Question about Toshiba 55H70 55" Rear Projection Television

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Hitachi MD# 53uwx10ba Blue canono leak

Blue color cannon is leaking after i meddled with it i was trying to see if i could remove to specs from inside the cannon that were appearing on the screen. the picture a little obscure as i took the cannon apart" i would like to know what is my fix if any or where to purchase the blue color canon at a good price

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Re: hitachi MD# 53uwx10ba Blue canono leak

Hi, you need to call a tech now, the fluid is very caustic to your board and needs to be cleaned asap, the blue tube does not have to be replaced (good thing as it`s veeery expensive), Call atech right away and he`ll be able to stop the tube from leaking, good luck, BMW Rider

Posted on Jan 14, 2008

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Re: hitachi MD# 53uwx10ba Blue canono leak

You dont need another Blue gun. We can show you how to repair your seal and where to get the parts. You will need the service manual. you can get it at the following link. Click on toshiba and you'll see your model it cost 10.99 and we provide unlimited chat support to help you repair your set. Then if you click on the contact us link and provide your email address we will email your manual along with instructions on how to enter the chat sessions. I am one of their techs. Hope this helps.

Posted on Jan 13, 2008

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1 Answer

Hitachi 53UWX10BA dynamic convergence works but blue is blurry

I know this set very well---you are saying convergence adjusts ok everywhere? If you understand that the blue is usually de-focused a little----there are only two ways to adjust the focus of each tube-----

1.) Behind the front speaker grill there is an inspection plate---with it removed you will see a small black plastic block with 6 controls on it; it is the MASTER SCREEN/ FOCUS BLOCK

2.) THREE of the controls left to right are Screen controls(red, green and blue) and the other 3 are FOCUS--IT IS ALL black and you need to look close to identify which is focus and which is screen---you are looking for the BLUE focus control(one of the 6)

3.) With the convergence grid on screen cover the RED and GREEN lens in the set and try to adjust the focus of the blue(I presume you know how to put the set into the Convergence mode?

4.) The only other way to adjust the Blue focus is from the back of the set---with the Red and Green lens covered up place a blanket over the top of the set that covers the whole screen--from the back of the set you will note that all three of the black focal lens have a wing nut---with the convergence grid up and only blue lines present(Green and Red lens covered with a cloth) look from behind the set at the grid---loosen the wing nut on the blue lens and slowly slide the lens left or right until the blue has the best focus possible----if it will not adjust with the focal lens or the front focus control you have a circuit problem.

I do this here for free and if this information helps you take a minute and give me a vote here. If you have any questions or need advice reply to this posting here and I will assist you.


Sep 14, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Lost picture and sound after moving television

It sounds like CRT Fluid from probably the Blue CRT has leaked over the Boards in the set. The worst of is the Fluid is a Glycol base
and it is conductive. Plus it also soaks into the boards and it cannot be removed once it soaks in. Unfortunately the news does not get any better. The cost of the CRT and the replacement of the board/'s would probably more than replacing the TV.
Sorry about the bad new,

Jul 07, 2009 | Hitachi 46F500 46" Rear Projection...

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Hitachi 53UWX10BA HDTV adjusting color

Hi, Your tv model has a small light blue color button inside for manual adjustmnet mode. You will have to remove the front covering below the screen. its just attached with velcrow. Then there will be a centre wooden pannel with the the switching box screwed to tv front with around six screws.Open this panel and look to the left corner of the chasis boards in front of a small metallic box. Thats the switch you have to press to get into manual adjustment mode. use remote to adjust the colors. once done press it again to exist. Visit to find out more about tv FAQs. Thanks if you found it helpful.

Apr 29, 2009 | Projection Televisions

1 Answer

Hitachi 53UWX10BA HDTV with convergence problem for blue

No there are no quick fix options for this fault. The convergence amplifiers operate similar to a high power audio amplifier, so if there is an impairment anywhere in the system, it will result in distorted audio, or in the case of television convergence amplifiers, a color won't align. The convergence power pacs need to be replaced and the out of tolerance precision resistors located near the power pacs need to be carefully checked and replaced as necessary.

It is also possible that there are root faults that cause the amplifiers to go bad which include bad connections or a bad digital control module. This repair is possible for anyone having basic electronics knowledge and soldering skills.

Apr 28, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Blue color doesnt muve up

hi there. sounds like a bad convergence IC. possibly a broken connection(s), parts are located on a large heatsink near the center of the main chassis, part number is STK391-110 for standard definition and STK391-570 for high definition, the location and part numbers can vary from model to model and year to year. hope this helps.good luck and be safe.

May 26, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Problem continued

Good Day;

When you activate the Mj focus the TV is restoring the data from the TV's digital circuits. So, you have the ability to change the IC's you can do this.

You need to go into the con service mode. Take off the front grill, remove panel, 6 - 8 screws. From the front there is a switch on the left hand side, it is small, white button with TV on. now you are in the service mode, using TV's remote adjust. Make sure you save dat. Go hit on line site get more info.

Goo0d Luck!

May 25, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer


it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.

Apr 12, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Red color on screen is warped on my LCD projector TV.

Normally the oily fluid coming from a picture tube, is the coolant from the tube. It's very combustible and have been known to start a fire. You have two problems in this set. A leaking blue picture tube. A convergence circuit that needs repaired. Call a local servicer and see if they will give you an estimate over the phone. It's time to start looking for a new digital set. Good Luck.

Jun 23, 2007 | Hitachi 50UX58B 50" Rear Projection...

1 Answer

Picture Problems with Hitachi 53" Projection TV

most tv shop's will replace convergence ic's,which your tv needs.Thepart number is stk392-180 very common You need 2 plus poss resistors,3 bucks apiece

Mar 20, 2007 | Hitachi 53UDX10B 53" Rear Projection...

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