Hitachi 57uwx20b I have a hitachi 57uwx20b, it started do thing these are bad for doing, double image and bowed from the bottom and slightly from the top. anyways been looking at the convergence chips to buy found them for $18 shipped to the door, checked my resisters and RK58 is very much bad it is burnt looking and reading like 178 something and then RK62 is like 4.7. Anyways my question is should i change all my resisters or just these 2, the rest are reading around 2 give or take, i am going with the stk392-150 ic's. Thanks for any info in advance.

you have the DP23 chassis IK04 is a STK392-110 and IK05 is the stk392-150 the two resistors RK58 is a 4.7 ohm 1watt metal film resistor and RK62 is a 2.7 ohm 1watt metal film resistor. Only use metal film 1watt 5% resistors

Bad convergence ICs STK392-110s replace both of them use 150s.
Mats electronics 1-800-628-1118

Convergence is the problem. I just fixed my set myself with a kit from TvRepairKits.com

First of all there is no light engine inside your set. Your model is CRT based. Can you better describe what you mean by the green only working occasionally? What exactly is the picture doing? Also, please confirm that your model is: 57UWX20B.

Thanks,
Dan

Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

Here are some of the most common symptoms and example photos of a convergence problem

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Solution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

your tv is having a convergence problem, nothing you can do aloneyou wll need to call a tech, there must be 2 bad ic and some resistor burnt

We lost power today and our 2002 Hitachi 57uwx20b, has no picture or sound, yet the power light is on...any ideas. Thanks

hi
You have a convergence problem
If the set has auto focus and will not complete its cycle.
The Auto focus module is bad, (expensive)
If it completes and the problem is still there.
Then check for bad conv. drivers (stk****) or cold solder joint on one or more of the 3 drivers pins.
Guy9

replace both convergence ICs they are STK392-110 you can get replacements at the following link with free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

Solution:

Your TV has a convergence problem. Here are some of the most common symptoms.

• Screen looks 3D
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.