Cassette Car Stereo Service Manual

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• IC Block Diagrams
IC1 BU2624F-E2
1
2
3
4
5
6
7
8
9
10
20
19
18
15
14
13
12
11
16
20BIT COUNT
IF COUNT
CONTROL
SHIFT
REGISTER
LATCH
MAIN
COUNT
PRESCALLER
I/O
CONTROL
REFERENCE
DIVIDER
PHASE
DETECT
17
XOUT
XIN
CE
CK
DA
CD
P0
P1
P3
P4
PD2
SD
IF2
IF1
P2
FMIN
AMIN
VSS
PD1
VDD
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
DECODER LATCH
SHIFT
REGISTER
CONTROL
–
+
+
–
1
2 3
4
5 6 7 8 9
10
20
19
18
17
16
15
14
13
12
11
21
22
2324
25
2627282930313233
34
35
36
37
38
39
40
41
42
43
44
LSELO
L4
L3
L2
L1
VDD
R1
R2
R3
R4
RSELO
RVRIN
RCOM
RT1 RT2 RT3
RTOUT
RSIN
RS1 RS2 RS3
RSOUT
RFIN
RFOUT
RROUT
VSS
CL
DI
CE
VREF
LROUT
LFOUT
LFIN
LSOUT
LS3 LS2 LS1 LSIN LTOUT LT3 LT2 LT1 LCOM LVRIN
IC361 MM1322XFBE
1
2
3
4
5
6
7
8
OUT2
VS
OUT1
GND
IN1
VCC
IN2
GND
CONTROL CIRCUIT
IC651 RN5VD23AA-TL
1
2 3
4
5
+
–
VREF
CD NC
OUT
VDD
G
ND
IC161 LC75373ED