Troubleshooting - Christie APS Series Service Manual

5. Troubleshooting

5-1 Notice of AUTO adjustment
Use of AUTO adjustment with the image through analog RGB input optimizes V_POSI, H_POSI,
and H_PHASE automatically.
In case that display image has dark tone around its peripheral, AUTO operation sometimes makes
artifacts in the image, shifts capture area and so on. Those failures are caused by period of image
data is not exactly distinguished to period of blanking on signal processing.
To avoid such phenomena, AUTO function should be used with the full size picture that has bright
tone on its peripheral.
A
Image when AUTO operates correctly.
NOTE:
• The phenomenon of the failure of AUTO adjustment depends on resolution of input source, scene
of picture etc.
• There is no above failure of AUTO with video source through VIDEO port. The reason is
recognition of input signal's standard does not need to search the capture range from input signal
itself.
LWU650-APS/LWU530-APS
Service Manual
LWU650-APS / LWU530-APS
Image when AUTO fails.
• Noting image of top or bottom lines.
• Shift of the image to East or West.
• Artifacts on image. Etc.
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A
020-001522-01 Rev. 1 (11-2018)
LIT MAN SERV APS Series