JVC TK-C400E, Service Manual

Page: 18 / 52

2-10
Item Mode Adjustment procedure
Measuring
instrument &
Input signals
No.
Measuring point (
*
)
Adjustment parts (
-
)
Adjustment level (
+
)
3 White
balance
adjustment(3)
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
1) Select the “NEXT” button to display “White
balance (3)” on the title bar.
2) Adjust the lens iris to obtain the specified level
of white chip at the measuring point.
3) Press the “
䊱
” or “
䊲
” button of the
PRESETMWR, then AWBCNT and INTGR
data are appeared in the Show Controls box.
4) Press the “
䊱
” or “
䊲
” button of the
PRESETMWR to be same data of AWB CNT’s
data. (last 2 digit)
5) Press the “
䊱
” or “
䊲
” button of the
PRESETMWB to be same data of INTGR’s
data. (last 2 digit).
1) Select the “NEXT” button to display “White
balance (4)” on the title bar.
2) Adjust the lens iris to obtain the specified
level of white chip at the measuring point.
3) Press the “
䊱
” or “
䊲
” button of the
RLOGAIN, then AWBCNT data are appeared
in the “Show Controls” box.
4) Press the “
䊱
” or “
䊲
” button of the
RLOGAIN to be same data of AWBCNT’s
data. (last 2 digit)
4 White
balance
adjustment (4)
*
VIDEO OUT
(75 ohm Termination)
-
LENS IRIS
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
Gray scale chart
filter
(No. 80D+82A)
Oscilloscope
(H-rate, 10:1) or
W.F.M
U-ver.
E-ver.
0.714 Vp-p (100IRE)
0.7 Vp-p (100%)
+
Gray scale chart
filter
(No. 81A+81D)