Sharp MX-6500N / MX-7500N (serv.man24) Service Manual ▷ View online
MX-7500N DISASSEMBLY AND ASSEMBLY 10 – 33
7)
Remove the screw, and open the high voltage MC PWB
mounting plate downward.
mounting plate downward.
8)
Remove the screw, and open the MFP mother mounting unit
upward. Hang the support plate on the machine frame.
upward. Hang the support plate on the machine frame.
9)
Remove the screw, and remove the flywheel.
10) Disconnect the connector, and remove snap band.
11) Disconnect the connector. Open the clamp, and set the har-
ness free.
12) Remove the screw, and pull out the main drive unit (BK).
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MX-7500N DISASSEMBLY AND ASSEMBLY 10 – 34
13) Disconnect the connector. Remove the screw, and pull out the
main drive unit (CL).
(5)
Toner transport drive unit
1)
Remove the upper cabinet rear cover, and the rear cabinet.
2)
Remove the screw, and open the high voltage MC PWB
mounting plate downward.
mounting plate downward.
3)
Remove the screw, and open the MFP mother mounting unit
upward. Hang the support plate on the machine frame.
upward. Hang the support plate on the machine frame.
4)
Disconnect the connector, and remove the clamp. Remove the
screw, and remove the HL-TC1 PWB mounting plate.
screw, and remove the HL-TC1 PWB mounting plate.
5)
Disconnect the connector. Remove the screw, and remove the
toner transport drive unit.
toner transport drive unit.
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MX-7500N DISASSEMBLY AND ASSEMBLY 10 – 35
R. PWB section
*1: Described in LSU section.
(1)
HL control PWB, High voltage 1TC PWB
1)
Remove the upper cabinet rear cover, and the rear cabinet.
2)
Remove the screw, and open the high voltage MC PWB
mounting plate downward.
mounting plate downward.
3)
Remove the screw, and open the MFP mother mounting unit
upward. Hang the support plate on the machine frame.
upward. Hang the support plate on the machine frame.
4)
Disconnect the connector. Remove the screw, and remove the
HL control PWB.
HL control PWB.
5)
Disconnect the connector. Remove the screw, and remove the
high voltage 1TC PWB.
high voltage 1TC PWB.
No.
Name
1
HL control PWB / High voltage 1TC PWB
2
SCN Mother PWB
3
High voltage MC / DV PWB
4
LCHM Drive 1/2 PWB / High voltage 2TC PWB
5
SUB AC POWER PWB / DC POWER PWB
6
SUB DC POWER PWB
7
AC POWER PWB
8
PCU PWB
9
Driver PWB
10
MFP control PWB / HDD
11
LSU control PWB / LSU Driver PWB *1
12
DFS PWB / CIS PWB
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MX-7500N DISASSEMBLY AND ASSEMBLY 10 – 36
(2)
SCN Mother PWB
1)
Remove the upper cabinet rear cover, and the rear cabinet.
2)
Remove the screw, and open the high voltage MC PWB
mounting plate downward.
mounting plate downward.
3)
Remove the screw, and open the MFP mother mounting unit
upward. Hang the support plate on the machine frame.
upward. Hang the support plate on the machine frame.
4)
Remove the screw, and remove the plate.
5)
Disconnect the connector, and remove the screw. Disconnect
the connector, and remove the SCN Mother PWB.
the connector, and remove the SCN Mother PWB.
CAUTION: Since the MFP control PWB and the SCN Mother PWB
are connected in board to board, be careful when disas-
sembling and assembling.
sembling and assembling.
(3)
High voltage MC PWB
1)
Remove the rear cabinet.
2)
Disconnect the connector. Remove the screw, and remove the
high voltage MC PWB.
high voltage MC PWB.
(4)
LCHM Drive 1/2 PWB / High voltage 2TC PWB
1)
Remove the upper cabinet rear cover, and the rear cabinet.
2)
Remove the screw, and open the high voltage MC PWB
mounting plate downward.
mounting plate downward.
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