Question about Akai PT4799HD Rear Projection Television

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AKAI FIX I FOUND A CAP BAD ON MY BOARD WHERE DO I FIND OUT WHAT KIND IT IS??WAS A BURNING SMELL AND DISTORTED PIC AS I HAVE SEEN ON THIS BOARD IS THERE SOME KIND OF SCHEMATIC I CAN GET TO SEE WHAT I NEED TO REPLACE IT WITH ??THANKS AKAI PT4799HD 47"WIDE SCREEN 04 MODEL

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My set had the same issue with the picture and burning smell. On my set, I just removed the cap and the set works great without it.

Posted on Nov 13, 2007

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Posted on Jan 02, 2017

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Im pretty sure the pip module in my mitsubishi vs-50605 has gone bad is it a real hard fix or is there some way i can bypass


yeah you can use two caps to bypass and pull out the whole pip module. You'll have to find schematics because I cannot find my documentation, if you can't find the schematic, then let me know I can dig some more.. Basically you pull out the pip module and then add in 2 10uf caps to just pump the signal back into the signal board.

heres something i found, not positive its credible but should be safe to try
pull the module out and just push the caps into the connector
if it works, then you can solder in, i usually broke off the old connector to have an easy pop in fix.

oh.. the symptom is usually a black or bad pic, but the pip looks good = bad pip module caps (too many to fix unless you really want pip)

heres your pic

i've seen it work with many diff sized caps, this says to use 4.7uf instead of the 10uf I suggested, either will prob work.

8bd9475.jpg

Jul 13, 2010 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

Screen distorted and burning smell


Those dead resistors that the cause,u are smelling burning plastics.Try website Tvrepairworld.com to buy a whole convergence board for the replacement.The Samsung/Akai are using the same convergence board.

Jun 06, 2010 | Akai PT4250A 42" HDTV

1 Answer

Board in lower back of TV has burned out. I have pics.


If you have a burt board you are better off to replace whole board Call Encompass Parts 1-800-638-3328

Jan 08, 2010 | Televison & Video

2 Answers

Convergence board is bad


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 28, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

I just replace convergence board on my akai tv and


There is a burnt capacitor somewhere in the unit. Look for any burnt or swelled up capacitors. You can also usually locate a bad cap if there is burn marks on the system board. Also test power supply with voltmmeter to make sure it is a constant volt reading.

Jul 11, 2009 | Akai PDP-42TD1 42 in. EDTV-Ready Plasma...

1 Answer

Lct3285ta Akai


I have one I'm replacing the caps on also, the back is off, here are some pic's.f49c805.jpg8160173.jpg3cfe79a.jpgf402f49.jpgc47399f.jpg

Jan 17, 2009 | Akai LCT3285TA 32 in. LCD Television

1 Answer

Burning smell and pic went out


Power supply board it has 2 thyrisitors and needs to be resolder .

Nov 29, 2008 | Akai PT4799HD Rear Projection Television

1 Answer

Pwer supply board repairs


this model uses 2 different boards--both are not available from Akai (SAMSUNG) look carefully at all the filter caps on the power board--many will be bulged up at the top---last one I did had 20 bad caps---space allowing--replace with higher voltage rated caps---8 were 2200 mfd @25 volt, 4 were 3300 @ 35 volt, 7, 1000 mfd @ 10 volt, and one 1000 @ 6.3 volt---- Sets with 10 digit serial number use one board and sets with 8 digit serial number use another board---I have seen "rebuilt boards" on several sites on the internet for about $115 + S&H---which is about what the original board replacement sold for when they were available.

Mar 26, 2008 | Astar LTV-2701 27 in. HD-Ready LCD...

2 Answers

Help


This is probably caused by faulty capacitors in the power supply. This is a common problem with this model. If you no longer have a standby light, it could also be caused by an unidentified short on the main board. Hope this helps you out.

Dec 30, 2007 | Akai LCT2662 Television

1 Answer

Burning smell and distorted picture


One of the components in the horizonatl deflection circuit went bad like a capacitor,the price will depend on the actual part that went bad and your location,the service call in NY could be 300.00 but in pittsburgh might only be 150.00.I still belive is wort repairing.

Oct 18, 2006 | Akai PT4799HD Rear Projection Television

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