Read Sony PMC-D307L / PMC-D40L Service Manual online
– 11 –
3. Phase Check
Mode: playback
+
–
–
V
H
+
–
Screen pattern
set
L-CH
32
Ω
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
2
(headphones) jack
R-CH
32
Ω
oscilloscope
Good
Wrong
in phase 45
°
90
°
135
°
180
°
4. After the adjustment, lock the screws with locking compound.
forward
screwdriver
reverse
screw
position
position
L-CH
peak
peak
within
1dB
1dB
output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
screw
angle
angle
R-CH
peak
peak
Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: playback
1. Mode: playback
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.
of output levels match together within 1 dB.
+
–
–
set
32
Ω
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
2
(headphones) jack
Adjustment Location:
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