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D-W320V
1. System u-COM IC701 (MN1872423 KEN)
Pin description.
PIN NO.
TERMINAL NAME
1~7
7~1G
8
VDD
9
P/N I
10
P/N O
11
M/A
12
POWER
13
C-BUSY
14
CLOCK
15
C-DATA
16
M-DATA
17
RESET
18
TR+
19
TR-
20, 21
AVSS
22
PU IN
23
UP SW
24
TRSW2
24, 25
TRSW2, 1
26~28
KEY3~1
29
AVDD
30
AVREF
31, 32
XT1, 2
33
VSS
34
X1
35
X2
36
WRQ
37
COIN
38
IFL
39
IFS
40
IFD
41
CQCK
42
SQOUT
43
RWC
44
M-BUSY
45
SBUSY
46
SDATA
47
REMOCON
48
VPP
49
SP CONT
50
SL-
51
SL+
52
VDD
53
FLAT
54
SHARP
55
MATURAL
56
C-RESET
57
M-MUTE
58
S-MUTE
59
NC
60
DRF
61~70
P16~7
71
VLOAD
72~77
P6~P1
78~80
10~8G
4
CIRCUIT DESCRIPTION
I/O
O
FL grid drive
–
VDD +5V
O
PAL/NTSC INPUT H : PAL
I
PAL/NTSC OUTPUT H : PAL
O
PAL/NTSC MANUAL/AUTO SELECT H : MANUAL
O
POWER ON / OFF H : ON
O
VIDEO CD DATA STATUS H : BUSY
I
VIDEO CD DATA CLOCK
–
DATA SIGNAL to MPEG BOARD
–
DATA SIGNAL from MPEG BOARD
–
HARD RESET
–
TRAY MOTOR CONTROL H : OPEN
–
TRAY MOTOR CONTROL H : CLOSE
–
GND
–
PICK UP LOCATION L : INSIDE
–
MECHA POSITION L : DISC1 & UP
–
DISC2 TRAY SW L : CLOSE H : OPEN
I
DISC2 TRAY SW L : CLOSE H : OPEN
I
KEY INPUT
–
AVDD +5V
–
AVREF +5V
–
NC
–
GND
–
X-TAL IN 4.19 MHz
–
X-TAL OUT 4.19 MHz
I
WRITE REQUEST
O
COMMAND DATA TO CD DSP
O
KARAOKE IC DATA
O
KARAOKE IC CLOCK
O
KARAOKE IC LATCH
O
CLOCK TO CD DSP
I
SQ DATA FROM CD DSP
O
READ/WRITE CONTROL
O
MAIN MICOM STATUS H : BUSY
I/O
SYSTEM CONTROL DATA
I/O
SYSTEM CONTROL STATUS
I
REMOCON INPUT
–
GND
O
TRAY MOTOR SPEED CONTROL H : HIGH SPEED
O
SLED MOTOR REVERSE
O
SLED MOTOR FORWARD
–
VDD +5V
O
KEY CON LED NATURAL H : ON
O
KEY CON LED SHARP H : ON
O
KEY CON LED FLAT : H : ON
O
CD DSP, MPEG BOARD, MPEG MICOM RESET
O
MIC MUTE L : ON
O
SYSTEM MUTE L : ON
O
NOT USED
I
CD FOCUS OK SIG. H : OK
O
FL SEGMENT DRIVE
–
VLOAD - 32V
O
FL SEGMENT DRIVE
O
FL GRID DRIVE
FUNCTION
ACT
–
–
H
H
H
H
H
H/L
H/L
H/L
L
H
H
–
L
L
–
A/D
A/D
–
–
–
–
–
–
H
H/L
H/L
H/L
H
H/L
H/L
H
H
H/L
H
L
–
H
H
H
–
H
H
H
H
L
L
L
H
–
–
–
–
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