Re: LG 42PC3D - Will Not Turn On (Standby Only)

the board you listed that you unplug what board is it? What it sounds like that maybe that board is fried and it causes the power supply to shut down from protection. What you did unplugging the board is the start of troubleshooting. Since the dvr hdmi port is bad maybe you got a surge through your cable tv that went through the hdmi into the video main board in the tv and that could be whats fried. There should be a way to uplug everything from the powersupply board and put the powersupply in service mode and check the power outputs...

Re: Samsung Plasma 50"

What board has the menu, ir control, and button controls on it?

Re: Samsung Plasma 50"

it could still be the power supply even if all the voltages are good?

I turned the tv on checked the voltages with just the gray screen. Vs ,Va good coming from powersupply. I checked the voltages at some test points on the y-sus board Vscan,Vs,Vsc-h all match the label on the panel. I then checked them all after turning the tv on and off a few times to get a picture and they all read the exact same thing

Re: Samsung Plasma 50"

Samsung PDP
Model:S50HW-XB02

also has this number in parenthesis (S50H-XD03)

Michael

Re: Samsung Plasma 50"

this tv has no speakers and no where to connect speakers , so no way to see if the sound works.

Re: Samsung Plasma 50"

No bulging capacitors, there is actually two boards for the powersupply one big one and one little one. I had the power supply tested at a tv repair shop, and they said it is good. I will work on getting some pictures....

I have been troubleshooting this tv for a while. It is a HP-P5071 Samsung 50".
I replaced the a/v input board because this tv was part of a JBL system and had one input from a special receiver. It quit working so I took it out of a house and started troubleshooting it . I looked up all the part# and concluded it is a HP-P5071. The problem is it does not want to come on properly I have to turn it on and off a few times to get it on. I checked the powersupply and all the voltages are within spec. When I turn it on it comes on to a light grey screen with no picture. I reset it a few times...