Question about Hitachi 43FDX20B 43" Rear Projection Television

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Red Projector is twisted

I had my TV cleaned and repaired and part the repair was a twisted yoke at least that is what the repair man said. It needs to be aligned again. I don't want to have someone come out to fix it. Is this something I can do? I didn't see what the repair man did but it seemed easy. Can anyone tell me what he turned to fix it?

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Re: Red Projector is twisted

The yoke sits on the tube it will have a screw you have to turn to loosen, how ever there is high voltage in that area and i don't suggest getting in and moving it unless you know what your doing.
you should mark it with a sharpie so you can get it back to where it was, there is also two tabs on the yoke that can be moved to adjust it.

Posted on Jan 29, 2008

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I have a panasonic projector tv model pt-56tw53g, when i turn on it wont come on but the red light blink 5 time. is there a problem with my lamp or the power supply.

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Cannot adjust red multi point

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The yoke or yokes may have:
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Loosen a yoke and lower to inspect the tape. If black tape is present remove it from under all yokes (white tape or no tape is OK). Slide yoke or yokes up tight against the CRT and tighten to prevent slipping or rotation. Precede with
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My Zenith tv plays well, then the picture starts jumping and then picture goes off. Repair man has had tv for almost 2 months and can't seem to find out what is wrong.

Check the Vertical output IC and the Solder connections on the Vertical deflection yokes. Bad solder on the yoke plug connectors will cause the same symptom, and the Vertical IC may just need to be resoldered as thats fairly common with that model.

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Something is not right here. Is there any possibility that you can get the circuit designation (Rxxx) of the resistors that were "incorrect"? I am not aware of anything like this that can cause the "memory to be erased". The only memory in that area would be the factory convergence settings which can be modified from the service menu. Please try to supply the resistor IDs and I'll check on this.


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Phillips 43PP92 0217 red blue converge

here is the sulution to ure coror problem take the back of the tv off turn on the tv and look directly into the bulbs blue red and green most likely you will see that the bulbs look cloudy the liquid in the bulbs after time begains to grow a fungus in them u need to get some crestail crear projector bulb fluid take the bulb assembly out of the the tv there r 3 of then take a socket wrench and un screw the bulbs take after draning the curent fluid out therr is a drain plug on the bottom then dissasimble the bulb and clean the projector magnifine lens with windex and a lint free paper towls clean the gasket as well onces you get the filmy fungus out of the bulb make sure u do not touch the inside and get it dirty again put the bulb back together then fill it up with the new fluid make sure to tap out the bubbles then put the plug back on it a reinstall the bulb ONLY DO ONE BULB AT A TIME SO U MIX THEM UP reinstall the wireing to the board then do the next one once ur done u will need to fight with the alinment ajustment inside the tv and also in the programing also might have to set ur colar to if ur scared to do this a tv repair man charges about 350 to 450 $$$ to do trust me u can do it your self just be carfull dont get water on the motherboard

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Just got a broken TV

Man you may have a big mess on your hands the cooling fluid has probably gotten on a circuit board(s) and ruined it them and using the set with a cooling fluid leak is dangerous. You may need to replace the small signal board large signal board and the cooling fluid in the crt. I suggest this job to a pro

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Tv has bad blue crt (pix tube) said the repairman

blue tube is very common on this type of tv, His prices are very fair.My concern is the other tubes i usually could tell if the other tubes looked ok. If he says they seem fine.And you like this tv it is worth fixing. Make sure if you do say yes you get a 1 year warr on tube and a warr on labor,

Im not sure if you got price with yoke assy to or just tube. It is very hard to put yoke in tube and have it adjust properly. make sure when you talk to him it
is a new tube and yoke assy , If not dont fix.

thanks doctor video ladingedgeelectronics.

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You may still have a convergence problem, but what you need to do is to make sure that all of the bias resistors have been checked. That is why I am against the old replace the STK392-110 catch all convergence repair line. However what I want you to do is actually troubleshoot this set. That will mean determining if the voltages on the convergence correction amplifiers are good, if the convergence coils are good and if the deflection yokes are good. You will need the schematic diagram to aid you with the task of troubleshooting along with a multimeter, and oscilloscope, and a signal generator. If you however do not have electronics experience, I would suggest taking the TV to a qualified TV repair shop. I know this might not be what you want to hear, but it is good advice.

I hope this helps,

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My projection tv sony 51 inch red out of focus

Your convergence output IC's have either shorted out or opened up, either way they will have to be replaced and possibly a resistor or two. One distant possiblity is the DCU or the Convergence Yoke, but most likely the IC's. You will probably want a tv repairman to do the repair as there is some soldering to do and some paste/ IC's to install/ calibrate. A repair like this could run from $300 - $500 for IC's depending on who does the repair, The Yoke or DCU would cost a couple hundred more.

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