Question about RCA 27F530T 27" TV

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No picture or sound.

I have good power supp.,good fuses, and no bad solder in board,no apparent heat or smell. I have power @ switch,at least the light is ill. as soon as you plug the unit in, and you can hear a faint clicking sound for a sec. as if a cap is storing power. But no pic. or aud. Why is power indicator on before I push power button? No change after pushing power button.

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Re: No picture or sound.

How do you know the power supplys good? Its probably whats always bad on these sets. If the horizontal output is shorted, the flyback is also bad. The the HOT is not shorted, take a scope and on plugging in the set make sure you have a drive waveform, at least 3 to 6 Volts PIV. If you have all the proper tools and equipment, this is an easy set to troubleshoot. If you dont and trying to fix it with a multi-meter alone, Sorry is'ent going to happen. A TV set is not a place to go into and experiment with. Its a solid state set so there are no user serviceable parts inside. Please! Take this set into a pro to be diagnoised and serviced before you end up hurting yourself and or causeing much more damage to the set then there already is.. Good Luck

Posted on Jul 30, 2006

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Re: No picture or sound.

Dave, see the solution I posted on the other thread, the one where you made the comment. This link should work.

Posted on Jul 31, 2006

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My picture tube tv is eight years old & now I get a good pcture fore only 20 minutes 'till it goes black

I would suspect one of two general things---one if the picture dims out and does not just cut out bad solder connections for the filament in the neck of the tube---a look there with set on will when bad reveal if this is the case.

Bad solder connections somewhere on the main board--this happens with age as the board expands and contracts from heat and then cooling down.

If not a do it yourself person it may not be worth a shop repair on a 8 year old set------

Let me know if need advice.

Nov 05, 2012 | RCA Standard (CRT) Televisions

2 Answers

TV cuts off


Offhand, initial suspects could be:
  1. power supply;
  2. cold solder or loose connection (heat related);
  3. internal protection circuitry kicking in.
A couple of question pls:
  1. any burning smell or crackling sound;
  2. was there any power surge or interruption prior to the problem;
  3. anything out of the ordinary;
  4. during the the 75 seconds that it is on, picture and sound normal?
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 22, 2008 | Broksonic CTGV-5463TCT TV

1 Answer

Hello. My tv will not turn on. I metered the power circuit as far as I could, and it looks ok. The fuse on the control board is good. The power switch meters good. When the tv failed I heard a small...

It sounds that the power supply regulator section or main board has the fault. Check it with the help of schematics. If you are not handy, seek any technician's support.

Jun 18, 2012 | Emerson EWF2006 TV

1 Answer

My Sony KV-32XBR35 start by making a sound and all LEDs on top are lit; there is no video or audio. After around 6 minutes it clicks and the Video mode only is ready to use. However after awhile power...

There is some loose or bad soldering on the printed circuit board of your Sony tv. These usually occurs with the solderings at the terminals of components which will heat up when it works. Some resistors in the power retulator side, and the terminals of the power regulator itself must be checked out.
Just pull out the power supply board, and check whether there is any loose soldering or not. Probably, solderings at the terminals of these board will get loose contacted, as the components in this section will heat up more than other sections. Usually, Sony uses STRs in the power supply sections, as they are very accurate in power regulating. If iny one of its terminal soldering gets bad, power regulation will be poor, and the system control IC, actually it is microcontroller, will detect the situatin, and will switch off the whole system, and that is happening now in your Tv.
More saying, the loose soderings are very difficult to detect, and I advice you to resolder the suspected and all points if you can, by applying a little more solder, without shorting the adjecent terminals each other. You must have a concept of soldering to do this work.
Check the low voltage power regulators fitted on the main board, usually numbered 7812, and 7808, which are three terminal small regulators, which supplies the secondary voltage to the main board ICs. They also will be screwed on ot a metal heatsink, as they also will heat up during working.

I'm sure that the complaint of your TV is due to some loose or bad solderings itsef. All the components are working, that is why you see intermittent picture on your Tv.
Just do the things as i adviced, and inform me the relult through Fixya. Feel free to get me through Fixya. OK.

Jan 08, 2011 | Sony KV-27V42 27" TV

3 Answers

Tv won't power on red LED blinks 4 times


Was there any recent power interruption or a thunderstorm recently in your area?

Mar 11, 2008 | Philips Smart 25TS54C 25" TV

1 Answer

There was a smell of something burning then the picture screen went black. When I press the on/off switch I get a click as if the tv is on but no picture.

You have a bad capacitor. Look for a 250 volt 2.2MF cap..this baby is dry. And check for a 25volt47MF also in the horizontal defelection. If the power fuse [glass fuse clipped into board] is good you can still save this TV. And if you can change the caps near the vertical IC do so, as these are going down!

Feb 09, 2010 | Curtis-Mathis CM27101S TV

1 Answer

No sound, No picture

The high voltage isn't firing up. Could be a number of things, but is most likely one of the following: Blown fuse, bad Voltage regulator, bad Horizonal output transistor, Bad solder joint(s) on any of the above.

Sometimes the whole power supply PC board can be replaced as one unit. There's Company called PTS Corp that rebuilds boards and will trade you for a price. They are very good at what they do. You would need the numbers off the existing board.

If you decide to look at it, please be careful. The high voltage can exceed 30,000 volts and capacitors in the set can hold a charge for days.

Hope that helps...


Mar 27, 2008 | RCA D52W15 TV

1 Answer

TV problem

Bad solder connect inside tuner = un- solder tuner from
PC board and solder bad connect or replace tuner with new..
I.F. block next to tuner should be soldered,also.......T.

Dec 08, 2007 | Sony KV-13TR28 13" TV

3 Answers

Toshiba CF30E50 TV shuts off

Best first step is: Good visual inspection = look for hot spots
on PCB, check caps in those areas + solder any/all bad connections,esp. low voltage regulator pins.Look the whole
board over with magnifier = solder,solder,solder...T.

Oct 25, 2007 | Standard (CRT) Televisions

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