JVC KS-LX200R Service Manual page 22

KS-LX200R
UPD784215AGC113 (IC701) : UNIT CPU
1.Pin layout
75 ~ 51
76
100
1 ~ 25
2.Pin function
Pin No. Symbol
1
FF/REW
2
DOLBY
3
MS-OUT
4 F/R
5 HOLD
6 TRAYCNT
7
DIMMER-OUT
8
LCD-POWER
9
VDD
10 X2
11 X1
12 VSS
13
XT2
14
XT1
15
RESET
16
SW1
17 BUS-IN
18 PS2
19
CURUISE
20
RDS-SCK
21
RDS-DA
22
REMOCON
23 AVDD
24 AVREF0
25
NC
26
NC
27
KEY0
28
KEY1
29 KEY2
30 LEVEL
31
SQ
32
S.METER
33
AVSS
34
W-VOL
35 DOT CONT
36 AVREF
37
BUS-SI
38
BUS-SO
39
BUS-SCK
40
STAGE2
41 LCD-DA
42 LCD-CL
43 LCD-LEI
44
BUZZER
45
E2PR-DA-I
46
E2PR-DA-O
47 E2PR-CLK
48 BUS-I/O
49 TM0
50
TM1
1-22
50
26
I/O
O Output for input signal level switching for MS.
O Dolby on "H" output.
O MS output.
I Fwd, REV direction switch signal input.
- Non connect
O Tray light control signal output.
O Dimmer signal output.
- Non connect.
- Power supply terminal.
O Connecting the crystal oscillator for system main clock.
I Connecting the crystal oscillator for system main clock.
- Connect to GND.
O Connecting the crystal oscillator for system sub clock.
I Connecting the crystal oscillator for system sub clock.
I System reset signal input.
I Cassette mechanism detect switch.
I J-BUS signal cut in input.
I Power save 2.
I CRUISE signal input.
I RDS selial clock input.
I RDS data input.
I Remove control signal input.
- Power supply terminal.
- Connect to GND.
- Connect to GND.
- Connect to GND.
I Key control 0 input.
I Key control 1 input.
I Key control 2 input.
I Level meter signal input.
I S.quality level input.
I S.meter level input.
- Connect to GND.
O Woofer volume signal output.
O Dot contrast signal input.
- Power supply terminal.
I/O J-BUS data I/O terminal.
O J-BUS data output.
I/O J-BUS serial clock signal I/O.
I Initial setting.
O Data output for LCD driver.
O Clock otput for LCD driver.
O Chip enable 1 output for LCD driver.
O BUZZER control signal output.
I Data input terminal from EEPROM.
O Data output terminal from EEPROM.
I/O Data input terminal from EEPROM.
I/O J-BUS I/O signal terminal.
O Tray motor negative signal output.
O Tray motor positive signal output.
Function