Question about Sharp 27N-S100 27" TV

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SHARP MODEL 27N-S100

NO SCREEN VOLTAGE FROM FLYBACK, NEED PART NO. FOR FLYBACK AND SOURCE FOR FLYBACK.
HAVE HIGH VOLTAGE AND SOUND NO VIDEO

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This company can supply it to you.

Sharp 27NS100 Flyback Replacement

Posted on Jun 19, 2008

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Flyback part number RTRNF0033MEZZ

Posted on Apr 14, 2008

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Sony KP-57WV700


Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads.
Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself
The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition.
Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!

Jul 02, 2012 | Sony KP-57WV600 57" Rear Projection...

1 Answer

I have LG CRT monitor 17 inch .when i switch on my crt it start sparking sound but not actual spark . the sound was so iritating & sparking shows on screen but not inside the monitor. So what was the...


hi,
You have to replace the flyback transformer of your monitor. Its a high voltage stepup tansformer which provides necessory volteges for the picture tube like Anode voltage, screen voltage and focus voltage. After some years of use the insulation stength of the flyback transformer will become bad and the high voltage will try to discharge trough the nearest ground poit. At that time you will hear the sprking sound. Its because of the high voltage Anode volt is discharing to the ground it will reflect on the screen. Using the monitor in this condition will result in the failure of horizontal driver transistor and even the power supply. Replacing the flybalck will solve your problem.
ok

Aug 02, 2011 | LG Studioworks E700S 17" CRT Monitor

1 Answer

No sound or video,only a crackling noise.rca 27 inch entertainment series tv model# f27442 chassis# ctc203ad5


Problem in the high voltage circuit, check connections on flyback transformer and high voltage diodes on flyback to see if shorted,

Apr 25, 2011 | RCA F27442 27" TV

1 Answer

The screen is black. I have sound but no picture.


Hello,
If everything else works - there is sound and high voltage (static on the screen) - but there is no picture (including no on-screen menus), this limits the likely area of problems is the video output circuitry or CRT filament connections. Check to see if the CRT filaments are glowing. If they are not glowing, check for bad soldering on the CRT neck board and around the flyback transformer.

Where the picture is erratic - coming and going entirely or changing brightness suddenly, with power off, remove the picture tube socket (carefully!) and clean the pins with fine sandpaper and use contact cleaner on the socket. This source of bad connections can result in a variety of erratic symptoms. Check for bad solder connections on the CRT neck board.

Jun 01, 2010 | Televison & Video

1 Answer

No picture


hello,
If everything else works - there is sound and high voltage (static on the screen) - but there is no picture (including no on-screen menus), this limits the likely area of problems is the video output circuitry or CRT filament connections. Check to see if the CRT filaments are glowing. If they are not glowing, check for bad soldering on the CRT neck board and around the flyback transformer.

. This source of bad connections can result in a variety of erratic symptoms. Check for bad solder connections on the CRT neck board.

May 27, 2010 | Proview PA-32JK1A 32 in. LCD Television

1 Answer

Panasonic TV has blank screen with retrace line


retrace lines usually means screen voltage is to high . that could mean bad picture tube.or flyback.

But there is something you could try. Be careful high voltage.on the back on the flyback transformer there to adjustments screen voltage and and focus go slightly counter clockwise or in your case clockwise that pot addustment will make it darker or lighter.If this does not fix it you have a flyback oy tue problem.
I hope this helps thanks doctor video leadingedgeelectronics 1987

May 03, 2008 | Televison & Video

1 Answer

No video signal ,flyback lines on my 29pt philips


help is here. back off that screen control tell them lines go away.

you have these things working Powersupply, Vertical, High voltage, sound, leaves video problem , go the the video circuit on schematic and find the video out transitor or ic or whatever they use, check to see if proper voltage or better yet see if got video with a scope, I see allot of shorted video out transistors.
also check and see if you can inject video with a vcr out to the tv in.

Jan 02, 2008 | Philips 32PT6441/37 32" TV

2 Answers

My tv rca


there is loose contact on the high voltage section in your tv.what you are going to do is open it,and reheat  with soldering iron and a piece of soldering lead the video chroma section and the high voltage section,near the flyback

Oct 23, 2007 | RCA 32F531T 32" 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

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