Tuesday, February 03, 2015

HOW TO REMOVE POWER and CONTROL Circuit board - GOLDSTAR MV1614W - MICROWAVE OVEN

Removing the Power and Control Circuit Board - Out case - Door Interlock Switch - Magnatron
HOW TO REMOVE THE POWER CONTROL
* Remove a screw securing the control panel assembly to the oven cavity.
* Remove the control panel with pushing it upward.
* Remove the connector (CN1) and wire leads (Relay6) from the circuit board.
* Remove 2 screws securing the circuit board.
* Remove the FPC connector from the terminal socket following “HOW TO REMOVE THE FPC CONNECTOR”.
* Remove the circuit board from the control bracket carefully.
HOW TO REMOVE THE FPC CONNECTOR
> Hold the edges of the plastic fastener with thumb and forefinger.
>> Lift up the lever of the plastic fastener from the terminal socket by lightly pressing the lever end with forefinger.
>>> Remove the FPC. connector from the terminal socket.
HOW TO INSERT THE FPC CONNECTOR
# Insert the F.P.C. connector into the terminal socket securely with the fingers.
# Hold the plastic fastener with thumb and forefinger of the other hand, and push it slowly into the terminal socket.
NOTE
: When reconnecting the F.P.C connector make sure that the holes on the F.P.C. connector are properly engaged with the hooks on the plastic fastener
# Lock the level of the plastic fastener into the hook of the terminal socket securely by releasing the fingers.
HOW TO REMOVE THE OUT-CASE
* Remove the vent grille by removing two screws securing it to the out case.
* Remove two screws securing it to the front bracket.
* Remove two screws securing it to the air duct.
* Remove the mounting plate by turning the two screws securing it to the out case.
* Remove the base plate by removing six screws securing it to the out case. Remove the Mount, All from the out case by removing two screws securing it to the out case and one screw securing it to the ventilation motor ASS'Y and cavity.
* Remove the power cord cover from out case by removing a screw.
* Remove the power cord to the inner of the out case with turning power cord and remove the out case with pushing it back.
REMOVING THE DOOR INTER-LOCK SWITCH
1. Disconnect the wire leads from the interlock switches.
2. Remove two screws securing the Latch Board.
3. Make necessary replacements and check microwave energy leakage.
MAGNATRON REMOVAL
A. Remove vertgrille.
B. Remove mount all.
C. Remove out case.
D. Disconnect the wire leads.
E. Remove the 3 screws and Magnetron very carefully.
> When removing the magnetron, make sure that its dome does not hit any adjacent parts, or it may be damaged.
> When replacing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition.
> After replacing the magnetron, check for microwave energy leakage with a survey meter Check microwave energy leakage must be below the limit of 5 mW/cm2
. (All service adjustments should be made for minimum microwave energy leakage readings.)
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