
+
–
+
–
+
DECODER LATCH
+
–
+
–
+
–
3 4 5 6 7 8 9 10
20 MSMODE
19 DRSW
18 TAPESW
17 INSW
16 NC
15 NC
14 MSOUT
13 DGND
12 MSTC
11 G1FB
24 23
+
–
+
–
SHIFT
CONTROL
REGISTER
–
+
–
+
11
– 18 –
22 LFIN
21 LFOUT
20 LROUT
19 VREF
18
CE
17 DI
16 CL
15 VSS
14 RROUT
13 RFOUT
12
RFIN