Before Calling For Service; Problem Identification Chart; Rgb Source Problems - Zenith Presentation PRO900X Operating Manual

BEFORE CALLING FOR SERVICE

Use the following chart to identify operating problems. You may save a service call charge if the problem can be
identified as a simple switch set improperly.
Note: Problems not listed here may be installation related, see Installation Guide. Refer problem to Installer/Maintenance personnel

PROBLEM IDENTIFICATION CHART

Problem
No image on screen.
Cursor does not appear
on screen.
Colors misaligned.
Image appears distorted. Aspect Ratio setup wrong for source selected?
Image appears in black
and white.
VCR cannot be
controlled.
Sleep Timer does not
function.
HD Display turns off.
HD Display does not
turn Off at preset time.
Aspect Ratio, Format
Pref, Label Format
and Blank Setup options No equipment connected to selected source.
are not available on
Setup Menu.
Image looks
"Washed Out."

RGB SOURCE PROBLEMS

Problem
Video mode not available Video mode only available on Video or S-Video Source.
on Setup Menu.
Image is too green.
Image has "banding"
Image is "splotchy."
Image is too dark.
P A G E 3 2
MAINTENANCE AND TROUBLESHOOTING
Possible Cause
Source turned off? No signal? Weak signal? Cables loose or broken?
Using wrong remote control? Use only Trackball remote. Remote in wrong mode? Batteries
weak? Wrong battery polarity? Remote not pointed at HD Display screen? Wrong source
selected?
Format wrong for current source selected? Static Setup needs adjustment?
Wrong broadcast standard selected? Black and white signal? Weak signal from broadcasting
station? Cables broken or loose?
Remote in TV mode? Remote not pointed at VCR? VCR cannot be controlled by remote?
Remote batteries weak? Did you use AutoFind option to program remote for VCR? VCR not IR
controlled? VCR turned off? VCR in Timer mode?
Sleep Timer status set to Off?
Sleep Timer turned On? Off Timer active? Power failure?
On/Off Timer disabled?
Stable incoming signal is not available on selected source, or signal format is not in a
format recognized by the HD Display.
Loop Out/In switch set on wrong position?
Possible Cause
Clamp Pulse may need adjustment.
.
3275-A