[ortek_service]

Yes, it seems the Japanese etc. designers were rather fond of arranging everything on these CB circuits, to cram as much as possible on one sheet with little regard to more usual conventions on drawing circuits with logical-flow to aid understanding
And it does look like their own Low-dropout PNP-based regulator, from the days before LDO voltage reg IC's were common.

And the SAMS Photofacts service manuals would redraw the circuits across many sheets(Although I didn't always find these necessarily much easier to work with, like the original R&TV servicing books re-draws to fit across several pages).