Troubleshooting Guide - Changhong Electric UHD42C5500ISX2 Operation Manual

Troubleshooting Guide

Troubleshooting
Before contact the service technician, perform the following simple checks. If any
program still persists, unplug the TV and calling for serving.
PROBLEM
No sound and picture
Normal picture but no sound
The remote control does not
work
Power is suddenly turned off
Picture appears slowly after
switching on
No or poor color or poor
picture
Horizontal/vertical bars or
picture shaking
Poor reception on some
channels
Lines or streaks in pictures
No output from one of the
speakers
POSSIBLE SOLUTION
- Check whether the main plug has been connected
to a wall let.
- Check whether you have pressed the POWER
button on the front of TV set.
- Check the picture contrast and brightness settings.
- Check the volume.
- Sound muted? Press the MUTE button.
- Try another channel, the problem may be with the
broadcast.
- Are the audio cables installed properly?
- Check to see if there any object between the
product and remote control Causing obstruction.
- Are batteries installed with correct polarity (+ to +,
- to -)?
- Correct remote operating mode set: TV, VCR etc.?
- Install new batteries.
- Is the sleep timer set?
- Check the power control settings. Power
interrupted.
- No broadcast on station tuned with auto activated.
- This is normal; the image is muted during the
product startup process. Please contact your
service center, if the picture has not appeared after
five minutes.
- Adjust the color in menu option.
- Keep a sufficient distance between the product and
the VCR.
- Try another channel, the problem may be with the
broadcast.
- Are the VIDEO cables installed properly?
- Activate the any function to restore the brightness of
the picture.
- Check for local interference such as an electrical
appliance or power tool.
- Station or cable product experiencing problems.
Tune to another station.
- Station signal is weak, reorient antenna to receive
weaker station.
- Check for sources of possible interference.
- Check the antenna (Change the direction of the
antenna).
- Adjust balance in menu option.
51