JVC KD-S747 Service Manual page 40

KD-S747
4.11 UPD784215AGC224 (IC701) : CPU
• Pin Layout
• Pin function
Pin No. Symbol
1~2 no use
3 SW2
4 PSW
5 LM
6 MOTOR SEL
7~8 no use
9 VDD
10 X2
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16 SW1
17 no use
18 PS2
19~22 no use
23 AVDD
24 AVREF0
25 VOLÇP
26 VOLÇQ
27 KEY0
28 KEY1
29 KEY2
30 LEVEL
31 no use
32 SM
33 AVSS
34~35 no use
36 AVREF
37~40 no use
41 LCD-DA
42 LCD-SCK
43 LCD-CE
44 no use
45 E2PROM-DI
46 E2PROM-DO
1-40 (No.49822)
75 ~ 51
1 ~ 25
I/O
O output L
I CD mecha SW2
I CD mecha Position Setting SW
O loading motor control output
O Loading/feed motor selecting output
O output L
maicon power supply
- GND
I SYSTEM RESET
I CD mecha sw1
O output L
I power save2, H means STOP mode
O output L
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
I Input
I S DMETER input
- GND
O output L
O output L
O data output for LCD driver
O CLK output for LCD driver
O CE for LCD driver
O output L
I I2C data input
O I2C data output
function