Question about Hitachi 53UWX10B 53" Rear Projection Television

2 Answers

Bad Solder A friend of mine has a Hitachi 53UWX10B and ran into the convergence IC problem. He unwisely attempted a self repair and really screwed up the pcb. He then calls me to laugh and point since he didn't ask for my help in the first place... Anyway, is there any way possible to replace the whole pcb that the dcu sits on? If so, do they sell a replacement with a dcu and ic's already on the pcb? If not, is it as simple as ordering a new pcb unsoldering the old dcu buying the IC replacement(s) and resistors for the board and soldering them back? Alternately, is there anywhere to look for that might find working parts from broken tv's or remanufacture broken tv parts? working parts from broken tv's or remanufacture broken tv parts?

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  • atldrew Dec 10, 2007

    Yea, i know i'll replace again and diagnose and reflow some connections if i can't just find a replacement, however, i don't want to spend too much time helping him out.

  • atldrew Jan 09, 2008

    Thanks for your help guys, i replaced all of the resistors and the IC's and then checked every connection with the multimeter. In some cases I had to reflow some of the connections on the pcb and it is now working great! Additionally, however, the magic focus still errors out with an error code number 3 any ideas?

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I know of one company that deals in selling remanned boards. Do a Google search on: PTS Electronics. I used to work for them and they may have what you need at any time; may cost ya though.

Posted on Jan 09, 2008

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I don't know if you can buy the boards anymore, ive always replaced the IC checked the resisters, i can point you to two websites that have instructions.
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
i would also replace the IC with the stronger ones stk392-180's and i would replace both no matter what.

Posted on Dec 10, 2007

  • Cary Farah
    Cary Farah Jan 09, 2008

    i know my magic focus still errors out, i thought it might be because i put in stronger valued ic's

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1 Answer

When using majic focus the blue doesnt focus right


Simple answer for this question:

Magic focus is for Convergence and attempts to adjust at about 16 points on the screen---if it does not help the two convergence chips this set uses need to be replaced---small chance if either chip shorted you may have a bad resistor near them also.

See attached photos of convergence problems --no two look the same but you will now know if your problem.

I have replaced chips in hundreds of these Hitachi sets--about the only real issue the sets have--life span on the chips is 5-7 years.

If you can solder and are moderately handy this can be a do it yourself repair--Parts (see photo of chips) cost will be under 25 dollars and the fix for a first time person about one hour.

Happy to help and assist you if you decide to fix it yourself.


4_5_2012_6_42_16_pm.jpg


4_5_2012_6_42_45_pm.jpg


4_5_2012_6_43_16_pm.jpg

Chips look like these and may have the stk-392-150 number on them, a stronger version of the one seen in the photo

Apr 05, 2012 | Hitachi 53UWX10B 53" Rear Projection...

Tip

"double vision" caused by bad solder points on convergence chips (check before...


Before you order new convergence chips to try to fix the double vision or 3D look on your tv check the solder points for the chips. If you are able to smack the side of the tv or tap the heat sink for the chips and it corrects the problem than chances are the chips are fine butone or more of the solder points are bad. When I looked at the joints for the chips I noticed hairline cracks around the base of the joint. Re-soldering the joints for the convergence chips solved my problem.

on Jun 02, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Will nt turn on only geet a blinking lite


u may have a bad convergence board , check for bad resistor next to the convergence ic and u will see that they are burn

Apr 23, 2010 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

I changed the IC chips on my hitachi 53uwx10b tv like you guys said that helped alot but still have wavey lines on both sides of the screen what do I change on the con. board now? Thanks alot Jim


Resistors " RK42 3.3ohms
RK46 1.8ohms RK50 2.7ohms RK54 1.5ohms RK58 3.9ohms RK62 2.2ohms After you replace all of them then enter convergence by pulling OFF bottom front panel there on front of convergence board is a small blue button press it and a convergence pattern will come up now aline each color red then blue.

Sep 24, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Red horizonal convergence tilts instead of adjusting evenly.


For your hitachi unit one of the convergence IC is bad along with couple of low value resistance on
the convrgence board.

Good luck
Dals123

Oct 09, 2008 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

Hitachi 53UWX10B Convergence cutting in and out


Good Day, Armenian;
You have poor connections on the convergence IC's , re solder and your TV should be back to normal.
Good Luck, big IRISH.

Aug 04, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 53UWX10B 53 convergence color lines dont move w\RC


After replacing IC's, double check the solder connections for bridging or no solder on pin(s). Check all bias resistors (low ohmage). Make sure you have your VCC voltage, should have a positive/negitive voltage of about 24 v on each IC and +38v.Also, make sure all cables are plugged in and fully seated

Note: All bias resistors are very low ohms eg; 3.3, 1.8, 2.2 make sure correct value, very important.
If can't adjust still CPU digital convergence board (near ic's) shielded may be defective.

Feb 23, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 53uwx10b tv


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

Feb 06, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Green lines along top of Hitachi 53UWX10BA


convergence ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 02, 2008 | Hitachi 53UWX10B 53" Rear Projection...

2 Answers

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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