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JVC KS-F345 Service Manual page 17

Cassette receiver
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4.2 LC72362N-9B40 (IC701) : Micon
3 7 63 1515 0
• Pin layout
• Pin functions
Pin No.
Symbol
1
XIN
2
GND
3
J BUS SI
4
J BUS SO
5
J BUS SCK
6
J BUS I/O SEL
7
NC
8
LCD SO
9
LCD SCK
10
LCD CE
11
NC
12
E.VOL SO
13
E.VOL SCK
14
CE
15
TUNER ILLUM
TE
L 13942296513
16
TAPE ILLUM
17
CD ILLUM
18
DIMMEROUT
19
NC
20
NC
21
NC
22
NC
23
NC
24
NC
25
KS1
26
KS0
27
K3
28
K2
29
K1
30
K0
31
Vdd
32
TEST
33
NC
34
SEEK/STOP
35
MONO
www
36
R/T
37
NC
38
POWER CNT
.
39
NC
40
NC
41
IF CONT
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24 - 1
25
80
40
64
41 - 64
I/O
Function
I Crystal oscillator
- To GND
I Bus serial data input from CP751
O Bus serial data output to CP751
O Bus serial clock output to CP751
O BUS I/O switch signal output
- Non connect
O Serial data output to IC651
O Serial clock output to IC651
O Chip enable output to IC651
- Non connect
O Serial data output
O Serial clock output
O Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
O Initializing output port
I Initializing input port
I Initializing input port
- Non connect
I Initializing input port
- Power supply
I Test iput
- Non connect
O Output the "If signal request"
O Monaural and stereo change
over output
- Non connect
x
- Non connect
ao
y
O Power control output
i
- Power supply
- Non connect
- IFC control
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8
Pin No.
Symbol
42
43
44
45
46
47
48
TAPE IN
49
F/R SENCE
50
TAPE MUTE
51
SD/ST
52
53
DETACH
54
55
J BUS INT
Q Q
3
6 7
1 3
56
REMOCON
57
FM/AM
58
DOLBY
59
60
MUTE
61
MEMORY DET
62
LEVEL METER
63
SMETER
64
KEY 2
65
KEY 1
66
KEY 0
67
ACCDET
68
69
70
FM/AM IF COUNT - AM/FM Frequency detection
71
72
73
74
AM OSC
75
FM OSC
u163
76
77
.
78
79
TEST 1
80
XOUT
2 9
9 4
2 8
I/O
Function
NC
- Non connect
NC
- Non connect
NC
- Non connect
NC
- Non connect
NC
- Non connect
NC
- Non connect
I H:RADIO L:TAPE
I FORWARD/REVERSE
detector
I DIR.FF/REW.MUTE
I Station detector and ST input
NC
- Non connect
I Detection of Front Panel
NC
- Non connect
- Non connect
1 5
0 5
8
2 9
9 4
- TO GND
I Change over the FM/AM iuput
- Non connect
NC
- Non connect
- The mute time is controlled by
the connected capacitor when
changing over the FM/AM
I Memory detector input
I Non connect
I Signal meter input
I Momentary key input
I Momentary key input
I Momentary key input
I ACC DET
SENS
- To GND
NC
- Non connect
NC
- Non connect
NC
- Non connect
Vdd
- Power supply
- Non connect
m
I Input the local oscillator signal of
FM
co
Vss
- Connect to GND
NC
O Non connect
EO
O PLL Error signal output
- To GND
O Crystal oscillator
KS-F345
9 9
switch
2 8
9 9
(No.49783)1-17

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