Bad EEprom 24C02 IC In LCD TV
I received this TV with no life and when I plugged in nothing happened just the front red LED was blinking and the TV did not turn on!
After opening the cover I faced with three PCB circuit boards such as power supply, main board and t –con board.
First I started with power supply I checked all the output voltages
I found all the output voltages to be good
In this model of Samsung TV, if power supply is good but TV does not turn on, the suspect is usually EEPROM- IC 24c02n and the program of this IC must have been corrupted.
Since I have the master copy of this EEPROM IC, by using an EEPROM programmer it was easy for me to overwrite the existing corrupted memory.
Once done the TV came back to life again
NOTE 1: Since this TV was old, it took me time to resoldered all the bad joints
NOTE 2: I also replace some bulgy electrolytic caps from the power supply before checking the voltages
NOTE 3: LA series of this Samsung TV was assembled just to export to IRAN but same model with another prefix code (LN. Or LE..) were assembled to export to other counties like USA and other countries
This article was prepared for you by Mr Beh from Iran
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