Symptoms, Picture, Sound – Panasonic TC-14Z88A User Manual
Page 22: Checks, Troubleshooting, Symptoms picture sound checks
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Troubleshooting
Before calling for service, determine the symptoms and make a few simple checks as shown below.
Symptoms
Picture
Sound
Checks
Snowy Picture
Noisy Sound
Aerial Location, direction
Connection
Multiple Image
Aerial Location, direction
Connection
Normal Sound
Interference
Noisy Sound
Electrical Appliances
Cars / Motorcycles
Fluorescent Lamps
Normal Picture
No Sound
Volume
(Check whether the mute function has been
activated on the Remote Control.)
No Picture
No Sound
Not plugged into AC outlet
Not switched on Contrast and Brightness / Volume
Setting (Check by pressing the Power Switch or
Stand-by Button on the Remote Control.)
No Colour
Colour Control
Normal Sound
Scrambled
Re-tune Channels
Weak Sound
Colour Patches
Magnetic interference from unshielded equipment.
Receiver moved while “ON"
Normal Sound
No Colour
Sound System
Colour System
Noisy Sound