Question about RCA F27443 27" TV

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Sony PVM 20M4U slow start-up ~20 min

Have two of these monitors in the shop. One starts in about 10 mins, the other takes about 20. The start-up is in two stages: first, in maybe 5 to 10 mins the amber LEDS come on, then 10 to 15 mins later the video on input A shows up. Recapped the power supply in the long one; no help. In both, colorimetry, raster geometry is good once started. There are a gazillion caps on the A board. Once the boxes start and get warmed up, popping the on/off button brings the picture back quickly. Geez, I hate recapping!

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  • 236 Answers

SOURCE: Buzzing noise with no picture or sound.

The power supply is telling you that it has a short. I think you have a bad high voltage transformer in the horizontal deflection circuit. I've repaired several RCA's with this very same problem. The newer RCA's are vert prone to high voltage transformer failure ! Stargazer

Posted on Aug 20, 2007

  • 1694 Answers

SOURCE: power problem rca 32v434t

RCA 32V434T likely has a bad flyback--#271996. RCA 32F531T flyback no longer available,#262343 Fix one,dispose of other.

Posted on Sep 26, 2007

  • 4234 Answers

SOURCE: Sony PVM-20M4U

These will run a bit hot, but make sure you have enough compound on it. If the old stuff was dry, use a solvent to remove it and replace the compound with plenty of new stuff.
Dan

Posted on Jun 06, 2008

  • 1 Answer

SOURCE: My RCA 52" tv turns

once you remove the back cover from your TV, on the bottom left board there is a gray capacitor next to a vertical heat sink and it says KP 2000vdc this gets loose for lack of soldering after a while , remove the board turn it around and clean the area, apply flux and soldering put back on and your problem is fixed, let me know if this worked for you.

Posted on Dec 28, 2008

  • 8 Answers

SOURCE: Anyone know why the picture would shake slightly

Does this tv have hdmi input and if so does the problem exist there?
If so I suspect the av input board could have a problem.

Posted on Mar 07, 2009

  • 139 Answers

SOURCE: RCA 27V530T Powers up and plays perfect for about 5 min then shuts off

TRY SOLDERING THE POWER SUPPLY CIRCUIT AND THE HORIZONTAL DRIVE CIRCUIT

Posted on Dec 28, 2009

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Very long time to come on


if you have an idea in basic electronics, just remove the rear cover then look for the power supply. replaced electrolytic capacitor with tops to its casing, those are leaks and need replacement. then if you have an analog tester checked start up resistor had turned high ohm( increase in resistance value ).hope this can helped good luck.

Jul 22, 2012 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

I turn my sony trinitron off. when turn it back on it will not turn it will not come on for hours and sometimes a couple of a couple of days!


I HOPE AFTER FEW MINS OR HOURS OR DAYS when your TV gets on & picture comes then everything works normally atleast for few mins...then following is the situation.......after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - TV TUBE ) becomes weak - then 1 of the indication is ....it takes few mins ( in your case few hrs or days ---- very rare case ) for picture to appear...........so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching TV ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around US $ 10 & for my customers (in bangalore) i will take another US $ 12 as sevice charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact TV service engineer or sony service centre ------- because they are highly experienced & can fix this component very easily.....

Apr 21, 2011 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

After tv is on for approx 20-30 mins it starts to make a loud high pitched squeal or whine. once turned off for approx 10-15 mins can turn it back on for another 20-30 mins before squeal will return....


Sounds like a problem I had with a Polaroid t.v. Take the cover off the back and look for capactors that are buldging on the top. The top should be slightly concave. If they are convex at all, you can buy new one at Radio Shack and replace them for under $5.00

Apr 10, 2010 | Emerson EWF2004 20" TV

1 Answer

Sony PVM-20M4U


These will run a bit hot, but make sure you have enough compound on it. If the old stuff was dry, use a solvent to remove it and replace the compound with plenty of new stuff.
Dan

Jun 06, 2008 | Standard (CRT) Televisions

2 Answers

Tv screen goes black


No, if the picture of your tv screen is clear when when you watching. the troble of your tv is looseboard, and you replace your CRT socket too.

Apr 16, 2008 | Sony KV-35V35 TV

1 Answer

Picture goes on and on constantly


I have the same problem. Picture cuts out completely then back on. When I first turn it on, it does this constantly for about 15-20 mins, then about once every 30 mins or so. The sound is fine, but the picture just flashes on and off.

The color is also starting to shift a lot and cannot be fixed by adjusting COLOR-BRIGHTNESS-PICTURE in the video control menu system. Nothing seems to correct this. I've even unplugged the TV over night to see if it needed some sort of reset. Model = KV-20FV12. Purchased in 2004

My connection is a direct cable connection - Comcast cable. Same problem persist while showing a DVD as well.

Dec 18, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

Sony KV-32HX15U Flashing standby light


Hi. Thats a nice tv you have there. If your able to get free estimate from repair shop go for it. It could only be dry joints but it could be loptx & other components which could be pricey.

Sep 23, 2007 | Standard (CRT) Televisions

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