Question about Car Audio & Video

1 Answer

Hello there, i bought the kits to fix my power

Hello there, i bought the kits to fix my power board BN44-00161A. The two 2 PCS FQPF9N50C Mosfets are cracked in the middle heat bar. However, I don't know how to remove these little mosfets from the bar, they seem two be really well glued to metal. Can you tell me how to remove these? Thanks

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 43 Answers

Please use a hot air soldering gun to remove them.

Posted on Nov 21, 2014

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:

2 Answers

LG vertical green line


LG plasma vertical line repair - YouTube

? 2:33
https://www.youtube.com/watch?v=24FkcQoeGPg
Feb 10, 2013 - Uploaded by Matt Mayer
I have an LG plasma, my vertical line is in the middle, as if one would have ... Panasonic Plasma TV TC-P50X5 Vertical GreenBar Line Fix ...

EASY HOW TO FIX LG plasma TV - color bars - YouTube

? 4:45
https://www.youtube.com/watch?v=QyaBiSkc1l8
Dec 16, 2010 - Uploaded by Tampatec
diy HDTV Plasma tv repair tv reparar the red green blue color stripe line vertical bars T- control t-con ..

Jan 16, 2016 | LG Televison & Video

3 Answers

LG 32lc2d tv - blinked several times and then froze. Whern it unfroze it turned itself off. Now when it comes on, there is no picture, no sound. Any answers? Thanks


This sound like the power supply board has failed. This is usually because of bad electrolytic capacitors.
A bad batch was made several years ago and many manufacturers used them is all sort of products. THIS IS A INDUSTRY WIDE PROBLEM.

IF you know how to repair electronics or have a friend with knowledge/skill you can replace thems.
> Unplug the set.
> Remove the back cover.
> Look at the capacitors on the power supply board.
> If any capacitors have a bulging top you've found the problem.
> You need to get good new replacements.
>The farad rating must be the same.
>The voltage rating can be the same or higher voltage. (never lower)
>Use high temperature rated ones.
> Replace one at a time to prevent mixup.
> When soldering in leave a space between the PC board and the bottom of the capacitor. They need room to expand due to heat.
> While you have the board out you should replace the other capacitors before they fail. Maybe not the biggest one however.

NTE make capacitors. Website nteinc.com. You should be able to find there local outlet. You can also look at;
http://lcdalternatives.auctivacommerce.com/Repair-Kit-LG-32LC2d-LCD-TV-Capacitors-P1747193.aspx.

Feb 13, 2011 | LG 32LC2D Television

1 Answer

I have an Xbox 360 and the power light is red when you turn it on. What could be the problem and can it be fixed? What do you suggest.


e74 or rrod error means that there is an hardware issue.
What you need to do is a very simple and cheap repair.
look on ebay for x clamp repair kits, these are just a few bucks and most sellers include a good guide in how to do the mod/fix.
what causes the rrod or e74 error is the X shape clamp on the underside or the mother board bending and mis-shaping causing the ball soldering on the gpu/cpu slightly melting and forming hairline cracks in the solder.
The x-clamp kit will apply more pressure to the gpu/cpu and a little trick of disconnecting the fans and turning on the xbox and allowing it to overheat will re melt the solder ball joints to fill the hairline cracks.
Depending on which chip is the issue you may also need a 2000 watt heat gun instead of using the over heating method (the gpu chip).
Replacing the heat pads on the heat sink with thermal paste which comes with the kit will keep the gpu/cpu cooler and you wont have this issue again.
Please make sure you buy the kit which comes with heat treated nylon washers as the steel spring washes fail!.
The repair takes around 1-2 hours
I hope this helps in fixing you xbox

Nov 01, 2009 | Microsoft Xbox 360 Console

1 Answer

It has been fine for the years I had it but now it won't turn on


do you have any red rings on your console if so it is possible to be fixed by this method:
e74 or rrod error means that there is an hardware issue.
What you need to do is a very simple and cheap repair.
look on ebay for x clamp repair kits, these are just a few bucks and most sellers include a good guide in how to do the mod/fix.
what causes the rrod or e74 error is the X shape clamp on the underside or the mother board bending and mis-shaping causing the ball soldering on the gpu/cpu slightly melting and forming hairline cracks in the solder.
The x-clamp kit will apply more pressure to the gpu/cpu and a little trick of disconnecting the fans and turning on the xbox and allowing it to overheat will re melt the solder ball joints to fill the hairline cracks.
Depending on which chip is the issue you may also need a 2000 watt heat gun instead of using the over heating method (the gpu chip).
Replacing the heat pads on the heat sink with thermal paste which comes with the kit will keep the gpu/cpu cooler and you wont have this issue again.
Please make sure you buy the kit which comes with heat treated nylon washers as the steel spring washes fail!.
The repair takes around 1-2 hours

If no lights are on your console do you get the light on the power supply as you might have a faulty power supply and if no light is on the power supply it could be as simple as a faulty power cable from the plug to the block

Oct 30, 2009 | Microsoft Xbox 360 Console

1 Answer

Same thing.


Hello,

If you have the 2 blown capacitors on the power board then most likely yo also have blown MOSFETs and a blown fuse. The MOSFETS and fuse blow when the capacitors short out when they blow. We sell a kit with the capacitors, MOSFETs and fuse with instructions for $10.00 plus shipping. Let me know if you need a repair kit.

Buddy
Corporate Computer
www.ccl-la.com

Jun 25, 2009 | Westinghouse 22" Widescreen LCD Flat Panel...

1 Answer

Blown channel


Its possible to repair, but you have to crack the amp open and prod around a bit. I found that the failure is usually in the power components or the MOSFET drivers. If you have 1 channel out, I would focus on the MOSFETS (if you dont know what they look like just Google MOSFET - they are the black 3-legged chips and are usually mounted to aluminum to disperse the heat). Some things to look for:
- burnt / melted solder traces (where the MOSFETS connect to the main board)
- disconnected leads (same place as above).

If you find any connection that looks suspicious, it wont hurt to re-melt the solder around the joint to make sure its a good connection.

Hope that helps...

May 08, 2009 | Car Audio & Video

1 Answer

Black bar down middle of screen


these cables are machine installed on the panel itself, not user fixable. however, the cables are mounted to a circuit board at bottom of the screen. to reach they you need to remove nearly all the support structure and boards at the bottom of the panel. there are a number of sensitive parts under there and they have black 'licourus' on the chips to dissipate heat. good luck.

May 05, 2009 | LG 42PG20 42 in. Plasma HDTV

3 Answers

LG32LC2D - Sound slow to start


This is indicative of a bad main board that will need replaced. For this model make sure the repair person has the full product code (from the back of the unit) so that they can get the correct main board ordered (there are multiple versions depending on the product code). Hope this helps.

Jan 05, 2009 | LG 32LC2D Television

2 Answers

LG 32LC2D Power light Blinks but set will not power on.


change your adc(analog to digital converter) board will help out

Jan 30, 2008 | LG 32LC2D Television

1 Answer

Dell Latitude C540/C640


Wow Buddy. I'm impressed with your work here.
I have seen many boards which were oem, which had what appeared to be 'add on' circuitry. It's common when a problem arises in a product, which they've already had a million of manufactured. Otherwise, maybe the NSA, CIA, or MA Bell doing a little snooping?
Ok just kidding.
Assuming the circuitry which was replaced was still there, I've experienced a couple of "no power" issues on these models.
Bad power board.
AC adapter socket unsoldered from board.
Dead short between motherboard and palmrest/case.
Bad memory.
Burned capacitors.
Best thing since it's apart already, just order another board and you'r good to go.
I sell the same board at my shop for 75-100.00 US.
If the processor's good, then you should be good to go.
Good luck

Jan 22, 2008 | Compaq Presario X6000 Notebook

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

65 people viewed this question

Ask a Question

Usually answered in minutes!

Top Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4834 Answers

yadayada
yadayada

Level 3 Expert

75005 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

Are you a Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...