Pcb Main - Muratec MFX-2050 Field Engineering Manual

PCB MAIN

1) Remove the Cover connect and disconnect the connector. (See page 5-6)
2) Remove two Cover option mounting screw, and then remove the Cover option.
3) Remove four Cover shield mounting screw, and then remove the Cover shield.
4) Disconnect the connector on the PCB NGP. (See page 5-20)
5) Remove four PCB NGP mounting screws as shown below. (See page 5-20)
6) Remove the Plate main B mounting screws, and then remove the Plate main B.
Cover shield
7) Release the Spacer, and then PCB NGP. (See page 5-20)
8) Disconnect all connectors on the PCB MAIN.
9) Remove six PCB MAIN mounting screws, and then remove PCB MAIN.
Note: The DRAM back-up battery is connected to the PCB MAIN. When the PCB MAIN and PCB Connect B are
disconnected, the back-up will be lost.
Note: Turning parameters for Color(R,G,B) and Gray mode are stored in the EEPROM(IC42). When the PCB MAIN is
replaced, the EEPROM on malfunction PCB should be replaced to the new PCB.
CCD
P19
P8C
P8C
Plate main B
PANEL NCU
P5
P3 PSU
P91
P92
5-21
Cover option
PCB MAIN