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KD-S790
4.10 UPD178078GF-594 (IC701) : System CPU
• Pin layout
81
~
100
• Pin function
Pin No.
Symbol
1~8
NC
9
VOL-DA
10
VOL-CLK
11
NC
12
LCD-DA
13
LCD-CLK
14,15
NC
16
LCD-CE
17
SW2
18
PSW
19
LED RED
20
LED BLUE
21
VOL-1
22
VOL-2
23
KEY0
24
KEY1
25
KEY2
26
LEVEL
27
AVDD
28
SM
29
NC
30
DOOR SW
31
NC
32
AVSS
33
REGCPU
34
VDD
35
REGOSC
36
37
38
GND0
39
SD/ST
40
GND2
41
NC
42
IFC
43
VDDPLL
44
OSC INPUT
45
NC
46
GNDPLL
47
AM E.OUT
1-40 (No.49788)
80
~
51
50
~
31
1
~
30
I/O
-
No use
I/O VOL IC communication line
O
VOL IC communication line
-
No use
O
LCD driver communication line
O
LCD driver communication line
-
No use
O
LCD driver communication line
I
CD mechanism switch
I
CD mechanism switch
O
Red led lighting control
O
Blue led lighting control
I
Encoder input
I
Encoder input
I
Key input
I
Key input
I
Key input
I
Audio level input
-
Power supply
I
Signal level meter input
-
No use
I
Door open switch
-
No use
-
Ground
-
---
-
Power supply
-
---
X2
-
System clock
X1
I
System clock
-
Ground
I
Station detector & Stereo indicator
-
Ground
-
No use
I
IF count input
-
Power supply
I
FM, AM OSC input
-
No use
-
Ground
O
PLL error output for AM
Function
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