JVC CH-X1500 Service Manual page 42

CH-X1500
4.12 UPD784217AGC209 (IC501) : System micon
• Pin layout
• Pin functions
Pin No Symbol
1 NC
2 DAC SEL
3,4 NC
5 MP3 SEL
6 SHOCK SEL
7 STAGE1
8 STAGE2
9 VDD1
10 X2
11 X1
12 GND
13 XT2
14 XT1
15 RESET
16 REMOCON
17 B.DET
18 P.DET
19 BUS INT
20 MP3 REQ
21 NC
22 EJECT
23 VDD0
24 AVDD
25 IOP
26~29 KEY0~3
30 TEMP IN
31 L SENSOR
32 NC
33 GND
34 ADCONT
35 V CONT
36 VREF
37 EPROMDI
38 EPROMDO
39 EPROMCK
40 LCD CE
41 LCD DA
42 LCD CK
43 NC
44 BUS I/O
45 BUS SI
46 BUS SO
1-42
75 ~ 51
1 ~ 25
I/O
O Non connect
I DAC presence mode
- Non connect
I MP3 presence mode
I H:shock detection 1 L:shock detection 2
I LCD/AD key/Rimocon invalid select L:invalid
I Initial setting port
- Connect to 5V
O Oscillator output(12.5MHz)
I Oscillator input(12.5MHz)
- GND
O Open
I Connect to GND
I Reset input
I Remocon signal input
I Buck up power supply detection
I Main power off detection
I JVC BUS communication start interrupu input
I CD MP3 request input
- Non connect
I Eject key input
- Connect to 5V
- Connect to AD CONT(power supply for A/D converter)
I Pickup IOP measurement input
I Key input 0 ~ 3 (8bit A/D input)
I Temp. detection input
I Linear senser input (8bit A/D input)
I Non connect (connect to GND)
- GND for A/D converter
O Out put H at power ON stop mode:L
O Position motor voltage control analog output
- Reference voltage for A/D converter
I EEPROM data input
O EEPROM data output
I/O EEPROM clock inpt/output
O CE output for LCD driver
O Data output for LCD driver
O Clock output for LCD driver
O Non connect
O JVC BUS input/output control
I JVC BUS data input
O JVC BUS data output
Function