Yesterday my near 4 yrs old Toshiba 42H83 rear projection HDTV started having convergence problem all of sudden. The adjustment with the remote can move the red cross vertically, but not horizontally, which is what I need. What's worse, the red color deviation varies in direction in different area. In the center, it is offset to the right, while in the right hand side of the screen, it is offset to the left.
I would like to know if it is easy to fix the problem myself, a guy with some basic knowledge of electronoic only. Since the projection TV now is out of favor, it doesn't make sense to spend 300~500 bucks to ask a professional to fix it. Any advice will be appreciated.;
Vertical and Horozontal convergence not responding to remote control
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
This tv have a problems known as a convergence problems,it dead.The tv convergence booard 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 convergence problems.The shop will cost u $300-350 for parts and labors.
It sounds like a convergence problem---go into the customer menu and select convergence---set should offer center and multipoint adjustment--in the multipoint look to see if the outer crosses adjust--if red or blue will not adjust somewhere--bad convergence IC's.
Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit. http://servicemanuals.vstore.ca/
Hi you have bad convergence ic stk modules ,Cost for repair center to fix is 250.00. call your local repair center ask there prices on convergence ic repair. It is a very common problem every 3 to 5 years .Our service center does a lot of these.
Most projects in life are "easy",if you know how.Chassis will have to be pulled,convergence IC's replaced w/top quality parts to prevent
recall.Some excellant soldering will be needed
for prevent maintenance,for instance,the steel
jumper wires feedig b+ to convergence IC's.
RE-align in servicer mode==final step.
Check all micro-fuses in power supply.If two or three are bad,a convergence circuit O/H will be necessary.Pro help usually required-chassis pull,replace convergence IC's and careful hand-
soldering needed to prevent call-back.