Pioneer SD-P40 Hello all,With all the power outages and so forth my Pioneer SD-P40 has decided not to power up completely. I have the green power light but no sound or picture. I have done the easy stuff like check fuses and a the TP's with given voltages, all read good on my DVM but it is almost impossible to find any schematics or photofacts for this TV. Any suggestions? Thanks, Bryan

replace the power supply on the plasma TV

There may be high current in the board as one of the component may be weak or out of order , please check the voltage out of the at the fuse holder , Please change the board ASAP..... or call

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You may have to change its power supply however, try this first

1. change your UPS coz the old one may have been damaged.

if that still didn't work, change your power supply

If the sound keeps working your probably just need a new lamp, if the sound does not stay on, you probably to get someone to fix the power supply.

Did you have double image before changing the stk's ? If not then there was no need to change them.. Pioneers are known for bad solder connections especially in the power supply section.. suggest checking that when you changed the stk's that there are no solder bridges between the pins of either stk ICs

had the same problem on mine.
Found loose solder terminals on the main power transformer, resoldered fixed it up about 5 min.

Have you tried to do set the convergence with a pattern on the screen? Some tv's have the pattern built right into the setup. Others do it auto just by pushing a button. Adjusting the pattern on one side of the screen may affect the other side, depending on how far out of whack it is.

Magnets (speakers) near by will play havoc with convergence.

Peter

yeah, I have the same issue... The tv worked fine, and now it will not turn on... the light turns green, then turns off and goes red...

Why? Please give accurate symptoms and I probably can help...T.

Check to see if Q118 is shorted on video/defl pc