Sharp AR-M550N - Main Charger Section

: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 87
[Main charger section]
A. General
The OPC drum surface is negatively charged in this section.
B. Major parts and signal functions
C. Maintenance and parts replacement
(1) Maintenance and parts replacement
(Replacement parts) a. Main charger unit
1) Remove the front door.
No. Name Operation
1 Screen grid Charges the OPC drum evenly. / Charges the OPC drum.
2
Saw teeth plate Charges the OPC drum.
1
1
2
2
14
13
12
11
10
1
9
8
7
6
5
4
3
2
19
18
17
16
15
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
PCU PWB
MHV
THV
GB
PS-187(RD)
PS-187(YL)
Bias
PS-187(GR)
HV
CN-15
GND2
GND2
/GBPWM
/MHVREM
MHV-T
/THV+PWM
/CHV-PWM
/CHV-REM
/CHVACPWM
/CHVACREM
/DVPWM
/DVREM
HVREM
CN-1
B16B-PH-K-S
(NC)
GND2
GND2
/GBPWM
/MHVREM
MHV-T
/THV+PWM
/CHV-PWM
/CHV-REM
/CHVACPWM
/CHVACREM
/DVPWM
/DVREM
HVREM
+24V1
DSW-F
DSW-F
+24V1
(NC)
THV+REM
THV+REM
GND2
B34B-PHDSS-B
FPS-187(WH)
1
No. Unit Parts
a Main charger unit 1 Screen grid
2 Saw teeth plate
3 MC cleaner
a-1
a
a-2
2) Loosen the blue screw.
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