A. PRIMARY INTERLOCK SWITCH TEST
When the door is opened slowly, an audible
click
should be heard at the same time or successively
at intervals and the latches should activate the
switches with an audible
click.
If the latches do not activate the switches when
the door is closed, the switches should be a
adjusted in accordance with the adjustment
procedure. Disconnect the wire lead from the
primary switch. Connect the ohmmeter leads to
the common (COM) and normally open (NO)
terminal of the switch. The meter should indicate
an open circuit in the door open condition.
When the door is closed, the meter should
indicate a closed circuit.
When the primary switch operation is abnormal,
make the necessary adjustment or replace the
switch only with the same type of switch.
B. SECONDARY INTERLOCK SWITCH TEST
Disconnect the wire lead from the secondary
switch.
Connect the ohmmeter leads to the common
(COM) and normally open (NO) terminals of the
switch. The meter should indicate a open circuit in
the door open condition. When the door is closed,
meter should indicate an closed circuit. When the
secondary switch operation is abnormal, make the
necessary adjustment or replace the switch only
with the same type of switch.
C. MONITOR SWITCH TEST
Disconnect the wire lead from the monitor switch.
Connect the ohmmeter leads to the common
(COM) and normally closed (NC) terminals of the
switch. The meter should indicate closed circuit in
the door open condition. When the door is closed,
meter should indicate an open circuit. When the
monitor switch operation is abnormal, replace with
the same type of switch.
NOTE: After repairing the door or the interlock
system, it is necessary to do this continuity
test before operating the oven.
5-7
WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION
EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS.
ALL THESE SWITCHES MUST BE REPLACED AT THE SAME TIME.
TYPE NO. SZM-V 15-FA-63 OR VP-533A-OF FOR PRIMARY SWITCH
TYPE NO. SZM-V 16-FA-62, VP-532A-OF OR V-5220Q FOR MONITOR SWITCH
TYPE NO. SZM-V 16-FA-63, VP-533A-OF OR V-5230Q FOR SECONDARY SWITCH
COMPONENTS
TEST PROCEDURE
RESULTS
SWITCHES
Check for continuity of the
Door
Door
(Wire leads removed)
switch with an Ohm-meter
open
closed
Primary
Switch
Monitor
Switch
Secondary
Switch
NOTE : After checking for the continuity of switches, make sure that they are
connected correctly.
NO
COM
NC
COM
NO
COM
INTERLOCK CONTINUITY TEST
Summary of Contents for NN-S432BL
Page 27: ...6 2 13213A 13552A 15006A 13581A 13536A 14026A 14970A 13352A 13720D DOOR PARTS ...
Page 28: ...6 3 24781M 26638A 23572A 268711 WTT028 CONTROLLER PARTS ...
Page 29: ...6 4 33052A 948502 36549S WTP013 33390G WTT020 WTT010 WSZ185 33112U 35889A OVEN CAVITY PARTS ...
Page 30: ...6 5 WSZ085 466002 466003 466001 44510A 43500A LATCH BOARD PARTS ...
Page 32: ...6 7 WTT021 63303A 63302A 56170D WSZ002 948503 WTT028 647781 BASE PLATE PARTS ...
Page 33: ...8 2 PRINTED CIRCUIT BOARD ...
