VCO voltage on a Uniden PRO 520XL

[40sx]

Can someone advise me on the correct VCO voltage that is called for on a Uniden PRO 520XL and what perimeters are needed for it's adjustment. They are usually adjusted on channel 40 transmit, but who knows somethings could have changed, lol. Right now I have it set at 5.00 volts DC on transmit on channel 40 at the correct test point and everything seems to be working well. I got that voltage from a Uniden PRO 540e service manual I had laying around the shop.

Thanks,
Dennis