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samsung 37

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t1412:
morning fella's, just fitted a blank on this Samsung 37   the tv still keeps going off, when i'm trying to do adjustments in the service menu this is the first time I've replaced one what am I doing wrong thanks

shaun   

Keith:
It can take a minute or so for the processor to detect the blank eeprom and write data to it. If you turned the set off during this process, you could be back to square one, as the eeprom may have corrupt data again!

If you can get into the service menu you should select reset before you do anything else.

What is the model number of the set?

Keith

t1412:
hi keith it's a le37m86bd thanks

Keith:
Check all power supply lines are correct and clean, if the 3v3 line measures 3v1 it's wrong! Check for SDA SCL signals at start up.
If there were originally some faulty capacitors in the power supply it is highly possible that the firmware / boot loader has become corrupt, this is not stored in the eeprom. A replacement main board will be required. A fault in any circuit connected to the SDA and SCL can cause problems, unfortunately replacing a board at a time is the easiest way to find this.
Also check that the oscillators are running at the correct frequencies.
I will upload the service manual, but I need to compress it so it is small enough for the site.

Keith

I notice the manual is already in the download section.

t1412:
thanks for the info keith, when i selected calibration it does say dtv failure, has they say it's the first time for eveything, cheers ps it had 5 bulging caps, cheers

shaun

  

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