MX-5050 Operation and Maintenance Manual
May 1992
Section 7 Audio Alignment
7 - 11
7.4.5 Low Frequency Reproduce Equalization Adjustment
1. Thread a blank tape on the machine.
2. Connect the external oscillator to the CH1 and CH2 input connectors.
3. Set the Monitor button to SOURCE positon. Confirm that the VU meters
indicate 0 VU.
4. Press down the Monitor button to TAPE position. Set the machine to the
speed which is most often used. Confirm that SW201 and 101 on the
REC/REP AMP PCB has been set to the ON position.
5. While Record the signal from the oscillator, adjust VR105 on the REC/REP
AMP PCB Assembly so that the VU meter indicates 0 VU. Make the same
adjustment for channel 2 using VR205.
7.4.6 Sel·Rep Level Adjustment
1. Thread the machine with the tape of the type normally used for sessions.
2. Press the 1kHz Oscillator button to activate the Test Oscillator.
3. Adjust the Input Level Knob so that the VU meters indicate 0VU.
4. After recording approximately 30 seconds of 1 kHz tone on the tape, rewind
the tape to the starting point.
5. Set the Monitor button to TAPE position. Press down the both SEL-REP
buttons to place the machine into Sel-Rep Mode.
6. Adjust VR101 (SEL-REP LEVEL) on the REC/REP AMP PCB Assembly so that
the CH 1 VU meter indicates 0 VU.
7. Repeat Step 6 for 2 channel using VR201.
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