Question about Akai PT4298HD Rear Projection Television

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Snaping sound with arc flash

TV will not come on

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Have u tryed the fused it u didnt chagre it

Posted on Jul 27, 2009

  • Georgia123 Jul 27, 2009

    Have u tryed the fused it u didnt chagre it

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I have a Sony bluray surround sound and lg smart tv, I can't play my Apple TV sound through my hts, all my connections are hdmi and both systems have arc, please help?


Is your Apple TV connected to the Sony or directly to your TV? If directly connected to the Sony HTS ARC shouldn't be needed and you should have audio. If that's the case check the Apple TV settings to be sure it isn't set for s/pdif output. If connected to the TV then the TV should be able to put a s/pdif signal on the HDMI ARC pin but perhaps there's no way to assign it to the HDMI input coming from the HTS? It may be going to the ARC pin on the Apple TV HDMI input which won't give you any sound. Normally ARC is intended to put the s/pdif signal from the TV's internal tuner on the HDMI cable from the HTS so the HTS can play TV sound without having to tun a separate Toslink cable from the TV s/pdif output to the HTS. One other thing: Early HDMI cables do not include the ARC wire so be sure you have ARC capable cables. Look in your TV documentation to see if there is a way to assign the ARC output to a different incoming HDMI input if the Apple TV is connected directly to the TV. If not you may need to resort to a Toslink optical cable from your TV to an optical input on your HTS. Or actually running that cable from Apple TV to the HTS would be better since it's possible it could carry surround sound. Most TV's optical outputs are limited to the 2 channel sound the TV can accept.

Oct 22, 2014 | Audio Players & Recorders

1 Answer

Projection TV no picture flashing horiz arcs across top of screen sound okay


You will need convergence work to this unit. Not cheap.(Not recommended for DIY unless already experienced in this type work). Might contact a local servicer experienced with Toshiba & see if they can give you a quote over the phone. Be sure you are sitting.
This is probably a good time to consider entering the 21st century & look at LCD or LED flat screens.

Jul 24, 2014 | Toshiba Televison & Video

1 Answer

When I turn the tv on, it sounds like static electricity coming from the back.


Check its final anode connection for arcing. You have to replace the final anode rubber boot, if arcing is here. Seek tech support. This is a dangerous work, for an un-experienced one.

Jun 22, 2012 | JVC Televison & Video

1 Answer

Snaps are blurr when we switch off the flash....


Not familiar with this Camera, but does it have an Auto Flash setting which you can set so the camera will decide if flash is needed or not try this if it is available and see if that helps.

Apr 04, 2010 | Olympus FE-270 Digital Camera

1 Answer

When initially turned on TV will alternat between picutre & black


When the tv goes to a black screen does the sound remain on? Also,if you listen carefully can you hear any arcing noises in the back of the tv?

Aug 03, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

PT-50LC13 Lamp issue


i hope the lamp was panasonic or bought in a good place (average cost of this lamp is 250 dllrs)
if the lamp is trustfully. i would put attention in the back side when you listen the arcing that the lamp at least try flashing.

This moment of the repair where you are is critical because you arrive to conclusions according to the process you already did and suspect that what it is already done is fine (but is really true that lamp works plus is really true that the arcing is because the arcing devise arcs or is only the primary of the transformers in the ballast who holds 300 volts in the primary (really good voltage to make arcing sound too)
Now the error code is going to be 50 % good or not: i mean or gives you the error of the ballast and lamp or any voltage is missed in the power supply ( i don't have the error codes chart for you with me) because i would like to go far and the problem was in the same place where i started/

Apr 08, 2009 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

Snap Snap Pop


Probable bad IHVT ( aka flyback transformer ) part # 257805
or Asti 2078...................................T.

Nov 09, 2007 | RCA F32450 32" TV

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No picture


sounds like high voltage arcing,/flyback,focus block,h.v. anode lead etc.

Sep 07, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Poping sound, white specks and what looks like sparks


Possible arcing CRT or possible arcing IHVT part # 239111.

Dec 29, 2006 | Proscan PS50700 50" Rear Projection...

1 Answer

Loss of picture


one of the high voltage anode connections is arcing, usually as a result of sealer (rtv) having been incorrectly applied during manufactor. this may be repaired by a tv tech with application of rtv, or the crt may need replacing. DO NOT TAKE THIS TV APPART!! THE HIGH VOLTAGE ARC COULD BE VERY DANGEROUS.

Aug 22, 2006 | RCA D52130 52" Rear Projection Television

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