Performing An Auto-Brightness Constant Calibration - Christie GS Series Service Manual

Performing an auto-brightness constant
calibration
Always perform an auto-brightness constant (ABC) calibration after repairing the main board, the
cooling module, or replacing the light engine.
Warning! Failure to comply with the following could result in death or serious injury.
• This projector has built-in Class 4 laser module. Never attempt to operate the projector without all
covers properly installed unless instructed to do so in this manual for service.
• Do not look into the projector lens when the laser is on. The extremely high brightness can cause
permanent eye damage.
1. Remove the top cover before during the adjustment.
See Removing the top cover
2. To power on with the top cover removed, firmly hold the interlock switch on the left cover.
3. Enter Factory mode.
See Entering Factory mode
4. Select LD Menu.
5. To confirm whether the value of LS (light sensor) is within specification, refer to the image
below.
• DHD635-GS
6. If the value is out of specification, adjust the ABC adjustment bar (indicated by the arrows in
the image in step 8) with a Phillips #1 screwdriver, until the value is within specification.
GS Series 630-635 Service Manual
020-001224-02 Rev. 1 (08-2018)
on page 51.
on page 13.
DWU635-GS DHD630-GS and DWU630-GS: 3000 to 4000 kHz
, ,
Service setups
The value
16