Couple of days ago my Toshiba TW56X81 TV started having a major convergence problem. The Red is way off with a Bow at the left end of the screen. This definitely cannot be fixed with the standard convergence settings screen in the menu as I have learnt.
Wondering what could be wrong here. Reading on the net it seem like it might be the Lens IC. Wanted to verify if that is a likely area .
Also looking to find a service manual for this TV. any pointers on where to get one online. Have tried multiple places and nobody seems to have it.
Thanks in advance
I retired from the TV repair business because if you are not an authorized repair service center most manufacturers will not even talk to you. If you are electronically inclined you can repair this tv. your problem is a bad convergence ic. you need to be able to locate it and replace it. it probably has about 15 or 18 legs that need to be unsoldered and a new replacement re-installed
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Convergence IC's need replacement = STK392-110 original #...
Use name brand Toshiba, NAP, or upgrade to STK394-160E
Hitachi part # CZ 01341...no cheap generics..they won't hold up..
Chassis pull and some precision soldering will be needed....let me know if you need further info...........................T.
The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look like.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Convergence adjustment procedure to many brands of projection TVs are given in detail.
You will need to replace both convergence ICs they are both STK392-120 and you will also need four 6.8 ohm 1 watt resistors. you can get the Convergence ICs and resistors at the following link and they provide free instalation instructions with pictures so you can do the repair yourself. Here is the link. http://servicemanuals.vstore.ca/
Hi Mark, tough call without putting a scope to the circuit, either the convergence IC`s are going bad, signal from DCU is going bad (digital convergence unit), or possibly bad solder somewhere in the convergence circuit, I`m afraid your going to need a tv tech for that problem, BMW Rider