Question about Hitachi 50UX57B 50" Rear Projection Television

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Picture pincushion I have a hitachi 50UX53K projection tv.Which is having a pin cushioning picture.The service tech just replaced the PNP module before this started.

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Re: picture pincushion

Converenge amp ic bad or loose connection

Posted on Jan 07, 2008

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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.

Jan 22, 2008 | Hitachi 53UDX10B 53" Rear Projection...

2 Answers

Mitsubishi VS50802 CRT rear projection

that is the capacitor.. that shouldnt be that expensive, so i guess they ripped you off.. in my country the repairment cost you less than 10$..

and yes, you need special tools and knowledge to fix this, so i would recommend you to go for some repairman before you can electrocute yourself trying to fix it, even if its unplugged...

Dec 26, 2007 | Mitsubishi VS-50800 50" Rear Projection...

1 Answer

I have a Hitachi Ultravision TV Model #50ux53k v7h002332. The remote is working and also changed the Batteries. The Tv is not reacting to the remote like it should. It randomly will not turn on or off and...

if you have to hold the remote very close it is likely a bad remote receiver in the front control panel; the only other reason would be a dirty lens there or at the top of the remote.

Let me know if all manual front buttons work normal.


Apr 28, 2011 | Hitachi Projection Televisions

1 Answer

The background color on the tv is starting to bow in different directions. the original picture looks good but it looks like there is a shadow below it that is a different clor and wavy.

Hi, it's look like you have a convergence module defect and pin cushion problem;/after replaced the module the tv set will need to be adlust.....
that as to be done by a tech
hope that gives you an idea
have a nice day...

Apr 13, 2010 | Hitachi 51F500 51" Rear Projection...

1 Answer

Hitachi 50gx30B Pincushion problem

Please let me know in which direction the picture is distorted. Does it bow in from the top and bottom or left and right?


Mar 06, 2009 | Hitachi 50GX30B 50". Rear Projection...

2 Answers

Problems with my 50 inch hitachi ultravision projection screen tv

check the solder around the area of the vertical IC. solder is either cracked or else cold. Cold solder appears as dull. Resolder anything that isnt shiny.

May 20, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

I have a 50 inch hitachi ultravision that has no picture or sound but power light is on

Probably a 'cold or detatched' solder joint on a component on that perticular circuit board you are 'wedging' with a plastic rod.

Apr 16, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Pin cushioning or barreling.

Dec 25, 2007 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

I have a 50 inch hitachi ultravision that has no picture or sound but power light is on

you have lookse connection on the video convergance amp ic

KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:

Nov 04, 2007 | Hitachi UltraVision CineForm 55VG825 55"...

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