Originally Posted by trdracing5
I have a 37" LG LCD (model 37LC2d) that has been diagnosed as needing a new power supply. The total to fix was quoted as $400. That is way too much for me to put in to a 2 year old LCD TV.
How hard is it to replace the power supply myself?
Remove the back plastic cover (2-5 min)
Remove the connectors (probably 3 - 4 connectors; total 20 sec)
Remove the power supply board - usually 4 screws only (1 min)
Install the new power supply board (1 min)
Re-insert connectors (20 sec)
Put the cover back on (2 - 5min)
Total time: 10-15 min.
The capacitors in switched mode power supply do not store lethal charge and will discharge fully almost immediately after you switch the TV off. However, to prevent any possible zaps, hold the power supply PCB at its edges.
.... make sure you disconnected the mains (110 / 120 or 220 / 240 V AC) first!
.... power supply replacement at your own risk.