Question about Samsung LN40B630 40 in. LCD TV

1 Answer

TV will not turn on, 3.15amp fuse keeps blowing on power board

The TV is 2 years old, and yesterday it did not want to turn on, no light, no sound...nothing. Opened the back to look at the capacitors and they all look fine. checked the two fuses (the 6.3amp is fine but the 3.15amp is not). changed the 3.15amp fuse but the TV still did not want to turn on. Checked the new fuse and it went bad again. I really want to try to fix the problem myself but not sure what I need to look at next. Please help

Posted by on

  • 2 more comments 
  • sam djeralfia Nov 08, 2012

    Ok here more details about the problem:

  • sam djeralfia Nov 08, 2012

    My samsung LN40B630 will not turn on, no light, no sound, no picture. I checked the Power Board and found out that the 3.15a fuse was blown, I replaced it and pluged the TV but it did the same thing. Before I try to find a new Power Supply Board (BN44-00264A), I wanted to know what would cause the 3.15Amp fuse to blow but not the 6.3amp fuse which is closer to where the current comes in. All the capacitors look fine, and I do not see anything unusual on the board. Thank you

  • Russell Meyers
    Russell Meyers Apr 29, 2017

    I have the same issue. how do I get an answer?

  • Russell Meyers
    Russell Meyers Apr 29, 2017

    I have the same issue. how do I get an answer?

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have an ln40b630n1fxa and my fuses keep going out as well i took it all apart and seen nothing blown. What would be my next step

Posted on May 24, 2016

Ad

6 Suggested Answers

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

Ad
  • 1 Answer

SOURCE: Samsung TV won't turn on- trying to fix it. A challenging problem

I had the same problem. I live in NJ and called the local authorized "service provide" listed on the Samsung website. What a joke. Quoted $350 just to show up, never showed up. So I opened my own TV. Took off the plastic back (10 screws) took off the large metal RF shield (12-14 screws) and noticed a blown component. The markings on the component were KL15L and it is apparently an NTC Thermistor. Obviously it got fried and not knowing if there was other damage I decided to set out to replace the entire Power PCB Board Assembly and not the component. There were two part numbers on the assembled board (BN97-00457E & BN94-00622E). After searching online I also found a suitable replacement number for these (BN96-04896A). I found two places who claimed to have the part or have it on order (shopjimmy.com and vancebaldwin.com). After placing orders with both and having neither come through, I broadened my search and found out that the LNR409D was basically the same model as my LNR408D so I looked for its Power PCB Board Assembly part number which turned out to be BN41-00521B. Google search for that part number showed the item available on ebay. I bought it a week ago (ebay 260311519904) for $144 plus $12 shipping. I removed the bad board an hour ago (6 screws about 7 connectors) installed the new one, plugged in the connectors, replaced the covers, plugged in the TV... AND IT WORKS!
Suggestion: If your TV is out of warranty then open it up (what have you got to lose) and see if the problem is obvious and maybe something you can fix (replace) yourself. The parts, spare boards, etc. are out there if you look.

Posted on Nov 16, 2008

  • 8457 Answers

SOURCE: We have Samsung LCD model LN26A450C1D, which is

The tv Tuner board is dead,that the board,where the brocasting incomming signal cable connected into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacement.

Posted on Jul 22, 2010

Testimonial: "Thanks for quick response! I will try. "

welcomejee
  • 10594 Answers

SOURCE: First of all, I really

Hi,
Would troubleshooting chart of LN-S4052D help you to diagnose problem?
Let me know to send you pdf file of troubleshooting for no power problem, it has details to test what volts on what points.
Thanks.

Below is first page image of related service manual just for reference.

c12828c.jpg

Posted on Oct 21, 2010

SOURCE: power light comes on and clicking is heard but no

your problem is more a defective y board with y buffer boards one of them is short

Posted on Oct 26, 2010

  • 1684 Answers

SOURCE: Samsung TV won't turn on. Red light is solid, won't blink when pressed. All capacitors seem fine (none swollen or vented).

That model is covered under a class actions lawsuit settlement over bad power supply boards. You need to contact Samsung about this and get a warranty claim started, even if the original warranty is over the settlement terms will cover parts and labor. You can get additional information about this along with contact information here: http://www.ccl-la.com/blog/index.php/samsung-has-reached-a-settlement-in-class-action-lawsuit-over-faulty-tv-power-supplies/

Posted on Sep 25, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Fuse keeps blowing


Hi Anonymous, you have a hard/dead short that should be easy to find generally they are the easiest. Time to get out your test light and start tracking the wire from the power side of the switch, circuit breaker or the blown fuse receiver, when the test light quits lighting you are very close to your short. For a free wiring diagram please visit the website below and good luck.
Harley Davidson Wiring Diagrams and Schematics

Jul 02, 2013 | Harley Davidson XL 1200 C Sportster Custom...

1 Answer

Keep blowing the main fuse.


To which circuit section did you replaced the fuse? Main power retulator? Just understand, the fuses are used to protect the circuit and TV from any short circuit or over voltage. Without any one of these, no fuse will blow up. If it was due to over voltage, the set should work after a fuse replacement. But here, the fuse blow up again, means, there is some thing shorted component/s. Check which component is shorted, and replace it, before replacing an other fuse. One more thing to say is, never insert a fuse other than specified. The voltage and ampere specification to fuse, will be marked at the circuit board, very near to the fuse clamp. Insert a fuse of same rating only. Using other fuse, rated higher ampere rating, might make things worse.

May 27, 2013 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

On model mh1160xss-0 whirlpooll microwave the fuse blows everytime you turn on cook


The magnetron is shorted or the inverter board is defective if microwave is 7 years old or less.

May 16, 2012 | Microwave Ovens

1 Answer

Sanyo TV LCD 32 inch about 3 years old. No


the power supply of your tv is bad try to check the fuses if fuse are open try to replace them with the same value..try to power it on but if the fuse blows again replace the power supply board...
good luck plse rate my help.

Jun 04, 2010 | Sanyo DP32746 32 in. LCD Television

1 Answer

Pioneer SD533HD5 repair, blown STK's or bad power assy?


Go back recheck everything 6amp fuse in middle of power supply board that will blow, also solder everything that looks like poor connection pioneer always has a lot of cold solder jionts.CK all pico fuses they are green,yellow look like resistors but are fuses.

Jun 15, 2009 | Pioneer SD-533HD5 53" Rear Projection HDTV

1 Answer

Blowing fuses in power supply


One thing to check, would be the filter capacitator that is on the front circuit board. They are known to become shorted. The cap is fairly large, and may be mounted on the side of the circuit board that faces the front panel. Clip one lead, and apply power. If the fuse does not blow, then that is it. A second possible component, is the polarity protection diode, that is near the power jack, next to the fuse. If it is shorted, then the fuse will blow every time.

Aug 21, 2008 | Optics

1 Answer

Fuse blown


Hi mate most uk set have a 3,15amp 250v fuse ti dosent matter if its quick or slow all the best Bob

Aug 13, 2008 | Toshiba MW24FP1 24 in. TV/VCR/DVD Combo

1 Answer

Sony FWD-42PV1 -


I diagnosed the same problem on my FWD-42pv1 as a problem on the Y-SUS board. The fuse on that board was blown, and the board itself was bad (replacing the fuse was not enough to fix it). The symptoms were exactly the same - the LED cycling red/green, and then finally stuck at red.

With a new Y-SUS board, the TV has been working fine for a couple months.

Jan 26, 2008 | Sony FWD-42PV1 42 in. HD-Ready Plasma...

2 Answers

Main fuse blown on CT-32G11 32" Panasonic TV, Replacement fuses continue to blow.


If the main fuse keeps blowing, check the horizontal output transistor for a shorted condition and diodes in that section as well.

Jan 12, 2008 | Panasonic CT-32G11 32" TV

Not finding what you are looking for?
Samsung LN40B630 40 in. LCD TV Logo

Related Topics:

911 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74251 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Samsung Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...