LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

A check on the diode (D304) in diode-mode gives me a tone and a .00 on the reading..

I assume that means a direct short??

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

EDIT
Do you get any other voltages on the connector where you did the ACdetect test
https://www.badcaps.net/forum/attach...0&d=1329432948

Let me re-check that...

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

maybe try this,

Interesting idea.. Lemme assemble the parts..

I would assume it won't light the bulbs, as I get no reading on VS....

But ya know what happens when ya make an assumption..

Ya make an ass out of 'U' and 'umption'

EDIT: I hope you know I was trying to be funny and wasn't calling you an ass..

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

AC-DETECT test shows 4.46v at plugin and holds steady...

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Check the VA and VS points with the NEG clipped to the screw that was screwed into the base...

VS showed .036v

VA showed .001v

[selldoor]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

AC-DETECT test shows 4.46v at plugin and holds steady...

I mean voltages on the other pins on that connector - also shown in TW2005 s diagram.
(He is a plasmatition)

[selldoor]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Check the VA and VS points with the NEG clipped to the screw that was screwed into the base...

VS showed .036v

VA showed .001v

Yes sad isnt it It is never going to light a bulb - we are going to need a schematic ( I half looked the other day then gave up) or a picture of the back of the board - will need to be the best picture you have posted. If you cant get it really clear so we can see the traces dont bother posting it.

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Yes sad isnt it It is never going to light a bulb - we are going to need a schematic ( I half looked the other day then gave up) or a picture of the back of the board - will need to be the best picture you have posted. If you cant get it really clear so we can see the traces dont bother posting it.

K Lemme get on that right now.. Do you need the whole board or a specific section??

I'll also check the other pins of the AC-DETECT connector..

[selldoor]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

A check on the diode (D304) in diode-mode gives me a tone and a .00 on the reading..

I assume that means a direct short??

That might be ok depending on what your meter does. Not sure you get a buzz
on diode mode - did you press twice?
A Buzz suggests something there and meter may report overscale as .00

If you can get it into ohms try that .test one way should be over scale and when you reverse the probes a reading more than 30 ohms

Whole board would be good - four quarters might do. Need to follow where the traces go from the
vs/va sockets - not that I am very good at following circuit traces.

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

All the voltages check out on the AC-DETECT.. 17v, 5v all present in their appropriate pins..

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

If you can get it into ohms try that .test one way should be over scale and when you reverse the probes a reading more than 30 ohms

.4-.5 ohms both ways...

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Here's the best pic I can do with my crappy phone...

I marked the Y and X connectors for easier reading..

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

maybe try this,

TW2005, I do have a Rigol Scope if you think it might help in diagnosing...

And I am itchin' to use it!!!

[selldoor]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

.4-.5 ohms both ways...

Doesnt look good -but need to lift one leg to test again as it may be in parallel
to some high resistance.

Did you get your market cameras fitted - dont know when you have had time!

[CapLeaker]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

To help a little along here. SJ makes a power supply repair kit for 25$. Look at at the stuff they change out and check yours. http://www.shopjimmy.com/lg-eay60968...repair-kit.htm
Hopefully you not end up like

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Doesnt look good -but need to lift one leg to test again as it may be in parallel
to some high resistance.

OK, I'll de-solder the piece and see what readings I get..

Did you get your market cameras fitted - dont know when you have had time!

Yea, we have to put in a few outdoor and wifi cams, so I got about half of them done. It's pretty straight foward work. I was US Army MI during Desert Storm and specialized in Surveillance/Counter-Surveillance..

I can do it in my sleep. And often do!!

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

To help a little along here. SJ makes a power supply repair kit for 25$. Look at at the stuff they change out and check yours. http://www.shopjimmy.com/lg-eay60968...repair-kit.htm
Hopefully you not end up like

"I am definitely interested in THAT!"
-Keannu Reeves, THE REPLACEMENTS



I'll check that link.. Thanx

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Doesnt look good -but need to lift one leg to test again as it may be in parallel
to some high resistance.

OK, I de-soldered the D304...

When I use the meter in DIODE mode, I get 0L v one way and .20 v with a tone the other way...

When I use the meter in OHM mode, I get 20K ohm one way and .568M ohm the other way...

[selldoor]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Look at at the stuff they change out and check yours.

We have done that using another kit???

Michale cant make much of the traces but it does confirm there is nothing else
on the VS VA sockets .
Can you look on the back of the board - this section. Maybe the flash but
one side of that transformer doesnt look good?

[Michale32086]

Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else

Looks like a bubble...