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TAPE ADJUSTMENTS
2. MOTOR REPLACEMENT AND SPEED ADJUSTMENT
(1) Motor replacement
3. CHECKING THE MECHANISM TORQUES
• Clean the head, capstan and pinch roller before making any measurement.
(2) Motor speed
1. Insert the test tape (MTT-111 or etc. 3,000 Hz) into DECK A.
2. Press the PLAY button.
3. Adjust VR311 so that the frequency counter show a reading
of 3,000 ± 10 Hz.
4. Press the STOP button.
DE
K " A & B"
Measureent Take-up torque Back tension Tape tension
Cassette for PLAY : TW-2111A PLAY : TW-2111A Drive-power cassette
measurement F.FWD/REW : TW-2231 TW-2412
PLAY 25 ~ 63 gr.cm 2.0 ~ 6.0 gr.cm 70 gr or more
F.FWD/REW 60 ~ 120 gr.cm - -
TAPE SPEED
ADJUSTMENT
VR311