Aboutcleggsan Expertise Consumer Electronics of all kinds. Audio, esoteric audio systems and components, video, tv. Digital equipment for consumer use. Ham radio and automotive electronics. Note: I give advice on tv repair based on general consumer electronics engineering experience but I am not engaged in actual repair of sets. MAKE SURE YOU GIVE THE MAKE AND MODEL NUMBER AND AGE OF THE SET.
Experience Electrical Engineering; recording, broadcasting, design, international standards, tv and radio theory and practice.
Organizations FELLOW of AES (Audio Engineering Society)
Senior Life Member of IEEE (Institute of Electronic and Electrical Engineers)
International Consulting Organization
Publications IEEE Spectrum
Various Consumer Electronic publications
Education/Credentials BSEE
MSCS
MBA
Awards and Honors Famous Engineer for Digital Audio
Question QUESTION: dear sir,
kindly give me yr valuable advice on my panasonic plasma TH50PY800H proplems as follow:
The half sreen goes black after 15 minutes of watching and other half having bad picture going up and down. i turned it off and after about 3 hours i turned it on then no proplem found, however it last about 15 mins then the screen goes black again. it continued happening like that again and again.
i am attaching the image for your clear understand my proplems.
ANSWER: Thanks for good image to help me determine what is going on.
It looks to me as though there is a power supply deficiency wherein a voltage regulator or bridge rectifier is not getting high enough voltage to the main display board and associated electronics. It may require you to have the P service tech come to your place for examinations. This set runs quite hot inside and based on your comments the power supply ailment may be temperature/heat related.
Have you done a hard reset? This is done by disconnecting the power cord for at least one full hour before powering it back up. This will sometimes cure a corrupted software code, but it won't do much good where there is a physical or electronic failure. Worth giving it a try, nonetheless.
Hope this helps.
C
---------- FOLLOW-UP ----------
QUESTION: Thanks for your qick help.
Should I try hard reset and how to do it? please advice. unplug the
power cord during TV operates and then plug again? I am right?
thanks ad best regards,
TT
Answer Hard reset is: Unplug the tv for one full hour. Then power it up again. This procedure allows total discharge of all voltages inside the set so that when you power it up again it restores everything to the factory default settings.
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