SDM-S71R - Sony Monitor Service Manual (repair manual). Page 9

Read Sony SDM-S71R Service Manual online

SDM-S71R(E)
2-3
2-3. WHITE BALANCE ADJUSTMENT
<Equipments required>
Signal generator: VG819 or equivalent (Be sure to confirm the output level of the analog RGB out 75 ohm terminated.)
Color analyzer: MINOLTA CS1000 or equivalent
<Preparation>
Confirm the center of screen by feeding the cross pattern, and set the color analyzer at the 50cm distance from the center of the screen.
Set the monitor to Aging mode for 30 minutes or more.
<Setting>
On the service mode, set Bright=50, Contrast=70 and Backlight=100.
Be sure to set the menu display position off from the mesuring point.
Feed the attached specification timing signal to the monitor.
<Adjusting>
1. Feed the attached calibration timing all white signal. At this time, check each R, G and B signal output is 0.73Vp-p (75ohm teminated).
Select and execute “WHITE BALANCE” command in service menu.
2. Switch the signal to the 35IRE all gray, select “COLORTEMP 9300K”. (The signal output level should be 0.245V at 75ohm terminated.)
3. Put the SUB CONTRAST R/G/B data in “WHITE BALANCE” caribration down 25 degrees evenly.
4. Adjust the R, G and B data of SUB CONTRAST to the specified value below. (Be sure to adjust by reducing each data.)
9300K x=0.283
±0.003 y=0.298±0.003
5. Continuously feeding the 35IRE all gray signal, select “COLORTEMP 6500K”.
6. Put the SUB CONTRAST R/G/B data in “WHITE BALANCE” caribration down 25 degrees evenly.
7.  Adjust the R, G and B data of SUB CONTRAST to the specified value below. (Be sure to adjust by reducing each data.)
6500K x=0.313
±0.003 y=0.329±0.003
8. Turn power off to release the service mode.
Page of 14
Display

Click on the first or last page to see other SDM-S71R service manuals if exist.