Tatung VM9G5DA S995T Service Manual page 9

G. The setting data of the CONTRAST, BRIGHTNESS, PIN-BALANCE, PARALLELOGRAM, ROTATION,
COLOR TEMPERATURE are common mode saved in the memory. Don't needed adjust it individual at every
timing Mode and save in the memory.
3. White Balance, Luminance adjustment:
A. Bias (Low Luminance) adjustment:
(a) Set mode 7 1024 x 768 Fh: 60KHz full white pattern.
(b) To make the adjustment condition is under the Factory preset window.
Same as step 2-C.
(c) Warm up more than 30 minutes.
(d) Brightness
Y=1.0FL ± 0.2FL
(e) Set G-Bias
temperature x= 283 ± 10, y= 297 ±10.
(f) Readjust screen VR to y=1.0FL ± 0.2FL
B. Gain (High light) adjustment:
(a) Set mode 7 1024 x 768 Fh: 60KHz full white pattern.
(b) Brightness set to raster just cutoff and set the contrast to max.
(c) Adjust G-Gain
C. Recheck item A&B to make sure both of them in spec. Finally select OSD function to the 9300°K function, then
press the shuttle knob. To make the setting data saved in the memory.
D. The adjustment of 6500°K white Balance, May follow step item B , with the x=313±10, y=329±10.
E. Full white luminance:
(a) Set mode 7 1024 x 768 Fh: 60K full white pattern.
(b) Image Size : H:346±4mm V:260±4mm.
(c) Contrast set to max, Brightness set to cut off.
(d) Adjust VR401 to the luminance at 28 FL ± 1FL.
4. Focus Adjustment:
A. Set mode 7 1024 x 768 Fh: 60KHz with character full page.
B. Adjust brightness to center and contrast to max.
C. Then adjust focus VR1 to a fine vertical line.
D. Adjust focus VR2 to a fine horizontal line.
E. Repeat step C & D.to make the display focus performance very well.
set to maximum. Contrast
to make the setting value about 56, then adjust the R. B Bias individual to the color
, B-Gain , R-Gain
set to min. raster pattern, then adjust FBT screen VR to make
, to make color temperature x=283±10, y=297±10.