Convergence on hitachi tv

Yes, this model uses two convergence chips--either STK-392-110 OR STK-392-150--both are the same part but the 150 chip lasts longer.

Some history for you:

The two chips are black in color and 2 1/2 inches wide and 1 1/2 inches tall with 18 pins each. They are as you look from the back of the set on the far right side--usually on a large metal heat sink with fins and some versions have them on two smaller heat sinks side by side----they will have the full STK number printed on them in white.

When they are installed a white grease to transfer heat quickly is applied to the metal back of each chip----after some years the grease dries out and one of the chips fails.

Both chips and any of the 12 or so protect resistors around them need to be CHECKED and or replaced and the set adjusted with the Hitachi remote--pretty easy repair.

If you can do this repair you can buy the parts on Ebay for less than 14 dollars plus shipping--

If you cannot do the repair--shop around your area as most shops charge 300 or more for this kind of repair--make sure whoever you get to do it BOTH chips are replaced or you will have the same trouble again in a few months--some clowns will just change one chip........


If they say "It has to go to the shop" keep looking as any good tech can do this repair right in your home in about 1 hour---I know as I have done hundreds of these repairs for people here.

If you have questions or need directions or advice let me know----

I am here to help people--if this information helps you rate this solution--I do this here for free.

SD TECH