Question about Televison & Video
Vertical colored lines is very common problem in plasma tv. Plasma is the most hard working type of tv nowadays and most of them encountered problem after 3 years of service which is caused by overheating of the boards.
In your case the symptoms is caused by faulty control boards and/or the power suppy boards. First, your unit must be check from bad connections inside, it will do the same symptoms. You must take it apart and pull-out all of the cable connectors from the power supply board, control board, sustain boards and inspect, re-insert and ensure its connections. You must also check bad solder joints(cracked/dried/cold solder) in the power supply board feeding the control board. The power supply board is the warmest board among others and prone from bad solder joints. You must work in the brightest area or you may used table/portable lamp and magnifying glass to spot it in the board and then re-solder.
Sustain boards is also going to be checked for malfunction. This boards process the picture coming from the control board and feed to the panel. Once gone to malfunction, same symptoms will be encountered.
This kind of symptoms is not a DIY and quite technical because a lot of boards involved. I would advice you to send it in or look for a qualified tv technician to troubleshoot the unit.
Hope I helped you.
Have a nice day!
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Posted on May 23, 2011
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Posted on Jan 02, 2017
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