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5.
OPERATIONG PROCEDURE
Preliminary
Work
1.
Make sure t h a t the is suitable f o r the supply
voltage used, then set the supply voltage selector
to the supply voltage used. (See item ©
graph R E A R
P A N E L . )
2.
P r i o r to a c t i v a t e the P O W E R s w i t c h , adjust the
mechanical zero points of the
meter CD and D R I F T meter ©
(See items ©
and ©
3.
Press the P O W E R switch w i t h o u t applying
signal ; the I N P U T M O N I T O R lamp lights red.
A f t e r
idle running for 20 to 30 minutes, calibrate
the D R I F T meter to 0% w i t h Z E R O A D J control
@ .
If the J I S / C C I R of the I N D I C A T I O N buttons
©
is selected, set the O S C s w i t c h ©
then adjust the D R I F T
button is selected, set the O S C s w i t c h to 3.15kHz,
then adjust the D R I F T meter to 0%.
A c c u r a t e measurement is not secured unless t h i s
0% calibration
is performed.
12
in p a r a -
W O W - F L U T T E R
to the 0% point.
in paragraph F R O N T
P A N E L . )
input
to 3kHz,
meter to 0%.
If the D IN
How to Use as Wow-Flutter
1.
Connect t h i s meter and a test piece ( i . e., a tape
recorder, record player, etc.) as shown in F i g . 5 .
T o measure wow and f l u t t e r of a tape recorder,
use the tape f o r wow and f l u t t e r measurement,
or record the signal output f r o m the O S C terminal
©
on tape and play back the tape.
F o r measurement of a record player, use the record
. f o r wow and f Sutter measurement.
Note : F o r measurement based on J I S / C C I R S t a n d a r d ,
use tape or a record containing signals whose
center frequency is 3.0kHz. ( F o r measurement
based on D I N S t a n d a r d , the center frequency
shall be 3.15kHz.)
Meter
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