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a. ACE HEAD HEIGHT ADJUSTMENT
1) Run the alignment tape (Color bar) in the playback
mode.
2) Observe surface of the audio head using a dental
mirror.
3) Turn screw (C) clockwise or counterclockwise until
the gap of lower tape edge and the lower edge of
the control head is about 0.25mm.
(Refer to Fig. 5-6 and 5-7)
SCREW (A)
TLIT ADJUST
X-POSITION
ADJUSTING SLIT
SCREW (B)
AZIMUTH ADJUST
Fig. 5-6 Location of ACE Head Adjustment Screw
AUDIO HEAD
VIDEO HEAD
CONTROL HEAD
Fig. 5-7 ACE Head Height Adjustment
Toshiba
b. ACE HEAD TILT ADJUSTMENT
1) Playback a blank tape and observe the position of
2) Confirm that there is no curl or wrinkle at the
3) If a curl or wrinkle of the tape occurrs, slightly
4) Reconfirm the ACE head height.
SCREW (C)
HEIGHT ADJUST
SCREW (D)
X-POSITION
LOCKING
c. AUDIO AZIMUTH ADJUSTMENT
1) Load alignment tape (Mono scope) and playback
2) Connect channel-1 scope probe to audio output
3) Adjust screw (B) to achieve maximum audio level.
0 ~ 0 .25 mm
d. ACE HEAD POSITION (X-POINT) ADJUSTMENT
1) Playback the alignment tape (Color bar).
2) Intermittently short-circuit the two test points on
3) Press the "5" button of remote control then adjust-
4) Connect the CH-1 probe to TP301 (Envelope) the
5) Insert the (-) driver into the X-Point adjustment
6) Turn the Power off.
the tape at the lower flange of tape guide.
lower flange of tape guide as shown in Fig. 5-8 (B).
turn the screw (A) tilt adjust on the ACE head ass'y.
(A)
WRINKLE
(BAD)
Fig. 5-8 Tape Guide Check
the 7KHz signal.
test point (TP302).
(See Fig. 5-6)
Main PCB to set the adjustment mode.
(See Fig. 5-2)
ment is operated automatically. (See Fig. 5-1)
CH-2 probe to TP602 (H'D switching pulse) and
then trigger to CH-1.
hole and adjust it so that envelope wavwform is
maximum.
Alignment and Adjustment
(B)
(GOOD)
5-5
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