Main Board Assembly Removal - Epson LX-300+II RTP Service Manual

EPSON LX-300+II/300+II RTP/1170II

7.1.5 Main Board Assembly Removal

1. Remove the upper housing. (See 7.1.2 "Upper Housing Unit Removal".)
2. Remove the printer mechanism. (See 7.1.3 "Printer Mechanism Removal".)
3. Remove 2 Jack Sockets (Torque 0.29-0.49 N.M.) securing the serial interface
connector to the lower shield plate.
4. Remove the serial interface connector from the installation hole of the lower shield
plate.
5. Remove 3 screws (C.P., Screw, 3x4 F/ZN; Torque 0.48-0.78 N.M.) securing the
parallel interface and USB interface to the lower shield plate.
6. Disconnect the panel FFC from CN12 on the board.
7. Disconnect the harness connected to the Cover Open Switch Assy from CN6 on
the board.
8. Disconnect the harness connected to the Power Supply Board Assembly from
CN8.
Press one edge of CN8 in order to remove or install the harness.
9. Remove 3 screws (C.B.P., Tite, 3x10 F/ZN) securing the main board assembly to
the lower housing.
When the main board assembly is replaced, perform the destination
A D J U S T M E N T
R E Q U I R E D
setting, Bi-D adjustment, top margin adjustment, and bottom margin
adjustment.
LX-300+II RTP DISASSEMBLY AND ASSEMBLY
Serial interface connector
Parallel interface
Jack Socket (Torque 0.29-0.49 N.M.)
connector
C.P., Screw, 3x4 F/ZN
CN6
CN8
Main Board Assembly
Figure7-7. C640MAIN Board Assembly Removal
Revision D
USB interface connector
CN12
C.B.P., Tite, 3x10 F/ZN
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