JVC KD-SX947R, Service Manual

Page: 50 / 79

KD-SX947R
1-50 (No.49818)
4.23 UPD784215AGC221 (IC701) : CPU
• Pin Layout
• Pin function
1
~
25
75
~
51
100 ~ 76
26 ~ 50
Pin No. Symbol I/O function
1 RESET O Reset output for CD sub-micon
2 CD MUTE I Muting request of CD sub-micon
3~8 NC - No use
9 VDD - Micon power supply
10 X2 - No use
11 X1 - No use
12 VSS - GND
13 XT2 - No use
14 XT1 - No use
15 RESET I System reset
16 CDREQ I CD request from CD sub-micon
17 BUS-INT I J-BUS int
18 PS2 I Power save2 H:STOP mode
19 NC - Not use
20 RDSSCK I RDS clock input
21 RDSDA I RDS data input
22 REMOCON I Remocon input
23 AVDD - A/D converter power supply
24 AVREF0 - A/D reference voltage
25 VOL1 I Volume encoder pulse input 1
26 VOL2 I Volume encoder pulse input 2
27 KEY0 I Key input 0
28 KEY1 I Key input 1
29 KEY2 I Key input 2
30 LEVEL I Level meter input
31 SQ I S.quality level input
32 SM I S.METER input
33 AVSS - GND
34,35 NC - No use
36 AVREF - Reference voltage
37 BUS-SI I J-BUS data input
38 BUS-SO O J-BUS data output
39 BUS-SCK I/O J-BUS clock input/output
40 BUS-SI/SO O J-BUS I/O selection Output:H Input:L
41 LCDDA O Data output for LCD driv er
42 LCDCK O CLK output for LCD driv er
43 LCDCE O CE for LCD driv er
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