Acer P243W

5. Troubleshooting (continued)
5.5 Abnormal OSM display - OSD Adjusment Problem
Check the input TTL level
whether if it was altered upon
pressing the function keys.
OK
Failure Point
1. Printed wire is broken between P303 pin 2 and I306 pin 87.
2. Printed wire is broken between P303 pin 3 and I306 pin 88.
3. Printed wire is broken between P303 pin 4 and I306 pin 89.
4. Printed wire is broken between P303 pin 5 and I306 pin 90.
5. Printed wire is broken between P303 pin 6 and I306 pin 22.
6. Printed wire is broken between P303 pin 7 and I306 pin 1.
7. C325, C326, C327, C328, C329,C330 is short.
8. R339, R340, R341, R342, R343, R346, R347, R348,
R349, R350 ,R351, R352 is short or open.
9. I306 is defected.
(Note: more than one components defected is possible.)
Proceed to 5.4 Abnormal Section
NG
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ACER P243W