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Troubleshooting
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7.5 Troubleshooting for malfunction
7.5.1 No Power
7.5.2 The Projection Lamp does not Light Up
Check Item Remedy
Has the Power Switch (S1) been
turned ON?
→
No Turn on the Power Switch (S1).
↓
Yes
Has the Power Cord been securely
connected to the machine?
→
No Plug in the power cord.
↓
Yes
Has the Power Cord been securely
plugged into the outlet?
→
No Plug the power cord into the power
outlet.
↓
Yes
Is the Fuse (F1) blown?
→
Yes Replace Power Fuse (F1).
↓
No
Is the Interlock Switch (S201) in the
actuated position when the Projection
Unit is installed?
→
No Adjust the position of the Switch (S201).
↓
Yes
Is the Fuse of PU1 blown?
→
No Replace PU1 or S201.
→
Yes Replace Fuse(F1) of PU1.
Check Item Remedy
Check LA1.
→
NG
Replace LA1.
↓
OK
Check TS1.
→
NG
Replace TS1.
↓
OK
Is the voltage across CN7-1 and -2 approx.
DC17V when the Power ON/OFF switch is
in the ON position?
→
No
Check wiring.
↓
Yes
Is the source voltage developing across
PJ1-1 and -3 on PU2 when the Power ON/
OFF switch is in the ON position?
→
No
Check wiring.
↓
Yes
Is the voltage across PJ3-1 on PU2 and
GND DC5V when the Power ON/OFF
switch is in the ON position?
→
No
Check wiring.
→
Yes
Replace PWB-BB.
Replace PU2.