Question about LG 42PX5D 42 in. Plasma HDTV

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Standby light won't come on after electric tripping off

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Hi there, Im Kanth, i had the same problem, and i found a person in Mississauga, they fix all kind of problems in Plasma, they fixed my LG before a 7 months, its still running good, i came to know lots of ppls were having same problems, i sujest u to being the plasma to electronics @ Dixie and Britannia Mississauga, call them now 905 565 6595 or check there wesite for more info. http://dukeelectronic.com

Posted on Apr 22, 2008

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How do you repair a Samsung LED tv that will not turn on and has a standby light?


Scott, most probable there is a failure on the power supply board inside. Often the capacitors on this board will receive a surge and then fail.
I will post links to help you trouble shoot and purhaps allow you to fix.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Samsung LED TV Won Turn On No Power Does Have Standby Light Basic...

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TV Will Not Power On

Mar 04, 2016 | Samsung Flat Panel Televisions

1 Answer

Why will my Hitachi L24DG07U not, come on. It was left on standby, trip switch knocked electric off when light bulb went, when electric put back on TV will not work. Why???


Most likely it's a capacitor fault.

Google "Capacitor bulge" and then search Youtube for your make and model to see if anyone has done an instructional video. You'll need to be comfortable dismantling the TV and be able to use a soldering iron. If this isn't you then take it to a repair shop.

Sep 05, 2014 | Flat Panel Televisions

1 Answer

Sony Wega T.V. won't stay on.


Over Voltage Protection 03. Three blinks of standby light denotes this. The fault is with its main power regulator section circuit. If you wish to get more details about these blinking codes, check this link. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock! Instead, contact the nearest service center.

Jan 29, 2013 | Sony Wega KDF E50A10 TV

1 Answer

Emerson tv....won't turn on...stand by light won't go off


Not making it on or out of standby---first place to look is the power supply for signs of damage or puffed up filter caps there.
12_10_2012_9_55_44_pm.jpg12_10_2012_9_56_00_pm.jpg

Dec 10, 2012 | Emerson SLC195EM8 LCD TV

1 Answer

Hello, i have a sanyo dp 19648 that was working perfectly when last used, i have been away on a trip & turned all electric power right off from the mains & when i got back, the tv will not come on...


Power supply in set has a standby the runs 7/24 (all sets do and computers also) and the loss of power when restored may have damaged something there---a fuse is possible and should be looked at first---the Standby provides voltage for the remote to turn main supply and the set on.

Nov 06, 2012 | Sanyo Flat Panel Televisions

1 Answer

Tv won't turn on


Most likely a surge when power returned to them---if they do not indicate they are powered---maybe a fuse in the set---the box you should be able to have exchanged (do not mention tripped breaker).

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.
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Apr 01, 2012 | Flat Panel Televisions

1 Answer

MY LCD PHILLIPS MODEL 42PFL3704D/47


Good day!!!

if you have power problem without blinking lights or standby lights (red) the possible problem is power supply board..However if the TV have blinking or standby light but won't turn ON..there are multiple cause of that and need further troubleshooting..

Mar 11, 2012 | Philips 42PF9431D/37 TV

1 Answer

Pioneer red standby light blinks 10 times. Tv won't turn on


In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section . Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.

The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.

Check for tips to check the SMPS unit:

http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies

Thank you for using fixya.

Aug 22, 2011 | Flat Panel Televisions

2 Answers

NO POWER ON THE TV SANSUI PLASMA SV EPD 4230BP .IT HAS TRIPPED THE ELECTRICITY.NOW THERE IS NO POWER ON THE PLASMA TV WHICH IS 42 INCH.


If you have a power cut when tv is on - it shuts down for safety - leave it for 1 hr or overnight - then it works!! I have a UPS as our power here in Mozambique always goes out

Aug 12, 2009 | Flat Panel Televisions

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