Panasonic 58-TXAX802B Stuck on Panasonic Logo

[smpcomms]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

https://****************/dump/lcd_pd.../289-1-0-71552

Has anybody been able to successfully download this dump file? If so are you able to upload somewhere else or send to me directly

[Swen]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

No it is not.
I also searched and not found.
Even Panasonic himself does not want to give it.
There must be someone who copies it and puts it on a forum.
Unfortunately, it cannot be reached yet.

[Samui67]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Meanwhile i also found this dump in this russian forum - it is from 2013 (!)
But it seems that nowhere worldwide the complete dump for IC8903 seems to be available.
Pity us, no dump and no replacement board .....

[Swen]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

This is only DUMP for IC1600.
I personally need a DUMP for IC8903 eMMC (I have very bad blocks).

[Samui67]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Hi guys,

i am also new here with exactly the same problem. Would it be possible to correct the link in the post above for also can access the download? (Is this dump for the Panasonic Model No. TX-58AX800E - TX-58AXW804 - TX-58AXR800 LA53 Chassis?)
This would be really very nice. Thank you very much in advance.

....and a HAPPY NEW YEAR to all !

[Slmed11]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

https://****************/dump/lcd_pd.../289-1-0-71552

[Swen]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Hello,
did someone manage to get the original DUMP refill into the TNPH1100 2A board ???
Thank you.

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Bit of a pain then and better giving up on it as not worth the hassle of trying stuff out

Thanks for help much appreciated

[nomoresonys]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Not an expert but I believe you need to match the t-con and mainboard with the panel, the same model number can have different panels which can be incompatible with certain t-con and mainboards.

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Sorted out samsung tv managed to get exactly same model so happy thats all sorted now.

I'm going to be stripping the panasonic tv for parts now but just before I do I was wondering is it possible to put a different main board into the tv and use with the panel or would that involve changing the t con main board and power board ect basically all of it and would that even work.

Can the panel be used on another same size tv pretty much out all parts onto that screen and then turn it on.

Or are they set up basically just for that model type and not able to be used with other types

Surely the screen is a screen it's the other parts that send the image to it

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Hi turns out the ic1600 was the chip I needed I think and its called a winbond w25q64fvsig flash I took mine out out it in the machine it read the chip saved to laptop
Downloaded firmware from Panasonic then when I loaded that file it said it was to long so wouldn't open

Must be something else I need to flash to it

Instead I wrote the same info on chip back onto it and tries to fit back on board unfortunately I'm crap at soldering so instead think I burnt my board so after all that I have no idea if it would of worked so spares it is now for that tv

Should of got someone to solder for me instead unforuanlty I cnat get it to stick without solder being all over the chip pins

Thanks for your help anyway much appreciated ti make matters worse I smashed my Samsung tv screen so bad day for me

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

IC1600 looks like SPI flash memory.
Is there anything on the other side of the mainboard ?

Hi thanks for that info yes on the rear side there is another chip I shall when I get home send a photo to you to take a look

Where would I acquire the firmware dump for this tv

Can I just download new firmware from Panasonic and use that it is it a different kind of flash it does

New to this so pretty basic skill but if it works it works if not then not lost anything as tv is stuck anyway so may as well give it ago

I bought some device you out a chip into and it wooes and installs into chips

[diif]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

IC1600 looks like SPI flash memory.
Is there anything on the other side of the mainboard ?

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Photos attached

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Hi yes all 4 look identical to me

I took few more photos if they are any good
Watched a video last night on a samsung tv the man removed a 8vlegged chip out in this machine then put a new dump into it refitted tov then worked fine
Should hopefully be the same on panasonic tvs
It had exactly the same issue stuck on logo

Il post the link if any help to others
https://youtu.be/TBQsCu0dzUk

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Oh what an idiot I am I knew they were processors why did I think it was that part I needed lol

The bit I need is where the firmware is installed

I will take a closer picture for you of the area you mentioned and check them out and get back to you in a bit but I think they are the same yes but il check again

Thanks

[diif]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

1, 2, and 3 look like processors. I see RAM connected to No1, are all four black rectangles identical as a couple of them are obscured.

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

As requested photos of board I numbered so you can see and reply easier with the number of chip ect

I tried doing a usb firmware update but it doesnt even let you do that it just starts up stays on panasonic logo then turns of and gives u 13 flashes which I believe is loss of communication so could that be the big chip number 1
Or if not what part holds the firmware on the tv

Thanks

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

Yes, I did a quick Google of the mainboard and it seems Ro be covered with a large heatsink but if you want to add photos I can confirm.

Ok thanks when I get home il send some photos to you much appreciated

[Paul112004]

Re: Panasonic 58-TXAX802B Stuck on Panasonic Logo

I opened the TV up and found a Hynix H26M31003GMR. I have checked the voltages and everything seems to be within the parameters mentioned within the service manual.

My question now is, do I have to use exactly the same product to replace what I'll be removing? Also, do I need to flash the chip before I install it on the PCB?

The chip installed is a 4gb, 3.3v, MMC4.5 eMMC in an 11.5x13x1.0 package.

I've found https://www.mouser.co.uk/ProductDeta...5T%252BA%3D%3D that on mouser. Would that work?

Hi where did you manage to obtain the service manual please