Question about Panasonic PT-47WX53 47" Rear Projection HDTV

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No Picture_Panasonic PT-47WX53

It seems like I have the same problem as you described to another member, something dealing with the high voltage system. The picture suddenly went out and now I have sound but no picture instead I have a faint line down the middle of the TV. Do you have an estimate of how much that would cost? Yatrik

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  • tinyfeet Nov 03, 2007

    I have the same problem as a few of you. My tv still has great sound but a rainbow of the few colors through the middle of the set. What can be done? Is it a simple fix job?

  • Dj9926 Nov 14, 2007

    I am having the same problem... I'm using the service manual and checking capacitors with a multimeter only. First I though it was around the horizontal output transistor, but now I am looking around IC801 in the power supply. Can you be a little more specific on which capacitor. Your help is greatly appreciated. Thank you



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Your problem lies with one single component that has failed. It is a capacitor in the HV area that is either shorted or open. The part is quite cheap and should only require one hour of labour. Judging by the labour rated these days, you should not expect to pay more than $100 for the repair.

Posted on Sep 06, 2007


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Picture dark...can barely make out people hitachi 57gwxz20b

Did this happen suddenly, or has the picture been dimming gradually?

If it was a sudden onset, I would first suspect the high voltage terminal/focus divider block. The focus divider in many sets also produces the "screen" voltage, which has an effect on the brightness of the picture. Often focus dividers will crack when they fail, so you may be able to spot a problem with this part by visual inspection. Other possibilities include an incorrect (failing) supply voltage to the picture tube boards (G1, G2, or driver transistor power).

Gradual dimming (other than problems with degrading components in the power supply):
Do you have a smoker in the house? The tar in tobacco smoke is attracted to the high voltage on picture tubes. You may need to clean off all of the optical components. I have found that window cleaner sprayed on a soft paper towel works for this. Do not spray the cleaner inside the set, and don't make the towel dripping wet with the cleaner! You risk serious damage to the electronics if you do. Avoid scrubbing - you don't want to scratch anything or push it out of alignment. Just keep wiping gently and let the window cleaner do its work. If tar buildup is the problem and it is as far gone as you describe, you will probably use up quite a few towels and a sizable fraction of the window cleaner bottle before all three picture tubes are clean. Don't do more than dust off the sides of the tubes - it's the face that needs cleaning, and window cleaner is bad news

Another possibility is broken-down CRT cooling fluid. (This is low probability - you would probably have noticed the colors going to an ugly yellowish brown long before it went dim.) When you look at the top of the three picture tubes, you should be able to see that they are red, green or blue. If the colors are quite dark, dull or muddy-looking, the CRT coolant has gone bad. It is possible to change it, but be warned that you must not let any drip into the electronics. Broken-down coolant can conduct high-voltage electricity, and the results are disastrous - I've seen a power supply board ruined by the stuff.

Oct 01, 2010 | Hitachi 57GWX20B 57" Rear Projection...

1 Answer

My screen went dark suddenly, when I try to restart my computer the screen is tinted red before going dark again. The screen is not completely black as there is letter visible underneath.

From what you are describing, it sounds like the inverter board is failing. This board sits under the LCD screen and is responsible for taking the DC voltage from the battery and AC adapter and converting that voltage to high voltage AC power for the backlight lamp that sits inside the lcd screen. Without that high voltage the screen goes dark. Most inverters do not fail right away, there are voltage fall offs etc. Inverters are approx. 15-20 bucks on ebay, for most laptops, they can be changed out simply by removing the bezel around the screen, unplugging the two connectors on the inverter and changing it out. In most cases except Dell, the inverter is just sitting in there and is not held in by screws.

Nov 30, 2009 | Toshiba Satellite A100-S8111TD Notebook

1 Answer

Was watching tv and it suddenly went blank. I hear it turn on but no picture or sound. What might be the problem and how costly to repair

sounds like a high voltage problem, could be the horizontal driver or something in the high voltage section.

Sep 14, 2009 | Hitachi 35CX45B 35" TV

1 Answer

Tv went off and won't come back on.

the arcing sound is some kind of high voltage leak, which will shut down the tv. pull the speaker grill off and the access board, look at the 3 picture tubes, turn the set on you will see where the leak is, it's usually the high voltage splitter, which has a high voltage wire going into it and 3 high voltage wires coming out going to the picture tubes, if it arcs from the splitter you need to change it, if it arcs from one of the picture tube wires you need to pull the tube out and fix the high voltage leak, and possibly a cooling fluid leak caused it, not an easy reapir, you probably need a repairman.

Sep 08, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Microwave died

microwaves have this fuse for protection, if it is blowing up, there is a shorted part in your microwave, it could be a diode, the magnetron or the high voltage capacitor.

be careful in dealing with microwave ovens because they store high voltage ( even unplug for a long time ) which may be fatal if you do not know what you are touching.

if you know what you are testing and knows how to test them, then i suggest you test the diode between the terminal of the high voltage capacitor, the high voltage capacitor for shorted terminals, and the magnetron by taking it off and inspecting the metal at the tip of the magnetron. it should be shinny and no sign of metal burning or arcing.

tnx 4 using fixya,


Aug 31, 2008 | Microwave Ovens

1 Answer

RCA 32 in TV no picture no sound just a beeping noise TV power is on

Hello cote,

This indicates a problem in the power supply either the low voltage switching supply or the High voltage power supply. The sounds you hear is the shutdown circuit activating, I would not suggest that you try to repair this problem because of the dangers involved. I would suggest that you take it to a qualified TV repair shop. This problem should not cost you much, however it is the best choice for the problem you described.

I hope this helps,
Thank you,

Mar 14, 2008 | RCA 32V524T TV

1 Answer

RCA 36" TV - High Pitch Sound - No Picture or Sound

check for high voltage s3ection of your TV. A Flyback transformer is defective especially in the high voltage cale of your flyback....

Oct 19, 2007 | RCA 35V432T 35" TV

1 Answer

No pic

Sounds like a high voltage issue and/or a power supply problem.

Mar 05, 2007 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Very Dark Picture

This sounds like a typical problem in the sweep power supply.. theres a filter capacitor for the CRT screen voltages that is most likly open or changed value. the first clue is that you get all your colors on the convergence. this is a high voltage circuit and should not be messed with by the user unless they have solid state repair exoperience and know all the high voltage saftey factors involved. Please call in a trained tech to assist you in this matter. Good Luck

Oct 08, 2006 | Toshiba 42H83 42" Rear Projection...

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