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XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE
Lamp failure to light up
Does new lamp light up?
Yes
Lamp faulty. Replace.
Is voltage applied across C1703?
Yes
Is voltage applied to pin (16) of
IC1701?
Yes
Is FET drive voltage applied from pin
(2) of IC1701?
Yes
Is voltage applied at TGU1701?
Yes
TGU1701 faulty.
No
Is discharge noise heard?
Yes
Replace TGU1701. Check
connectors.
No
Is F701 blown out?
Yes
Replace F701. Check and replace
Q1701.
No
Is voltage applied to pin (1) of
connector BL?
Yes
Is F704 or TF1701 blown out?
Yes
Replace F704 or TF1701.
No
IC1702 or nearby circuit in trouble.
No
Q1703 or nearby circuit in trouble.
34
(Continued)
No
No
Check DB701 and its peripheral parts.
No
Check IC5001 and its peripheral
circuits.
No
Replace Q1702.
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Troubleshooting
