Teac A-4070G - Tape Speed; Voltage and Frequency

FLUTTER
TAPE SPEED
VOLTAGE
Flutter should be measured in playback mode using a TEAC flutter
free tape YTT-2003-2002 and Meguro model MK665B flutter meter.
Measurement of flutter should be made in accordance with NAB
standards.
Values obtained with different standards or equipment cannot be
compared.
Flutter should not exceed. 7-1/2ips: 0.15%
3-3/4ips: 0.20%
These figures apply to any tape position and direction(such as
full take-up reel, full supply reel or about mid point).
The tape speed should be measured
using TEAC flutter free tape, model
Y¥TT-2003:2002. These tapes contain
a highly accurate 3 kHz tone.
Connect a digital frequency counter
to either line OUTPUT jack.
The indicated frequency should be 3
kHz +0.5% for all speeds.
TEST UNIT
FLUTTER FREE TAPE
FREQ. COUNTER METER
Fig. 6-6 Test Equipment Set-Up
AND FREQUENCY CONVERSION
Voltage Conversion
The A-4070G may be set for 100, 117, 200, 220 and 240V AC, to
change the voltage unscrew the fuse in the center of the volt-
age selector plug, pull out the plug and reinsert it so that
the desired voltage shows in the cutout, reinstall fuse.
Fig. 6-7 Voltage and Frequency Conversion
Frequency Conversion
Frequency change is accomplished by means of the frequency
change knob on rear of unit
1. Thread a tape on machine.
2. Start deck in playback mode.
3. While deck is operating, gently pull out on knob for 60 Hz
operation, push in for 50 Hz operation.