Da Calibration; Restore Blower Speed - Optoma HD83 Service Manual

4-7 DA Calibration

When the image is too dim, please do ''DA Calibration".
(1) Press "Power off", "Left", "Left" and "Up" button sequentially,
then get into service mode.
(2) Choose "DA Calibration".
(3) Select ''DA reset'' , press the right buttons of remote
controller to reset.

4-8 Restore Blower Speed

After replacing main board, blower or upgrading
the firmware, please follow steps as below:
1.Plug in the power cord and press "power" button,then Plug in the power cord and press "power" button,then
hold "Power" button quickly,then the "Power LED" light hold "Power" button quickly,then the "Power LED" light
blue,"Temp LED" and "Lamp LED" light red,until the
Power LED" flash blue,release the "Power" button.
2.Wait a moment, please get into service mode
to check the "Blower Factory RPM" (as Picture A
shown).
Note:
- If the Factory FAN RPM Value doesn't show in
service mode, please repeat the step again.
- Make sure the "� Blower Factory RPM�� is 4204-4836. Blower Factory RPM�� is 4204-4836.
Picture A
Confidential
HD83 4-