JVC TK-C720TPU Service Manual page 17

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Measuring
No.
Item
instrument &
Input signals
6
White
– (no chart)
balance
adjustment (2)
filter
(No.80B+80B)
Oscilloscope
(H-rate, 10:1) or
W.F.M.
Auto-white balance (5)
Oscilloscope or Waveform monitor
PRERBL
&H71
Mode
AWBCO = 2
AWBCNT = &HE571
INTGR = &H220AA7
PRERBM
PRERBGL
&HE5
&HA7
Measuring point (*)
Adjustment parts (-)
Adjustment level (+)
* MONITOR OUT
1) Click the "NEXT" button.
(75 ohm Termination)
2) Adjust the lens iris to obtain the specified level
- LENS IRIS
3) Click the " " or " " button of the PRERBL,
4) Using the keyboard input the same value as
+ Center of carrier
U-ver.
0.357 Vp-p (50IRE)
E-ver.
0.35 Vp-p (50%)
5) Using the keyboard input the same value as
6) Using the keyboard input the same value as
7) Using the keyboard input the same values as
PRERBGM
&H0A
Adjustment procedure
of center of carrier at the measuring point.
then AWBCNT and INTGR data are appeared
in the "Show Controls" box.
for the value of the last 2 digits of the
"AWBCNT" into the PRERBL box, press the
"ENTER" button.
for the third and fourth digits from the right of
the "AWBCNT" into the PRERBM box, press
the "ENTER" button.
for the last 2 digits of "INTGR" into the
PRERBGL box, press the "ENTER" button.
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
or
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.
2-11

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