Personal computing discussed
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Latebuthere wrote:Can anyone upload a pic of the Atmel 24c256 chip? I cannot find it to save my life! Thanx!
Latebuthere wrote:Can anyone upload a pic of the Atmel 24c256 chip? I cannot find it to save my life! Thanx!
Latebuthere wrote:Can anyone upload a pic of the Atmel 24c256 chip? I cannot find it to save my life! Thanx!
turboroe wrote:lukeim wrote:Samsung LCD TV - LNS4051
Can anyone Tell me what this black thing is ? And should there be voltage on CNI 801 & CNI 802 when TV is on?
Can anyone HELP??
This is the inverter. Do NOT touch the HOT part of the board. This inverter itself works with up to 2000V and will fry oscilloscopes and multimeters, and will kill you, so be carefull.
Don´t try to mesure the output (where the blue and white cables are connected).
The inverter input is an oscillating high voltage PWM controlled by 2 mosfets. Something between 150V and 380V.
There is a very dangerous 380V line in the HOT part, so be very carefull.
The inverter is turned on by a pin on the top-left connector of your picture (right above the blown capacitors).
I´m not quite sure but i think it is the leftmost pin. This connector also has a 5V pin (i think it is the rightmost).
You can unplug the connector and then hot wire the 5V to the inverter pin to test if your inverter is working, the backlight should go on.