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DC-2212/220Z
e
DECK
I ADJ
USTM
ENT
(with auto tape selector function)
1. Head Azimuth Adjustment
Mode
PLAY
Tape selector
NORM
®
Set VR901
and VR9O2
(playback level adjustment) to MAX positions {turn fully clockwise)
Input signal/test tape
Play 10kHz—20aB
portion
of STD-331B
test tape.
(Fig. 12-6)
Adjustment location
Measuring location
Adjustment value
Remarks
Head azimuth adjust-
TP1
(L)
Maximum
playback
Apply "screw-
ment screw.
TP2 (R)
signal level.
lock" after Com-
pleting adjustment.
2. Playback Level Adjustment
¢ Adjust precisely since this adjustment sets the playback Dolby level.
Tape selector
Mode
Input signal/test tape
Adjustment location
| Measuring location
Adjustment value
Remarks
NORM
PLAY
Play the 315Hz OdB portion
VR9O1
(L)
TP1
(L)
—7.7dBv
of the STD-331B
test tape.
VR9O2 (R)
TP2 (R)
(412mvV)
e
DECK
I
ADJUSTM
ENT
(with auto tape selector function)
1. Head Azimuth Adjustment
¢ Set VR301
and VR302 (playback level adjustment) to MAX positions (turn fully clockwise)
Tape selector
Mode
Input signal/test tape
Adjustment location
| Measuring location
Adjustment value
Remarks
NORM
PLAY
Play 10kHz—20daB
portion of
Head azimuth adjust-
TP1
(L)
Maximum
play-
Apply "screw-
STD-331B
test tape.
ment screw.
TP2 (R)
back signal level.
lock" after com-
(Fig. 12-6)
pleting adjustment.
2. Playback Level Adjustment
®
Adjust precisely since this adjustment sets the playb ack Dolby level.
Tape selector
J
Mode
Input signal/test tape
Adjustment location
| Measuring jocation | Adjustment value
Remarks
NORM
PLAY
Play the 315 Hz OdB portion
VR301
(L)
TP1
(L)
| —7.7dBv
of the STD-331B
test tape.
VR302 (R)
TP2 (R)
(412mv)
3. Recording/Playback
Frequency
Response Adjustment
Tape selector
Mode
|
Input signal/test tape
Adjustment location
| Measuring location
Adjustment value
Remarks
NORM
REC
REC/PLAY
©
Change the test ta
Tape selector
pe and the DOLBY
NR switch
position and check
that the frequency
4. Recording Level Adjustment
Input signal level to
be applied to the
CD/VIDEO terminals.
Apply a 315Hz signal
to the CD/VIDEO termi-
nals. Set the CD/VIDEO
switch to ON.
1
VR841 (L)
VR842 (R)
Record 315Hz and 6.3kHz
signals on the STD-608A
test tape, and then play-
back signals.
Input signal/test tape
Adjustment location
TP1 (L)
TP2 (R}
TP1 (L)
TP2 (R)
response
zone
indicated
in Fig. 12-8, 9 is satisfied.
=
Set the INPUT
level control to
the maximum
position (rear
panel).
—27.7dBv
(41 mv)
Repeat the recording and palyback
processes and adjust accordingly until
the 6.3kHz playback level is within
O + 0.5dB of the 315Hz
level.
Measuring location
Adjustment value
42
tape, and then play the
signal back.
NORM
REC
Apply a 315Hz signal
Input signal level to
TP1 (L)
—7.7dByv
Set the INPUT
to the CD/VIDEO termi-
be applied to the
TP2 (R)
(412mvV)
level control to
nals. Set the CD/VIDEO
CD/VIDEO
terminals.
the maximum
switch to ON.
position (rear
panel).
REC/PLAY | Record the 315Hz signal
VR501
(L)
TP1 (L)
Repeat the recording the playback
onto the STD-608A test
VR502 (R)
TP2 (R)
processes, and adjust accordingly until
tape, and then paly the
a playback level of —7.7dBv (41 2mV)
signal back.
is obtained.
METAL
REC/PLAY | Record the 315Hz signal
TP1
(L)
Check that the 315Hz playback level
onto the STD-610 test
TP2 (R)
is —7.7dBv + 1.5dB.
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