Question about Hitachi Televison & Video
You may not be able to realign that picture without some new parts unfortunately. The magic focus will not be able to correct it, as it is a hardware failure. read on...
There are some circuits that align the RED, GREEN, and, BLUE, picture tubes to make the picture you see.
**Please understand that by opening a TV you are exposing youself to many dangers, including electrocution. Be sure that the set is un-plugged and keep one hand behind your back whenever possible to avoid a shock through the heart as this CAN KILL YOU. If you have zero electronic experience I would not attemp this repair.**
OK, public service announcement over.
The components that do that job are called "convergence" circuitry. The usual components to fail are the "Convergence Amplifiers" which are usuall a pair of Integrated Circuits mounted to a large heatsink. (STK-392) may be printed on the IC along with some number such as 110, 160, 120.
Also look for burnt resistors around these components, as it is common.If the problem is isolated to only one color the replacing those STK amps and any burnt resistors will fix it. If all the colors are out of whack (Red, green, and blue, like a 3d effect all over) then you are likely looking at a fuse gone bad in the voltage supply to those amplifiers. Usually Sony or Mitsubishi have these fuses. The fuses (called "pico-fuses") are generally orange, or green, with no color stripes like resistors have.
You can look up these parts online easily with the exception of the burnt resistors and fuses which you usually need a manual(which you can also purchase online). The STK's price will vary from $15-$90 depending on which one, and the resistors have to be of the metal oxide type so as not to change value with heat.
One place to get parts is www.partstore.com
If you want a professional to repair it, be prepared to part with around $300-$400.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
Posted on Sep 12, 2009
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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