Akai CS-705D

NOTE: Two different types of REC/PB Heads
(P4-303 and HN-424822) are being employed
in the CS-705D. Because the installation
plate of both heads differ, when replacing
this head, replace with the same type head as
previously used.
1. RECORDING/PLAYBACK HEAD HEIGHT
ADJUSTMENT (Refer to Fig. 8)
Playback a 4 track 1,000 Hz pre-recorded test tape
and adjust the number of spacers between the head
and P.C tape guide so that equal maximum output
level between +1 VU to 3 VU is obtained on both
channels.
2. RECORDING/PLAYBACK HEAD
AZIMUTH ALIGNMENT ADJUSTMENT
(Refer to Figs. 8, 9)
Playback a 10 kHz Azimuth Adjustment Test Tape
and adjust Rec/PB Head Azimuth Adjustment Screw
to obtain maximum output.
At this time connect an oscilloscope to the line
output and confirm that the left and right output
waveforms are in-phase.
If not in-phase, because the azimuth adjustment has
not be made to optimum point, repeat adjustment.
3. HEAD ADJUSTMENT PRECAUTIONS
1) Be sure to clean the heads prior to adjustment.
2) As the use of a magnetized driver or other
magnetized tools in the vicinity of the heads will
cause the heads to become magnetized, use only
demagnetized tools for head adjustment.