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TM-1650SDU
It is no requirement of the white balance adjustment by using the RGB input and under scan mode. It must be set the composite
VIDEO signal input and normal scan mode when adjust the white balance.
Item
WHITE
BALANCE
(Low light)
adjustment
WHITE
BALANCE
(High light)
6500K
adjustment
28
Test equipment
Signal generator
(Resolution pattern)
Signal generator
(Resolution pattern)
Color Analyzer or
Color temperature
meter
Test points
Adjustment
locations
W01 RCUTOFF
W02G CUTOFF
W03 BCUTOFF
[SERVICE MENU]
SCREENVR
[Lower knob in
HVT]
W04 R DRIVE 6500
W05 B DRIVE 6500
[SERVICE MENU]
No.51702
Adjustment procedure
•
B1 voltage adjustment have been finished.
1. Input the all black signal to VIDEO input (color
off).
2. Select
the
WHITE
BALANCE
block
from
SERVICE MENU.
3. Confirm the initial setting value of W01, W02,
W03 in the WHITE BALAN block are 050.
4. Select the CUTOFF mode.
5. Press "SERV" switch as CONTRAST key, to
display the horizontal line. Carefully adjust the
SCREEN VR to horizontal line appears faintly,
not to shine much.
6. Gradually turn the SCREEN VR from the left to
the right direction to bring one of the red, green
and blue colors faintly visible.
7. Then select the CUTOFF switch (R, G or B) that
color except for appears first, and adjusting 2
colors CUTOFF values by pressing the +key,
and make horizontal line visible white.
8. Readjust the SCREEN VR to appear the
horizontal line faintly, and cancel the horizontal
line to press the "SERV" switch.
•
Low light white balance adjustment have been
correct finished.
1. Input the resolution pattern to VIDEO input.
2. Select the WHITE BALANCE BLOCK from the
SERVICE MENU.
3. Select the 65-0 mode (High light 6500 mode).
4. Apply the sensor of the Color temperature meter
to the CRT surface, part of the 100% white,
adjust the R drive or B drive to setting 6500K
(x=0.313, y=0.329).
5. Exit the SERVICE MENU by pressing the MENU
key.
6. Check the white balance tracking is optimum
when CONTRAST and BRIGHT are up and
down.
•
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