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RXD-M47MP
QQ
3 7 63 1515 0
Tape Speed Adjustment
1. Set the function switch to TAPE.
2. Connect a frequency counter with a 32 ohm dummy load to the stereo headphone jack. (See Figure 3.)
3. Insert and play back a 3 kHz test tape (Teac MTT-111 or Equivalent) into the tape mechanism.
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4. Insert an insulated alignment tool and adjust the tape speed potentiometer (MOTOR) until the
L 13942296513
frequency counter indicates 2940 Hz to 3090 Hz.
Bias Oscillator Frequency and Level Adjustment
1. Set the function switch to TAPE and the record and play tape mechanism to RECORD.
2. Connect a VTVM and frequency counter to test point R/P HEAD.
3. Adjust bias oscillator coil T360 until the frequency counter indicates 81 kHz ± 0.5 kHz.
4. Confirm the record head voltage equal to: 6-12V.
5. Confirm the erase head voltage equal to: 15-24V.
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ADJUSTMENT
FREQUENCY COUNTER
Figure 3. Tape Speed Adjustment
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DUMMY LOAD
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