Question about Hitachi 65TWX20B 65" Rear Projection Television
Color is off on projection tv, mostly any red coloring is very blurry
OK, the first of these sets was made in 2002 and it uses two convergence IC chips---some use a STK-392-110 AND A STK-392-150-----THE 150 is a higher current (more heavy duty version of the 110) I would replace both with STK-392-150's---YOU can buy both chips on Ebay for about 14 dollars plus shipping---sometimes there will be a bad resistor near one of the chips (taken out by a bad IC)
The reason these chips fail (they are black and about 2 1/2 inches wide and 1 1/2 inches tall) is that a white grease to transfer heat from them to the metal heat sinks they are bolted to---dries out from the heat and after 5-8 years one chip reaches a point where it cannot move the heat fast enough and it goes!
You can locate the chips inside the set---they will have the STK numbers printed on them in white---I do not know if you have the skill to do this repair yourself---if you do you can save some real money----
If you do not have the skills to do this find someone in your area who has done this before--most shops will TRY to charge 300-400 for this kind of repair---I do it here for 200-250 and do hundreds of them each year---I did 2 Hitachi's yesterday in peoples homes.
If a shop says: "it has to go to the shop" keep looking---any good tech can do this repair right in your home--MAKE SURE WHOEVER YOU GET TO DO THE REPAIR CHANGES BOTH CHIPS! If only one is replaced the other will fail and you will have the same problem again. This kind of repair usually takes about a hour to do---once the chips and any bad resistors are replaced the set is adjusted in a tech menu----SET SHOULD BE GOOD AND NOT HAVE THIS PROBLEM AGAIN FOR 5 to 8 years!
Now is the slow time of year for TV shops--shop around--200-250 is a good investment and you could not replace a set like this for that kind of money
If you have any questions or need more help reply to this post.
I do this here for free so if this has helped you take a minute and give me a vote here.
Regards, SD TECH
Posted on Sep 05, 2009
Testimonial: "have'mt tried this yet, but very informative"
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 13, 2011 | Toshiba 57H81 57" Rear Projection...
May 16, 2011 | Televison & Video
Apr 30, 2010 | Toshiba TP43H95 43" Rear Projection...
Sep 01, 2009 | Zenith D61W25 61" Rear Projection...
Aug 22, 2009 | Philips 50P8341 50" Rear Projection...
Aug 16, 2009 | Philips Magnavox 51MP392H Rear Projection...
Jun 23, 2009 | Philips 60PP9202 60" Rear Projection...
Feb 03, 2009 | RCA D52W19 52" Rear Projection Television
Nov 25, 2008 | Hitachi UltraVision CineForm 55VG825 55"...
239 people viewed this question
Usually answered in minutes!