Power Supply Repair PS2494-Y

[croaker]

Hey everyone!
I need help recognizing element values.

[Jwillis]

I think you might have better luck taking resistance measurements since they don't look completely destroyed. Just pick the closest standard value. 

[croaker]

I measured it, unfortunately both resistors burned out.

[Jwillis]

Not giving up just yet. What we need to know is what relationship those resistors have with the components around it and the rest of that board. Need to be able to follow the traces to see where they go. A bottom picture might help. 
I can see that the one side of the resistors are connected to that one large plain but can't determine how they are connected to the components around them.If we can determine the purpose of those components then we may be able to figure out plausible values.

I could not fine a schematic but did find this PDF which shows a layout. A few  revisions were made so the placement of those components are different. The big caps are film capacitors and the big coil is a choke ( inductor).

[croaker]

I had to draw a circuit from a printed circuit board. The burnt resistors performed a protective function (perhaps they were varistors). Here is a diagram, maybe someone will find it useful.

[croaker]

In fact, they were jumpers! 

[Jwillis]

In fact, they were jumpers! 

Perfect!! Where did you find the image?

[MathWizard]

On 1 of my stereo PCB's, they have the audio GND and power GND pins (of the speaker driver chips) soldered onto the same big solid GND plane, but they also put some little SMD cap across the pins too, with added pads.

So shorting a cap with a wire, for some higher frequency, the wire's parasitic's might be more of an impedance than those of the cap. So why short a cap on purpose?? Or I'm thinking backwards, is it too prevent a dramatic change in voltage between the 2 points, in a short amount of time, by adding a large enough capacitance ?

[croaker]

In this case we are dealing with a high voltage power supply (30 - 600 VDC), although the output is not clean DC. Here's what the manual says:
"There is no energy storage within the unit, such as electrolytic bulk capacitance. Therefore, the
output appears as unfiltered DC power with an AC power component, which is acceptable for its
intended use in electrodeionization."
Therefore, the binding of the logical COM to the output (-) is not entirely clear. Maybe this is a Chinese engineering school?