JVC TK-C720TPE, Руководство по обслуживанию

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2-11
6 White
balance
adjustment (2) – (no chart)
filter
(No.80B+80B)
Oscilloscope
(H-rate, 10:1) or
W.F.M.
*
MONITOR OUT
(75 ohm Termination)
-
LENS IRIS
1) Click the “NEXT” button.
2) Adjust the lens iris to obtain the specified level
of center of carrier at the measuring point.
3) Click the “
䊱
” or “
䊲
” button of the PRERBL,
then AWBCNT and INTGR data are appeared
in the “Show Controls” box.
4) Using the keyboard input the same value as
for the value of the last 2 digits of the
“AWBCNT” into the PRERBL box, press the
“ENTER” button.
5) Using the keyboard input the same value as
for the third and fourth digits from the right of
the “AWBCNT” into the PRERBM box, press
the “ENTER” button.
6) Using the keyboard input the same value as
for the last 2 digits of “INTGR” into the
PRERBGL box, press the “ENTER” button.
7) Using the keyboard input the same values as
for the third and fourth digits from the right of
the “INTGR”into the PRERBGM box, press
the “ENTER” button.
Note:
When the AWBCNT and INTGR data are dis-
played in the show controls box by clicking
the
䊲
or
䊱
button of the PRERBL, the last
2 digits of data vary every time at the button
is pressed, but this is not a malfunction.
Please input the displayed values directly.
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (
*
)
Adjustment parts (
-
)
Adjustment level (
+
)
U-ver.
E-ver.
0.357 Vp-p (50IRE)
0.35 Vp-p (50%)
+
Center of carrier
Auto-white balance (5)
Oscilloscope or Waveform monitor
PRERBL PRERBM PRERBGL PRERBGM
&H71 &HA7 &H0A &HE5
AWBCO = 2
AWBCNT = &HE571
INTGR = &H220AA7