Sony TC-377 Service Manual page 14
Stereo tapecorder
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Also See for TC-377:
- Owner's instruction manual (16 pages) ,
- Owner's instruction manual (20 pages)
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6. Playback
Output
Level Adjustment and
7. Playback Equalizer Adjustment
Level Meter Calibration
Control/Switch Setting:
TAPE SELECT switch:
NORMAL
. TAPE
SELECT
switch:-
NORMAL
'TAPE SPEED
selector:
7% ips (19 cm/s)
TAPE SPEED selector:
7% ips (19 cm/s)
MONITOR switch:
TAPE
MONITOR switch:
_
TAPE
Control/Switch
Setting:
Procedure:
Procedure:
1.
Mode: playback
J-19-F 1
(2nd tone, 400 Hz)
—
:
LINE
OUT
Memorize
VTVM
reading.
LINE OUT
,
2.
Mode:
playback
:
J-19-F7
Adjust
R316, R416
for
0 dB (0.78V)
VIVM
4th tone, 10 kHz
reading.
Adjust R327, R427 for 0 reading on RECORD
LEVEL
meters.
Change
TAPE
SELECT
switch
to
SPECIAL
-3 dB (0.62~0.55V).
Adjust R313, 413 to obtain the same VTVM
reading as in step 1.
Adjustment
Location:
Playback
the following tones
and make
sure
:
R316.
R327
that each tone
output
level deviation against
playback amp circuit board
L-CH
L-CH
3rd tone is as follows.
Frequency
(Hz)
Deviation
242dB =o
from 3rd
0+2dB | 0+2dB
tone
(400Hz)
a
2,.542dB | 4.5£2dB
Adjustment Location:
R416
R427
R-CH
R-CH
=
20S
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