Table of Contents
Advertisement
2.
DRUM OUTPUT ADJUSTMENT
1. Adjust the take-up guide roller so that the FM
envelope output flattens as shown in D of the figure
below.
NOTES:
1. Fine adjustments are not required at this time.
It is sufficient if the tape is engaged with the
guide and that the servo operates properly
(control signal picked up).
. If the tape separates from the take-up guide or
wrinkling occurs, screw © must have been
excessively tightened with respect to screw (9
and screw @, which is causing the Audio/CTL
Head to incline forward or backward. Use care
in adjusting screws ® and ©, and screw ©
evenly and observe that wrinkles are not
produced at the take-up guide.
Drum output
Drum Output Adjustment
2. If the tape separates from the guide or wrinkling
5-3. INTERCHANGEABILITY
occurs at the take-up guide, adjust by turning screw
ADJUSTMENT
© of the Audio/CTL Head as shown in the figure
below.
1. Observe the FM envelope output waveform at the
oscilloscope and press to adjust the CHANNEL V / A
buttons in both positive(+) and negative(-) directions.
Take-up
Guide Roller
Maximum
C
Tight Screw
Take-up Guide
B
р
Minimum FM Output (Incorrect Examples)
3. As shown in the figure below, adjust screws @ and
© and nut ® to align the Audio/CTL Head height with
2. If there are waveforms as shown in A or B in the
the tape.
above figure, adjust the supply guide roller height so
that the waveform appears as shown by E, F, or G
Audio Head
in the figure below.
At this time, if the waveform
fluctuates, adjust to the point of minimum fluctuation.
E
Taper
Approx.
SS
:
Е
Parallel
0.06mm
Reference line
Take-up Guide Pole
|
CTL Head
|
G
Taper
Audio/CTL Head Height
Minimum FM Output (Correct Examples)
MA-8
Advertisement
Table of Contents
