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CHECK METHOD
;
POINT
A
STAGE
1) DOOR OPENED
OPEN
—5VDC
2) DOOR CLOSED
CLOSE
Check the state (ON, OFF) of the secondary
Replace secondary
Interlock switch by resistance measurement.
interlock S/W
NRG hes
ee
ae
oe
Se
as
: 20.0ms (50Hz)
If clock does not keep exact time, you must check Diode D8, transistor Q5.
47
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