Sanyo CE37LD33

[Keith]

Hi

EEPROM dump required

This uses a Vestel chassis 17MB12-3

EEPROM 24c64

EEPROM data appears to be specific to manufacturer and screen size!

Thanks

Keith

[Keith]

Just tried a file listed above, got the set working enough to show a screen fault. Customer now says they got it at a boot sale!
The original file was in Russian, I have changed it to English. The English version is attached.

Keith

[Ohm Supplies]

Keith.

Sorry, I can't download the attachment. Do you need the dump or is there another fault?

[Keith]

Hi,

I used a file in the eeprom data base at the top of this forum. This managed to get the set working, but in Russian! I changed the language to English and that file is attached in this thread.
Although the set was now working, it wasn't right. From the service menu I reset the NVM from ROM and everything was back to normal.
I have put the good file in the eeprom data base at the top of this forum.

The set would not work with a blank eeprom, also the eeprom data seems to be manufacturer and screen size specific.

As the Vestel 17MB12 seems very common, I think it would be a good idea to save the eeprom data for each make and model you see. Eeprom is in a socket, so easy to do.

Keith

[Ohm Supplies]

Kieth.

MOST sets need eeprom data to work, the problem we're seeing a lot of is when someone has shorted the eeprom to try to repair the set and the set now has 2 faults, Oddly enough, they never know why or who told them to blank it,

MOst eeproms hold data for screen info. which is why sometimes you can swap them from set to set but most times it either won't work or won't be 100% successfull. It sounds like "someone" tried to fix the set before it got to you the engineer.

regards
Andy

[g*****s]

Hi andy,Apart from samsung dont get many programing faults,or do i ?.Can you if you dont mind list some faults your encountering.Maybe might be a thought for mulja to ponder maybe.poss a little space on site for program errors ?As for samsungs great looking sets working,but can be hair pullers at times i find.

[Ohm Supplies]

Of sets made in the last few years, some LG, Sony, Toshiba, Philips, Baird, cello, neon, vestel clones etc have eeprom problems, I wouldn't list them as most need a correct program. The tenancy here seems to be shorting out & hope the micro rewrites which in itself is unreliable & can cause other problems in the board.
Eeprom faults are hardly new, the 1st time I really became aware of a reoccurring problem was on a r3000 deck. You'd of had eeprom faults if you've seen any quantity of repairs, but as you stated, you've not recognized them as that.

Regards
Andy

[g*****s]

Thanks for reply andy,most sets i see are 3,4 or 5 years old.So i have maybe not seen as many of your sort of faults.Got that to look forward to.But doing my best to try and keep up.

[Keith]

Most faults could be attributed to corrupt eeprom data! The fault with the set that started this thread was ' Only comes on in standby' The customer had been told by someone that it was not repairable! The original owner must also have been told the same as the current owner bought it at a boot sale for a couple of quid.
Some other eeprom faults I have come across are, goes off after a few seconds, intermittently goes to stand by, no sound, no picture, sound only on some channels, poor picture Etc Apparently HDMI eeproms also cause many picture faults, but I have not come across this myself yet.
As Andy says, eeprom problems aren't new, some of my files go back to 1998, I probably have older ones on back up disks somewhere.
Faults that don't make sense could be eeprom data!

I think firmware / software / operating system / data corruption will get worse now "smart TV's' are here.

Keith

[g*****s]

yes i agree,its only going to get worse.I find that most lcd faults can be curred by thinking logically.IE if no backlight,prob be inverter.ect.If you find yourself going round in circles,pulling your hair out,its prob a software prob.