7.2.2.3. A/C HEAD HEIGHT ADJUSTMENT
The height of the A/C Head replacement part is preset at the
factory.
Purpose:
To be sure the tape runs properly along
the Control Head.
Symptom of
Misadjustment:
If the control signal is not properly picked
up, Servo Operation can not be achieved.
1. Connect the oscilloscope to Pin 25 (PB Control signal) on
the TP Adjustment P.C.B.
2. Play back the Alignment Tape (VFMW0001C)
3. Confirm that the Sub Control Signal is 500 mV±200 mV. If
not, slightly and equally adjust Screw A, Screw B, and
Screw C on the A/C Head Unit to achieve the sub control
signal level of 500 mV±200 mV.
(Sub Control Signal level will decrease when rotating
screws clockwise, and increase when rotating screws
counterclockwise.)
Fig. M4-1
Fig. M4-2
7.2.2.4. A/C HEAD AZIMUTH
ADJUSTMENT
Purpose:
To adjust the position and height of the
A/C Head so that it meets the tape tracks
properly.
Symptom of
Misadjustment:
If the position of the A/C Head is not
properly adjusted, the Audio S/N Ratio
will be poor.
1. Connect the Audio/Video Cable on the camcorder.
2. Connect the oscilloscope to audio output jack.
3. Playback the Alignment Tape (VFMS0004H6C).
4. Adjust Screw C (Azimuth) on the A/C Head Unit so that the
output level is at maximum.
Fig. M5
5. Confirm and readjust the A/C Head height.
6. Confirm and readjust Screw C (Azimuth) on the A/C head
so that the output audio becomes is maximum.
65
PV-D300 / VM-D100 / PV-L550 / PV-L600 / PV-L650 / VM-L450
Summary of Contents for Quasar PV-D300
Page 9: ...Fig 1 1 11 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 13: ...15 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 14: ...16 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 15: ...17 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 16: ...5 1 5 DESCRIPTION OF EMERGENCY INDICATIONS 18 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 23: ...5 2 IC TRANSISTOR AND CHIP PART INFORMATION 25 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 37: ...6 1 9 3 Battery Catcher Unit Fig D13 3 39 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 45: ...6 2 7 P C B Angle Fig DM5 47 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 49: ...Fig DM9 2 6 2 12 A C Head Unit Fig DM10 51 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 56: ...Fig DM21 2 Fig DM21 3 59 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 59: ...62 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 65: ...7 3 2 INITIAL GUIDELINE 68 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 68: ...71 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 72: ...7 4 TEST POINTS AND CONTROL LOCATION 75 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450...
Page 121: ...11 2 CAMERA AND FRAME SECTION PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 126...
Page 122: ...11 3 FRAME SECTION A B PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 127...
Page 123: ...11 4 FRAME AND LCD SECTION C D E F PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 128...
Page 124: ...11 5 COLOR EVF SECTION A PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 129...
Page 125: ...11 6 EVF SECTION B C D E F PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 130...