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1.5
Step
1
If the READY relay does not pull in, check to see if there is +24VDC
present at J3-3 on the lower torque 2285 amplifier. If not correct,
determine the fault and correct.
2
Verify that all cables going to the lower torque 2285 amplifier card and
READY relay are not damaged and are correctly plugged in.
3
Verify that the time delay relay contacts on K2, in the power supply, are
closing approximately 3 seconds after power up. If not, re-adjust or
replace relay.
4
Verify that the collector of Q3 on the 2293 CPU/Main Logic card goes
low when READY is commanded. If the signal is present, replace the
lower torque 2285 card or READY relay. If the signal is not present,
the problem could be with either the 2293 CPU/Main Logic card or the
2267 keypad card. Repair or replace as necessary.
CHRISTIE INC. - - 35/70 Service/PM Manual
CHRISTIE INC.
July, 1997
READY DIAGNOSTIC TABLE
READY relay does not activate or READY LED does not go on.
Table 7.8: READY Diagnostic Table (Continued)
7 : T r o u b l e s h o o t i n g G u i d e
Diagnostic
Result
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