Looking for manual HP E3611A Power Supply (early S/N)

[Michael-VK2BEA]

Does anyone have a scan of the service manual for the HP E3611A power supply (early serial numbers) ?
I can find HP and Agilent manuals for S/N after KR20600101 but not one for the low S/N I have. (I can see differences in some component values between my unit and the posted schematic).
I think the calibration voltages may also be different between the two versions, so I don't want to do the calibration based on faulty information.