Question about RCA 27F530T 27" TV

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No picture no sound

This is my daughter's set and I have not looked at it.
I assume it may be a power supply failure and was looking for a schematic and parts list to determine if the power supply is a replaceable module or distributed within a larger circuit board.

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Replace the cpu of your mainboard and check the out put voltage of your dc power.

Posted on Jun 11, 2008

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1 Answer

NO SOUND AND NO PICTURE JUST A HUMMING SOUND


Most likely damage to the power supply of the set--if opened look for signs of damage on that board and especially at the filter caps there.
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1 Answer

RCA L46FHD37R repair


good luck getting parts or schematic for RCA but at least if open set look for puffed up caps on the power supply board like these:
4_18_2012_3_03_29_am.jpg

Apr 17, 2012 | Televison & Video

1 Answer

Tv will stay on for a few seconds and then cuts off. When it is on, there is no picture, only sound.


Possibble that you will need to look into the set for possible power related issues. look for possible dry soldering in the main boards, possible power supply failure to the mainboard.
Look for shorted capacitors, drivers or faulty soldering joints in the convergencce IC/ failed IC.
Check voltage when set powers and on switch off. make a reading of the possible points for voltage difficiency.

Aug 29, 2010 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Replaced the dell 8400 power suppley, -now system says floppy disk failure (I don't have a floppy) CD R/W have power, but don't work? Is there a schematic available?


Hello my friend probably is a bios setting,somehow you hit default settings or flash your bios and you turned it on.Go into bios(hitting del on boot) and on the general page there will be a setting for a floppy drive, likely something like floppy 3.5" 1.4mb choose it and hit enter and you should be able to disable the floppy drive.If there is no setting, look for a HALT ON ALL ERRORS setting and change it to keyboard onl.

Feb 06, 2010 | Dell Dimension 8400 power supply ** FREE...

2 Answers

Rca 42 in lcd it shuts off 5 sec after being turned on


This could be a power supply problem, these tv's use a series of switching mode power supplies usually mounted in the same circuit board , the light flashing is an indicator that this is the problem, but these boards are expensive so you may want to get the tv looked at before anything else. You do not mention if the sound remains in your description of the symptom, but just in case it does then a back light inverter could be at fault. hope this helps. thanks for leaving you feed back.

Aug 27, 2009 | RCA L42WD22 42 in. LCD Television

1 Answer

Samsung ln-t4671f clicking - and won't power up


This is common problem of the 46" LCD. The power supply board has caps defective. You can open the case, look for the power supply. Normally, you will see the two small caps pop up. Replaced those caps, the TV may work again. If it does not work, those FET transistor in the board have been damage. You have to replace the whole board. The board cost $150 or so. You can order direc from SS. Go www.samsung.com//us then look for Support icon. Good luck
PS: Circuitcity still sell stuff by website, you can go there and found complain.

Aug 14, 2009 | Samsung LN-T4671F 46 in. LCD Television

1 Answer

No Picture & No sound. Red LED, Green LED, Red LED.


If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Jan 14, 2009 | Akai LCT2660 26 in. HD-Ready LCD...

2 Answers

LG RZ32LZ55


There could be two possible failures:
1. The backlights are defective (not a common failure for a 14 months old LCD) or the backlights driver/inverter is defective.
2. Power supply failure(very common failure on LCDs) will cause the symptoms you described.

May 22, 2008 | LG RZ-20LA70 20 in. LCD Television

1 Answer

Color flickers off and on


Most of the time TV problems arise by power supply noise. This noise in the supply is usually caused by Electrolytic Capacitor failure. If you are technical, you can get the schematic and look for the voltage regulator circuits. Measure the voltages with a DVM using both the DC and AC settings. If the DC setting is lower than normal, you will probably see about .5 to 1v of AC voltage on the line. Look for the large capacitor in the regulator circuit and replace them. Cost about  $.50 each. Get new caps with slightly higher voltage rating (if they will physically fit).

Good Luck

Oct 16, 2007 | Mitsubishi VS-45609 TV

1 Answer

Lost all control......dead


Thats an idication that theres a problem in the power supply or the sweep supply. I have seen the picture tubes to leak in this model and cause the boards to short out. These are the type of sets that unless you know what your looking for, Im sorry to say your not going to find it. Your goingg to need a schematic diagram, If you do not know solid state repair or dont know how to read a schematic Im afraid your going to need the assistance of a trained tech for this repair. There is no quick fix Im afraid. good Luck Ps dont forget to rate this please.

Oct 14, 2006 | Sony KP43T75GRAY 43" Rear Projection...

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