Please help me finish my PAS-2 upgrade

With the wires from CN4 connected to PC-5 and PC-6, I measure 275V.
The 47K resistor isn't accessible from the top of the cap board.
Both of the 10K resistors on the board measure 9.8K across them.
By "read short" I assume that means that, with the meter set at its lowest reading (200 ohms), there is no meter response (which is the case, except for the end of one of the 10K resistors where the meter reads 03 ohms)

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Measurements of CN4-2 to 10K resistors : 0.3 to nearest end of upper resistor, short to the other end and to the ends of the lower resistor.

Measurements of CN4-1 to 10K resistors: 0.3 to nearest end of lower resistor; short to the other end and to the ends of the upper resistor.

With wires connected, 120VAC from variac: CN4-1 - 278 DC volts, CN4-2 - 273 DC volts

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The cap board came fully assembled. Should I remove it in order to have access to the solders and traces and thus be able to make some measurements?

OK, I have; it's easy to do.

I notice that the board has 3 resistors R1, R2, and R3. They're all mounted on the top of the board. All three are 1W and all have the same color code (brown/black/orange) which of course means 10K. All of them measure 10K +/1 5%.

Although the the chart shows R3 as 47K, the resistor labeled "R3" on the board is a 10K.

Could this be part of the problem?

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My meter is a Wavetek DM5XL.

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Here are the photos of the top and bottom of the cap board.

if there are issues with the pcb, 'pm' me and I will help you out with our power supply kit. And yes, there needs to be a 47K resistor. It should have two 10K's and one 47K.

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Just as all of us, I'm sure, I have a large number of different resistors in my parts drawer.  But Murphy's Law prevails: the one I need is the one I don't have.  I did find a couple of 2W 47K resistors, but they're ancient, and have drifted to 59K.  But caps (some, and not the best) and resistors (most) I can source locally here, which I intend to do tomorrow.  From what I can see, that will reduce, but not necessarily eliminate the problems.

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i replaced the 10K R1 resistor on the board with a 47K.   I then measured the pinouts. Disappointing.  Here they are:

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PeterCapo wrote:

billinrio wrote:i replaced the 10K R1 resistor on the board with a 47K.   I then measured the pinouts. Disappointing.

It was R3 that needed to be replaced.  Please put the 10K back into the R1 location and the 47K in the R3 location.  Then, please repeat all your readings with the variac measured at 120 VAC.

My bad!

Here are the readings with R3 @47K and R1 @ 10K.

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I will take your advice about keeping the mains voltage down to 120VAC.  It's a temptation to try to get the numbers up by cranking up the variac.
I was wondering whether some of the tubes might be at fault - even though they measure "good" on my tube tester, which is ancient.  Googling, I came across a guitar forum (I sometimes think that if it weren't for guitar players, tubes might be unavailable for audiophiles) where there is a discussion about low plate voltages, and somebody suggested removing the tubes and then measuring voltage at the tube pinouts.  I started to try this (with the voltage quite a ways down on the variac), but the readings were quite high, so I discarded that idea.  
Should I think about replacing the capacitors on the board? Could it be that one or more of them is faulty? I assume that I can't measure them with my capacitance tester while they're in the circuit.

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I've received no responses from the many e-mails that I've sent to the seller of the cap board. He should send me a replacement board, but obviously, that isn't going to happen. I'll have to look around for an alternative.
What kind of rough ride would I be in for if I try to remove the caps?
There are two 1N-5400 diodes (D3 & D4) in the circuit. Could they possibly be a source of the problem?