Sharp R771M-006 Manual - Page 14

Browse online or download pdf Manual for TV Sharp R771M-006. Sharp R771M-006 29 pages.

Print Page

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

MONITORED LATCH SWITCH, STOP SWITCH AND MONITOR SWITCH ADJUSTMENT

If the monitored latch switch, stop switch and monitor

switch do not operate properly due to a mis-adjustment,

the following adjustment should be made.

1. CARRY OUT 3D CHECKS.

2. Loosen the two (2) screws holding the latch hook to

the oven cavity front flange.

3. With the door closed, adjust the latch hook by moving

it back and forward or up and down. In and out play

of the door allowed by the latch hook should be less

than 0.5 mm. The horizontal position of the latch

hook should be placed where the monitor switch has

activated with the door closed. The vertical position

of the latch hook should be placed where the

monitored latch switch and stop switch have activated

with the door closed.

4. Secure the screws with washers firmly.

5. Make sure of the monitored latch switch, stop switch

and monitor switch operation. If those switches have

not activated with the door closed, two (2) screw

holding latch hook to oven cavity front flange and

adjust the latch hook position.

After adjustment, make sure of following:

1. In and out play of door remains less than 0.5 mm when

latched position. First check latch hook position,

pushing and pulling the door toward the oven face.

The results (play of the door) should be less than

0.5mm.

2. The contacts (COM-NO) of the monitored latch switch

and stop switch interrupt the circuit before the door

can be opened.

3. The contacts (COM-NC) of the monitor switch close

when the door is opened.

4. Re-install outer case and check for microwave leakage

around the door with an approved microwave survey

meter. (Refer to Microwave Measurement Procedure.)

DOOR

LATCH

HEADS

Figure C-4 Latch Switches Adjustment

771M -

LATCH HOOK

MONITOR SWITCH

MONITORED

LATCH SWITCH

STOP SWITCH

OPEN LEVER