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D-W400
ADJUSTMENTS
EINSTELLUNGEN
REGLAGES
TAPE 2
PLAYBACK GAIN ADJ.
Einstellung der
Wiedergabe-Verstakung
Réglage de gain
a la lecture
IC301L
R52R
R52L
PLAYBACK
GAIN ADJ.
Einstellung der
Wiedergabe
-Verstakung
REC LEVEL ADJ.
Réglage du gain
a la lecture
Einstellung des
Aufnahmepegels
Réglage du niveau
d'enregistrement
| Bias CURRENT ADJ.
Einstellung des
Reglage du courant
Aufnahmepegelregler
de polarisation
Commande de niveau
d'enregistrement
Fig. 7
Abb. 7
D-W400
Measuring Instruments
. Audio generator
. Electronic Voltmeter
. Attenuator
. Frequency counter
PWN
@
Jigs, Test and Check Tapes
. Head mounting jig
. 400Hz, Dolby alignment tape
. 12.5kHz, azimuth alignment tape
. 3,000Hz, tape speed alignment tape
. Mirror tape (for tape running check)
. for US,CS
NORMAL alignment tape (New UD tape)
CHROME alignment tape (New EX tape)
New METAL tape (New ME tape)
Onhwn-@
7. except US .CS
tEC STANDARD TAPE I (Nor.)
(EC STANDARD TAPE II (CrO,)
IEC STANDARD TAPE IV (Metal)
@ Positions of Knobs
1. Tape Speed Adjustment
Input
Adjustment value;
Adjustment point
Semi-fixed volume
inside of the motor
Tape speed
3000 +30 Hz
Alignment tape
-10
Adjustment procedure
Connect
the frequency counter to the LINE OUT termi-
nals, heat-run the unit for 20 minutes or more. Then, Play-
back the alignment tape and adjust at the middle of the
tape so that the TAPE 1 and TAPE 2 speeds are the same.
Motor
crew Driver
Fig. 8
2. Recording/Playback Head Azimuth Adjustment
Input
Adjustment value | Adjustment point
Azimuth adjust-
ment screw
Azimuth
;
Maximum
output
alignment tape |
Adjustment procedure
Connect
the electronic
voltmeter
to the LINE
OUT
ter-
Recording Volume control (R36)
TAPE-1 tape select switch (S8)
| (Note 1)
| (Note 1)
TAPE-2 tape select switches
(S3, 4)
Dolby NR switches (S7}
3. Playback Gain Adjustment
Adjustment point
R10L, R (TAPE 1)
R11L, R (TAPE 2)
Input
Adjustment value
Dolby
alignment tape
520mV
Adjustment procedure
Connect
the electronic
voltmeter to TP1L,
R, playback
the Dolby
alignment
tape in TAPE
1 and adjust so that
the
reading
of
the
electronic
voltmeter
indicates
the
adjustment value.
Perform the adjustment in the same way for TAPE 2.
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