You are here:

TV/VCR/Stereo Troubleshooting/Panasonic Color Video Projection System PT-51G43C


The screen image has gone "dark" and the colour balance cannot be corrected with the set's internal controls.  Sound is ok.  Same problem with DVD and VHS players.  Does not correct with removing and replacing all connections including satellite.  Previously noticed once but self corrected.  Nearest technician wants $200 (nonrefundable) travel time just to come and look.  Does this sound like a "parts" problem or something I could easily correct?

It sounds like a failure of the convergence circuitry.  Look here for repair kits:

Your model is not listed but one that is similar in model number is likely to work for your set.  I suggest you contact the repair kit people and check with them to see if it will work for you.

These kits generally run around $65 US and require about 2 hours of semi-skilled labor to change out the IC chip set and resistor.  All parts come with the kit including instructions on how to do it.  

There are other kits available so google around for the best deal; or if you have a technician in the family or among friends they can help you with it.

Good Luck.

PS: This is an old set; you will need to start looking for a replacement sooner or later.

TV/VCR/Stereo Troubleshooting

All Answers

Answers by Expert:

Ask Experts




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. BE SURE TO CHECK YOUR EMAIL FOR THE RETURN ANSWER DURING THE NEXT 24 HOURS AS I TRY TO REPLY TO ALL QUESTIONS WITHIN THE SAME DAY IF NOT THE SAME HOUR.


Electrical Engineering; recording, broadcasting, design, international standards, tv and radio theory and practice.

FELLOW of AES (Audio Engineering Society)
Senior Life Member of IEEE (Institute of Electronic and Electrical Engineers)
International Consulting Organization

IEEE Spectrum
Various Consumer Electronic publications


Awards and Honors
Famous Engineer for Digital Audio

©2016 All rights reserved.