Having problems with your Flat Panel Televisions ?

I purchased a power supply from a well known distributor online and it is for Polaroid FLM-373b lcd tv. part # MLT070AX- and possible <<DOA>> If it is pluged in and power is @ the board should I have my supply voltages ALL present @ the output feed connectors all I have is standby 5v ?? no 12v no 24v and tv still wont turn on ..fuses all good..



Answers :

Yes , the SMPS unit will output the 5-Volt which is the feed to the main CPU- the processor. Now trace the +5 to the processor and check the oscillations on the processor. Only if the processor works and outputs to feedback to the SMPS will the +12 and +24 voltages come on.
\015\012Sometimes you might need a scope to check the loss of the signal or feedback or the processor data feed. Check if the standby light is On. Trigger with remote and check if the voltages come on momentarily . If so there is short in the main board and so you need to eliminate circuits and progress.

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I purchased a power supply from a well known distributor online and it is for Polaroid FLM-373b lcd tv. part # MLT070AX- and possible <<DOA>> If it is pluged in and power is @ the board should I have my supply voltages ALL present @ the output feed connectors all I have is standby 5v ?? no 12v no 24v and tv still wont turn on ..fuses all good..


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