BUSH DLED32165HD DEAD

[kennyc]

Hi Guys ,set is dead no stand by light . Has a strange vestel power supply its a 17IPS11, have got 330v on cap and 28V on the parallel diodes that feed the cold side of the board . Disconnected power supply from main board and have a 12 V supply on one pin going to main board from power supply . Problem is i dont know if there is a way to tell if its the power supply or main board thts faulty . Main board is 17MB82S. Any ideas, Thanks

[Keith]

Firmware failure is common with this chassis. It is generally model specific. You could try programming the flash ram with a file from a different make / model and it might get it going!

[kennyc]

Thanks Keith ,so you reckon the fault will be on the main board?

[Turnip]

Hi Ken,

You didn't mention the main board and I have a 17MB62-2.5 with just the same problem - Chris.

[kennyc]

Hi Turnip the main board is a 17pw82s which looks like your board except the socket from the power supply is shorter and has less pins

[Turnip]

Hi Ken, and thanks,

Not yet seen one, but will now know when I do - Thanks again - Chris.

[kennyc]

Hi Guys, the board the main board thats in the tv is a 17pw82-2 . Ordered a power supply but still the same . Ordered a main board so will let you know what happens

[Keith]

When you get your replacement board, after confirming it all works, it is very beneficial to read and save the contents of the spi flash if you have the equipment to do this, always remove the flash IC to read to be sure of good data!

Saving these data files can help in the future.

Keith

[Turnip]

Hi Keith,

Recall a chap suggesting we should collect data via USB socket with the MB60 series. Tried it on later models where seems the method is different, as chap admitted.

Clue us if you can do it via USB, otherwise it's a bit messy.

Must admit most Vestel Eeproms can be read on the board if you jiggle the clip a bit - Chris.

[Keith]

Hi Chris,

It's the SPI Flash 25XX devices data, as these contain the boot loader data. And even though you can sometimes read / write in circuit, it is always best to obtain a good usable dump with device removed, you then know your data is 100% correct.

the USB dump method will produce several files, but these can only be used if the will start and will not correct a corrupt boot loader. So if you have a programmer it is a good idea to copy the data from the 25xx chip, and I usually copy the 24xx chip if used, as newer sets don't always have them, the 24xx generally have user data stored in them, channels and picture setting etc.

Keith

[kennyc]

Hi guys it was the main board . Only clue was that there are 4 diodes in parrallel on the power supply and they read 28V on them . Hope it may help if any of you gets same fault. Thanks for your help

[Turnip]

Hi Keith, and thanks.

The thought of removing the chip, then trying read it in the clip, then replace it is horrid indeed.

Note there are cheap packs of headers available to solder the chip to read using EZP2010 or similar, but the whole business seems rather time consuming and messy just to copy data when the clip seems to do it in circuit, if you can get it on straight - find usually takes at least ten tries and a wiggle.

Tend to think that if you get a bin that looks the biz, it might well be the biz, but admit have small experience yet in programming new devices - Not so surprised that folks go for a board from the Flea, if can get all the dozens of options correct - Chris.

[downunder]

Hi Chris,

Sounds like it's time to abstain from that Turnip wine.

Would help in focusing the peepers and steadying the hand.

Concerned     Bruce

[Turnip]

Hi Bruce,

It's a thought, but I never consume the Turnips whilst into Eeproms - Recall some years ago, when I had grown some really fine stuff, I wasted an entire morning considering a tubed TV problem from different angles, but couldn't quite come to any useful conclusion - Fun though.

Thought is - Keith feels that Eeproms need to be removed for data capture, whereas I seem to get data using the clip with chip in situ, but not at all sure if it's accurate as have yet only re-programmed a few but with some success.

Some folks seem to feel that to read or re-programme, the chip needs to be off the board, either in the crap clip provided, where it jumps about a bit, or soldered to a PCB header - where it doesn't, but it's fiddly biz, so just wanted thoughts from folks who've done quite a few - Chris.

[fix2003]

Vestel firm ware please save to usb stick 17MB60 to cure Flashing Front LED fault which is now getting very common



This is how to

Plug empty USB Stick in to usb port (must be empty else will try coping file from stick into tv !!)

Switch on set Access hidden Menu by

Pressing MENU button then 7935

select
Copy NVRAM data



You should get 2 to 7 bin files maybe more