Question about Projection Televisions
Check your convergence first, use the AUTO adjust feature first then see if this clears up the problem. If the Auto adjust does not work then the following may be in order:
Only do this if you have a background in electronics, if you do not get a qualified TV technician to work on this set.
If you choose to do this yourself, here are the basic instructions:
1. Unplug the TV set
2. Take the rear bottom panel off
3. look for a large heat sink with two large black ICs (STK392-110) (6 sided components but rectangular in shape) on it, and remove the board the ICs are on from the TV set.
4. Unsolder the components using a soldering iron and a suction solder remover.
5. disconnect the components (ICs) from the heat sink
6. Unsolder all of the bias resistors and replace them with the proper values (usually 220, 150, 3.3, 2.2, and 3.9 ohms)
7. install the new ICs (STK392-110)
8. solder all connections IC and bias resistors
9. Inspect for shorts
10. reinstall circuit board
11. Plug the TV set in and turn it on.
I hope this helps
Posted on Oct 03, 2008
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