Sony TC-766-2 Service Manual page 19

Stereo tape deck
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Record Equalizer Adjustment
Setting:
MONITOR
switch:
TAPE
Procedure:
Mode:
record and simultaneous playback
af osc
SONY SLH-S1
63
(blank tape)
o
attenuator
MIC (L & R)
1. 1kHz, 25uV (-90dB)
2. 25kHz, 25uV (-90dB)_
LINE OUT (L & R)
a
ae ee ea
L102 (L-CH)
Same LINE OUT
and
level at both
L302 (R-CH)
frequencies.
Level-difference allowance of 25 kHz signal
from 1kHz:
OdB—-34dB.
Adjustment Location:
— audio amp
board —
L102 (L-CH)
R302 (R-CH)
| TC-766-2
TC-766-2
|
Record
Bias Trap Adjustment
Setting:
MIC REC control:
0
LINE REC control:
0
Procedure:
Mode:
record
BIAS
OSC UNIT
Adjust
VTVM
reading
L106 (L-CH)
7
minimum
L306 (R-CH)
Adjustment Location:
— audio amp board —
433
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£106 (L-CH)
L306 (R-CH)
23
Dummy
Coil Adjustment
Setting:
MONITOR
switch:
TAPE
Procedure:
Mode:
record and simultaneous playback
af osc
ae
oO
attenuator
stereo record and
simultaneous
play back
L channel record
and simultaneous
play back
R channel record
and simultaneous
play back
Adjustment Location:
— audio amp
board —
L107
(adjustment for R-CH)
SONY
SLH-S1
(blank tape)
Record VTVM
reading.
same VTVM
reading as in
step 1.
L307
(adjustment for L-CH)
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24 —

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