JVC KS-FX945R Service Manual page 34

6.12UPD784215AGC209 (IC701) : CPU
• Pin layout
75
76
100
1
• Pin function
Pin No Symbol
1 TAPE IN
2 STAND BY
3 to 8 NC
9 VDD
10 X2
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16 Steering
17 BUS-INT
18 PS2
19 NC
20 RDS-SCK
21 RDS DA
22 REMOCON
23 AVDD
24 AVREF0
25 VOL1
26 VOL2
27 KEY0
28 KEY1
29 KEY2
30 LEVEL
31 NC
32 SM
33 AVSS
34,35 NC
36 AVREF
37 BUS-SI
38 BUS-SO
39 BUS-SCK
40 BUS-I/O
41 LCD-DA
42 LCD-SCK
43 LCD-CE
44 BUZZER
45 E2PROM-DI
46 E2PROM-DA
1-34 (No.49875)
51
50
26
25
I/O
I Cassette tape inside signal H:Inside L:Outside
I Stand-by position detection signal input H:Loading L:Eject side
- Not use
- Micon power supply
- GND
I System reset
I Steering remocon input
I J-BUS INT
I Power save2 H means STOP mode
- Not use
I RDS clock input
I RDS data input
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
I S.Quality level input
I S.METER input
- GND
- Not 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:HÅEinput:L
O Data output for LCD driver
O CLK output for LCD driver
O CE for LCD driver
O BEEP signal output
I I2C data input
I/O E.VOL I2C data input/output
Function