Question about Philips TS3661C 36" TV

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Fading fast I have two problems with my set. 1. The picture ocassionally pulses. It very gently shrinks and expands. 2. Every once in a while it just turns itself off. It comes back on to the same channel, if I press the power button on my remote. If I need parts, where can I get them. Thank you for any help you can give me.

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Re: fading fast

It looks me that thare is a loose contact in your power sypply section of your tv. both the problems will be okay if it is rectified by a skilled tech.

Posted on Sep 27, 2007

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The picture on my old panasonic tv fades. It becomes lighter and lighter and then has thin white lines across it. The picture comes back when the set is turned off and then on again but then the picture is...

A competent tech with one particular instrument, a capacitance meter with DF, could find the problem quite quickly. This is normally caused by a decayed electrolytic capacitor in the high voltage circuit. Once their capacitance value shrinks and loss increases, their function becomes marginal and falls to inadequate once they are warmed up by surrounding components. One possibility for DIY troubleshooting requires a can of 'freeze spray' available from Radio Shack or other electronic parts sources.
NOTE: Removing the back housing from your set exposes dangerous high voltage points so keep one hand in your pocket while trying this! Place a large clean towel over the innards otherwise it may not get warm enough to find the failing part. Turn it on and wait for the fading to start.
Remove the towel. With the guts exposed, look for a large (nearly always) black device. This is the 'flyback' transformer. There will be a largish transistor on an aluminum heatsink near it; avoid touching this, it's hot and operating at high voltage!
Look for cylindrical parts with black or blue (rarely red) 'heat shrink' plastic surrounding them; nearly all of these will be capacitors.
From a safe distance, spray each one of these for several seconds while watching the screen in a mirror. After each is sprayed, wait 5-10 seconds for the temperature to change from the spray. There will be a lag between spraying and effect so be patient.
If you find one that has some influence on the picture, wait for a minute or two and repeat the cooling to make sure you have the culprit.
Once sure, turn off the set, allow a couple of hours for the voltages to drop to a safe level, look for the values on the part you isolated: there will be several numbers and letters. If convenient, you could take a picture of it to show a parts store to get a replacement or comment back here and I will tell you where you can buy/order it.
The numbers/letters, these are ONLY examples: 22uFd. 50VDC & maybe a tolerance with a plus + and a minus - sign, +20 -10, these are percentages. There may also be a + sign near one side (pin) or it may have the word: BIPOLAR on it.
You will need a small soldering iron to replace the part(s) and a bit of quality solder, also from RS or a parts store. If they have solder 'wick' this will let you absorb the old solder and remove the part without board damage.
I wouldn't have taken the time to give you such explicit instructions but your set once repaired, will again last longer than a new 'flat panel' bought today; their reliability has not been good and the warranties are short.
You can verify the number of problems by entering 'LCD' or 'Plasma' or 'Projection TV' in the FixYa search window.
Good luck-

Oct 18, 2009 | Panasonic Standard (CRT) Televisions

2 Answers

Generic problem for all Standard Televisions

your problem is from east west ckt . there is a transformer used in this ckt which Dry solder and works inttermittent ( shrinks & expend ) . resolder this transformer . iam working with philips ......... enjoy

Sep 21, 2009 | Standard (CRT) Televisions

1 Answer

I have a GE TV model: 27GT271 and no sound

Possible cause of the problrm is bad/poor solder on the grounds for the tuner circuit shield an the bottom (solder side) of the circuit board. Grounds need a wire jumper from point to point. This was a common problem for those sets and ocassionally it would take out the eeprom chip with it. (Various other problems were shrinking picture/fuzzy picture and intermitt. power)

May 14, 2009 | GE 27GT271 TV

1 Answer

Picture size is shrinking within screen

hi there, you have vertical section prob., repalce imeditely the electrolytic capacitor at the vertical section. do some test and check up. ty

Feb 18, 2008 | Philips 27MT3305 27" TV

3 Answers

Picture tube problem

This problem indicates a defective vertical IC or dry solder joints on the IC connections.

Jan 27, 2008 | Standard (CRT) Televisions

1 Answer

Sony kv32s42 trinitron color tv blinking

sounds like a bad picture tube. Picture and bright settings cranked up for a good pic? Test/rejuv with a crt tester and/or look at the Ik signal on the crt board. A good tube has 3 small pulses during blanking. The crt cathodes are checked with these pulses, pulses too low and the jungle IC will blank the drive. If the picture fades in and out I would check the filament ckt but that doesn't support the "blinks"

Oct 30, 2007 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Help please

I had the same issue. The screen would shrink and then expand over and over. After thrity minutes it would correct itself.

After a few months of doing this it just broke - no sound and no videe but the power light was still on.

I searched these forums but did not find clear instructions or kits on how to fix it. I gave up and called in a repair tech. He fixed my TV in less than 30 minutes.

To help others I documented the fix and created a repair kit and step by step quide on how to fix the problem. You can find it here.

May 13, 2007 | Philips 9P5031C TV

1 Answer

Picture Shortens, Converges, eventually the set shuts off - $50 for Correct Solution

Open the TV amd turn it on in a position you can see the picture, possibly through a mirror. Now gently tap all of the metal heat sinks on the circuit board until you find the one that is sensitive it will have a small chip mounted vertically on it, with probably like 7-10 pins. The number on the chip will most likely be an "LA****" number. Now turn the circuit board (UNPLUG FIRST) over and resolder the pins. This is your problem 99% of the time. Be very careful there is High Voltage inside this TV.

Apr 26, 2007 | Zenith IQB36B42W TV

1 Answer

Picture is shrinking from the bottom

Hi you have lose solder in yor vertical section have a tech resolder it or that problem will cost you .hope you have already have it remedied.

Nov 14, 2006 | Toshiba 36A40 36" TV

2 Answers

Picture Shrinks

It is in the power supply or I would guess most likly in the horizontal sweep section of the tV set. MOST of the time, if the power supply is going lower in voltage, the set will shrink in width,BUT will also shrink in vertical size. If this is not happening, then I would say it is in the horizontal drive circuit. This is not a circuit a user should be experimenting with, as this is the HIGH VOLTAGE circuit and can pack a mean punch! Please if the sets less the 4 to 5 years old you may want to concider an estimate or replacing the set. Its all up to you. GOOD LUCK

Oct 07, 2006 | Philips 8P6034 TV

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