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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
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Содержание QUASAR PV-C2030W
Страница 24: ...6 S 1 6 Screws S 1 6 L 1 6 Locking Tabs L 1 P 1 Spring P 1 E Refer to Notes in chart Fig D2 Fig D3 Fig D4 24 ...
Страница 25: ...Fig D5 25 ...
Страница 29: ...6 2 2 Inner Parts Location Fig J1 1 29 ...
Страница 30: ...6 2 3 EJECT Position Confirmation Fig J1 2 30 ...
Страница 31: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 31 ...
Страница 33: ...6 2 5 Capstan Belt Support Angle Intermediate Gear B and Main Cam Gear Fig J3 1 6 2 5 1 Reassembly Notes 33 ...
Страница 44: ...6 3 CASSETTE UP ASS Y SECTION 6 3 1 Top Plate Wiper Arm Unit and Holder Unit Fig K1 1 44 ...
Страница 82: ...82 ...
Страница 86: ...11 2 MECHANISM BOTTOM SECTION 86 ...
Страница 87: ...11 3 CASSETTE UP COMPARTMENT SECTION 87 ...
Страница 88: ...11 4 CHASSIS FRAME SECTION 1 A B C D E F G 88 ...
Страница 89: ...11 5 CHASSIS FRAME SECTION 1 H I J K L 89 ...
Страница 90: ...11 6 CHASSIS FRAME SECTION 2 90 ...
Страница 91: ...11 7 PACKING PARTS AND ACCESSORIES SECTION A B C D E F G 91 ...
Страница 92: ...11 8 PACKING PARTS AND ACCESSORIES SECTION H I J K L 92 ...
Страница 113: ...R4021 ERJ6GEYJ473V MGF CHIP 1 10W 47K 113 ...
Страница 115: ...R5515 ERDS2TJ332 3 3K 115 ...
Страница 135: ...R885 ERDS2TJ104 100K 135 ...