2-4. SETUP FOR ADJUSTMENT
For adjustment of the VTR section, the video signal from
the pattern generator is used as the adjustment signal.
Therefore, it is necessary that this video output signal is
within the specified level.
Confirm that the amplitude of the sync signal of the video
signal is about 0,3 Vp-p, that the amplitude of the video
section is about 0.7 Vp-p, that the amplitude of the burst
sianal is about 0.3 VD-D and is flat, and that the level ratio of
th~ burst signal and the “red” signal is 0.30:0.66.
White (100 %)
J
Red
T
Approx.
0.7 Vp-p
Approx.
t
0,3 Vp-p
Horizontal sync component
Burst component
(should be flat)
Approx. 0.3 Vp-p
[ADJ mode]
ADJ mode can be entered by short-circuiting pin @ [GND]
and pin @ [TEST] of J1 005.
However, when in CAMERA mode (POWER switch: “ON” ;
Slide the POWER/CHARGE switch upward, then CAMERA
indicator lights/Each time the Power mode button is pressed
during this time, the CAMERA indicator and PLAYER
indicator will light alternately and the mode will switch
between CAMERA mode and PLAY mode.), mode shifting
cannot be made as shown below.
[ADJ function]
● Stops the reel rotation checking operation.
.
Stops the discrimination of SP/LP mode in playback
mode.
F-S7SSW-:+FFSW
............
PLAY Sw SE Sw
..**Shift more
m=m=~
STOP SW
PLA’fskv y-s~g-w-!+ REwsw
. . . . . . . . .. ..
....retuf.n
S/S: REC start/stop button
Note: At the “+”,double-press
[::; portion first to shift a mode.
2-5. ADJUSTMENT ITEM AND ORDER
[Servo/System Control Circuit]
1.
Video center adjustment ..........""" "".".....""" "".""".""l7
[Video Circuit]
1.
2.
3.
4.
5.
6.
7.
Flying erase check
..........................................17
Sync AGC adjustment
....................................17
Comb filter phase adjustment ““””” ””.”””””18
Comb filter level adjustment ““””” ””””” ””””” ””””. ”18
PBlineout Ylevel adjustment ..............................18
Y FM carrier frequency adjustment
........................18
Y FM deviation adjustment
...................................19
[Audio Circuit]
(For VM-EX400P)
1. fo adjustment ....................””. ””””” ”””””””. ”19
(For VM-EX450P/480P/550P/560P)
1. Deviation adjustment
““”””””””””””””””””””””””””DO
2. PB separation adjustment
................. ......... .......20
3. REC separation adjustment
................................20
~iewflnder Circuit]
(For VM-EX400P/450P/480P)
1. Horizontal oscillation frequency adjustment ............21
2. Viewfinder provisional adjustment .......”.. ””””” ””””21
3. Centering adjustment ””””” ””””” ””””” ”””””””””””21
4. Horizontal size & viewfinder slant adjustment ...........21
5. Vertical size adjustment ......
...............................22
6. Brightness adjustment
.........................................22
7. Focus adjustment
.............................................22
(For VM-EX550P/560P)
1.
2.
3.
4.
5.
6.
7.
8.
9.
LCDcommon voltage adjustment ......”. ””””” ”””””23
PLL lock adjustment ....
....................................23
Black level limit adjustment
..............................23
Brightness adjustment ....””” ””. ”””””” ””””” ””””” ””””””23
Contrast adjustment
........................................24
Gamma adjustment
........................................24
Color gain adjustment
.....................................24
Hue Adjustment
...........................................24
White balance adjustment ““””””””””.”””””””.”””24
[PW2 Circuit] (For VM-EX550P/560P)
—
1. DC-DC converter frequency adjustment ................25
2. 6.0 V voltage adjustment
....................................25
[Power Circuit]
1. DC-DC converter frequency adjustment .................25
2. Video/audio power supply adjustment ..................25
Note: SHIFT TRACK mode is used for Mechanism tracking
adjustment.
–16–
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