Sony CFS-1055 - Tape Head and Speed Calibration; Head Azimuth Alignment Procedure; Tape Speed Calibration Method

Record/Playback Head Azimuth Adjustment Tape Speed Adjustment
Procedure : Procedure :
1. Mode : playback Mode : playback
test tape
P-4-A063
(6.3kH7z, -10dB)
speed checker
LFM-30 or
test tape digital frequency
WS-48B counter
(3kHz, OdB)
phones jack —
2. Turn the adjustment screw for the maximum output levels. If these x
levels do not match, turn the adjustment screw until both of output phones jack
levels match together within 3dB.
Adjustment Values :
output +
L-CH jsvet. | -awithin sata Speed checker | Digital frequency counter
peak 3B 2,910 to 3,090Hz
|
| ' ae
| Frequency: difference between the begining and the end of the
l tape should be within 1 % (30Hz).
R-CH |
peak | ; ,
screw Adjustment Location :
position St er ——» screw position
L-CH R-CH ;
tape speed adjustment
REGK peek control inside motor
Phase Check
Mode : playback
Phones jack
screen patten
DOOGS
inphase 45° 135° 180°
good
3. After the adjustment, lock the screws with locking compound.
Adjustment Location :
adjustment screw