Schematics or Circuit Board Diagram of SC1500i Rackmount Tower

[IM]

First, I posted at Schematics for SC1500, but it seems my reply lost in purgatory. I thought a new topic may resolve my problem sooner:

If you have or are knowledgeable about schematics of SC1500i (SC 1500VA 230V Rackmount Tower 2U), I appreciate the info. I particularly need the resistance of R21 resistor (mine melted).

Here is a pic of around the part I needed in eBay: APC Smart-UPS SC 1500 Internal Main Circuit Board. R21 near T2, D38 & IC17.

Thank you.