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Playback
Frequency
Response Adjustment
Procedure:
Mode:
playback
PLAYBACK
HEAD
switch:
2 TRACK
SONY
J-19-F2
(2nd tone, 400 Hz, ~-10 dB)
(3rd tone, 10kHz, -10 dB)
(4th tone, 12.5kHz, -10 dB)
LINE OUT (L & R)
Adjust
the pattern
connections to obtain the
specified values.
Playback
Level difference from 400 Hz
10kHz
roan
12.5 kHz
within +2 dB
Adjustment Location:
— audio amp board —
pattern connection
pattern connection
Note: After this adjustment perform the play-
back level adjustment.
TC-766-2
Playback
Level Adjustment
Procedure:
Mode:
playback
PLAYBACK HEAD switch:
2 TRACK
SONY
J-19-F2
(1st tone, 400 Hz, OdB)
LINE OUT (L & R)
| Adjust | VTVM readling
RV104 (L-CH)
0.44V (-5 dB)
RV304 (R-CH)
"ae nV) dB
Note:
Level
difference
between
L
and
R
channels should be within 1 dB.
Mode:
playback
PLAYBACK
HEAD
switch:
4 TRACK
Check LINE OUT (L & R) levels.
Level difference from 2 TRACK:
within 7 dB
Level difference between L and R channels:
within
4dB
Adjustment Location:
— audio amp board —
RV104 (L-CH)
RV304 (R-CH)
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