Read Sony CFS-1055L Service Manual online
– 7 –
Record/Playback Head Azimuth Adjustment
Procedure :
1. Mode : playback
Procedure :
1. Mode : playback
Set
L
R
test tape
P-4-A063
(6.3kHz, –10dB)
P-4-A063
(6.3kHz, –10dB)
level meter
phones jack
32
Ω
L-CH
peak
peak
R-CH
peak
peak
L-CH
peak
peak
R-CH
peak
peak
Screw
position
position
output
level
level
within
3 dB
within
3 dB
screw position
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 3dB.
of output levels match together within 3dB.
Phase Check
Mode : playback
Mode : playback
L
R
level meter
L-CH
set
phones jack
32
Ω
R-CH
32
Ω
+
–
–
+
in phase 45
°
90
°
135
°
180
°
good
wrong
screen pattern
3. After the adjustment, lock the screw with locking compound.
Adjustment Location :
adjustment screw
Tape Speed Adjustment
Procedure :
Procedure :
Mode : playback
set
test tape
WS-48A
(3kHz, 0dB)
WS-48A
(3kHz, 0dB)
32
Ω
speed checker
LFM-30 or
digital frequency
counter
LFM-30 or
digital frequency
counter
phones jack
Adjustment Values :
Speed checker
Digital frequency counter
±
3%
2,910 to 3,090Hz
Frequency difference between the begining and the end of the tape
should be within 1 % (30Hz).
should be within 1 % (30Hz).
Adjustment Location :
tape speed adjustment
control inside motor
control inside motor
Click on the first or last page to see other CFS-1055L service manuals if exist.