Troubleshooting

Symptom Charts/Indicator Lights (Continued) - 16

 

 

 

Indicator Lights (Continued)

Size indicator light blinks or stays on; power indicator light might also blink

1Replace main deflection board.

2Replace CRT/video board.

3Replace microprocessor board after downloading settings as described in “Display Setting Restoration” in this chapter.

Caution: To prevent data loss or corruption, always save EEPROM settings before you replace the microprocessor board.

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Apple 20 manual Indicator Lights