Service manual for: JVC HR-S7722 (7700, 7711) and equivalents these VCRs ?
 

Is it available(preferably for free and on the Internet): service manual - for the VCR: JVC HR-S7722 ?
It is also probably for VCR: JVC HR-S7700 and JVC HR-S7711.

Maybe at least there were/are some equivalents of these VCRs from: Philips* or another company that might "fit" these JVC VCRs ?

* As is probably for example for: JVC HM-DR10000 - compared to: Philips VR 20D.