9
DXA-WZ8D
3. Mode: Playback
4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the
pats adjusted.
SECTION 3
ELECTRICAL ADJUSTMENTS
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
Note: Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual.
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless otherwise
specified.
•Test Tape
Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: Playback
set
SPEAKER terminals (TM402)
L-CH, R-CH
+
–
level meter
test tape
P-4-A63J
(10 kHz, –10 dB)
Screw
position
L-CH
peak
within
1 dB
Output
level
L-CH
peak
R-CH
peak
within
1 dB
Screw
position
R-CH
peak
set
test tape
P-4-A63J
(10 kHz, –10 dB)
R-CH
oscilloscope
L-CH
R-CH
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
SPEAKER terminals (TM401
L-CH
DECK SECTION
Tape Signal Used for
P-4-A63J 10 kHz, –10 dB Azimuth Adjustment
0 dB=0.775 V
w
w
w
.
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9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
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8
9
4
2
9
8
0
5
1
5
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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