Realistic SCT-60 calibrating

Hello everyone,
I just got my hands on this Realistic SCT-60, and I've been looking for the manual everywhere on the internet and there is no result. The only option to get my hands on one is buying it on eBay but it's super expensive for a paper booklet, so maybe someone could help me here. 
Also, I've been wanting to record my own cassettes but would like some simple explanation on calibrating the volume and stuff, I'm new at this.
Thanks.