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. M6
4. Confirm the height of the Audio Control Head is proper. If not,
readjust Black Screws (A) and (B).
7.2.2.2.5. AUDIO CONTROL HEAD HORIZONTAL POSITION ADJUSTMENT
Purpose:
To adjust the Horizontal Position of the Audio Control Head.
Symptom of Misadjustment:
If the Horizontal Position of the Audio Control Head is not properly
adjusted, a maximum envelope cannot be obtained at the Neutral
Position of the Tracking Control Circuit.
1. Place a jumper between TP6003 and +5 V(TP6009) on the TV/VCR
Main C.B.A. to defeat Auto Tracking.
2. Eject the tape and insert it again to access the Neutral Tracking
position.
3. Play back the alignment tape.
4. Connect the oscilloscope to TP3002 on the Video Signal Process
Section of the TV/VCR Main C.B.A. Use TP6205 as a trigger.
5. Loosen the Black Screw (D) and tighten it slightly. Set the H-
Position Adjustment Driver into the Hole (A). Then slowly turn the
fixture either clockwise or counterclockwise so that the envelope
50
Содержание PVQ-1312W
Страница 22: ...6 1 2 Disassembly Method Fig D2 22 ...
Страница 23: ...Fig D3 23 ...
Страница 24: ...6 1 2 1 Notes in chart 1 Removal of VCR Unit Fig D4 24 ...
Страница 28: ...6 2 2 Inner Parts Location Fig J1 1 28 ...
Страница 29: ...6 2 3 EJECT Position Confirmation Fig J1 2 29 ...
Страница 30: ...6 2 4 Full Erase Head and Cylinder Unit Fig J2 30 ...
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Страница 73: ...11 2 MECHANISM BOTTOM SECTION 73 ...
Страница 74: ...11 3 CASSETTE UP COMPARTMENT SECTION 74 ...
Страница 75: ...11 4 CHASSIS FRAME SECTION 1 75 ...
Страница 76: ...11 5 CHASSIS FRAME SECTION 2 76 ...
Страница 77: ...11 6 PACKING PARTS AND ACCESSORIES SECTION 77 ...
Страница 84: ...121 LSPG1279 PACKING CASE PAPER F 6 84 ...
Страница 97: ...R5317 ERDS2TJ101 CARBON 1 4W 100 97 ...
Страница 99: ...R6045 ERJ6GEYJ102V MGF CHIP 1 10W 1K 99 ...
Страница 118: ...R5401 ERJ6GEYJ561V MGF CHIP 1 10W 560 118 ...
Страница 120: ...R6049 ERJ6GEY0R00V MGF CHIP 1 10W 0 120 ...