Question about Hitachi 53UDX10B 53" Rear Projection Television

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Hitachi convergence problem

Have Hitachi 53UWX10B rear projection from 2002. Had convergence kit installed 16 months ago. Last of 4-5 repair visits over life of set. Now it will go in and out of color alignment and picture is curved @ top and bottom toward center of screen. Problem is only intermittent for last 6 weeks. Picture is fine and then sometimes it starts acting up. I suspect the possibility of a loose connection since when prob starts if you tap side of cabinet usually will go back to normal. One service center said they just want to come and replace convergence kit for $500.00 or so. That stinks!! Don't think this TV is worth that kind of investment, especially if repair will only last a year or so. Also I found in basement a box of assorted resistors a tech must have left here on one of the visits. There must be 300-400 total they must be worth something to a repair tech, right??

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Re: Hitachi convergence problem

You need to re-solder the circuit board that contains the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. Take the appropriate cautions working around the high voltage of the set & use a non-conduting piece of wood to push the heat sink when we doing tests.
Best of luck, hope ya fix it.

Posted on Jan 22, 2008

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Hitachi 53uwx10b

thats the sign of failed convergence. You can get the Hitachi DP14G convergence repair kit which also contains instructions from the following link then just scroll down to the DP14G convergence repair kit.

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Convergence on ur tv are dead.Must know how to do soldering?Must replaced 2 STK convergence ICS,and some or all it resistors.Tries websites Tv repair, to buy a convergence kit to fix it urself.The shop will cost u $300 for parts and labors.

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Ur convergence is dead.U know how to solders?Try this website,Tv repair buy a convergence kit,replace what in that kit.

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Welcome to the world of having a convergence circuit problem. There two things you can do; get it repaired by a Factory Authorized Service Center or repair it your self. Purchase KIT 10 from B&D Enterprises, 1-800-458-6053. The kit has everything you will need except soldering equipment and experience. Good Luck, big IRISH.

Sep 19, 2008 | Hitachi 53UWX10B 53" Rear Projection...

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Working backwards now.......The burning smell will be the current limiting resistors near and in the circuit of the IC's
you changed..1 to 2 ohms, 1 or 2 watts.....caused by generic
replacement IC's STK392-110,120 or 150......Here is what to do to FixYa! First,please read some of my solutions for convergence
repairs...any brand,the info is generic,the repair parts are not....

1) REMOVE cheap IC's ! Replace with Hitachi part # CZ 01341
upgrade Mfr by Sanyo STK394-160

2)Replace any / all burnt or changed value resistors

3)Re-test to see any symptom....DO NOT CONVERGE

4)Think about putting the original DCU back,since it was
not the problem .......

5) Now where are we at ?? ............................T.

Feb 05, 2008 | Hitachi 53UWX10B 53" Rear Projection...

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Hitachi 53UWX10B Projection TV colors not lining up...

This is a convergence issue..both chips need replacement.

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Hitachi 53uwx10b

Hitachi has created a repair kit part# X480293 for this problem. It includes: (2)STK392-150 convergence ic's,resistors RK42 = 3.3 ohms,RK46 = 1.8 ohms,RK50 = 2.7 ohms,RK54 = 1.5 ohms,RK58 = 3.9 ohms,RK62 = 2.2 ohms,all 1 watt resistors.

Aug 20, 2007 | Hitachi 53UWX10B 53" Rear Projection...

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