JVC KS-FX711 Service Manual page 26

KS-FX711/KS-FX511
QQ
3 7 63 1515 0
LC72366-9A74 (IC701) : Micro controller
1. Pin layout
24 ~ 1
25
40
41 ~ 64
2. Pin function
Pin No. Symbol
1
XIN
2 GND
3 J-BUS SI
4
J-BUS SO
5
J-BUS SCK
6
J-BUS I/O
7
NC
8 LCD SO
9 LCD SCK
10
LCD CE
11
DIMMER IN
12
EVOL SO
13 EVOL SCK
14 NC
15
TUNER ILLUM
TE
L 13942296513
16
TAPE ILLUM
17
CD ILLUM
18
DIMMER OUT
19 NC
20 OPEN
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
FF/REW MODE
34
SEEK/STOP
35
MONO
36 RADIO/TAPE
37
BEEP LEVEL
www
38
PWR-CNT
39
ACC
40
KICK
1-26
http://www.xiaoyu163.com
80
65
I/O
I Crystal oscillator input port
- Connect to GND
I Data input for J-BUS information
O Data output for J-BUS information
O Clock output for J-BUS information
O Switching signal output for J-BUS information I/O, H:Out L:In
- None connection
O Data output for LCD driver
O Information clock output for LCD driver data
O Chip enable output for LCD driver
- None connection
O Data output for electrical volume
O 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
O Diode matrix output port for initial establishing
I Diode matrix output port for initial establishing
I Diode matrix output port for initial establishing
- Non connection
I Diode matrix output port for initial establishing
- 5V power supply port (+B)
I Turn on all light indicator of LCD, L: All light a LED indicator
O FF/REW mode select signal output
O H:Auto seek, L: Stop Use both as IF count REQ and Seek/Stop
O Forced monaural output port, H:Turn on Forced monaural
- Non connection
- Non connection
O "H" : Turn on power
- x Non connection ao
y
- Non connection
. i
http://www.xiaoyu163.com
8
Function
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9