Symptom of Misadjustment:
If the control signal is not properly picked up, Servo Operation
cannot be achieved. A Blue screen will be seen in Playback.
This confirmation is required when the Audio Control Head is replaced.
1. Play back a T120 cassette tape and check that the lower edge of
the tape runs approximately 0.25 mm above the lower edge of the
Audio Control Head.
2. If necessary, adjust Black Screws (A) and (B) clockwise to lower
the tape or counterclockwise to raise.
Fig. M6
7.2.2.3.4. AUDIO CONTROL HEAD AZIMUTH ADJUSTMENT
Purpose:
To adjust the position and height of the Audio Control Head so
that it meets the tape tracks properly.
Symptom of Misadjustment:
If the position of the Audio Control Head is not properly adjusted,
the Audio S/N Ratio is poor.
1. Connect the oscilloscope to the TP4002 on the TV/VCR Main C.B.A.
2. Play back the 6 kHz Monaural Audio portion of the alignment tape.
3. Adjust Black Screw (C) on the Audio Control Head base so that the
output level is at maximum.
Fig. M7
57
Summary of Contents for OmniVision PV-Q1311
Page 9: ...Fig 1 4 Fig 1 5 9...
Page 23: ...5 2 IC TRANSISTOR AND CHIP PART INFORMATION 23...
Page 27: ...Fig D4 Fig D5 27...
Page 31: ...6 2 2 Inner Parts Location Fig J1 1 31...
Page 32: ...6 2 3 EJECT Position Confirmation Fig J1 2 32...
Page 33: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 33...
Page 84: ...84...
Page 88: ...11 2 MECHANISM BOTTOM SECTION 88...
Page 89: ...11 3 CASSETTE UP COMPARTMENT SECTION 89...
Page 90: ...11 4 CHASSIS FRAME SECTION 1 90...
Page 91: ...11 5 CHASSIS FRAME SECTION 2 91...
Page 93: ...Model PV C2011 PV C2021 PV C2031W VV 2001 PV C2061 93...
Page 111: ...R4591 ERDS2TJ681T CARBON 1 4W 680 111...
Page 113: ...R6009 ERJ6GEYJ102V MGF CHIP 1 10W 1K 113...
Page 135: ...R6032 ERJ6GEYJ102V MGF CHIP 1 10W 1K 135...