Question about LG SMPS AC/DC OEM Original Part EAY60803002

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LG 42" LED TV EAY60803002 damaged

No any power on TV. Internal fuses are okay. Please help with schematics of PSU

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  • Fernando Ferreira
    Fernando Ferreira Apr 01, 2014

    Thanks Vijaya. Really I neeed of PSU schematics for board reparation. I've tried the TV service manual, but can't obtain. The TV set are a LG37LE5510 (or any other model with similar chassis )

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: LG 42 plasma power problem

needs power supply Part number 6709900023A
it is a 171 dollar part, you should be able to order through LG,

Posted on Jan 10, 2009

  • 4 Answers

SOURCE: lg 42' plasma tv shut it self on and off automatically

Sounds simple but check your sleep timer is off.

Posted on Jan 12, 2009

  • 458 Answers

SOURCE: i have a 42

The fuse you have replaced would have been on the sustain board, now that it clicks indicates a problem either with the control board or the sustain board. You would need to disconnect the connector from the power board to the Y-sustain board (left of power board) to check if the Vs & Va voltages are present, if so then the power supply will be working ok & the problem will be with the previously mention boards. There is the possibility that the plasma display screen could also be faulty.

Posted on Nov 06, 2009

SOURCE: LG 42 inch Plasma TV stopped coming on. Now

With this symptom, it is impossible to tell what the exact "Cause" of this symptom is. The LED's do not tell us what is wrong, sometimes it may indicate the "Area" in your case it is the X board. BUT thats NOT where the "Fault is" thats just the part that is affected. These days unlike the "Old" analogue days it just isn't realistically possible to fix anything but the most basic of problems with todays sophisticated units. This is quite apart from the Safety aspect, any unit that can cause a firs or have an explosion, or both, is NOT to be treated lightly, and and the repairer, of the unit is legally responsible, another thing to think about. Also, one must have tools, a Multimeter, a soldering iron, a deslodering iron, an oscilloscope, a signal tracer, tools, and most important of all, a Service Manual, without which, there is no way to even begin to understand and fix it, and more importantly Program it, AFTER it has been fixed. As these days a TV, is a PC, a Tuner, and an HDTV Monitor, and more, all in one. in the "old" days TV"s were more, rudimentary, and built to last for 20 years, and a "Parts" supply was set aside. They usually used to fail for only a few reasons, and they while still difficult, were less difficult to repair. Electrical knowledge was transferable, and they could be and would respond to, This-is-the-symptom-This-us-the-Fix, But that no longer applies, as now, it can be a Fault on I squared Bus, or "Sensor" failure, or it simple may have "Crashed" just like a PC, It could be a Diode go bad, and that will stop the whole thing. You see, in the day, the sets were Very "Fault Tolerant" because they were Analouge, and a faulty, component, or more sometimes, the set would always diplay something usually, and when they didn't it was one of anly a few things, sure there are always the horrid ones, and there are pleanty of those, but all in all it was quite easy. But with Digital Electronics, it either goes, or it doesnt, there are usualy few half measures. I mean thats the definition of logic either going or not. So it can take very little to completely paralyse a set, and generally give the only sysmptom, it can, by not working, usually No picture, or the like. So you, see the list is endless almost for any given SYMPTOM, as that is what is being seen, not the cause, as I keep going on about. Also any fault, usually involves the Power Supply, it is either the cause, the cause of the damage, or it is damaged. or ALL of them. Then after you have done the electronic repairs, you then must program the set to work, and align, and set up in general, any one of those settings missed or done wrong, back to square one. So, it is nearly always my professional opinion that one should always get a "Quote" form the manufacturers recommended service center, I cannot stress how important that last point is. It is even worth the cost of shipping. you see an authorised service agent, will have trained staff, trained on their brand, also they have first hand access to parts, original parts. This will actually save you money and ensure you can actually get it back fixed. Of course asking for a "Quote" also gives on the option of repair or replace. Often my clients,do not go through with repair, unless it is moderate, but in some of the more costly jobs they see it, as do i, that a replacement, with a warranty, is a better option. As an aside here, one could then tear the TV down, and sell the Known Good bits. You'd be surprised who needs parts, i myself often must by from third party sources to effect a repair. So money could be recouped, somewhat,and help out someone else.

Posted on Apr 08, 2010

budmrtn
  • 11361 Answers

SOURCE: LG L2LC55 HDTV

If you do not get any light on the front panel, it means the 5vdc standby power supply is not working or failed main logic board, you will have to do the power supply inspection first.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find.

Posted on Jul 22, 2010

Testimonial: "Thanks very much for your reply. I eventually unplugged the mains supply for around an hour. When i plugged back in the TV started ok. Now it's fine."

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Tv will not turn on, the red light is on at all times and dims then brightens.


Hi.

The TV switching itself off with the red light is the way the fault mode tries to tell you that there is a problem. As the internal fault is detected, the TV gets switched off to prevent more damage to internal components.

The TV starts in forced standby. The state is also called "Protect Mode". Protect mode kicks in when an internal fault is detected. The error is detected by protection circuit and the PSU is forced in standby mode, shutting down all voltage lines apart the 5VDC line that keep the standby mode on.

Try disconnecting the power cord for ten minutes, reconnect after ten minutes and restart the TV with no device connected.

If that does not help it means that there is an internal fault and that the TV must be tested and repaired replacing the defective part.

The defective part is usually the PSU. Among components that fail quite commonly there are the capacitors on the power board. If the capacitors look swollen or if there is trace of damage on PSU board, then the affected parts must be de-soldered and replaced. If there is no evidence of damage at a glance the parts must be tested using a multimeter and following schematics from service manual.

If you need to call a technician use the phone number listed on the owners manual or on the manufacturer support web page.

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Hi.

The TV starts in forced standby. The state is also called "Protect Mode", and kicks in whenever an internal fault is detected. The error is detected by controller circuit and the PSU is forced in standby mode, shutting down all voltage lines apart 5VDC to keep standby on.

First try disconnecting the power cord for ten minutes and restart the TV with no device connected.

If that does not help it means that there is an internal fault and that the TV must be tested and repaired replacing the defective part.

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