Question about RCA F32450 32" TV

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High Pitched wine when turning on

I have opened the back (carefully, know the dangers) and listened to pin point the wining sound. It is coming from the circuit board on a part with the following numbers: PN 1536335A D1 15363340 RXETCE02215 This part has a crack in it through the top black section. Overheated? The TV will not turn on with remote nor with the button on top. Just wines.... Is this worth fixing?

Posted by Mindseye on

  • 4 more comments 
  • Anonymous Dec 04, 2007

    I have the same problem and i did the same thing.
    I have the same numbers except for the 3rd line of numbers/letters
    mine is EXETCED2256

    I would like to know what that part is called, where i can get it, and how to take it off.

  • buzn8r Nov 06, 2008

    I have the same problem. At first I thought it was the Flyback transformer, but more careful listening revealed that it was this other transformer. I cannot find it anywhere. Where can I buy this part?

  • Anonymous Dec 03, 2008

    I have the same issue TV just stopped operating, I can not turn on or have any audio, the high pitched sound remains unless you un-plug the unit. I purchased the set on Jan. 03' and have had no issues up to this point. Did anyone find the part? Price? Thanks

  • Anonymous Dec 19, 2008

    I have the exact same problem. How do I fix this? What will I need to buy?

  • Anonymous Jan 21, 2009

    sounds the same to me, but is there anyway to fix it myself? A skilled technician would cost more than the tv!!

  • bajancodgie Feb 11, 2009

    I am a technician and i have the same prob with tv. the horizontal output is shorted but it seems as though the flyback is faulty also but not sure. thanks for any info given.



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I found the part (transfoemer) on Ebay for $15.00 + $7 for shipping.

Posted on Jul 12, 2010



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Yes it is worth fixing & not that serious. but please call skilled tech to fix it as high voltade is inside even it is off.if you are not a tech person.

Posted on Sep 30, 2007


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you have given me a detailed description of the fault of your Samsung TV. At first, make sure that the "mute" function is in 'OFF" positon. If it is in "ON" position, no sound output will be there from your TV as you know. If it is alright, switch OFF your set by its mains power ON/OFF switch at its front panel. You have to check this first. Keep your ear very close to the speaker side of your TV, and switch it ON by the front panel switch, and listen, whether there is any "Thumb" sound comes from the speaker or not. If there is sound, it means that the speaker is alright, and the sound output section inside the main board of your TV is faulty. If there is no sound "Thumb" from the speaker, the speaker has got damaged, and should be replaced.
The second step needs some skill in electronic work. You must have a good quality multimeter and soldering iron to proceed. Open your TV, and pull out the main circuit board out, keep it upside down, and check for any loose sodering at the audio output side in the circuit. it is a common fault to all kind of TVs that, loose solderings will occur after a long period of use. heating and cooling of these components in the audio output section will result in loose solderings at the termianals of componets. Just resolder most of the suspected solder point by applying a little more solder over it. Care should be taken not to short circuit adjecent sodler points when do this work. If this does not help you, measure the voltage at the input pin of the audio output IC. If it is found ok, desolder it out the audio output IC from the circuit board, and replace it with same type and number. OK.

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I have several computers at home, and none og them can recognize this portable device. Hitachi 250 GB Mod: SDM/250RW

1) Power:

It may be the problem that occurs with a lot of USB powered devices jrherrer. Not enough power provided.

The USB cable plugged into the computer, provides signal wires for transferring information back, and forth, and also provides 5 Volts DC for power. (Two D cell flashlight batteries produce 3 Volts DC)

[ Below shows the Signal pins, and the Voltage pins of the USB B Mini style connector, (Male), used to connect to the SimpleDrive Mini external harddrive,

Pin 1 is for the 5 Volts DC Positive (Wire color - Red)
Pin 2 is for the D- Signal (Wire color - White)
Pin 3 is for the D+ Signal (Wire color - Green)
Pin 4 is not connected. (Or sometimes joined to Pin 5 with a Resistor)
Pin 5 is for the Ground (Wire color - Black)

Just added info in case you wanted to know ]

From what I see the SDM/250RW has a USB port on the side, and a DC Power Jack, used for an AC adapter, also.
(Round port with a pin in the center)$file/SD_Mini_DS_final.pdf

From what I see stated from Hitachi, and sellers on the 'net, the AC adapter may not be provided.
Many of those who provide a review state that both the USB cable, and the AC adapter is needed to provide enough power. Seems to be a power hungry external harddrive

It's a 2.5 Hitachi SATA laptop harddrive inside that external case. (The Harddrive is 2 and a half inches across in Width. Common size used for laptops)

When using an external device powered by a USB cable there are general guidelines to follow,
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B) Connect the device directly to your computer, instead of through a hub, or other device, unless the USB hub has it's own power.

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Could be a faulty USB cable, although I imagine you have tried different ones by now.

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The Hitachi SATA 2.5 harddrive inside the SImpleDrive Mini SDM/250RW, plugs into a small circuit board located inside that external case.

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Loose from the interface
To explain;
The back of the harddrive has connector pins sticking out.
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Faulty circuit board
The external case of the SimpleDrive Mini SDM/250RW can be carefully opened up, and the Hitachi SATA 2.5 harddrive extracted out.

Another inexpensive external case for a 2.5 SATA harddrive can be procured, and the Hitachi harddrive put in it.

Example of a 2.5 SATA external enclosure,

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1 Answer

The picture is fine but the sound is not working. I push the volume and you can see where the volume level is going up. Have tried turning it off and unplugging it to try to reset it but nothing has...

Picture being Ok, and no sound output, means there is some problem inside the sound output circuit of your TV. It may be due to a speaker fault or an IC fault. You have to find out which of these has fault.
You just place your ear very close to the speaker side, and switch on your TV with its AC mains On-Off switch, not by remote control handset. Listen carefully, whether there is any sound output of any form comes out of it or not. If there is no sound at all you can determine that the speaker may be out, not in all cases. If you have the habit of listening your TVs audio by using a headphone, continious in-out action could damage your TVs headphone socket. If the headphone sockets' contact got damaged, no sound output will come from it to the speakers. Suppose you can hear the sound through your headphones but not throuhg speaker, means that its change over contact has some trouble. You just do this first. Insert a headphone pin into your TVs headphone socket, if provided, al listen to it for sound. If there is no sound from headphone also, Sound output Ic iside your TV has damaged, or not getting proper voltage to it. If there is sound through the headphone, and not from TVs speaker, trouble is related either speaker or the above said socket.
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Open your TVs back cover, and trace for the sound output section. There will be an Ic used as sound output. Check whether it getting heated some time after switch on the TV. If it overheats without any sound output, it is damaged Desolder it out from the circuit board, go for a same type and number, replacing it will solve the problem. If it doesn't overheat, or no heat at all, check its input voltage. In some cases, loose soldering points on the legs of Ic may also the cause. Check it too. Ok.
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Check the controller board, 6871QCH038A. This board is one layer deep into the assembly after the cover is removed. Gently lift the covering circuit board back plane to access.

To do this direct a blast of cold air unto the large chip in the center of the board. If the picture comes back on then you have found it. This means powering the TV while open and this means danger to the novice. Voltage can end your life when you become the circuit path.

Order Part number 6871QCH060Q as the suitable replacement part to this circuit board.

7060 State Road 84 #12
Fort Lauderdale, FL 33317
(800) 432-8542
Fax: (954) 723-9044

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