JVC KS-FX270, Руководство по обслуживанию

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KS-FX270
1-20
I/O
LC72366-9985 (IC701) : SYSTEM CPU
Symbol Function Pin No.
XIN
GND
J-BUS SI
J-BUS SO
J-BUS SCK
J-BUS I/O
NC
LCD SO
LCD SCK
LCD CE
DIMMER IN
EVOL SO
EVOL SCK
NC
TUNER ILLUM
TAPE ILLUM
CD ILLUM
DEMERIT
NC
OPEN
NC
NC
NC
NC
KS1
KS0
K3
K2
K1
K0
Vdd
TEST
FF/REW MODE
SEEK/STOP
MONO
RADIO/TAPE
BEEP LEVEL
PWR-CNT
ACC
KICK
I
-
I
O
O
O
-
O
O
O
-
O
O
-
-
-
-
-
-
-
-
-
-
-
-
O
I
I
-
I
-
I
O
O
O
-
-
O
-
-
Crystal oscillator input port
Connect to GND
Data input for J-BUS information
Data output for J-BUS information
Clock output for J-BUS information
Switching signal output for J-BUS information I/O, H:Out L:In
None connection
Data output for LCD driver
Information clock output for LCD driver data
Chip enable output for LCD driver
None connection
Data output for electrical volume
Clock output for electrical volume information
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Diode matrix output port for initial establishing
Diode matrix output port for initial establishing
Diode matrix output port for initial establishing
Non connection
Diode matrix output port for initial establishing
5V power supply port (+B)
Turn on all light indicator of LCD, L: All light a LED indicator
FF/REW mode select signal output
H:Auto seek, L: Stop Use both as IF count REQ and Seek/Stop
Forced monaural output port, H:Turn on Forced monaural
Non connection
Non connection
"H" : Turn on power
Non connection
Non connection
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1. Pin layout
2. Pin function
24 ~ 1
41 ~ 64
25
40
~
80
65
~