Panasonic LSJB1260-1 Power Board Fault?

[speedypro]

Tv clicks when power button is pressed as if it's powered on but no display. No voltage output to both x and y boards. No physical damages. All caps and mosfets look ok and tested ok. Am I missing something?

[Daniel McKenna]

Re: Panasonic LSJB1260-1 Power Board Fault?

Have you checked Q406 for a short circuit? I have had a few sets recently with this power supply giving trouble.

[speedypro]

Re: Panasonic LSJB1260-1 Power Board Fault?

Have you checked Q406 for a short circuit? I have had a few sets recently with this power supply giving trouble.

No short but I have changed it. Same issue.

[Nick's Tvs]

Re: Panasonic LSJB1260-1 Power Board Fault?

Most of the time these boards don't go bad, what does go out is the main board or your logic board.
What would help is to know what kind of tv you have, with a model number of the set, and a pulled back picture of the circuit boards so we know what we are looking at.
Once we have that information, then we can start helping you.

[speedypro]

Re: Panasonic LSJB1260-1 Power Board Fault?

Most of the time these boards don't go bad, what does go out is the main board or your logic board.
What would help is to know what kind of tv you have, with a model number of the set, and a pulled back picture of the circuit boards so we know what we are looking at.
Once we have that information, then we can start helping you.

It's a Panasonic TH-42PX80BA

[Nick's Tvs]

Re: Panasonic LSJB1260-1 Power Board Fault?

Sorry if I was confusing, I was looking more for a picture of the circuit boardS
So with the back off an overall picture of the entire back of the tv so we can see how each board connects to one another.
Also what is the blinking code?

[speedypro]

Re: Panasonic LSJB1260-1 Power Board Fault?

Sorry if I was confusing, I was looking more for a picture of the circuit boardS
So with the back off an overall picture of the entire back of the tv so we can see how each board connects to one another.
Also what is the blinking code?

See attached

[Nick's Tvs]

Re: Panasonic LSJB1260-1 Power Board Fault?

Since you spent so much time on the power supply, I am assuming you checked for shorts as well on the VS and VA lines and did quick transistor and diode tests on the SC and SS correct?
If not definitely do that!
Do you get 15 volts coming out of the power supply?
Do you get an error code or does the tv actually stay on just without picture? If it does, do you get sound?

[speedypro]

Re: Panasonic LSJB1260-1 Power Board Fault?

Since you spent so much time on the power supply, I am assuming you checked for shorts as well on the VS and VA lines and did quick transistor and diode tests on the SC and SS correct?
If not definitely do that!
Do you get 15 volts coming out of the power supply?
Do you get an error code or does the tv actually stay on just without picture? If it does, do you get sound?

Sorry. I've only tested the power board. No volts output on VS and VA. No picture. When power button is pressed, it makes that click and that's it. Just the red standby light.

[speedypro]

Re: Panasonic LSJB1260-1 Power Board Fault?

D536 has a short but I cant find a replacement for it: JAPAN MA3DD82 861B. Any in the UK?