Pioneer CJ-V55 Service Manual page 74

CJ-V55
■ CXD1095Q
I/O controller
• Pin function
Pin Pin name I/O
Function Pin Pin name I/O Function
1 Non connection 34 Non connection
2 Non connection
35 D3
I/O
Data bus for access the RAM and
microcomputer.
3 $5 I Bill validator signal
36 D4
4 UP SW I
VR UP key input from the wired-remote
control.
37 D5
38 D6
5
DOWN
SW
I
VR DOWN key input from the wired-
remote control.
39 D7
40 CLR I Non connection (pull up at the internal)
6 UP 0
Auto VR: Signal for increase the volume.
41 OPEN I
Enable signal of the data transmission and
reception with the microcomputer.
7 do™
0 Auto VR : Signal for decrease the volume.
8
OVER
o
Signal for bill box becomes full. 42 Vss (GND)
9 REJECT
0
Coin box reception prohibition signal.
43 WR
I
Timing signal for access the RAM and
microcomputer.
10 Vss (GND) 44 RD
(SE)
11 PCO
I Input port from the DIP switch.
45 cs
12 PCI
46 A0
I
Address bus for access the RAM and
microcomputer.
13 PC2 47 A1
.14 PC3
48 A2
15 PC4 49 SL1
0 Selection control signal of CDP audio input.
16 PC5
50 SL0
17 PC6
51
Non connection
IF
PD7 52 FULL
nr
Bill validator signal. (Not used)
19
Non connection
53
CANCEL
SW
i
Cancel key input from the wired-remote
control
IF
SEG 'dp'
0 Segment drive signal of the 7-seg LED.
FT
SEG 'g'
FF
DEP •
FT
LED display output signal. "DEPOSIT CASH"
FF
SEG T
55 MAKE 0
LED display output signal.
"MAKE SELECTION"
FF
SEG V
24 SEG 'd'
56 PUSH-
FT
f LED display output signal. "ROTATE MENU"
FF
Vss (GND)
57
(GND)
FF
VDD (+5V)
58
( + 5V)
FF
SEG V
0
Segment drive signal of the 7-seg LED.
59 NUM 0
LED display output signal. Numeric keys.
28 SEG 7/
FF
BHT 0
LED display output signal. "BEST HITS"
29 SEG 'a* 61 CLR
FT
LED display output signal. "CLEAR"
30 DO
I/O
Data bus for access the RAM and
microcomputer.
62 MENU
o
Motor drive signal for rotate the menu
board.
FT
D1
FF
D2
IF
MUTE
FT
Audio mute signal.
33
Non connection 64
S 1 i Bill validator signal.
104