Christie DWU1612-HS, Service Manual

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Service setups
HS Series 2K Service Manual—DWU1612-HS,DWU2022-HS 21
020-001790-01 Rev. 1 (03-2020)
Copyright ©2020 Christie Digital Systems USA Inc. All rights reserved.
PC mode
To check if noise or flicker exists on the projected screen, connect a PC to the projector.
When performing a functional test, to optimize the image before testing, adjust the zoom and focus.
• DWU1612-HS,DWU2022-HS; Analog 1920 x 1200 @60Hz
Adjusting the frequency and tracking boundary
If the projected image appears with noise or flicker, adjust the frequency and tracking boundary.
To perform the frequency and tracking boundary adjustment, complete the steps below.
1. If the image is not sharp, re-adjust using the following steps:
a. Select Menu > Size & Position > Size Presets > Full Size .
b. Select Menu > Size & Position > Pixel Phase .
c. Adjust the slider by arrow keys or press ENTER to input the values of pixel phase.
2. Select Menu > Size & Position > Horz Position or Vert Position .
3. Adjust the slider by arrow keys or press ENTER to input the values of moving pixels.
4. After inputting the value, press ENTER to apply.
Adjusting color performance
Use the HDTV (408p, 720p, 1080p) source to complete the test. The color does not turn purple and
blue.
Warning! If not avoided, the following could result in death or serious injury.
• Do not stare into beam when the projector is on. The bright light may result in permanent eye
damage.
ID Part name Description
1 Test equipment Video generator
2 Test pattern General-1 or Master
3 Inspection items Eliminate visual wavy noise by adjusting the Resync Frequency or Tracking.
• Check if noise exists on the screen.
• Adjust the horizontal and vertical position of the video to fit the screen
frame.
4 Criteria PC mode must includes supported formats with frequency and auto detection.
Warning! If not avoided, the following could result in death or serious injury.
• Do not stare into beam when the projector is on. The bright light may result in permanent eye
damage.