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Sylvania 6637LCT A Keeps blowing fuses, whats the next step

I have a Sylvania 6637LCT A, which has no power. Changed the intenal fuse, but the second I plugged it in it blew again. Is there a transitor that needs repaired at this point. Any help is greatly appreciated.

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5 Suggested Answers

SOURCE: amp keeps blowing fuse

I have this same problem. You have blown the internal amp. I have had 2 of these do the same thing. There is nothing you can do but report it to infinity and try to get the unit replaced.

Posted on Feb 08, 2007

shaggyrat
  • 1224 Answers

SOURCE: logitech z680 blows fuses

http://www.readycomponents.com/1/1/436876-fuse-tlag-160a-250v-ul-tr5-37411600410.html
heres one place to buy it
somewhere else theres wires touching too

http://messages.crutchfield.com/S-ik2rksX50QP/App/Product/Group/ProductMenu.aspx?g=717&tp=1124

fuse suppliers
radio shack
fry's electronics
any electronic stores

Posted on May 07, 2008

  • 77 Answers

SOURCE: fuse keeps blowing out in my maytag washing machine

replace the complete lid switch ***'y. be sure to adjust properly.

Posted on Dec 03, 2008

  • 1 Answer

SOURCE: Sylvania 6632 LG blows fuse when plugged in

I too had this problem. I read some posts on this site about how to repair it, and low behold, they worked! I took the back off of the TV, and the first thing I found was the fuse was blown. With my meter, I checked the first 1N5406 rectifier diode after the fuse, and found that it had shorted out. Then I had to learn to desolder the diode, which I learned about on Youtube. I bought a pair replacement diodes at Radioshack for $1.49 and four replacement 125 volt 4 amp fuses. The whole repair cost about $5.00 and a few hours about learning about electronics. The TV works great! Good times!

Posted on Apr 08, 2009

  • 158 Answers

SOURCE: the engin control fuse keeps blowing on my 2005

your fuelpump could be causing the fuse to blow as it may be seizing up

Posted on Apr 19, 2009

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Hello, I have a samsung un55d6400 led tv, where the standby light blinks 5 times, ive replaced the powerboard and main board. The fuse keeps blowing what is my next step


The fuse keeps opening because the problem is more serious. If it did not blow, then more damage could be incurred in the TV. Sounds like you should consult a professional rather than not really knowing what you should be doing next.

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Dropped tv


first check if there was no short cicuit inside or any wire or parts that have contact and can cause also a grounded and make your fuse always blown...

let me know

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2 Answers

Amp keeps blowing fuses


Blowing fuses, was caused by many thing.
Short of rectifier,resistor,elco,tube heater,tube pin, and also trafo itself (primary or secondary winding). It must check step by step.
CAUTION :
THIS IS HIGH VOLTAGE AREA.
RISK OF ELECTRIC SHOCK THAT CAN KILL.
DON'T DO THIS IF YOU ARE NOT TECHNICIAN OR NOT FAMILIAR WITH VACUM TUBE CIRCUIT. THE CIRCUIT MAY STILL CONTAINS ELECTRIC SHOCK EVEN IF IF THE AMP IS NOT POWER PLUGGED.


The simple steps (see picture) are:
  1. Disconnect all connection from secondary of power trafo (PLV,PDCH,PACH and PHV).
    Power ON the amp. If fuse is not blowing,trafo is good.
  2. Power OFF the amp. Unplug the cord.
    Connect PLV1-PLV2-PLV3 (this are Bias voltage,+/-15VDC and Backlight PCB voltage) to power trafo.Power ON the amp. If fuse is not blowing,PLV circuit is good.If fuse blowing,there are parts is damage (dioda,elco,7815/7915,resistor) in this PLV circuit.
  3. If step 2 is good,go to next step.
    Power OFF the amp. Unplug the cord.
    With PLV circuit stay connected,connect PDCH 1-2 and PACH 1-2 to power trafo. Power ON the amp.
    If fuse is not blowing,PDCH and PACH circuit is good and all tubes heater/filaments are lights after a few seconds.
    If fuse blowing,there are parts is damage (dioda,elco,tube heater pins) in this PDCH/PACH circuit.
  4. If step 3 is good,go to next step.
    Power OFF the amp. Unplug the cord.
    With PLV,PDCH,PACH circuit stay connected,connect PHV 1-2 to power trafo.
    Power ON the amp. CAUTION: HIGH VOLTAGE AREA is ON.
    If fuse is not blowing,PHV circuit is good.
    If fuse blowing,there are parts is damage (dioda,elco,tube pins) in this PHV circuit.
.amp-keeps-blowing-fuses-01sk4vtrndbaaguwe2brflsj-5-0.jpg
Notes:
  • Steps had to be done sequentially from 1 to 4, not upside down.
  • If tube/heater pin is short,it can't be repair. The tube must be replacing.
  • PDCH circuit is voltage for V1-2-3-4 heater/filaments.
  • PACH circuit is voltage for V5-6-7 heater/filaments.
  • Always replace fuse with same type.

amp-keeps-blowing-fuses-01sk4vtrndbaaguwe2brflsj-5-1.jpg

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2 Answers

My fuel fuse for my 95 ford escort lx keeps blowing what could be causing this


The only time it blows is when you step on the gas and the car is moving and you're shifting from 1st to second. So if you left the car alone ...just start it and let it idle sitting still ...the fuse doesn't blow.

If that's the case then I would be looking at wiring. Like something is creating a dead short and blowing the fuse. Once the pump is running ...and that's typically when an electrical motor will draw its highest amp draw ...it stays running. My inclination is there is some kind of short and it happens when you move the clutch, the shifter or the throttle. Something is rubbing or coming in contact with the main power wire to the fuel pump. That's where I would start looking ....

Mar 08, 2015 | 1995 Ford Escort

1 Answer

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


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

Nov 06, 2012 | Samsung LN40B630 40 in. LCD TV

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I have a have 2000 chevy tahoe I need to now why my atc fuse keeps blowing out


the fuse is blowing because there is a short circuit somewhere in the system,,, to help you further I will need to know what fuse it is that is blowing AND what is it that you are doing WHEN the fuse blows ??? what is the Amp rating of the fuse that is blowing ? and in the owners manual ( under FUSES ) what Amp rating does it call for ??
write me back with this info and I will do my best to walk you thru the next steps to solve this problem.
thanks,

c...

Feb 03, 2011 | 2000 Chevrolet Tahoe

1 Answer

What makes a fuse blow after being on for about 15 seconds


Hi Bill,

Either a short or too small a fuse.

Many fuses are what they call, 'Slo-Blo'. they are designed to take high current for a few seconds before blowing. This prevents normal power surges from blowing the fuses.

If this is happing every time you replace the fuse, something is wrong internally that requires attention.

Remember, the fuse blows to protect the equipment. The next step is to find out what is making the fuse blow.

If it's under warranty, don't open it up. just exchange it.

As for the reason it's blowing, you would need to post all the symptoms.

Best regards
Mike

Dec 26, 2009 | JVC KD-LX30 CD Player

1 Answer

Picture disappeared...have sound


Ur main video backlight board is dead.Must be replaced.

Oct 21, 2009 | Sylvania 6637LCT 37 in. LCD Television

3 Answers

Brake switch fuse keeps blowing


replace your brake pressure switch on the master cylinder and that should take care of your problem.

Jun 04, 2009 | 1997 Ford F150 Regular Cab

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

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