TM 5-3610-259-14
Table 2-4. ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9.
EXPOSURE LAMP DOES NOT OPERATE IN ANY MODE - Cent
(1) If voltage correct, proceed to step 3.
(2) If voltage missing, proceed to step 4.
Step 3.
Check fuses F3 and F4 on 3kW power supply circuit board.
(a) If fuses are good, replace autoformer (paragraph 2-16.20).
(b) Replace defective fuse(s).
Step 4.
Check continuity of glass frame proximity switch (PX2) as follows:
(a) Remove two mounting screws for control panel.
(b) Carefully lift control panel from lip to gain access to
terminal board on chassis.
(c) Disconnect one of two wires going to control panel from
terminal board.
(d) With glass frame locked in horizontal position, check continuity
across two terminals.
(e) Reconnect wire.
(1) If continuity present, proceed to step 5.
(2) If continuity not present, replace glass frame proximity
switch (PX2) (paragraph 2-16.1).
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