Question about Sanyo DP37647 37 in. LCD TV

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I had a near lighting strike that took out the cable and the tv

Checked the fuse on the board where the power cable comes in its good

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You have to check the DC voltages. First check across the high voltage electrolyte capacitor to know whether you are getting DC. Check the capacitor DC rating and you should get the the voltage less than the rating by 30% less.

If no DC present check the diodes or Diode bridge. If these are OK check the SMPS circuit components.

Posted on Jul 08, 2010

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HAD A LIIGHTNING STRIKE DO THEY HAVE A FUSE THAT WORKS AS A GFDI INTERNALLY ON THE TV?


there may be a fuse ( you will have to get to the [power board to check)but normally in the event of a lighting strike that fuse is useless as the power surge jumps the fuse holder and fries the board and screen
I suggest that you take it to an appliance shop for a proper diagnosis and next time put a quality power surge board in the system before the tv and any other electronic equipment

Jul 21, 2015 | Televison & Video

1 Answer

Lighting strike 42 inch phillps tv mill not turn on


I would first look at the power supply board. it might be a removable fuse. unplug the TV first, remove the back of TV check the area to where the power cord comes into the TV. it should be real close to the power supply board.I have had a couple of quick fixes by just replacing the fuse. (that means it did it's job) if that doesn't fix it try to get the part # from the power supply board and check with Shop Jimmy.com for replacement board. (easy fix) take pictures of the back of TV with cover off and of the power supply board before u do anything. Leave the old board in place till the new one comes in. that way you won't forget where the cables went etc. Just be careful cause the dead board can still hold a charge so handle with care.

Sep 21, 2014 | Philips 42PFL5603D 42 in. LCD HDTV

2 Answers

Will a nearby lightning strike cause a power board failure?


It could happen yes it would depend where the strike entered the TV. Not all lighting strikes hit on the electrical lines, on a TV they can come through the cable, as well as a antenna if you have one hooked up.

May 10, 2014 | Samsung UN32EH4003F

2 Answers

Polaroid FLM-3701 power


Unfortunately modern televisions and monitors are full of electronic semiconductors of which many are likely have got destroyed along with your original power supply during the storm. A nearby lightning strike will send high voltage spikes down aerial cables as well as through socket outlets.
If you have contents insurance you should be able to claim for a new monitor.

Nov 09, 2013 | Polaroid FLM-3701 Television

3 Answers

Lightning strike, power was out for no longer than a second and came back on - only TV has been effected and will not respond by remote or tv button. Shows it is on. But only getting fast clicking noise...


Hi Johnson,

Only 50% chance that the symptoms was caused by a lightning strike because your cable box was powering on fine. Most of the cases when lightning strike near to your area, possible of multiple damaged to the electronic device not only to one particular appliances, most especially if they are plugged into the outlet. Also, fuse will blew because of excessive voltage.

I've suspected that the symptoms was only a co-incidence of lightning strike. If you can hear the clicking of the relay, this is only means that the standby power supply is working fine. However, this board has multiple output voltage feeding the other boards to function well. This kind of symptoms is a power supply related problem.

If you have necessary tools and test instrument and handy with electronics, you can troubleshoot this board to find the faulty parts like open fusible resistors, shorted transistors/IC's, leaky electrolytic capacitor, etc.
Another option is to replace the entire power supply board, this is more convenient if you are going to DIY because no soldering required. Try to find you board HERE. Type the model no. of your unit to the search engine, available parts/board will be display.

Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Jul 31, 2011 | Vizio 42 in. LCD TV

1 Answer

Toshiba 32LV67U took an unprotected lighting strike. I'm not a stranger to electronics. The fuse on power board is good. Two LED indicator lights light on adjacent board, so I guess power. But built in...


Unfortunately, with a power surge like that, untold problems from a simple power supply fault, to a processor failure could have hapenned. I cannot say how far or how near the damege is from the power supply.
Sorry and good luck, you may need it.

Oct 16, 2010 | Televison & Video

1 Answer

House took lighting strike and my LCD TV will not power up. Have TV apart and the fuse is good. Heat sinks are warming up and do not see any burnt spots or blown capacitors.


All the ICS on the boards are dead.Replaced the power supply board,it dead.Be prepare to replaced the Tuner board too.50% it dead also.Tries websites like Shopjimmy.com,Ebay.com to buy refurbishes boards like the power supply board and the Tuner board.

Sep 30, 2010 | Philips Televison & Video

1 Answer

We had a near lightning strike and now my tv (sanyo model ht27744)doesn't want to come on.


Lightening may have caused a surge on your power lines to the house and to the outlet the TV was on.
Do other things work on that outlet? If not you tripped a power breaker.If they do work check this.
Unplug the TV for 2 min or more and plug back in.
Try bypassing your surge protector you had it plugged into. It could have died when the lightening struck.
(no surge protector?) Bet you'll buy one for your next TV.
Look for 3000 joules and up rating for a surge protector and insure it has protection for a cable/antenna input too.
If this doesn't work the TV may be fried or internal fuse blown.
Time to take it to a repair shop or depending on it's age (5 years+) it may be time to buy a new TV and surge protector.
Near Lightening strikes can effect appliances from several inputs that could be affected from outside like Power, Cable, Antennas, Phone Lines that come into your house.

Jul 06, 2009 | Sanyo Televison & Video

1 Answer

Blinking red power indicator light


Pushing it back in place went it went out tells me that the problem is probably a poor solder connection. That arcing probably took out one of the fuses, but a fuse is NEVER the cause merely a symptom. I would begin by examining the black wire that feeds the +16v to the convergence IC's on the main board. The convergence circuit is the most thermal circuit in that unit. Next check for any jumpers and other component joints that appear to be ring cracked. Even the convergence amps themselves. Then check for open fuses after you've made a good inspection. Check for fuses: F850 & F851 5amp, F470 2amp, and F890 3.15amp and one of these are likely open. But if you replace them without correcting the problem that cause them to open it will simply happen again.. Good Luck Bill

Jun 10, 2007 | Toshiba 42H81 42" Rear Projection...

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