Panasonic:
Panasonic manual possibly here:
Download Panasonic PV-M1349 OMNIVISION PV-M1349_2079.part08 ✅ VCR, VHS, tape drives service manuals and repair information
www.eserviceinfo.com
Possibly the large electrolytic in the PSU (reservoir capacitor) O/C, as it looks like it might be a huge hum bar.
Sansui:
The blue circled componnet is the switch-mode transformer, so an integral part of the power supply. Without a schematic it's difficult to make any suggestions - obviously the burnt out resistor is an issue, but what does it do, and what made it burn up (and what value is it). I would suggest seeing if it connects from switch-mode transformer to a rectifier, and if that rectifier is S/