thread the tape over the guides, head, capstan and onto the takeup
(2) Record voice using microphone at both 3.7S i.p.s. and
(3) Record music from an external radio or other music
source using attachment cord through BRIDGE INPUT connector.
at both 3.75 i.p.s. and 7.5 i.p.s.
(4) Rewind the tape and play back the recorded portions
through the internal speaker.
(S) The reproduced voice and music should be clear and
intelligible on the internal speaker.
(6) Repeat steps (4) and (5) using an external speaker
connected to the EXTENSION SPEAKER jack.
TAPE SPEED TEST.
A stop watch and a 1200 foot roll of tape
The tape shall be marked
are required to perform the tape speed test.
to identify three sections each of which are 450 inches (37.5 feet)
One section shall be marked at the beginning, one section at
the mid-portion, and one at the end of the tape.
Thread the tape on the recorder.
Set the Speed control for 7.5 i.p.s.
Using the stop watch, check the time required for each
marked section to pass a given point on the top plate.
The time required for passage of each section of the
tape shall be: front end section, 60 +3 seconds; middle section,
60 +1.2 seconds; and rear end section, 60 +3 seconds.
(s) Rewind the tape and repeat step (3) with the speed
control set for 3.75 i.p.s.
(6) The time required for passage of each section of the
tape shall be: front end section, 120 +6 seconds; middle section,