Panasonic plasma tv won't come out of standby

[Acerman]

I have a 42 inch plasma tv (txp42c2b). It won't power on properly and is stuck on standby with a continuous red led blink . When switched on I can hear the relay click but it goes no further.I think that it is a single blink followed by a pause and then repeated over and over again.
A bit of internet research leads me to think that 1 blink means dg board (main AV board). This is my first choice to test. Can anyone give me a good voltage test to test the main board.

[Andrew F. Ali]

Re: Panasonic plasma tv won't come out of standby

The 'click' you hear when plugging in the TV suggests that the Power Bd is OK. Count the number of flashes the red make. I think though that you may have a SC Bd problem. That is the board on the left, looking from the back. Post clear focused pics of the TV so we could see how the boards are interconnected so the more experienced than me could respond to you.

[Acerman]

Re: Panasonic plasma tv won't come out of standby

Thanks for response.
The previous owner told me that he changed the power board and that it made no difference. And some clicking noise from the relay is normal isn't it.
The red standby led blinks continuously. it blinks once followed by a 3 second pause and the blinks again. That is repeated over and over again without stopping. I think this is a single blink in the panasonic diagnostics. A single blink on a panasonic plasma normally indicates the AV board. I want to test it but don't know which test to do. I am fully conversant with using a digital multimeter to test voltages on a TV with the rear panel as ground.

[Andrew F. Ali]

Re: Panasonic plasma tv won't come out of standby

Yes 1 blink could mean an A Bd problem. Unplug, clean and reseat all the connector cables and see if that helps. And please, post clear focused pics of the TV so we could see how the boards are interconnected so the more experienced than me could respond to you.

[Acerman]

Re: Panasonic plasma tv won't come out of standby

Here are the photos

[ReeceyBurger123]

Re: Panasonic plasma tv won't come out of standby

Id start by testing the SC board and SS as these sets the SC and SS have a habbit of blowing, if they are good then try mainboard.

[Acerman]

Re: Panasonic plasma tv won't come out of standby

Thanks Reeceyburger. I will have a look at both .