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c. Audio azimuth adjustment
Connect the channel-l scope probe to TP804.
3. Adjust screw (B) vertically to achieve maxrmum audro
level. (See Fig. 4)
d. A/C head position (X-Point) adjustment
1.
Playback the alignment tape
Connect the CH-1 scope probe to TP202.
2.
Connect the CH-2 scope probe to TP201 and
3.
trigger head switchrng pulse.
Set the tracking preset to "6 5 ms" using the tracking
4.
button A/V of remote control. (Refer to Fig. 7 and 8)
Connect the CH-1 scope probe to TP302 and the CH-2
5.
scope probe to TP202 trrgger on CH-1.
Turn the screw (E) counterclockwrse (See Frg. 4).
6
Insert the adjusting driver (+) Into X-positron adjustrng
7
gear Adjust the driver in erther drrectron for maxrmum
envelope waveform.
NOTE : Since the adjusting gear unit may be damaged,
do not adjust by force when adjusting the X-point using the
adjusting driver (+). After turn the X-point adjusting
screw(D) counterclockwise a little, preform the adjustment
After adiustiment is completed, tighten the screw.
H'D SIW PULSE
TP202
CTL PULSE
REMOTE
CONTROL PULSE MOVEMENT
BUTTONS
PUSH
Fig. 8 Control Pulse Adjustment
2. Linearity adjustment (S,%guide rollers
adjustment)
Test Pornt
TP202 (H'D SW Pulse
Test Taoe
(Mono Scooe
1 Playback the alignment tape (Mono Sccope
2. Observe the video envelope signal on an oscilloscope
triggered by the head swrtchrng pulse.
3. Make sure the video envelope waveform (In Its mrnl-
mum or maxrmum output) meets the specrfrcatron
shown In Frg. 10. If It does not, adjust as follows
NOTE
b=Minimum output of the video RF envelope at the
entrance side.
c=Minimum output of the video RF envelope at the
center point.
side.
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