How To Change A Pcb; Main Pcb - JEM AF-2 Service Manual

How To Change A PCB:

REFER TO SCHEMATICS / DIAGRAMS IN THE APPENDIX FOR MORE DETAILS

Main PCB

1. DISCONNECT FROM MAINS SUPPLY.
2. Move to a flat position and remove BOTTOM COVER.
3. Remove the 2 screws that hold the PCB to the chassis.
4. Disconnect the MAIN PCB WIRING LOOMS from the MAIN PCB (Note orientation before
removal).
5. The MAIN PCB is mounted on 2 mounting posts which need to be squeezed to remove the
PCB.
6. Remove the PCB.
Refitting
7. Mount the PCB on the mounting posts
8. Replace the 2 screws that hold the PCB to the CHASSIS.
9. Reconnect the MAIN PCB WIRING LOOMS (Observe polarity).
10. Check the operation of the unit.
11. Refit the TOP COVER.
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