Just an FYI, I stripped a 55D6420 Monday. At one point, I tried to power it up with the LEDs unplugged from the PSU which resulted in a flashing red light and a pulsing power supply. My power supply would click about every second if I remember correctly. Your symptoms make me wonder if you have an LED out.
Hello mate could you read the voltages from psu main connector with led disconnected
Tom I for one am just confused by the fact that there is voltages on the input pins and by the fact the supply cycles with or without anything connected to it. I've heard replacing the main cures this but I can't fathom how or why.
Possibly due to low load on the PSU outputs, or some kind of failed communication that the power board is attempting to perform.
Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
The fuse by the plug ? It's a/c so one probe other side of fuse other probe to other input wire I guess. If you're getting voltage on the main filter cap you're getting a/c through the fuse.
That seems to be OK. It doesn't make much sense to test the voltage across a fuse, it gives you very little info.
Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
No immediate suggestions. I need one to work on myself and look at.
Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
Ok so I just learned my PS is active high not low like I thought. It stops cycling when PSON is held low and only voltage present is 5VSB. Apparently it's not tolerant of a floating input and I wonder if 5v is too high for it ?
I pulled the PSON pin from the socket and grounded it and plugged everything back in. The power supply is nice and quiet but the power light still flashes albeit a little bit different. Hot and cold make no difference to it must be component failure somewhere on it.
Sorry forgot to update swapped psu with mates and my board powered his tv so tried my main and his tv fired straight up so scratched my head s bit went home and stripped full panel to find 4 blown led, s jumpered the pads after removal tv fired up and worked perfect could not tell 4 of the leds wont there replaced them anyways and tv was a good un
All in all was the led light strip
these are in pairs and disconnecting one good strip from the other wont work as they must fire in order
Comment