Table of Contents
Advertisement
Match here
Fig. 4-4-42
Fig. 4-4-44
Fig. 4-4-43
(w) R and B signal tracking-3 adjustment
Process Board
Test points:
Fig. 4-4-45
Adjusts:
Fig. 4-4-46
18
•
R. pi-at the above step until the Yj_ and R signal
wavefol ms match
•
Adjust R. TRACKING-2
R205 so that the
R
signal
matches the Y[_ signal in the 8th ~ 9th step of gray
scale
waveform. (Fig. 4-4-43)
• Adjust R. PED
R222 so that the pedestal level of
R signal matches that of Y
l
signal. (Fig. 4-4-42)
TP213 (R)
TP212 (B)
T 214(Y L )
R203 (R.
TRACKING-3)
R202 (B.
TRACKING-3)
R219 (TRACKING-3
SET)
• Aim the camera at the logarithmic gray scale chart.
• Connect the oscilloscope to T 212 (B> and T 214
(Y|_).
• Trigger the oscilloscope at H.rate. (Use TP105 on
deflection board)
• Compare the B signal and Yj_ signal on the oscil
loscope, and note the step at which the B signal no
longer tracks with the Y|_ signal. (Fig. 4-4-44)
In the example shown in Fig 4.4.44, 6th step is the
point of divergence.
•
Turn back TRACKING-3 SET
R219 slowly and
stop it at the point where the noted step of B signal
lust starts to be extended. (Fig.
4.4.45)
^Adjust
R202 so
that the noted step
of B signal just starts
to be extended.
Note the step at
which the B signal
no longer tracks
with the Y|_ signal.
•
Set the zoom lens to the automatic ins control (ACI)
mode by turning the iris setting screw in the zoom
lens counterclockwise to unlock it after setting the
standby power switch on the rear of camera to the
STANDBY position.
•
Set the standby power switch to the ON position
•
Confirm that B TRACKING-3
R202, R. TRACK
ING ' S
R203 and TRACKING-3 SET
R219 are
turned fully clockwise.
T
Match here
_L
Match here
I
•
Adjust B TRACKING-3
R202 so that the B signal
matches the Y[_ signal in the 8th ~ 9th'step of gray
scale waveform. (Fig.
4-4-46)
Advertisement
Table of Contents
