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Equipment Repairs => LCD TV forum => Topic started by: Geoff S on March 09, 2018,08:11:18

Title: Panasonic TX-L37U3B Intermittent power on.
Post by: Geoff S on March 09, 2018,08:11:18

Hi all,

I'm sure I encountered this problem some time back.

This Panasonic TX-L37U3B won't always switch on, the stb light flashes as normal but doesn't turn green.

Every time I attempt to work on it, it works fine.

Ring any bells?

Geoff  :beer:

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: downunder on March 10, 2018,01:28:28

Hi Geoff,

Maybe needs a software upgrade similar to this model.                         Bruce

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: Geoff S on March 10, 2018,04:14:17

Thanks Bruce, I'll check that.

The only upgrade I could find for this particular model so far, is from 2011 and improves media play (via SD card slot I'm guessing).

Cheers for this.

Geoff

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: downunder on March 10, 2018,06:17:29

Forgot to add - try a reset. Press and hold V arrow on the panel then press menu. The self-check menu will appear, then power off at the mains. It will then require a first-time installation.                   Bruce

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: Geoff S on March 10, 2018,08:37:29

Good suggestion Bruce,

I did set it back to shipping condition and that seemed to help for a few days, but I will try your method and see how it likes that.

I didn't mention before, but when I first got to this Tv it wouldn't power up at all, just flickering red led, so, I performed the power on at mains while holding the power button on remcon. That got it back to life and then I set it to shipping and re-tuned etc.

I'll give your method a go.  :c017: Geoff

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: Geoff S on March 15, 2018,06:06:16

Ok, having reset to shipping condition plus self check procedure this set remains intermittently temperamental at switch on. However it is tolerable.

Curiously I get a call today for another identical model and identical fault.

This is probably the 6th Panasonic I've been called to in the last month. I don't often see them for repair and I suspect there may be a universal software problem.

Anyone?

Geoff

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: jordan on March 15, 2018,11:42:54

Problem with MB-probably upgrade software

Title: Re: Panasonic TX-L37U3B Intermittent power on.
Post by: Geoff S on March 16, 2018,05:44:09

Thanks Jordan,

I agree, it does seem like software, but I can't find anything for this model. The latest I can find is from 2011 and relates to media playback.

Cheers
Geoff  :iagree: