Troubleshooting Chart; Power Loss - Panasonic CT-31SF12T Operating Instructions Manual

Troubleshooting Chart
Before you call for service, determine the symptoms and make a few simple checks shown below•
Symptoms
Check
Picture Sound
SNOWY PICTURE
MULTIPLE IMAGE
INTERFERENCE
NORMAL PICTURE
': :-: : i':
'.. • .. •
.":" :.'..".. " .!
NO VIDEO
NO PICTURE
•
.
NO COLOR
BLUE PICTURE
BLACK BOX IN
PICTURE
\
NOISY SOUND
<,
NORMAL SOUND
\
NOISY SOUND
X
NO SOUND
\
NOISY SOUND
NO SOUND
<,
NORMAL SOUND
NO SOUND
SOUND
- ANTENNA LOCATION AND/OR CONNECTION
- ANTENNA DIRECTION AND/OR LOCATION
- ANTENNA LEAD-IN WIRE
- ELECTRICAL APPLIANCES, LIGHTS, CARS AND TRUCKS
- DIATHERMY AND OTHER MEDICAL EQUIPMENT
- VOLUME CONTROLSETTING
- MUTECONTROL(IFAPPLICABLE)
- TRYANOTHERCHANNEL
- TVSPEAKERS(IFAPPLICABLE) INTHEOFFMODE
- TV OR CABLE TUNING MODE SET TO PROPER SETTING
- ANTENNA INPUT CORRECT (IF APPLICABLE)
- CHECK THAT AC POWER LINE IS PLUGGED INTO AC OUTLET
- BRIGHTNESS & AUDIO CONTROLS SET PROPERLY
- TRY ANOTHER CHANNEL
- COLOR CONTROL SETTINGS
- TRY ANOTHER CHANNEL
- RECEIVER IN VIDEO MODE WITH NO SIGNAL
- CC (CLOSED CAPTION) IN TEXT MODE
- SELECT CAPTION OFF MODE TO ELIMINATE BLACK BOX
I hould this unit turn ON momentarily and then turn OFF, or fail to operate, unplug the AC cord and contact your I
Authorized Servicer for repairs.
I
Power Loss
Prolonged power interruption causes the following features to reset to their factory preset state.
FEATURE FACTORY PRESET STATE I FEATURE FACTORY PRESET STATE
POWER OFF I CLOCK NOT SET
VOLUME APPROX.-I/3 SLEEP TIMER NO/OFF
CHANNEL CH 03 TIMER NO/OFF
PROGRAM MEMORY UNPROGRAMMED TV/ANT--CABLE CABLE
VIDEO MENUS NORMALIZED TVNIDEO TV
AUDIO MENUS NORMALIZED NOISE REDUCTION OFF
STEREO/SAP/MONO STEREO
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