High Voltage Capacitor; High Voltage Diode - Samsung M735 Service Manual

Alignment and Adjustments

5-3 High Voltage Capacitor

1. Check continuity of the capacitor with meter set at the highest ohm scale.
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then
indicates 10MW.
3. A shorted capacitor will show continuous continuity.
4. An open capacitor will show constant 10MW.
5. Resistance between each terminal and chassis should read infinite.

5-4 High Voltage Diode

1. Isolate the diode from the circuit by disconnecting its leads.
2. With the ohm-meter set at the highest resistance scale, measure the resistance across the diode
terminals. Reverse the meter leads and read the resistance. A meter with 6V, 9V or higher voltage
batteries should be used to check the front-to back resistance of the diode, otherwise an infinite
resistance may be read in both directions. The resistance of a normal diode will be infinite in one
direction and several hundred KW in the other direction.
5-5 Adjustment of Primary Switch, Secondary Switch and Monitor Switch
For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure to use the
correct part number for the following switches.: Primary and secondary interlock switches and the interlock monitor switch all
together. Then follow the adjustment procedures below. After repair and adjustment, be sure to check the continuity of all
interlock switches and the interlock monitor switch.
1. When mounting Primary switch and
Interlock Monitor switch to Latch Body,
consult the figure below.
2. NOTE: No specific adjustment during
installation of Primary switch and Monitor
switch to the latch body is necessary.
3. When mounting the Latch Body to the oven
assembly, adjust to the Latch Body by
moving it so that the oven door will not have
any play. Check for play in the door by
pulling the door assembly. Make sure that
the latch keys move smoothly after
adjustment is completed. Completely tighten
the screws holding the Latch Body to the
oven assembly.
4. Reconnect to Monitor switch and check the
continuity of the monitor circuit and all latch
switches again by following the components
test procedures.
5. Confirm that the gap between the switch
housing and the switch actuator is no more
than 0.5mm when door is closed.
5-2
Precaution
Body Latch
Primary switch
Monitor switch (COM-NC)
Monitor switch (COM-NO)
Secondary switch
Primary Interlock Switch
Interlock
Monitor
Switch
Lever Door
SECONDARY
Switch
Door Open Door Closed
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