I picked this set up for free a month or so ago, finally had a little time to test it out and found one of the back light transformer open circut. Bought a new (used) inverter off ebay and I still get no response from power button. The main is turning on the power supply when plugged in and all voltages are correct, It is not sending the blon signal out. I verifed the button board is good and I can see the button pulses on the main board. At this point Im sure the remaining fault lies in the main. I get spot on voltages out of the two 1.8v regulators and the 3.3v reg. At this point Im thinking the eeprom is corrupt. I was going to use the resistor from vcc to sda but when I pulled the datasheet it doesn't have an sda pin. Im fairly sure Ive got the right chip, there are only 2 8 pin ics on the main a-
MX
2sl3205d
16 bit serial flash memory
and
mp1482ds
Synchronous Rectified Step-Down Converter
Attached is the datasheet, if Bud Or Tom could verify this is the correct chip and enlighten me as to the correct sequence to reset it.
MX
2sl3205d
16 bit serial flash memory
and
mp1482ds
Synchronous Rectified Step-Down Converter
Attached is the datasheet, if Bud Or Tom could verify this is the correct chip and enlighten me as to the correct sequence to reset it.
Attached Files
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