3-15
VPH-G90E/G90U/G90M
3-6. WHITE BALANCE ADJUSTMENT
3-6-1. Preparations
Equipment required
VPH-G90 (Focus, size, registration, and lens focus had
been adjusted completely.)
W/B checker:
Philips PM5639/10
Test signal generator: Tektronix TSG-100 or
equivalent
Note: If test signal generator is
not available, use
internal test signal.
Color temperature setting range
9300
d
K/6500
d
K/5400
d
K/3200
d
K
+
8MPCD
1. Attach a lens-ball of the W/B checker to the lens.
2. Connect a test signal generator.
If there is no test signal generator, use the test signals
generate inside the unit. Press the W/B GAIN key,
select 100 IRE White, then select 10 IRE with W/B
BIAS key.
3. Press the ON/OFF key on the W/B checker.
4. Press the FUNCTION key of the W/B checker, select
“White reference” with
,
keys, then press the
ENTER key.
Buttons on the Display Unit
ENTER
ZOOM
CIE
STORE
RESET
RGB
RECALL
ILLUM
FUNCT
ON/OFF
PM 5639 display unit
White reference
Conversion
Exit
Status
Function
FUNCTION
5. Select “1: fty. Ref” from the “White reference” menu
with
,
keys, then press the ENTER key.
6. Press the RGB key, select “R&B/G” with
,
keys,
then press the ENTER key.
7. Color temperature and bars indications of the W/B
checker are as follows:
1 : fty. Ref
White reference
2 : , ,
3 : , ,
RGB
RGB key function
R&B/G
G&B/R
R&G/B
RGB/mean
RGB/XXXXXUuit
Color
Temp.
9300
6500
5400
3200
50
60
60
90
100
100
100
100
60
40
30
10
0.283
0.313
0.335
0.427
0.297
0.329
0.349
0.408
R
G
B
x
y
GREEN
RED
BLUE
Bars display
100
0
200
Unit: mm
Summary of Contents for VPH-G90E
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Page 337: ...9 1 9 1 VPH G90E G90U G90M SECTION 9 BLOCK DIAGRAMS ...
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