— REC/PB
instruments:
Signal Generator,
Conditions:
Dolby NR
Adjustment
REC/PB Output
Level
Distortion
Check
Frequency
Response
Check
System
H.D. Analyzer
and Blank Tape
OFF
REC Level.
. Maximum
Conditions
S.G. (400Hz OdB) LINE IN
TP5 (6) LINE OUT
. TP13 (12
Release
Pause
Button
and playback
it again.
S.G. (400Hz
OdB)
LINE
TP5 (6) LINE OUT
. TP13 (12
LINE
H.D.
Analyzer
Release
Pause
Button
and playback
it again,
If the distortion
factor exceeds the above, recheck Bias Current Adjustment.
METAL
Tape
insert
Cr02 Tape insert it
NORMAL
Tape insert
Adjustments
PLAY,
REC, PAUSE.
Adjust
VR703
(L.ch)
VR704
(R ch)
IN
Check that distrotion
a.
METAL
Tape.
OUT
b. SPECIAL
c. NORMAL
VR90
1 (L-ch)
it
VR902
(mh)
it
— 20
—
ON
Adjust for
Recording
and Playback
difference
must
be within
is within
following
.
. under
Tape.
under
Tape
under
40Hz—125Hz
.
. 5dB
10KHz--15KHz
. 5dB
40Hz
-125Hz...
5dB
10KHz-14KHz
.
. 5dB
level
ldB
range.
2%
2%
125Hz-10KHz,
. .3dB
125Hz-10KHz
.
. 3dB