Question about Polk Audio Audio Players & Recorders

1 Answer

Polkaudio psw202 won't turn on

Trying to fix it myself, found out that the power amp IC was burnt out. The number of that IC is not clear, all I can read is TDA729??. Someone please help me with that number. Thank.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Got the information from Polkaudio customer srevice. IC number is TDA7294.

Posted on Dec 16, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have found power card of Del In1930f defective, after further checking I have found mosfet A2764 burnt and 1NN801B ic of driving card burnt, please help how to fix this problem.


It is considered unsafe to attempt a repair of a power supply of that design. It will probably cost less, than the parts and expertise, to replace it.

Dec 17, 2016 | Computers & Internet

2 Answers

Polk Audio PSW202 subwoofer. Replaced burnt fuse but blows the next fuse after connecting to amplifier and powering on. What else can I do?


Fuse probably went bad because either the large filer capacitors at the edge of the PCB went bad and or the final output IC mounted on the heatsink(15 pin) fried. Check the capacitors and all the semiconductor components on the board for burn marks or corrosion. You have to remove the heat sink clamp from in front of the output IC to adequately visualize its condition. In fact you might have to remove the large aluminum heatsink attached to the chassis to get a good view of the IC. If it or the heat sink clamp show signs of thermal burns you need to replace it. The IC is a TS TDA7294 mono audio amp available at Mouser Electronics. Replace the 35V 4700mF caps with 50V 4700mF caps. You will only have enough space on the top of the PCB for one of the larger caps. I mounted the other on the circuit side of the board. Note the polarity of the original caps and respect it in their replacements. The fuse is a 5 X 20 medium speed slow blow 250V 2.0A glass fuse.

Aug 17, 2010 | Polk Audio PSW202 Subwoofer

1 Answer

My alpine five channel amp got fried and on checking i found a small eight pin IC burnt in the power supply.how to bypass it?


There is no way to do a bypass without afecting other functions on the AMP. What you can do is try to get the numbers printed on it in order to get a replacement. You may also find it on the diagram but it is a little bit difficult if you do not know how to read it. Next time post the model number for easier reference.

Jan 26, 2010 | Car Audio & Video

1 Answer

Toshiba 42h81


STK392-110 's = replace with Toshiba or Sanyo quality only..
What was the location & value of the resistor ?
An IC, if shorted internally,can prevent the tv from powering up..
Re-check soldered in 5 amp micro fuses F850,851,852,etc
Fix it ! ..............................T.

Aug 28, 2008 | Toshiba 42H81 42" Rear Projection...

3 Answers

DVD Player Will Not Turn On


minr froze and wont turn on now either has anyone had any luck fixing this problem?

Nov 19, 2007 | RCA DRC247N DVD Player

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

805 people viewed this question

Ask a Question

Usually answered in minutes!

Top Polk Audio Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

4861 Answers

The Knight
The Knight

Level 3 Expert

72650 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Are you a Polk Audio Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...