Re: Samsung PN51D550 unable to power on

Can replacement boards have different rev. numbers. Can I get an x-main with a R1.2 version be used with an y-main with a R1.3 version?

All other numbers between the old x-main and the new x-main are the same. (ame model NO, PCB NO, PBA NO HD, FHD)



Also do the ink stamps on the heat sinks matter? Some have matching numbers on pcb, but are stamped slightly different like DH G, or DF S or DF G. I do see the model number on this pcb is 50' DH/DF. So are all these boards the same if all matches except...

Re: Samsung PN51D550 unable to power on

So does this mean

1) it is NOT just a replace of x-main?

2) Or does this mean it could be x-main and something else?

3) Or not x-main for sure, and something else?

4) "Fill in the blank"

Re: Samsung PN51D550 unable to power on



Tom66, if you are referring to my images, yes I did unplug the x-main. From above info does that tell you anything?


Is there a test of just unplugging the y-main?...

Re: Samsung PN51D550 unable to power on

Here are the images....

Re: Samsung PN51D550 unable to power on

I am sorry I meant to say I get no clicking sound after unplugging x-main. I only get 5 second steady green light, then silent green off for 2 seconds. pattern repeats indefinitely.

I hope this is just bad x-main. Does y-main ever blow at the same time?

Ron

Re: Samsung PN51D550 unable to power on

Ever figure out why replaced board world for only one day? I unplugged x-main and get no response from tv. is this also a bad x-main? (as I read yours extra lily powered on black without the x-main.)

I have same PN51D550. Nothing looks burned out. And green light on logic board goes on for one second then off for 3 second. Repeating pattern 5-6 times.

I had same issue during warranty and Samsung authorized repair replaced something after 1 month new, but I was not present. Now tv died at 13 month mark.
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