Acer AL1721 Service Manual - Page 48

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NEW ADD CIRCUIT FOR 4 LED 04/09

EMI SOULATION ADD C422,C423,FB403,FB404

2003/02/21

Brightness

NEW ADD CIRCUIT FOR 4 LED 04/09

BackLight On/Off

Brightness

GND

+12V

+5V

NEW ADD CIRCUIT FOR 4 LED 04/09

JP403,JP404 Package

JP403

JP404

JP403

0603

2003/02/21

EMI SOULATION NEW C421 & C420 104

NEW ADD CIRCUIT FOR 4 LED 04/08

JP404

0603

VOL_OUT

1/10