Read Sharp R-891M Service Manual online
11
891M -
1. Disconnect oven from power supply and remove outer case.
2. Discharge high voltage capacitor.
3. Remove the control panel assembly from the oven, referring to "CONTROL PANEL ASSEMBLY REMOVAL".
4. Remove the five (5) screws holding the display unit and the power unit to the control panel frame.
5. Remove the display unit and the power unit from the control panel frame.
6. Remove the solder holding the tab (near capacitor C11) of LCD vessel to the printed wiring board.
7. Make the four (4) tabs of LCD vessel straight.
8. Release the LCD vessel from the printed wiring board.
9. Now, the two (2) lamps LMP1 and LMP2 can be found.
10. Remove the solder holding the lamps LMP1 and LMP2 to the printed wiring board.
11. Now, the lamps LMP1 and LMP2 are free.
DISPLAY UNIT LAMPS REMOVAL
Back side view of display unit
LCD
vessel
tab
vessel
tab
IC2
IC1
C11
LCD
vessel
tab
vessel
tab
TOUCH CONTROL ASSEMBLY
NOTE: The CPU/Display unit is not suitable for service repair for individual components. However by referring to this page
the back light lamp can only be repaired.
Click on the first or last page to see other R-891M service manuals if exist.