Oven Lamp Removal; Positive Lock Connector (No-Case Type) Removal; Control Panel Assembly Removal; Graphic Sheet And Membrane Switch Replacement - Sharp R-426LS Service Manual

R426LS
3. Hold the chassis support to the oven cavity front plate and the mag-
netron with the two (2) screws.
4. Reconnect the wire leads to the magnetron. Refer to "PICTORIAL
DIAGRAM".

[6] OVEN LAMP REMOVAL

1. Disconnect the power supply cord and then remove outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the oven lamp.
5. Remove the one (1) screw holding the oven lamp to the magnetron
duct.
6. Remove the oven lamp from the magnetron duct.

[7] POSITIVE LOCK CONNECTOR (NO-CASE TYPE) REMOVAL

1. Disconnect the power supply cord, and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Push the lever of positive lock® connector.
5. Pull down on the positive lock® connector.
CAUTION: WHEN CONNECTING THE POSITIVE LOCK® CONNEC-
TORS TO THE TERMINALS, CONNECT THE POSITIVE
LOCK® SO THAT THE LEVER FACES YOU.

[8] CONTROL PANEL ASSEMBLY REMOVAL

1. Disconnect the power supply cord and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from panel components.

[9] GRAPHIC SHEET AND MEMBRANE SWITCH REPLACEMENT

1. REMOVAL
1. Disconnect the power supply cord and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the control panel assembly, referring to chapter of CON-
TROL PANEL ASSEMBLY REMOVAL.
5. Reinstall outer case and check that the oven is operating properly.
CAUTION: WHEN REPLACING MAGNETRON, BE SURE THE R.F.
GASKET IS IN PLACE AND MOUNTING SCREWS ARE
TIGHTENED SECURELY.
7. Now, the oven lamp is free.
Terminal
Figure C-1. Oven lamp
Positive lock¨
connector
Lever
Figure C-2. Positive lock® connector
5. Straighten the nail holding the control panel assembly to the oven
cavity front plate.
6. Slide the control panel assembly upward and remove it.
7. Now, individual components can be removed.
5. Disconnect the ribbon cable of the membrane switch from the con-
trol unit.
6. Remove the back light PWB from the control panel frame.
7. Remove the four (4) screws holding the control unit to the control
panel frame. And remove the control unit.
8. Tear away the graphic sheet from the control panel frame.
9. Tear away the membrane switch from the control panel frame.
11 – 3
Oven lamp
Terminal
1
Push
2
Pull down