JVC KD-S717 Service Manual page 2

Description of major IC
QQ
UPD178078GF-544 (IC701) : System CPU
3 7 63 1515 0
1.Pin layout
81
~
100
2.Pin function (1/2)
Pin
NO.
1
2
3
4
5
6,7
8
9
10
11
12
13
14
15
16
17
18
TE
L 13942296513
19
20
21
22
23
24
25
26
27
28
29
30,31
32
33
34
35
36
37
38
39
40
41
www
42
43
44
.
45
http://www.xiaoyu163.com
80 ~ 51
50
~
31
1 ~ 30
Symbol I/O
NC -
BUSINT I
BUSSI I
BUSSO O
JBUS-SCK O
NC -
I2CDAI I
I2CDAO O
I2CCLK O
NC -
LCDDA O
LCDSCK O
BUSI/O O
NC -
LCDCE O
SW2 I
SW3 I
SW4 I
RSTSW I
ENC1 I
ENC2 I
KEY0 I
KEY1 I
KEY2 I
LEVEL I
AVDD -
SM I
SQ I
NC -
AVSS -
REGCPU -
VDD -
REGOSC -
X2 -
X1 I
GND0 -
SD/ST I
GND2 -
NC -
IFC I
VDDPLL -
x ao
y
OSC I
i
NC -
http://www.xiaoyu163.com
8
FUNCTION
Non connection
JVC bus communication line
JVC bus communication line
JVC bus communication line
JVC bus communication line
Non connection
Serial data input
Serial data output
Serial clock output
Non connection
LCD driver serial data output
LCD driver serial clock output
JVC bus output select
Non connection
LCD driver communication line
CD mech switch
CD mech switch
Q Q
3 6 7 1 3
CD mech switch
Traverse mech rest switch
Encoder input
Encoder input
Key input
Key input
Key input
Audio level input
Power supply
Signal level meter input
Signal quality input
Non connection
Connect to GND
Connect to GND with capacitor
Power supply
Connect to GND with capacitor
System clock
System clock
Connect to GND
Station detector & Stereo indicator
Connect to GND
Non connection
IF count input
---
u163
FM,AM osc input
.
Non connection
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9