Component Signal White Balance - JVC DT-V1710CG Service Manual

COMPONENT SIGNAL WHITE BALANCE (HIGH: D9300) ADJUSTMENTS
Measuring Instruments
Card (Slot)
Test Points
Adjustment Points
Notes:
•
Perform the following adjustments after completing the Low-Light White Balance (Reference Value) Adjustment.
•
Set the COLOR TEMP./BAL. data in the Setup Menu to "00".
•
The values adjusted with WW become the reference values for the following adjustment. When this data is changed,
it is required to re-adjust the white balance data of all of the adjustment signals (Component, NTSC and PAL).
When re-adjusting the 1080/60i signal, use the WI.
(1) Apply the 1080/60i component 10-step gray scale signal to INPUT A.
(2) Set "COLOR TEMP." of COLOR TEMP./BAL. in the Setup Menu to HIGH.
(3) Set the PHASE, CHROMA, BRIGHT and CONTRAST potentiometers on the front panel to the center click positions.
(4) Adjust WW01 and WW03 in the Service Menu using the color temperature meter so that the color temperature is set as shown
below.
(Do not touch WW02.)
Color temperature : HIGH (D9300).
(5) Ensure that the white balance tracking is correct from the gray scale steps with lower color temperatures to those with higher
color temperatures. If the white balance tracking is deviated in darker steps, adjust WW04 to WW06 to correct it.
(Do not set the values of WW04 to WW06 no more than "50".)
(6) Vary the adjustment signal and adjustment data, and re-perform adjustments in steps 1 to 5 above (see Table 18).
Adjustment Signal
COMMON
1080/60i
1080/50i
1080/24psF
720/60p
720/50p
480/60i
(Common to 576/50i)
480/60p
(Common to 576/50p)
1-66 (No. 52152)
Signal generator (10-step gray scale signal)
Color temperature meter
Component/RGB Input Card (Slot 1)
W*01 (Drive (R)), W*03 (Drive (B)), W*04 (Cut Off (R)),
W*05 (Cut Off (G)), W*06 (Cut Off (B)) [Service Menu]
x = 0.283, y = 0.297 (Reference value)
Function
Drive
Cut off
Drive
Cut off
Drive
Cut off
Drive
Cut off
Drive
Cut off
Drive
Cut off
Drive
Cut off
Drive
Cut off
Adjustment Data
R
WW01
WW04 WW05
WI01
WI04 WI05
WM01
WM04 WM05
WO01
WO04 WO05
WQ01
WQ04 WQ05
WS01
WS04 WS05
WE01
WE04 WE05
WG01
WG04 WG05
Table 18
G B
– WW03
WW06
– WI03
WI06
– WM03
WM06
– WO03
WO06
– WQ03
WQ06
– WS03
WS06
– WE03
WE06
– WG03
WG06