JVC KS-FX845R Service Manual page 28

4.6 UPD784215AGC226 (IC701) : Main micon
• Pin layout & Block diagram
100
1
25
26
• Pin function
Pin No. Symbol
1 TAPE IN
2 STAND BY
3 to 8 no use
9 VDD
10 X2
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16 Steering
17 BUS-INT
18 PS2
19 no use
20 RDS-SCK
21 RDS DA
22 REMOCON
23 AVDD
24 AVREF0
25 VOL,1
26 VOL,2
27 KEY0
28 KEY1
29 KEY2
30 LEVEL
31 SQ
32 SM
33 AVSS
34,35 no use
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 no use
45 E2PROM-DI
46 E2PROM-DO
47 E2PROM-CLK
48 OPEN
49,50 no use
1-28 (No.49873)
76
75
51
50
I/O Function
I Cassette tape inside signal H:Inside L:Outside
I Stand-by position detection signal input H:Loading L:Eject side
- Not used
Micon power supply
GND
I System reset
I Steering remocon input
I J-BUS INT
I Power save2 H means STOP mode
- Not used
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 used
I J-BUS data input
O J-BUS data output
I/O J-BUS clock input/output
O J-BUS selection output;Hinput L
O Data output for LCD driver
O CLK output for LCD driver
O CE for LCD driver
- Not used
I I2C data input
O I2C data output
O I2C clock output
I DOOR OPEN SW
- Not used