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Record/Playback/Erase Head Azimuth Adjustment
Procedure:
1. Mode: FWD/REV playback
test tape
P-4-A100
(10 kHz, –10 dB)
set
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 1 dB.
L-CH
peak
output
level
R-CH
peak
screw
position
3. Phase Check
Mode: FWD/REV playback
test tape
P-4-A100
(10 kHz, –10 dB)
L-CH
set
R-CH
i (headphones) jack (J301)
Screen pattern
in phase 45 ° 90 ° 135 ° 180 °
Good
4. After the adjustment, lock the screws with locking compound.
level meter
32 Ω
+
–
i (headphones) jack (J301)
within
1dB
within
1dB
screw
angle
L-CH
R-CH
peak
peak
oscilloscope
32 Ω
V
H
+
+
–
–
32 Ω
Wrong
Adjustment Location:
– 18 –
screwdriver
FWD
(forward)
REV
(reverse)
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