Missing resistor? Viewsonic VP930B

[sghill99]

I have a couple of Viewsonic VP930B monitors. I noticed that the power supply for the one that works has a 4.7K resistor. The power supplies that failed prematurely did not have this resistor.

Do you think the premature failure of the power supplies has anything to do with this missing resistor?

The VP930B power supplies all look the same with the exception of this missing resistor!

Thanks much!

[PlainBill]

Re: Missing resistor? Viewsonic VP930B

I have a couple of Viewsonic VP930B monitors. I noticed that the power supply for the one that works has a 4.7K resistor. The power supplies that failed prematurely did not have this resistor.

Do you think the premature failure of the power supplies has anything to do with this missing resistor?

The VP930B power supplies all look the same with the exception of this missing resistor!

Thanks much!

What was the nature of the failure?

PlainBill

[sghill99]

Re: Missing resistor? Viewsonic VP930B

I didn't dig into what the failure(s) were, the monitors just wouldn't fire up. Each of the bad power supplies had some bad caps which I replaced. I went out to Fry's yesterday and picked up a 5 pack of the resistors and planned on installing them this weekend to see if they brought the supplies back to life...

I looked over the power supplies to see if they were any different than the ones that didn't have the resistor. I didn't see any difference between them...