Viking DMOC205SS, VMOC205SS Component Replacement and Adjustment Procedure, Outer Case Removal

DMOC205SS

VMOC205SS

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

CAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE.

DISCHARGE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING AFTER REMOVING OUTER CASE.

WARNING FOR WIRING

To prevent an electric shock, take the following man-				3) Sharp edge:
ners.				Bottom plate, Oven cavity, Weveguide flange,
1.	Before wiring,			Chassis support and other metallic plate.
	1)	Disconnect the power supply.		4) Movable parts (to prevent a fault)
	2)	Open the door and wedge the door open.		Fan blade, Fan motor, Switch, Switch lever, Open
	3)	Discharge the high voltage capacitor and wait for 60		button.
		seconds.	3.	Do not catch the wire leads in the outer case cabinet.
2.	Don’t let the wire leads touch to the followiong parts;		4.	Insert the positive lock connector certainly until its pin
	1)	High voltage parts:		is locked. And make sure that the wire leads should not
		Magnetron, High voltage transformer, High voltage		come off even if the wire leads is pulled.
		capacitor and High voltage rectifier assembly.	5.	To prevent an error function, connect the wire leads
	2)	Hot parts:		correctly, referring to the Pictorial Diagram.

Convection heater, Oven lamp, Magnetron, High voltage transformer and Oven cavity.

OUTER CASE REMOVAL

To remove the components, procedure as follows.

1.Disconnect oven from power supply.

2.Remove screws from rear and along the side edge of case.

3.Slide the entire case back out about 1 inch (3 cm) to free

it from retaining clips on the cavity face plate.

4. Lift entire case from the unit.

CAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE.

POWER TRANSFORMER REMOVAL

1.Disconnect oven from power supply and remove outer case.

2.Discharge high voltage capacitor.

3.Disconnect filament leads of transformer from the magnetron and capacitor.

4.Disconnect high voltage lead of capacitor from the transformer.

5.Disconnect wire leads from the transformer.

6.Remove two (2) screws holding the transformer to the base cabinet.

Re-install

1.Rest the transformer on the base cabinet with its primary terminals toward rear cabinet.

2.Insert the two edges of the transformer into two metal tabs of the base cabinet.

3.Make sure the transformer is mounted correctly to the corners underneath those tabs.

4.After re-installing the transformer, secure the transformer with two screws to the base cabinet, one is with outer tooth washer and the other is without outer-tooth washer.

5.Re-connect the wire leads (primary and high voltage) and high voltage lead to the transformer and filament leads of transformer to the magnetron and capacitor, referring to the “Pictorial Diagram”.

6.Re-install the outer case and check that the oven is operating properly.

NOTE HOT (ORANGE) WIRE MUST BE CONNECTED TO THE POWER TRANSFORMER TERMINAL NEAREST TO THE TRANSFORMER MOUNTING SCREW.

MAGNETRON REMOVAL

1.Disconnect oven from power supply and remove outer case.

2.Discharge the high voltage capacitor. Disconnect filament lead of transformer from magnetron. Disconnect high voltage wire lead from magnetron.

3.Carefully remove four (4) mounting screws hold the magnetron to waveguide, when removing the screws holding the magnetron to prevent it from falling.

4.Remove the magnetron from the unit with care so the magnetron tube should not hit by any metal object around the tube.

CAUTION: WHEN REPLACING THE MAGNETRON, BE SURE THE R.F. GASKET IS IN PLACE AND THE MAGNETRON MOUNTING SCREWS ARE TIGHTENED SECURELY.

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