If soldering small items is a problem try fixing it while solder the first pin.
There are some slightly different HAA15-0.8-A Power supply out there. Mine is different from this: http://www.cs80.com/crowbx/psmod.html
Mine has a slightly different layout. I used two 2k2 Ohm resistors. parallel to R52 and R79.
The Voltage is now adjustable between 8- and 20Volts.
So no Problem to justify for 19Volts.
You have to solder a diode at the output of the 15V regulators
Documents:
Crowbx_mount_calibration_carrier_rev1.pdf