JVC KD-S790 Service Manual page 40

KD-S790
QQ
4.10 UPD178078GF-594 (IC701) : System CPU 3 7 63 1515 0
• 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
TE
L 13942296513
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 X2
37 X1
38 GND0
39 SD/ST
40 GND2
41 NC
42 IFC
www
43 VDDPLL
44 OSC INPUT
45 NC
46 GNDPLL
47 AM E.OUT
1-40 (No.49788)
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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
- ---
- System clock
I System clock
- Ground
I Station detector & Stereo indicator
- Ground
- No use
I IF count input
- Power supply
x ao
y
I FM, AM OSC input
. i
- No use
- Ground
O PLL error output for AM
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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