JVC KD-S785 Service Manual page 18

KD-S785
UPD784215AGC172 (IC701) : Main micon
1.Pin layout
100 ~ 76
1
~
25
26 ~ 50
2.Pin functions(1/2)
Symbol
Pin No.
SW2
1
SW3
2
SW4
3
REST
4
LM0
5
LM1
6
-
7
ANT CONT
8
VDD
9
X2
10
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16 SW1
17 BUS-INT
18 PS2
19~21 -
22 REMOCON
23 AVDD
24 AVREF0
25 VOL1
26 VOL2
27 KEY0
28 KEY1
29 KEY2
30 LEVEL
-
31
SM
32
AVSS
33
-
34,35
AVREF
36
BUS-SI
37
BUS-SO
38
BUS-SCK
39
BUS-I/O
40
LCD-DA
41
LCD-SCK
42
LCD-CE
43
BUZZER
44
-
45~52
1-18
75
~
51
I/O Function
I CD mecha sw2
I CD mecha sw3
I CD mecha sw4
I Rest sw
O Loading/Eject motor control (Loading side)
O Loading/Eject motor control (Eject side)
- No use
O Antenna remote control
- Maicon power supply
-
-
- GND
-
-
I Reset detection
I CD mecha sw1
I J-BUS int
I Power save 2, H means STOP mode
- No use
I Remocon input
- A/D converter power supply
- A/D reference voltage
I Volume encoder pulse input 1
I Volume encoder pulse input 2
I Key input 0
I Key input 1
I Key input 2
I Level meter input
- No use
I S.METER input
- GND
- No use
-
I J-BUS data input
O J-BUS data output
I/O J-BUS clock input/output
O J-BUS I/O selection output H:output
O Data output for LCD driver
O CLK output for LCD driver
O CE for LCD driver
O Buzzer output
- No use
L:input