Question about Philips 27PT543S 27" TV

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Power on and yet picture flicks and powers it's self off (over and over again)

TV is just short of three years old. And I can see from this and other sites I'm not the only one experiencing this problem! I power tv on, and it comes on all fine for about a second or sometime on a good day, a whole minute! Then the picture starts to twitch and decreases down to a 10(w)X 17 (h) picture then blinks (clicks) off. This has just began this morning and of course just out of warranty! When the picture goes out the green power light remains lit, if I push the channel changer on the remote, it moves the station up comes back on (with picture) then goes back out again???? Help! I have unplugged and left unplugged for several minutes, and no change. At this point it will only make a good boat anchor, paper weight or click sound creater! Or possibly a good class action case against Philips!? What ya think? Any solutions, advise or counsel willing to accept challenge? Please help and Thanks

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Re: Power on and yet picture flicks and powers it's self...

Hello there, I'm having a major problem with my TV, I have called all of the local TV repair shops and they all are the same, they want money money money before they will even speak with me about the problem I'm having. This is the only TV in my entire household for a family of 4 and we desperately need the TV in working condition for our kids. I don't want to have to put out $500 for another set if I don't absolutely have to.

The Problem...

About 3-4 months ago the TV when turned on, the picture would slowly come into view and be very scrambled and before the picture would come into complete view the TV power would shut itself off, but the power light would remain on. You can hear the "Click" noise when it would shut itself off.

2-3 seconds after it 'shut itself off' then the TV would make the "Click" noise (The same noise it makes when you first turn it on), it would make the "Click" noise over and over and over again but nothing would happen. So i would turn it off and on again and change the channel rapidly until after 2-3 minutes it would come into view and work.

So we decided to leave the TV on 24 hours a day. Then today we awoke and it was off and making the "clicking" noise over and over and over again but with no picture or sound. Now it wont even turn on/off it just sits there and goes "Click, Click Click Click" and doesn't do anything.

I described the problem as best as I can. Here is the TV information and specifications...

Philips 27 Inch Tube TV

Model Number... 27PT54 3S37A

Serial Number... 78438404

105 Watts
Date Code March 2003


Now that I typed the model number there are threads everywhere people saying the same issue exactly as me, I will read them but please someone tell me is there anything I can do...
Can anyone explain exactly what is wrong with the Tv and why it's doing this?

Also, what should I expect to pay to repair it?

Any information or help would be appreciated very much.

Thanks in advance,

Just got off the phone with certified Philips shop...they said they will repair it for $100-$130 with a $25 down payment just drop it off and he will call me when its done. Does this sound like its worth it or a rip off?

Posted on Sep 23, 2008

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Re: Power on and yet picture flicks and powers it's self...

Turn it on and off rapidly, or flip channels rapidly for five to ten minutes to "warm it up". Temporary solution at best, but at least you can watch TV on it then! I have this model and have had the same exact problem and it worked for me.

Posted on Nov 11, 2007

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Re: Power on and yet picture flicks and powers it's self...

Usually more than soldering!! Look for slightly over-heated area,then locate/replace bad cap value=47mf/25v.In same area,replace two xistors. BC-327-25(on body of xistor) use BC-328. BC_337-25(" " " " ) " BC_338.

Posted on Oct 03, 2007

Re: Power on and yet picture flicks and powers it's self...

First it's not just Philips, they all are making TV to only last a few years now, they are not made to last, thats how they make money by selling you something you will have to replace in just a few short years. As far as your problem, you may have a cold solder joint somewhere, do you have a 25/35 watt soldering iron? if so try soldering pins on the regulator IC the vertical IC the horz output transistor and drive transformer and the flyback, in fact solder just about as much as you can, spend some time in there soldering. Dont forget to ubplug the set and stay away from the high voltage anode connected to the picture tube, it can still hold a charge even if the set is unplugged, do not try to take it off. Hope this helps!

Posted on Sep 28, 2007

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1 Answer

I have a 6 year old(nov 04) Sony KV-30HS420 that turns off all by itself. The screen goes to green and the picture fades to black. The sound will keep playing for a few seconds then the TV will turn itself...

If the screen goes rather bright green it is one of two things:

1. It is possible it is a shorted green gun in the picture tube, there are three of them, red, green and blue guns in neck of the tube.

2. The other possible reason is there is a problem on the small circuit board at the end of the picture tube, this model should use three IC chips, one for each red, green and blue.

Being intermittent makes it hard to tell but ask the shop if they tried the self check this set should have. With the set turned off use the original Sony remote and hit Display, 5, vol down, and power.

If the set has a self check (it should) a box will appear on the screen with up to five items with a zero to the right of each, items will be like AKB, OVP, etc, and if any have something other than a zero to the right it pinpoints what happened.

Sets with this feature record each event where something goes wrong, ANYTHING other than a 0 indicates what failure was detected.

If I was to make a guess there will be a number next to AKB, which is Anti-Kine Bias, this means the picture tube or something on the board at the end of it drew too much current and the set's shut down circuit turned the set off.

I actually fixed one of these where both the blue and red IC chips on that board were bad, needless to say, I replaced all three of them.

Any good shop would know about the self check and even if the set did not shut down in the shop the self check would point to the area where the problem is.

Let me know if you need more help or find a error code.


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1 Answer

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Does it make a squeal sound while plugged in to power? If so, possible horizontal output shorted. $150-$200 about.

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Hello I was watching my 27 inch tv and it went off by it self and it wont come back on what could be wrong with it

If you have checked the wall outlet and it is working, then it is most likely the power supply within the TV.

If you are lucky, it may just be a lose wire connection within the back cover.

If you are so inclined, try removing the back cover and check the wires for loose connections, otherwise seek the help of a television repair pro.

If the TV is over 5 to 6 years old, repair cost may be expensive and problem could exist again in a short time period, you may want to consider the purchase of a new set.

If the unit has a picture in picture function, these are usually the first things to fail as I have had several of the same model/ brand do this over the years.

I finally just purchased a new one.

Often TV repair shops have repaired units in the shop you can buy very similar models for same or less than repairing yours, and often they will warrant their used on longer than your repair.


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Is is worth getting repaired?

Power supply mnay be out. Yes, get an essimate if you like first, but if it's less than 8 years old-get it fixed.

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hi there, there is a power supply section problem, do some test, automatic shutdown means a power supply section problem. ty

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Sony KV-32S36 32" suddenly stopped working, no picture or sound

Check soldered in fuse R607 in power supply circuit =
If open, replace it and bad converter xistors ( 2SC4834)
Next, replace shorted horizontal output transistor w/ first Quality.
Solder any / all bad connects,esp.horiz drive to base of horiz.
o / p xistor. Soldering is critical or it will blow up again......

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TV shuts off and red standby/timer lights blinks red until I power the set off. When it shuts down it does so with a very loud snap. When I turn it back on the screen is blue and has light blue...

The most common cause for what you are seeing is a shorted gun in the picture tube. When 2 elements (heater and cathode) of one of the guns inside the neck of the picture tube touch, that gun goes full on and overloads the flyback (high voltage) transformer. If it is in the blue gun, the screen will go bright blue with light blue "retrace" lines in it. The computer senses the overload and shuts the set off. At 2 years old the tech most likely tried removing the short by arcing between the elements. This works sometimes but the short often comes back a few months later. Another attempt at removing the short could be tried, and it might work this time, but it may or may not work for long. The ony other solution is to replace the picture tube but that would cost much more than the set is worth. A qualified tech will be able to tell you if this is the problem in your set.

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Blank Picture, Sound OK on Sony TV

Hello, there can be a contact problem in power supply, deflection or RGB stage. Please ask the tech to repair it for you. Best regards, Arpi

Apr 22, 2007 | Sony KV-27V22 TV

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No picture / No Sound / No nothing

that sounds like the Hi voltage transformer went bad.. If your a tech simply disconnect the horizontal output transistor and see if thats shorted. If it is then it is for sure the HV transformer. If its not shorted look in the main power supply. Its cost is around 40 bucks or so and the transistor is about 15 to 20 bucks. This entire repair should cost ya around 150 to 175. So if you decide this tv is the one you like then have it fixed. Good Luck

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