Hi, you may have to view your Settings, and look at the Picture Settings, or Mode. You should be able to change the quality of your screen view. Some TVs have the option of Dynamic, -Standard, -Natural,- and Movie. Each has a various picture quality, some darker some brighter. I hope this sorts it out. Cheers
Invert er Board.
https://www.techwalla.com/articles/bad-inverter-board-symptoms
SOURCE: Rear projection dark picture
Open up the front of the set and find the screen controls and perform a grey scal alighnment by adjusting the red , blue , and green screen controls but be carefull and make sure you adjust them evenly or the picture will not look right. Good Luck
SOURCE: JVC Projection Television HD 52G886
Hello jenniferjz20,
This problem seems like it may be related to the HV section or the video section. The HV section would effect the voltage at the ancde of the CRTs, while the video section would effect the video level at the cathode of the CRTs. My experience tells me that the HV section is more then likley the cause. I would suggest that if you have a HV probe use it to test the HV level on each of the CRTs this will tell you if the HV section is working correctly. Then test the video signal level using an oscilloscope on the CRT socket at the pins corresponding to the video input (Cathode).
If you do not have the equipment to do this nor a background in electronics I would suggest that you have a TV technician repair this for you.
I hope this helps
Thank you,
Shuttle83
http://www.electron-age-technologies-llc.com
SOURCE: JVC HD-52G886 HDTV Television screen is dark
usually it is the lamp this set uses, has it been replaced or is over 2 years old?
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