JVC MX-GA9V Service Manual page 37

4.3 Arrangement of adjusting positions
Cassette mechanism section (Mechanism A section)
Head azimuth
adjusting screw
(Forward side)
Cassette Mechanism Unit Section
Head azimuth
adjusting screw
Playback
(Reverse side)
head
Cassette mechanism section (Back side)
Head azimuth
adjusting screw
(Forward side)
Playback, recording and eraser
heads or playback head
Tape speed ADJ
Bias ADJ L
Bias ADJ R
Head azimuth
adjusting screw
(Reverse side)
(No.MB011)1-37