Mechanism Adjustment; Guide Roller Loose Play Adjustment; Micro Switch Position Adjustment - Akai GX-747 dbx Service Manual

VII. MECHANISM ADJUSTMENT
(a)
TAPE
MOTOR
ARM
0.1 to 0.3mm MICRO SWITCH (B)
MICRO SWITCH (B)
(b)
0
0
MICRO SWITCH (A)
Fig. 7-2
TAPE GUIDE
MICRO
SWITCH(A)
(c)
Fig. 7-1 Roller Block
CAPSTAN MOTOR
SCM-200
I
f--------,
~ - - - - + - 1 - - - I
I
I
--, ---1
I I
I I
I
I
-:i<· 0.1 to 0.2mm
I I
I I :i(
FIXATION NUT
1..,._:
I I
:---------9
I I
~
i=====~=-:.-:.-,j
I
I I
- j - · -
- - 1
Fig. 7-3
1. GUIDE ROLLER LOOSE PLAY
ADJUSTMENT (Refer to Fig. 7-1)
Adjust the stopper B (roller pulley on the right)
screw ( c) so that the loose play gap is approximately
0.1 mm when the guide roller is moved as indicated
by arrow mark
in
Fig. 7-1.
2. MICRO SWITCH POSITION ADJUSTMENT
(Refer to
Fig. 7-1)
1) Micro Switch (A) Position Adjustment
Adjust the screw (a) so that the gap between the
arm cam and the micro switch is approximately
0.3 to 0.5 mm. Check that the micro switc!J. works
and that the arm lock smoothly disengages.
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