Akai VS-220EV Service Manual page 8

IV. MECHANICAL ADJUSTMENT
4-1. BACK TENSION ADJUSTMENT
1) Remove the EJECTOR BLK. and disconnect J406
from P406 on the MAIN PCB. (Refer to dismantling
of EJECTOR BLK. to chapter I.)
2) Depress the Power button on the Front Panel.
3) Short pin @) and pin ©® of P406 to maintain cassette
tape loaded mode with a tweezer or some jamper
wires as shown in Fig. 4-1.
Fig. 4-1
4) Set the Back Tension jig (AT-751181) and put some
weight on the Back Tension jig as a stabilizer.
5) Press the PLAY button, then check and adjust back
tension as 30 ~ 35 g-cm by the TENSION HOLDER
position.
TENSION
ARM
TENSION
HOLDER
SUPPLY REEL
SLIGHTLY TABLE
LOOSEN
THIS SCREW
Fig. 4-2
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