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Equipment Repairs => LCD TV forum => Topic started by: kennyc on March 20, 2015,05:48:35

Title: BUSH DLED32165HD DEAD
Post by: kennyc on March 20, 2015,05:48:35
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Keith on March 20, 2015,09:20:45
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!
Title: Re: BUSH DLED32165HD DEAD
Post by: kennyc on March 20, 2015,10:27:51
Thanks Keith ,so you reckon the fault will be on the main board?
Title: Re: BUSH DLED32165HD DEAD
Post by: Turnip on March 20, 2015,12:45:50
Hi Ken,

You didn't mention the main board and I have a 17MB62-2.5 with just the same problem - Chris.
Title: Re: BUSH DLED32165HD DEAD
Post by: kennyc on March 21, 2015,03:52:30
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Turnip on March 21, 2015,13:15:30
Hi Ken, and thanks,

Not yet seen one, but will now know when I do - Thanks again - Chris.
Title: Re: BUSH DLED32165HD DEAD
Post by: kennyc on March 24, 2015,11:45:17
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Keith on March 25, 2015,08:50:26
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Turnip on March 25, 2015,13:24:33
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.
Title: Re: BUSH DLED32165HD DEAD
Post by: Keith on March 26, 2015,05:23:27
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
Title: Re: BUSH DLED32165HD DEAD
Post by: kennyc on March 26, 2015,09:29:05
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Turnip on March 28, 2015,10:24:43
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.
Title: Re: BUSH DLED32165HD DEAD
Post by: downunder on March 28, 2015,15:28:33
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
Title: Re: BUSH DLED32165HD DEAD
Post by: Turnip on March 29, 2015,12:29:31
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.
Title: Re: BUSH DLED32165HD DEAD
Post by: fix2003 on April 10, 2015,02:49:52
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
Title: Re: BUSH DLED32165HD DEAD
Post by: kennyc on April 10, 2015,05:58:46
Hi Fix2003 ,does this work on all the vestel 17MB boards or just on the MB60?
Title: Re: BUSH DLED32165HD DEAD
Post by: fix2003 on April 11, 2015,02:46:16
not yet had one later than mb60 to try


but I do not think this will work on sets before mb60
Title: Re: BUSH DLED32165HD DEAD
Post by: mickcon1 on May 11, 2016,07:01:44
hi there how do you program the bin files back to the tv while its on flashing light have copyed the files from working set just cant program it back to same set thats sittting on flashing front led thanks
Title: Re: BUSH DLED32165HD DEAD
Post by: fix2003 on May 12, 2016,03:20:57
if the led is flashing I do not think you can do it from usb stick
you need bin files for 24xxx and 25xxx and suitable programmer

the 24/25 files will be special to each set
but sometimes you can get away with files for similar set so worth trying
Title: Re: BUSH DLED32165HD DEAD
Post by: mickcon1 on May 12, 2016,05:14:10
so how do i get the 24xxx and 25xxx files would i need to lift the eeprom and read it
Title: Re: BUSH DLED32165HD DEAD
Post by: fix2003 on May 13, 2016,03:25:47
yes would need to remove and read 24xx and 25xx from good working set of same spec
Title: Re: BUSH DLED32165HD DEAD
Post by: swan47 on January 12, 2017,14:32:35
Hello
         I have the same set.Bush DLED32165HD.. comes on 7 blinking red led`s and that it.was guesting it was the psu.but reading a lot more it the main av board..it need firmware updates.mine mb is 17MB82S   32180896..if you can help me out send me a link via my email i be most greatful thanks.Nigel.......nw28754@gmail.com...
Title: Re: BUSH DLED32165HD DEAD
Post by: jordan on January 12, 2017,14:44:39
17MB82S
Title: Re: BUSH DLED32165HD DEAD
Post by: filipemisa on October 07, 2018,06:17:17
olá pode enviar o software para mim, o link esta off