Polaroid P40LED13 powers up then shuts down

[Alastair E]

Re: Polaroid P40LED13 powers up then shuts down

Corrupted F/W on mainboard causes this fault. on the MB82 Vestel...

[speedypro]

Re: Polaroid P40LED13 powers up then shuts down

I, too, have this same issue. Used air can on chips but tv turns on then back off. Are you saying this is a MB and not a power board issue?

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Good work

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

update!!!! replaced mainboard tv now been working fine for nearly a week now, thanks again all

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Thats really odd, at this point Im unsure whats causing it to crash like this mate with out having it in front of me Will have a check on the web and let you know if I find anything got to be firmware related unless you missed something obvious. I presume you left the Usb in till the set came back on too ?

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

menu pics

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

Yes that is the link that i used to download from MB82 V.0.84
just powered up the tv again to take pics of menu, while taking them tv switched off about 6 times different colours on screen each time red, green, pink etc
will download pics in a few minutes

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Just the menu in general. Also link I use:

http://www.vesteldriver.com/TV_MB82_CORE_UPDATE.html

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

think update i got off vesteldriver.com was 17mb80*** awkward as all in turkish, I think it is still a software fault on this tv
mainboard number is 23115995 23115994
do you want a picture of menu if so which page of menu
may well have the board off you if it will sort this tv

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Did you download the Vestel Driver 17mb82-2 ? Also got image of the menu system ? Also dont give up yet I wouldn't, if you do I have a board for this set for £20.

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

spent far too much time now warming boards and components nothing seems to make it shut down, just seems to do it when it feels like it sometimes 10 - 15 mins sometimes 30 -45 mins between shut downs. I have noticed though it seems to start back up pretty quick certainly a lot quicker than a normal power up from switched off.
Is it possible I have installed the wrong core update, or would it just not start with wrong update.
May try and source a used mainboard and put that in

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Freeze spray U46 common fault on thse see if it stays on longer.

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Your mb is at fault still, you need to heat it up and see if it shuts off faster.

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

hi have just been applying heat from hairdryer over boards not created a shutdown, tv is on now just waiting for it to shutdown when it feels like it

[vinceroger69]

Re: Polaroid P40LED13 powers up then shuts down

can you isolate what part/area is causing it too shut down using heat or freeze spray

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

refitted thermal pad under board and fitted a heatsink on top of chip with thermal paste, still shutting down after 10 15 minutes

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Use silicon thermal plaster to mount it. Before though check if there is a thermal pad under the board.

[london-freddie]

Re: Polaroid P40LED13 powers up then shuts down

will try adding a heatsink now

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

Heres one I did, the thermal pad was removed under the Pcb so I replaced that and adding a heatsink to the chip too. It gets hot and with no thermal pad it will overheat and crash the set.

[ReeceyBurger123]

Re: Polaroid P40LED13 powers up then shuts down

The Cpu might be overheating has it got the thermal pad under it ? I had one where someone removed the Cpu cooling pad causing the set to shutdown as the Cpu got too hot. Also check all screws are in and wires tightly pushed in.