5. Maintenance
5.1 Maintenance Scheduling
Routine maintenance is necessary to keep the MX-5050 in peak operating condition. The
following is a chart for a suggested maintenance schedule.
Maintenance Time Table
Adjustment Item
Before Each
Session
Every 3 to 6
months
Refer to…
Demagnetizing
✓
§5.2
Cleaning
✓
§5.3
Lubrication
✓
§5.4
Pinch Roller Pressure
✓
§6.5
Equalizer (REP, REC) Setting
✓
§§7.3.3 & 7.4.4
REP, REC Level
✓
§§7.3.2 & 7.4.3
Bias Adjustment
✓
§7.4.1
Tools Required for Maintenance
Tool Part No. Used for
Cleaning Kit
ZA-51B
Cleaning the Head
Isopropyl Alcohol Included in ZA-51B
Cleaning the Tape Guide, Capstan, Pinch Roller,
Capstan Shaft
Head Eraser Any Demagnetizing the Head, Guide
Lubrication Oil
PZ9E003
Lubrication for Capstan Motor
5.2 Demagnetizing
Demagnetizing (sometimes called degaussing, although that term is more often applied
to bulk tape erasure) is a necessary procedure and should be performed before every
recording session and prior to performing any alignments. Demagnetizing should always be
done with extreme caution.
DEMAGNETIZING CAUTION: To avoid damaging the MX-5050, always make
sure the POWER switch is off before proceeding. The AC field created by the
demagnetizer is extremely powerful and could seriously damage the electronics
if they are on. Make sure that all recording tapes, especially alignment tapes, are
removed from the vicinity of the MX-5050.
Never turn the power to the demagnetizer on or off unless it is at least 1-meter (3 feet) away
from the MX-5050. When the demagnetizer is turned on or off, an extremely strong moving
magnetic field is created which could possibly place a permanent magnetic charge on parts
of the machine. The demagnetizer would not be powerful enough to remove these charges
under normal circumstances, and the parts might have to be removed and discarded. Use
only a demagnetizer with high flux density; inexpensive “Hi-Fi” type demagnetizers can leave
residual fields that will cause more harm than benefit.
1. Turn off the MX-5050 POWER switch.
2. With the demagnetizer at least 1 meter (3 feet) from the MX-5050, plug the
demagnetizer into the AC mains and turn it on.
3. Slowly move the demagnetizer toward the Supply Tension Arm until the tip is
approximately 3 mm (1/8") away from the arm.
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