JVC KS-FX222 Servise Manual page 17

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4.2 LC72362N-9B39 (IC701) : Micon 3 7 63 1515 0
• Pin layout
• Pin functions
Pin
Symbol
No.
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
TE
L 13942296513
15 TUNER ILLUM
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
42 NC
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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
- Chip enable output
- 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
- Non connect
x ao
y
O Power control output
- Non connect
i
- Non connect
- Non connect
- Non connect
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8
Pin
Symbol
No.
43 NC
44 NC
45 NC
46 NC
47 NC
48 TAPE IN
49 F/R SENCE
50 TAPE MUTE
51 SD/ST
52 NC
53 DETACH
54 NC
55 J BUS INT
Q Q
3 6 7 1 3
56 REMOCON
57 FM/AM
58 DOLBY
59 NC
60 MUTE
61 MEMORY DET
62 LEVEL METER
63 SMETER
64 KEY 2
65 KEY 1
66 KEY 0
67 ACCDET
68 SENS
69 NC
70 FM/AM IF COUNT - AM/FM Frequency detection
71 NC
72 NC
73 Vdd
74 AM OSC
75 FM OSC
76 Vss
u163
77 NC
.
78 EO
79 TEST 1
80 XOUT
2 9 9 4 2 8
I/O Function
- Non connect
- Non connect
- Non connect
- Non connect
- Non connect
I H:RADIO L:TAPE
I FORWARD/REVERSE switch de-
tector
I DIR.FF/REW.MUTE
I Station detector and ST input
- Non connect
I Detection of Front Panel
- Non connect
I BUS interruption signal detection
communication
1 5 0 5 8 2 9 9 4
- TO GND
I Change over the FM/AM iuput
- Non connect
- Non connect
- The mute time is controlled by the
connected
I Memory detector input
I -----
I Signal meter input
I Momentary key input
I Momentary key input
I Momentary key input
I ACC DET
- To GND
I Non connect
- Non connect
- Non connect
I Power supply
I Input the local oscillator signal of
AM
- Input the local oscillator signal of
m
FM
- Power supply
co
- Non connect
- PLL Error signal output
O To GND
O Crystal oscillator
KS-FX222
9 9
2 8 9 9
(No.49772)1-17