Applica RV500C : Technical information : Page 156

2.5.2.1 Function Checks

Basic functions can be checked using the self-test raster.

Refer to "Adjustment Procedures" in topic 2.5.2.4 when adjustments are

required.

Refer to the "Display-Specific Removals and Replacements" in topic 2.5.1

for removal and replacement procedures.

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¦ Symptom ¦ Action ¦

+-----------------------+------------------------------------------------¦

¦ Any problems. ¦ First, check all connections and plugs for ¦

¦ ¦ continuity. ¦

+-----------------------+------------------------------------------------¦

¦ Green LED lit but ¦ Adjust RV508 (G2) clockwise until a background ¦

¦ test raster missing. ¦ raster appears. ¦

¦ ¦ If no raster appears, replace analog card. ¦

¦ ¦ If raster still absent, replace ITC. ¦

¦ ¦ If background raster appears, replace video ¦

¦ ¦ card. ¦

+-----------------------+------------------------------------------------¦

¦ Test raster is not ¦ Adjust video levels and cutoffs for correct ¦

¦ white. ¦ colorpoint. If no improvement, replace video ¦

¦ ¦ card. ¦

+-----------------------+------------------------------------------------¦

¦ Test raster is ¦ Ensure that D2 is connected. Turn power off ¦

¦ multicolored. ¦ for 30 minutes, and then on again to check ¦

¦ ¦ degauss action. ¦

¦ ¦ ¦

¦ ¦ Check continuity of degauss coil. If ¦

¦ ¦ defective, replace ITC shield, otherwise ¦

¦ ¦ replace analog card. ¦

+-----------------------+------------------------------------------------¦

¦ Test raster scan is ¦ If partially collapsed, adjust as appropriate. ¦

¦ collapsed ¦ If fully collapsed, replace analog card. ¦

¦ horizontally or ¦ ¦

¦ vertically. ¦ ¦

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PS/2 Displays Maintenance Manual

Function Checks

2.5.2.1 - 1