Sharp MX-M620N

MX-M700N LSU SECTION i – 1
MX-M700N
5GTXKEG/CPWCN

[i] LSU SECTION
1. Electrical and mechanism relation diagram
Code
Signal
name
Name Type Function/Operation NOTE
PGM PGM Polygon mirror (motor) Reflects laser beams at the constant rotation speed
BD BD PWB Detects the laser scan start timing
This device is used to detect a laser trouble
No. Name Function/Operation
1 Laser control PWB Controls laser beam flashing and the output value
2 Cylindrical lens Converges laser beams to focus
3 Incidence reflection mirror Assures the optical path for laser beams
4 No. 1 mirror Assures the optical path for laser beams
5f T lens 1 Deflects laser beams so that the laser scan speeds on the both ends of the drum and that at the center
of the drum are the same
6f T lens 2
7 BD mirror Assures the optical path for laser beams to the BD PWB
8 No. 2 mirror Assures the optical path for laser beams
9 Plane lens Converges laser beams to focus
10 Collective lens for BD Converges laser beams on to the BD PWB
No. Name Code Function/Operation
RW Control signal +5VLD 5V power for laser diode
RW Control signal /READY Polygon mirror motor READY signal ("L" in the constant speed rotation)
RW Control signal /PMCLK Clock signal for driving the polygon mirror motor
RW Control signal /START Polygon mirror motor drive start signal
RW Control signal /VIDEO VIDEO (Image signal)
RW Control signal /SYNC Sync signal (SYNC) from BD, sync signal for 1 line
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
12
11
10
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
12
11
10
12
11
10
13
14
15
16
17
18
13
14
15
16
17
18
4
3
2
1
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BD
PGM
GND2
GND2
+5VLD
GND2
/PMCLK
/READY
/START
+24V1
+24V1
GND2
GND2
VRB
GND2
GND2
GND2
GND2
GND2
GND2
GND2
/LDON
LSU S/H
/SYNC
+5V2
+5V2
CN-22
B30B-PHDSS-B
VIDEO
/VIDEO
GND2
GND2
GND2
GND2
GND2
/LDON
LSU S/H
/SYNC
/VIDEO
VIDEO
GND2
SMP-18V-NC/SMR-18V-N
GND2
GND2
+5VLD
GND2
/PMCLK
/READY
/START
+24V1
+24V1
GND2
GND2
VRB
GND2
+5V2
+5V2
LD PWB
GND2
/SYNC
GND2
/PMCLK
/START
GND2
+24V1
/READY
B6B-PH-K-S
B30B-PHDSS-B
GND2
GND2
+5VLD
GND2
/PMCLK
/READY
/START
+24V1
+24V1
GND2
GND2
VRB
GND2
GND2
GND2
GND2
GND2
GND2
GND2
/LDON
/VIDEO
VIDEO
LSU S/H
/SYNC
+5V2
+5V2
+5V2
LSU UNIT
SMP-12V-NC/SMR-12V-N
TEST
TEST
TEST
(NC)
(NC)
TEST2
TEST3
TEST2
TEST3
TEST3
TEST2
/BRAKE
/BRAKE
CN-2
B4B-PH-K-S
PCU PWB
CN-1
CN-3
CN-6 CN-6
CN-8
CN-8
MOTHER
PWB
MFP
CONTROL
PWB
1
2
3
4
5
6
8
9
10
7