Author Topic: Panasonic TX-26lxd70  (Read 584 times)

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Gonzini

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Panasonic TX-26lxd70
« on: January 11, 2018,14:34:04 »
Hi guys
Just joined the forum :)
I'm still using an ageing Panasonic TX-26lxd70 which from time to time doesn't always power up from cold.
It looks like when it gets to the point were the backlight would strike it drops out and i just get a flashing red power LED.
After a 2 or 3 power cycles with the main top power button it can start up OK.
Its has but not very often seemed to reset after being on for a while, usually loose the remote control after that happens.
I've just tried the factory reset with the V/- + i on the remote but think its more hardware like a cap failing in the PSU maybe.
Also i wondered if it is actually the backlight tubes, i read today that it has been mentioned on a certain vintage with these Panasonic's.
Anyone come across this problem with this model?
Not removed the back yet and checked the ESR on any caps, i guess if it gets worse I'll end up getting more involved.
Cheers

Mulja tv repair portal

Panasonic TX-26lxd70
« on: January 11, 2018,14:34:04 »

downunder

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Re: Panasonic TX-26lxd70
« Reply #1 on: January 12, 2018,02:53:43 »

Welcome to the forum, Gonzini.  Perhaps this is your problem.                      Bruce

Gonzini

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Re: Panasonic TX-26lxd70
« Reply #2 on: January 12, 2018,16:33:29 »
Hi, Thanks!
Interesting PDF that, I've just checked my S/W and its at 5580-10000
Not sure how their version numbering works but the update mentioned is 3090 which appears to be a back step but maybe not...!
Tried a quick search for sddl_7lxdv3090.zip but nothing came up.
Is there a source out there for Panasonic F/W for these older TV's?
Cheers

Mulja tv repair portal

Re: Panasonic TX-26lxd70
« Reply #2 on: January 12, 2018,16:33:29 »

downunder

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Re: Panasonic TX-26lxd70
« Reply #3 on: January 13, 2018,02:14:15 »

Nah! Checked the oceana website but nought there. Of course, I d expect mfrs would delete older firmwares as time progresses in order to force you to buy another tv. Good luck with it.                         Bruce

downunder

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Re: Panasonic TX-26lxd70
« Reply #4 on: January 13, 2018,04:17:10 »
Just checked my old notes but nothing leaps out at me. Factory reset:

Press and hold VOL +/- for 3+ seconds> Go to SYSTEM in Factory Mode Menu. Enter 999 to reset

Will upload service manual to downloads section.     Bruce


Later:- sorry, internet's slow - timing out. Will try again later.
« Last Edit: January 13, 2018,04:58:37 by downunder »

Gonzini

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Re: Panasonic TX-26lxd70
« Reply #5 on: January 14, 2018,18:38:21 »
Hi Bruce
Thanks for having a look, whats this oceana website you speak of?
I did find the service docs on the web some time back.
The reset you suggest, do you think that's the same thing as i had already done? Looked like a full factory reset as it asked me for all the first time details (which i skipped..!)
Cheers

Mulja tv repair portal

Re: Panasonic TX-26lxd70
« Reply #5 on: January 14, 2018,18:38:21 »

downunder

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Re: Panasonic TX-26lxd70
« Reply #6 on: January 14, 2018,22:07:04 »

Oceana refers to the Pacific area. This includes Australia, NZ, SE Asia. Don't know about your reset - did you go through it to 999?

Still haven't been able to upload the service manual - something wrong at quuq end, I suspect.                             Bruce

Gonzini

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Re: Panasonic TX-26lxd70
« Reply #7 on: January 15, 2018,14:27:07 »
I see.
I did find a public Panasonic ftp site, ftp://ftp.panasonic.com/pub/Panasonic/call_center/firmware/
Nothing of use there for me.
The reset i did was V/- & i on the remote.
It brings up a self test screen and after power cycling initiates a factory reset.
I didn't have to input any numbers other than resetting the pin to 0000.
I tried your way of holding Vol + & - but all its does is keep scrolling.
Will have a look through the service data for the factory reset, the i found out was on a forum somewhere. Can't find it now!
Managed to upload the service data from here yesterday, i didn't quite get how the upload works out so its outside the Panasonic folder.
Cheers
« Last Edit: January 18, 2018,18:24:26 by Gonzini »

jordan

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Re: Panasonic TX-26lxd70
« Reply #8 on: January 15, 2018,14:50:57 »
panasonic chassis LH64
Greeting from Slovenia
Jordan Čebron

Gonzini

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Re: Panasonic TX-26lxd70
« Reply #9 on: January 18, 2018,15:49:30 »
Thanks Jordan, I had uploaded the service data for the TX-26/32 LXD70 the other day.
Well hopefully good news, I've managed to find the firmware update which covers a number of chassis.
Version EU_HD_UK_LGSAM-v5640.SEC seems to be the cure, have to see how it works out.
I had a feeling by what it was doing it was related to the backlight tube(s)
Found it on avforums.com, a thread talking actually about this issue with the uneven mercury distribution in the tube over time making it hard to start.
I had almost given up looking, then found it  :yahoo:
Will upload to the files section, I'm sure I'm not alone. Its still a great TV for my use. I use it mainly with a Humax 1100 Freesat box with HDMI.
Cheers for your help, it did motivate to keep looking :)
« Last Edit: January 18, 2018,16:08:56 by Gonzini »

 

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