Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Green 10 ohm +/- .2
Red .1 ohm +/-.2
Green 10 ohm +/- .2
Red .1 ohm +/-.2
Attached Files
-
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
They all look ok then.Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Grrr.... Looks like I am just replacing the whole board.. Well, at least I know that it's likely the problem..Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
does the relay click on once when you turn it on or does it click back off?Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
http://www.ebay.ca/itm/LG-Power-Repa...item1e7a9db08a
i wonder if this kit will sort it?
kit contained 1 fuse (F302), 1 diode (D304) , two power resistors (R927, R929) and the IC301 voltage regulator IC.(found on another post)Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Seems to be all over the map...
http://sjfm.us/temp/50PK540-16.3gpAttached FilesComment
-
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
The AC is dead as a doornail...Attached FilesComment
-
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
The right Bridge Rectifier is pretty much the same as the left...Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Plugged in and switched on?
Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Well, it's plugged in.. It's one that has those "touch sensor" controls and I am not entirely positive I am actually turning it on...Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Well I dont think its possible to have voltage at the BIG cap if there is no ac at the bridge.
Test the Big Caps - all3Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Should have said it is sometimes usual when it is just plugged in for the caps to read
mains voltage x1.41 vdc approx then when you switch on it should rise to near 400vdcPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
All 3 big caps show 397v +/- 1 or 2 when the unit is plugged in..
Is that a good indication that it is turning on at plug-in??Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
It looks that way and the PFC must be working.
Did you test all the pins on the top two connectors with the VA & VS did you use the
panel ground tabs for the black lead - try again with a screw in.
Next locate where the parts are in Vinces repair pack - you have tested the two white
resistors are those the two resistors in the pack you also tested the fuse the fuse -
so can you find and test the diode.
Can you read the part number on the IC301
EDITLast para editedPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
What if I were to pull the connector from the mainboard and short the ON pin to ground to see if the unit is actually being turned on??Attached FilesComment
-
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
I actually re-tested the VS, just for sheets and greens. I hooked the red lead to the VS and the black lead to the GND on the connector.. Still dead...
Unfortunaltey, I don't have the equipment to check diodes.. YET
Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
If you missed it please read my last post again- now almost in EnglishPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: LG Plasma 50PK540 Lightning Victim LED Light Relay Clicks On Plug In Nothing Else
Diodes can be checked with your normal multi meter with the set unplugged when toms online maybe he will have some ideas what too check ive only ever worked on one panasonic plasma that was a easy fix.Last edited by vinceroger69; 01-20-2015, 03:50 PM.Comment
-
Hello,
I have been reading a few threads on here regarding Panasonic plasma tv's. I've found one thread which explains the same problem as mine, unfortunately the thread has not been completed.
I got a free tv (TH-50PX8EA) from a friend which shows no screen. When plugged in only one red light shows up and when pushing the ON button, the red LED turns of and will only turn on again when pressing the ON button again.
When plugging in the TV i hear two relays click fast and after a few seconds the third relay clicks.
I have measured the voltage in the VSUS line, which...06-18-2024, 12:58 PM -
I got this TV a little over a year ago from a coworker from my previous job. It’s a Samsung 46” TV, model number LN46b530p7f.
Problem:
Backlight cycles On and Off.
Basically, when the TV is turned On, there is a relay click heard from the TV PS board. The relay cycles On and Off 4 times in about 2-3 second intervals. Each of those 4 times, the backlights also cycle On and Off with the relay. The screen TFT isn’t cracked/damaged and appears to work - I can see a “no signal” image when the backlights turn On briefly – though the image is a bit dull/dark.... -
Hello
The red and green LEDs both light up and you can hear the relay click. (no picture, no backlight, no sound)
2-3 seconds later the relay will click again and only the red LED will stay on.
I would be very grateful for any advice or a little help.
circuit diagram?
Thanks very much -
Hi, I'm seeing one 9V relay having temperature 40C on its 9V (primary) side. Does that seem right? I switched 2 relays on that board and the temperature was the same (on the same position), so I'm sure it's not a faulty relay. I measured voltage on that relay and it was 9.5V DC, so that looks good. I don't see any other relay on that board having that kind of temperature and they have 9V on them too.
I thought maybe the transistor that is switching this relay keeps switching on/off, so I also checked for AC and there was almost none: 0.3V using mV range. No steady frequency was shown, but... -
Hi everyone!
I have this board that suddenly stopped supplying power to an output that drives an interchanger cleaner motor.
I checked while the board was in place with all wires attached and there's no AC voltage on the corresponding plug X5
This X5 is driven by fuse F8 (tested OK) which comes from the second orange relay
To make sure there are no charcoaled contacts inside the relay, I got a 24VDC power supply and got it ready to manually power up the coil side of these relays.
I respected the polarity, positive to cathode of protecting diode
So provided all...
Comment