Diagrams - Sony XR-4800 Service Manual

• IC Block Diagrams – MAIN Board –
IC301 CXA2509AQ-T4
30 29 28 27 26
120µ/70µ
– +
PBFB2 31
X1
PBRIN2 32
F2
33
PBREF2
34
PBFIN2
VCT 35
VCT
PBGND
36
+
PBFIN1 37
F1
PBREF1 38
X1
PBRIN1
39
PBFB1 40
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
+
R2 41
R3 42
R4 43
RSELO 44
–
–
+
+
2
1
SECTION 6

DIAGRAMS

25 24 23 22 21
24dB
T2
+ –
NR BIAS
MS
MODE
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
LPF
+
DETECT
–
F3
T1
24dB
6 7 8 9 10
31 30 29 28 27 26
–
+
–
+
–
+
DECODER
+
–
+
–
+
–
3 4 5 6 7 8
IC351 MM1322XFBE
20 MSMODE
19 DRSW
18 TAPESW
17 INSW
16 NC
15 NC
MS ON/
OFF
14
MSOUT
13 DGND
12 MSTC
11 G1FB
25 24 23
SHIFT
LATCH CONTROL
REGISTER
9 10 11
– 19 –
GND 1
2
IN2
VCC 3
4
IN1
22 LFIN
+
21 LFOUT
–
+
20 LROUT
–
19 VREF
18 CE
17
DI
16 CL
15
VSS
–
14 RROUT
+
–
13 RFOUT
+
12 RFIN
8 OUT2
7
VS
6 OUT1
5
GND