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Page Title:
Audio output and distortion test (CONT) |
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 SB 740-91-01
Step
Setting and Instructions
Normal Indication
(6) Turn meter range switch to lower
It should indicate 8%
range and repeat adjustments of
or less.
above until null is obtained.
Record distortion as indicated
on TS-723B/U meter.
(p)
Disconnect 600 ohm resistor from
terminal F and connect to terminal S
of Test Cable No. 1.
(q)
Connect TS-723B/U meter leads C and D
to Test Cable No. 1 terminals S and A,
respectively.
(r)
Perform steps (i), (j), and (k).
(s)
Turn volume control of R-442/VRC
It should indicate at
fully clockwise
Record indicationleast 7.75 V (100
mW).
on TS-723B/U meter.
(t)
Disconnect TS-723B/U meter leads C
and D from Test Cable No. 1
(u)
Set TS-723B/U meter range switch to
0.3 Vrms.
(v)
Connect TS-723B/U meter leads C and D
It should be between
to Test Cable No. 1 terminals K and A,
0.16 and 0.31 V.
respectively. Record indication on
TS-723B/U meter.
B-50
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