Question about RCA E13209BC TV

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Turn on set hear high voltage start up, but then shuts back down. i then hear a thump, thump in the speakers. there is 163v on the horizontal output transistor

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  • vernon johnson
    vernon johnson Nov 19, 2009

    thankyou for your answer, but i would like to pin point the problem. over a period of a few days i could run voltage checks and resistance checks and i would find it. i am trying to fix it kind of quickly.

  • vernon johnson
    vernon johnson Nov 19, 2009

    i have access to an oscope, mutimeter,esr and loads of other electronic equipment. i need to get a pin point of the exact area of the problem. whether it be horizontal, vertical or other circuit. if i can get a little closer than where i am i would truly appreciate it. there is 164v in the power supply and in the h.o.t. of the board, so i am assuming that my problem is not generating from these areas. it gets high voltage across the screen i can feel the static. it just cuts off and then starts thumping in the speakers. please help. i have installed a new h.o.t.

  • vernon johnson
    vernon johnson Nov 19, 2009

    5 stars for ladywinn. that was the problem it was a 100uF at 35v. you are the bommmmmmb!!!!!!!!

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  • RCA Master
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Look for Bad capacitor near FBT flyback transfomer 47uf 200v or 100uf 100v also resolder all pinns on FBT

Posted on Nov 19, 2009

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  • Master
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Its a problem in the power supply board.the components in the board are getting short so the board overheats and the tv shuts off.
for first unplug the main power cord of the tv for couple of minutes and then reconnect it.also before reconnecting the power cord of the tv again remove all the external device wires connected at its back such as dvd player/vcr etc etc.just connect only tv wire and check out.if still the same problem then its quite possible that the capacitors and ic on the circuit board are getting short in between so the circuit is not getting completed and cutting in between so the tv power led comes but no picture comes up..in this case the circuit board needs to be checked with a multimeter.the faulty and burned out component part should be detected and then should be replaced with the help of soldering iron.to make it proper.to avoid further damage i suggest you that do not on the tv again and again as it will short some more tiny components and the reparing cost will increase as per that.at present its the normal circuit short problem in the tv get it repaired before using the tv again.
also you can get new replaCEment power supply board.this clears the problem completely.
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you can get the required board and components at ----- www.partstore.com -------- or from ------ www.radioshack.com ----
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if you are not familiar with doing this you can get it done by local tv repair technician familiar with this model tv.
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This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

Posted on Nov 19, 2009

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2 Answers

TV suddenly turned off. Will not come back on. Makes "clicking" noise


You are likely hearing a protective relay connecting/disconnecting the AC in.
Often caused by a shorted horizontal output (flyback) transistor and also can indicate that the transformer (flyback) that produces the high voltage and horizontal drive signal has died.

Parts for CRT sets are becoming harder to find, you might consider replacing your set at this point.

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Hi, It appears that your unit has switched to protective mode (hence also no HV). When you unplug the set and "speakers thump", that would mean that the low B+ is still active and your SMPS is good. Your post "No high voltage" leads me to believe that you have a fair idea of working inside a TV. Should you venture to do-it-yourself (of course the standard precaution when working with TV units specially HV section), try checking: 1. an inductor/coil supplying the main B+ to the horz (probably L14???), resolder fully; 2. the Horizontal circuitry with special attention to the HOT (TL0?) and the FBT. It may also be a good idea to have the FBT ring tested. Other than above, it's the usual check with your VOM with attention to B+ line. Hope this be of some help/idea. Good luck and kind regards.

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1 Answer

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You've lost the horizontal deflection circuit. Most likely the horizontal output transistor and high voltage
(flyback) transformer. When this happens this power supply tries to start but shuts down because the Horizontal output transistotr is shorted.

Stargazer

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1 Answer

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you hear what? is this sound a high voltage static? The fact that you have flashing light means the main fuse is good and your processor is receving power. THe processor is detecting a shutdown situation that causing it to shut down for safety. high voltage situations are the primary causes. but it can be one of about 20 conditions. at the shop we have a computer that reads error codes much like a autombile. the primary things to check for are a shorted horizontal output transisitor. if you hear a high voltage static then it means you tubes are trying to fire but are drawing to much current.

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1 Answer

GE D52gw12


The set is shutting down to prevent further damage. There is a problem with the high voltage circuit. The most common failure part is the horizontal output transistor. Figure on $20 or so for parts plus the local labor rate to get the total repair cost.

Dan

May 30, 2008 | GE Televison & Video

2 Answers

CTR Television will not power up


What has happened is that the horizontal output transistor has shorted. The squeal you hear is the power supply running under a heavy load. The picture narrowing or being distorted indicate that the horizontal output was not operating clean. Something in the output section was not as it should be. Possible short in the output transformer/tripler unit or something loading down the secondary voltages generated by the horizontal output. You will need a tech to figure this out....If you are not a tech, then this ones a goner as far as fix it at home goes.....If you are a tech I might be able to talk you through the repair. Have someone remove the horizontal output transistor and I bet the squeal goes away.

Feb 10, 2008 | Televison & Video

1 Answer

Will not power up


Hello BTMAN,
This sounds like a HV shutdown problem. I would check the IHVT (Integrated High Voltage Transformer) and the HOT (Horizontal Output Transistor) for shorts. This is a common problerm
I hope this helps, Thank you, Shuttle83

Jan 07, 2008 | Toshiba 32A33 32" TV

1 Answer

TV makes a reoeated cricket sound & won't turn on.


You have a short somewhere in your set. Most likely the horizontal output transistor.The sound that you are hearing is the power supply being overloaded. If the horizontal output is shorted, you probably have a bad flyback (high voltage) transformer. You need to have it checked out by service tech also ask for an estimate. Stargazer

Mar 25, 2007 | Memorex MT2271 27" TV

1 Answer

Collector on horizontal output is 75 volts momentarily then to 0 volts.


Never measure the collector of the horizontal output transistor. When the set is on that voltage is spiking upwards of 1000 volts and could seriously damage the meter and possibly shock you. Measure the B+ pin on the flyback instead, it should be 135 volts. Usually what I find is that the flyback itself is shorted, so when you turn the set on the B+ comes up and the horizontal output starts conducting, but the computer senses the extra current in the flyback and shuts the set back off. The red timer light on the front of the set will then blink a certain number of times to indicate exactly why the set has shut down. If you do not have experience analyzing the Sony shutdown circuit then have a qualified tech handle it for you.

Nov 07, 2006 | Sony KP-53V75 53" Rear Projection...

1 Answer

Sony kv27-42


Try removing the horizontal output transistor, and see if ther 135 comes back up. If it comes up a litle and shuts down replace the horizontal output transistor and the flyback transformer. But I must warn you of the extremly high voltage thats inside this set whn its even unplugged. Be carefull!! Good Luck

Jun 27, 2006 | Sony KV-27V42 27" TV

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