Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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PT5598HDI There is sound but not picture. There is no high voltage and the voltages around the IFT are way off.

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  • kqqd9m Apr 25, 2008

    Akai PT5598HDI could it be the IFT and/or the horizontal out put transistor

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  • Master
  • 934 Answers

More likely Icz103 & Icz104 the convergence amps. Are they heating at all?
Bill

Posted on Apr 26, 2008

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1 Answer

I have a HD52w59 and have sound but little to no picture


Most common problem on this set is bad solder connections at the High voltage transformer which if you have sound may be your problem.

If you are able to get that board out and resolder all connections to that part and right around it that MAY or not fix it--good place to begin.

Typical high voltage transformer





12_21_2012_7_35_05_pm.jpg

Dec 21, 2012 | RCA HD52W59 HDTV Projection Television

1 Answer

Got sound but no picture


If the model number listed here is correct either no high voltage is present or filaments to the 3 picture tubes it uses are not lit.

If a different model let me know, this one here is prone to all sorts of bad solder connections around the high voltage transformer and sometimes resoldering those cures problems

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12_14_2012_5_31_33_pm.jpgtypical high voltage transformer

Dec 14, 2012 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

My rca tv has a distorted picture and a really high pitched buzzing sound


Problem is in High voltage circuit and likely either the high voltage transformer or a connection right under or around it.
6_17_2012_3_19_04_am.jpg

Jun 16, 2012 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Hitachi 51f59a lost picture powers up and can hear sound amp come on when turned on and off but no picture


You may have a shorted horizontal output transistor. This transistor drives the high voltage transformer which in turn drives the picture tubes. High voltage can be dangerous so you may want to have a repair shop check it out for you. Also have them apply a bead of silicon around the anode caps on the picture tubes. This will prevent high voltage leaking out and causing the horizontal output to short again. Thanks

Oct 27, 2009 | Hitachi 51F59 51" HDTV Projection...

1 Answer

I have a 9p5511c the picture is blurry before that the tv would make a snapping sound the picture would fade out for a second then fade back in but never lost the sound


You have a high voltage leak, one of the three crt's are arching to the metal chassis, this will cause momentary high voltage loss so your picture will fade until the voltage builds back up again.

Repairing this is hazardous because the voltage in the crt's are around 30,000 volts even with the tv unplugged. I don't suggest doing this yourself.

A technician will do the following he will attempt to stop the leak with specially formulated silicone compounds, If this fails the only alternative is to replace the picture tube that is defective.

The cost of repair depends on if the tube will have to be replaced, the initial repair using silicone should not run more than the standard service call rate for the company servicing the unit. If it is picture tube the cost could be upwards of $400.00

Sep 05, 2009 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

AKAI PT5598HDI 55 Where is fuse located


This problem is beyond a blown fuse most likely. The fuses for the unit are located on the circuit boards and the back will need to be removed to access them. This problem could be due to a missing voltage that is used to turn on the picture section of the electronics. I would search for a used unit on ebay or parts on ebay and swap out the boards. The board swap is not too complex but voltages are dangerous within the set and service by a qualified electronics technician is recommended on this unit. Thanks and good luck. Dan

May 31, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Black growing on screen


That is normally cold solder joints around the High Voltage transformer ( IFT) and also the video section. It should'nt be a major repair for a tech.

Apr 16, 2009 | Televison & Video

1 Answer

I have a 50 inch rca tv model m50wh185 no picture but has sound


do u hear any high voltage static when you first turn on. possible high voltage problem with the high voltage splitter or focus pack. ussally when there a problem with these high voltage is being generated but not delevered to the tubes

Mar 17, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

AKAI PT5598HDI 55" PROJECTION TV HAS POWER AND SOUND, NO PICTURE


Open the back of the tv and check Fuses, sound like the high volt over loaded

Jan 11, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

PT5598HDI Wiring Problem


the red wire will go somewhere to the right side near the High Voltage section. The green wire is probably antenna. DO NOT get them crossed...

Question. what connector if any is attached? The board will usually have a pin sticking up that is marked...

Jul 13, 2008 | Akai PT5598HD 55" Rear Projection...

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