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Re: mitsubishi ws-65807 v17 chassis
Go to this websight leave an e-mail with your model number and let them know you need a signal board and they should be able to help you plus there prices are very reasonable and they also offer free online tech support to their customers http://servicemanuals.vstore.ca/
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Technician (only for users in the US for now) and get all the help you need. Goodluck!
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The Color Signal on this Model Series travels across three boards before being sent to the CRTs. The 3DYC Board, Signal Board and the Terminal Board. Most likely, the 3DYC Board or the Signal Board is causing the problem. I have had intermittent solder connections on the 3DYC Board to cause no color problems. This Board plugs in and is located on the left front of the Signal Board as you look from the rear of the chassis. If you feel you are not up to the task to work on the set, call a Mitsubishi professional. To find one, call Mitsubishi at 1800-332-2119.
I hope this helps,
yes the convergence Ics are what cause the two picos to be open they are both 5 amp picos. You can get the picos, the convergence ICs and the factory service manual for your model at the following link.your model is known as the V17 chassis for service manuals and you should require two STK392-570 Convergence ICs. Heres the link they provide free instalation instructions. http://servicemanuals.vstore.ca/
It' sound like you have a bad crt, to make shure, just disconect the red crt baord and green crt board next to it and move then so you can try the red crt board on the green crt. If it does the same problem in witch I realy thought it's your video or hight voltage sounce on that board. If you get no problem well it's your crt.
I can almost garranty it's your crt.