SDM-S205F, SDM-S205K - Sony Monitor Service Manual (repair manual). Page 14

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ADJUSTMENT
 
1. Procedures of how to go to service mode. 
1) Enter the service mode of this unit by turning on the 
power while pressing and holding the "
↓" key and "↑" 
simultaneously. 
2) Press "MENU" key----MAINTAIN. 
3) Press "OK" key to enter the service menu. 
4) Select the desired function. 
5) Press the "MENU" key to exit OSD. 
6) Turn off the power and then turn on it again.  The 
monitor then enters the normal mode. To enter the 
service again, repeat the procedure described above. 
Note 
W/B readjustment is required after the panel, board and 
microcomputer are replaced. However, be sure to perform 
aging for more than 30 minutes for RGB reset before W/B 
adjustment. 
 
2. Setup 
1) Prepare timing and pattern data for a signal generator 
according to the Sony timing specifications. 
2) Connect a monitor video cable to the signal generator. 
3) Put Color Analyzer (ex. CA-110) 50cm away from the 
monitor, specify it vertically in the center of the display, 
and adjust the focus to the optimum level using an 
eyepiece. 
4) Put the monitor and Color Analyzer (ex. CA-110) in a 
light-shielded room. 
5) Set up [SERVICE MODE] of the monitor. 
 
3. Operation 
Data is manually set to improve the productivity. The 
brightness, contrast, and backlight are set to 50, 70 and 
100 respectively. After that, the default data of the color 
temperature to be adjusted is set. 
 
4. Warm up time 
Warm up for 30 minutes before performing any 
adjustment. 
 
5. Adjustment for White Balance 
a. Display SMPTE at SXGA / 60Hz (Input level 
0.73mV). 
b. Set up [SERVICE MODE]. 
c. Click "CLEAR EEPROM" and AC Power off. 
d. Set up [SERVICE MODE] of the monitor again. 
e. Click "WHITE BALANCE" and then select "AUTO". 
f. Prepare timing and full black pattern. 
g. Click "OFFSET CALIBRATION". 
h. After offset calibration is completed prepare full white 
pattern. 
i. Click "GAIN CALIBRATION". 
 
6. 9300K color adjustment 
a. Select "9300K" in "COLOR TEMP" and enter. 
b. Use a 35% (89Gray) IRE white video field in the 
primary mode. 
c. Adjust "CONTRAST" to secure the color temperature. 
d. Press "MENU" key to exit adjust mode. 
 
7. 6500K color adjustment 
a. Select "6500K" in "COLOR TEMP" and enter. 
b. Repeat the adjustment procedure as steps b to d at 
9300K.
 
 
                                                          SDM-S205F, 205K (E)
 
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