7.2.2.5. A/C HEAD HORIZONTAL
POSITION ADJUSTMENT
Purpose:
To adjust the Horizontal Position of the
A/C Head.
Symptom of
Misadjustment:
If the Horizontal Position of the A/C Head
is not properly adjusted, maximum
envelope can not be obtained at the
Neutral Position of the Tracking Control
Circuit.
1. Put the unit into the service mode "I. Tracking Fix" to defeat
Auto
Tracking.
Refer
to
"SERVICE
MODE
SPECIFICATION" in "SERVICE NOTES."
2. Connect the oscilloscope to Pin 30 (Envelope signal) on the
TP Adjustment P.C.B. Use Pin 33 (Head Switch signal) as
a trigger.
3. Play back the Alignment Tape (VFMS0004H6C).
4. Set the Screwdriver into the Hole (A) as shown.
Fig. M6-1
5. Slowly move the A/C Head Unit to the direction "A" or "B" as
shown so that the envelope is at maximum.
Fig. M6-2
6. To find the center of the maximum period of the envelope,
move the A/C Head Unit to confirm the limits on either side
of the maximum period.
Note:
It will be possible to confirm step 6) after performing the
following steps.
a. Exit the "I. Tracking Fix" mode, then skip the "J. PG
Shifter" mode to enter other modes (except these 2). Or,
close the service mode.
b. Press the Tracking Control Up Button on the camcorder
several times (count the number of times pressed) until
the maximum envelope is reduced to 1/2.
c.
Press the Tracking Control Down Button on the
camcorder several times (count the number of times
pressed) until the maximum envelope is reduced to 1/2.
d. If the number of pressing is not the same, readjust
A/C Head horizontal position.
7.2.2.6. CONFIRMATION OF ENVELOPE
OUTPUT
Purpose:
To achieve a satisfactory picture and
secure precise tracking.
Symptom of
Misadjustment:
If the envelope is output poorly, much
noise will appear in the picture. Then the
tracking will lose precision and the
playback picture will be distorted by any
slight variation of the tracking control
circuit.
1. Connect the oscilloscope to Pin 30 (Envelope signal) on the
TP Adjustment P.C.B. Use Pin 33 (Head Switch signal) as
a trigger.
2. Play back the Alignment Tape (VFMS0004H6C).
3. Confirm that the envelope waveform is as flat as possible
(V1/V(max)> 0.7).
If adjustment is required, adjust S Post and/or T Post with
"—" Screwdriver. Refer to "Envelope Output Adjustment."
Fig. M7
66
PV-D300 / VM-D100 / PV-L550 / PV-L600 / PV-L650 / VM-L450
Содержание Palmcorder Palmsight PV-L650
Страница 3: ...1 1 1 MECHANICAL REPLACEMENT PARTS LIST 1 1 2 ELECTRICAL REPLACEMENT PARTS LIST 3 ...
Страница 13: ...Fig 1 1 11 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 14: ...5 1 2 INTERCONNECTION OF EXTENSION CABLES Fig 1 2 12 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 17: ...15 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 18: ...16 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 19: ...17 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 20: ...5 1 5 DESCRIPTION OF EMERGENCY INDICATIONS 18 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 27: ...5 2 IC TRANSISTOR AND CHIP PART INFORMATION 25 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 41: ...6 1 9 3 Battery Catcher Unit Fig D13 3 39 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 43: ...6 2 MECHANISM SECTION 6 2 1 Disassembly Method 41 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 47: ...6 2 5 Cylinder Ass y Fig DM4 1 1 Fig DM4 1 2 45 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 49: ...6 2 7 P C B Angle Fig DM5 47 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 50: ...6 2 8 Mechanism F P C Unit Fig DM6 1 Fig DM6 2 48 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 51: ...6 2 9 Tension Unit Reel Table Unit Fig DM7 1 Fig DM7 2 49 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 53: ...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 ...
Страница 54: ...6 2 13 Capstan Belt Fig DM11 6 2 14 Capstan Unit Fig DM12 52 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 60: ...Fig DM21 2 Fig DM21 3 59 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 62: ...7 ADJUSTMENT PROCEDURES 7 1 SERVICE FIXTURES TOOLS 61 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 63: ...62 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 68: ...7 3 ELECTRICAL ADJUSTMENT 7 3 1 INTRODUCTION 67 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 69: ...7 3 2 INITIAL GUIDELINE 68 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 72: ...71 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 76: ...7 4 TEST POINTS AND CONTROL LOCATION 75 PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 ...
Страница 124: ...11 EXPLODED VIEWS 11 1 VCR MECHANISM SECTION PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 125 ...
Страница 125: ...11 2 CAMERA AND FRAME SECTION PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 126 ...
Страница 126: ...11 3 FRAME SECTION A B PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 127 ...
Страница 127: ...11 4 FRAME AND LCD SECTION C D E F PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 128 ...
Страница 128: ...11 5 COLOR EVF SECTION A PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 129 ...
Страница 129: ...11 6 EVF SECTION B C D E F PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 130 ...
Страница 130: ...11 7 PACKING PARTS AND ACCESSORIES SECTION A B PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 131 ...
Страница 131: ...11 8 PACKING PARTS AND ACCESSORIES SECTION C D E F PV D300 VM D100 PV L550 PV L600 PV L650 VM L450 132 ...