Panasonic TH-42PX60U Locks up

[cre8kos@insightbb.com]

Plays fine for 5 to 15 minutes then picture and controls lock up. Cycle power comes back on fine for another 5 to 15 min. Any help on which board may be causing this problem?

[efan]

Re: Panasonic TH-42PX60U Locks up

Did you check fans, there is feedback from fans to cut the power off.

[Toasty]

Re: Panasonic TH-42PX60U Locks up

Any power LED blinking? Does it lock up on just TV or any source video?

As efan said, check the fans. They get clogged and this sounds like an overheat problem.

Have the back off while testing? Direct a fan at the DG board area to keep cooling.

Check power board voltages when normal and failed.

Sounds like either the H board or (more likely) the DG board (MCU).

T

PS - Sudden problem or was there an "event" that could have caused this? Lightning storm or power surge?

[cre8kos@insightbb.com]

Re: Panasonic TH-42PX60U Locks up

No blinking. Steady on. No event. Just started last week. Some times the picture freezes and sometimes it goes to a multi colored screen. Remote and onboard controls inop. Cycle power and it's back to normal for a while. Will check fans and try other measures. Thanks.

[tom66]

Re: Panasonic TH-42PX60U Locks up

Reseat the LVDS cable... if you need help locating it post some pictures.

[cre8kos@insightbb.com]

Re: Panasonic TH-42PX60U Locks up

I'll check and take pictures tomorrow. Thanks for your help.

[Toasty]

Re: Panasonic TH-42PX60U Locks up

>> Some times the picture freezes and sometimes it goes to a multi colored screen. <<

That's the DG board for certain.

T

[cre8kos@insightbb.com]

Re: Panasonic TH-42PX60U Locks up

I have pulled the DG board. I've located several on line. My question, is the suffix code important or will any of them work as long as they are the right part number?

[tom66]

Re: Panasonic TH-42PX60U Locks up

If you can get one with a matching suffix, go with that. It can sometimes be important, but only Panasonic could confirm whether or not it prevents parts working together.

[Toasty]

Re: Panasonic TH-42PX60U Locks up

What is your original number?

Should be TNPA3903BBS or BBT. Tri-State Module has them for $31 with 6 mos. warranty.

http://www.tristatemodule.com/p-2321...h-42px60u.aspx

T

[cre8kos@insightbb.com]

Re: Panasonic TH-42PX60U Locks up

Thanks for all your help. It's on it's way.

[Toasty]

Re: Panasonic TH-42PX60U Locks up

Any news?