Read Sharp AR-M256 (serv.man12) Service Manual online
AR-M318/317FP CIRCUIT DIAGRAM / 回路図 3 - 103
8. KEY PWB / キー PWB
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
+
5Vsub
+
5Vsub
+
5Vsub
START
_
LED
COM2
SEG2/
COM1
COM0
SEG3/
BZR
_
PWM/
SCAN4
SCAN3
SEG0/
SCAN1
SCAN0
SCAN2
SEG1/
SENSE0
SENSE1
SENSE2
/START
_
KEY
SCAN0
SCAN1
SCAN2
SCAN3
SENSE3
SCAN4
SEG0/
SEG1/
SEG2/
SEG3/
COM0
COM1
COM2
START
_
LED
BZR
_
PWM/
SENSE0
/START
_
KEY
SENSE1
SENSE2
SENSE3
SENSE4
SENSE4
INFO
_
LED
INFO
_
LED
COPY
FAX
PRN
S-DATA
P-DATA
F-DATA
SCAN
INT
P-ONL
F-COM
STARTLED
INFOLED
STARTKEY
*KEY
7
KEY
4
KEY
1KEY
C
OPYKEY
0KEY
8
KEY
5
KEY
2KEY
P
RNKEY
#KEY
9
KEY
6
KEY
3KEY
S
CANKEY
JOBKEY
U
SERKEY
C
KEY
C
AKEY
FAXKEY
INTKEY
E1:
M
ount
E2:
N
otMount
KEY13
SK
Q
NABD010
1
2
3
KEY20
SK
Q
NABD010
1
2
3
LED2
LTL-1LHG-002A
1
2
KEY2
SK
Q
NABD010
1
2
3
LED8
LTL-1LHG-002A
1
2
KEY4
SK
Q
NABD010
1
2
3
LED12
LTL-1LHG-002A
1
2
R8
150J(1/4w)
LED4
LTL-1LHG-002A
1
2
KEY21
SK
Q
NABD010
1
2
3
KEY22
SK
Q
NABD010
1
2
3
KEY14
SK
Q
NABD010
1
2
3
KEY18
SK
Q
NABD010
1
2
3
R1
510J(1/4w)
KEY6
SK
Q
NABD010
1
2
3
LED3
LTL-1LHG-002A
1
2
KEY10
SK
Q
NABD010
1
2
3
R2
510J(1/4w)
LED5
LTL-1LHG-002A
1
2
KEY5
SK
Q
NABD010
1
2
3
LED13
SLR343ECT
1
2
LED10
LTL-1LHG-002A
1
2
BZ1
PS1720P02
1
2
LED1
LTL-1LHG-002A
1
2
KEY15
SK
Q
NABD010
1
2
3
KEY12
SK
Q
NABD010
1
2
3
R4
130J(1/4w)
KEY11
SK
Q
NABD010
1
2
3
R3
130J(1/4w)
KEY9
SK
Q
NABD010
1
2
3
LED6
LTL-1LHG-002A
1
2
LED9
LTL-1LHG-002A
1
2
R6
130J(1/4w)
R7
1kJ(1/4w)
1
2
KEY7
SK
Q
NABD010
1
2
3
KEY19
SK
Q
NABD010
1
2
3
CN1
IMSA-9619S-24C-TB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
KEY1
SK
Q
NABD010
1
2
3
KEY3
SK
Q
NABD010
1
2
3
R5
130J(1/4w)
LED7
LTL-1LHG-002A
1
2
LED11
LTL-1LHG-002A
1
2
KEY8
SK
Q
NABD010
1
2
3
KEY16
SK
Q
NABD010
1
2
3
KEY17
SK
Q
NABD010
1
2
3
K
E
Y
PWB
(K
E
Y
an
d
LE
D
se
ct
ion)
1/1
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