A. PRIMARY INTERLOCK SWITCH TEST
When the door release button is depressed slowly with
the door closed, an audible
click
should be heard at
the same time or successively at intervals. When the
button is released slowly, 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 an 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.
10. INTERLOCK CONTINUITY TEST
WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION
EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS.
TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR PRIMARY SWITCH
TYPE NO. SZM-V 16-FA-62 OR VP-532A-OF FOR MONITOR SWITCH
TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR SECONDARY 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.
-20-
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
O .L
O
O
O .L
O
O .L
Summary of Contents for 721.62342200
Page 10: ...9 B MATRIX CIRCUIT FOR TOUCH KEY BOARD Figure 4...
Page 34: ...33 1001 1000 1004 1002 1006 1007 1005 1003 EV DOOR PARTS...
Page 35: ...34 2000 2002 2001 2006 W106 2004 2381 EV CONTROL PANEL PARTS...
Page 36: ...35 3034 3003 W105 3009 3002 3008 3001 W103 W118 EV OVEN CAVITY PARTS...
Page 37: ...36 W102 4003 5015 4002 4002 4000 EV LATCH BOARD PARTS...
Page 40: ...39 W101 W108 6007 5008 6000 6001 9000 EV BASE PLATE PARTS...
