CFD-G500/G500L
SECTION 4SECTION 5
MECHANICAL ADJUSTMENTSELECTRICAL ADJUSTMENTS
PRECAUTION
TAPE SECTION 0 dB = 0.775 V
1. Clean the following parts with a denatured-alcohol-moistened
swab :
Y Standard Output Level
record/playback headpinch roller
Output terminalHP OUT
erase headrubber belts
capstanidlersload impedance32 &
2. Demagnetize the record/playback head with a headoutput signal level0.25 V (�10 dB)
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)Y Test Tape
3. Do not use a magnetized screwdriver for the adjustments.TypeSignalUsed for
4. The adjustments should be performed with the rated poWS-48Awer3 kHz, 0 dBtape speed adjustment
supply voltage (9V) unless otherwise noted.
Tape Speed Adjustment
Torque MeasurementProcedure:
ModeTorque meterMeter readingMode: playback
2.95 � 6.86 mN Y mAdjust so that the value on the digital frequency counter is
FWDCQ-102C(30 � 70 g Y cm)3,000 Hz.
(0.42 � 0.97 oz Y inch)digital frequency
test tape
counter
0.15 � 0.53 mN Y mWS-48A
FWD
CQ-102C(1.5 � 5.5 g Y cm)(3 kHz, 0 dB)
Back Tension
(0.021 � 0.076 oz Y inch)32 &
more than 5.88 mN Y m
set
FFCQ-201B(more than 60 g Y cm)
(more than 0.83 oz Y inch)
more than 5.88 mN Y mi jack (J391)
REWCQ-201B(more than 60 g Y cm)
Specification Value:
(more than 0.83 oz Y inch)
Digital frequency counter
2,940 to 3,060 Hz
Tape Tension Measurement
ModeTorque meterMeter reading
Adjust so that the frequency at the beginning and that at the end of
more than 100 g
tape winding are between 2,970 to 3,030 Hz.
FWDCQ-403A
(more than 3.53 oz)
Adjustment Location:
Tape speed adjustment
control inside motor
(M971)
12 |
ACEC
