Question about Hitachi 50UX26B/27K 50" Rear Projection Television

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Picture looks like it is stretched too tall & wide

Model 50UX26B, chassis# AP63. Set was in shutdown at first. Replaced D2375 Horiz Out. Transistor & 4 amp fuse. Now set comes on, good audio but picture is too tall and wide like it resembles a picture with a "zoomed " appearance to it.

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Probable regulator circuit damage = research at...................... ...............T.

Posted on Nov 09, 2007


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When power button pressed get three blinks accompanied by a squeal with each blink. I replaced capacitors CP 130, CP 120 and CP 114. I removed CP 150 and verified it good with meter. I replaced fly

Your Set Is In HV Shutdown,Probrably Caused By A Shorted Flyback Transformer & Horiz Output Transistor,With That Model Rca, These Items Are All On One Separate Module Or Board,Which Can Be Purchased Seperately..

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On my Hitachi 50UX26B the only button that is working is the power. Neither the remote or the buttons on the TV will change channels or volume. Today it also has a wide black strip in the middle, about 24...

you likely had a power outage, unplug set for at least ten minutes and put power back to it.

Seen this in a lot of these sets and owned two of them myself.

before you rate this solution if you have a question let me know.

Unplugging set and plugging back allows the microprocessor in the set to reset


Jun 23, 2011 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Picture is horizontal, stretching fully across screen, but only about 6" tall vertically.

check the horizontal preset, and surrounding componunts, like capercetor, resistor, diode . or change IC.

May 15, 2010 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Toshiba TV32C50, chassis TAC9307, no start, but relay 'clicks'. No obvious electrolytic capacitor failure but power supply C801 (470 mfd, 200 V) replaced, no change.

Relay picking usually means the low voltage circuit is OK. You have a High voltage problem. Try changing the Horiz Out Transistor.


Apr 04, 2009 | Televison & Video

1 Answer


replace the H.O.T horiz. Driver Transistor.

comen problem with this set.

Jan 13, 2009 | Sylvania 6432TE 32" TV

1 Answer


please check all the lights that are in the chassis hitachi puts led in the chassis so that if one of the lights are not working then u know that circuit is bad. now there is 2 things that hit has wroung in the units and that is a 2kv hv cap of the horiz output transistor that burns up and kill the power supply look for a small black or brown fuse it will not have glass on it it is rt behind the reg ic in the center of the chassis it allwas opens up because of the hv cap doonot run the tv without out that cap it will overload the horiz drive and will burn upo the horiz output but u have a very good ctv ther if u fix it will last u a long time and it is a very easy tv to trouble shoot.

Oct 12, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Hitachi 50ux26b/27k with AP63 chassie convergence problem

It looks like the STK chips need to be replace for fix the distorted colors.
You can download the service manual from here:

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

1 Answer

No power

Probable IHVT aka flyback xformer.Also,check Horiz output

transistor.Please provide service number (three characters longer

than model number) & chassis # then I can give you part numbers.T.

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3 Answers

Philips 32PT6441/37 32"

I don't know about this particular philips chassis but I've got a phillips tp3281 with a #32d700-7570 chassis with the same problem: apparently common with philips sets. I opened mine up and discovered the burnt capacitor that others have reported, replaced this as recommended with a higher rated one. In many cases this is apparently ALL that is required to fix the prblm (a 50 cent part)unless other components are also damaged which appears to be the case with mine. This repair is about $150 here locally at a shop which I didn't want to put into a relatively old set. Have you opened up your set yet? Do a Google search on your set and you might find that others have had the same problem and a simple fix could be possible. Also you could check the following site as they seem to be quite savvy and responsive with TV repair questions:; Hope that helps!

Aug 28, 2007 | Philips 32PT6441/37 32" TV

1 Answer

Sanyo DS31650 31

If the set runs at all, your flyback and output transistor are good. If the set shuts down after a few seconds and the sides are wavy, it usually means that the main B+ in your power supply is too high and not regulating properly. I do not know what kind of power supply that model uses, but if has an old-style STR regulator (like the STR30130) then it is probably shorted, and if the set uses a switching power supply then look for an open or leaky electrolytic cap on the primary side. If the power supply is working correctly and the set shuts down, check for an open safety cap (the large 1.6 - 2Kv cap connected to the collector of the horizontal output transistor).

Aug 17, 2007 | Sanyo HT32744 32" TV

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