Samsung SAM25405C/XAA, Service Manual

Page: 17 / 72

Alignment and Adjustments
Samsung Electronics 4-3
5. Turn the SCREEN VR until “MRCR G B” and “MRWDG” are green and those value are about 100.
(The incorrect SCREEN Voltage may result that “MRCR G B” and “MRWDG” should be red)
When you do not have Toshiba Pattern, follow this method.
1. Set the TV on the condition that AV mode no signal(black)
2. Enter the “Menu” and set the mode to blue screen off.
3. Enter the “Service Mode”.
4. Select “ G2-Adjust”.
5. Set the values as below.
IBRM = 200
WDRV = 35
CDL
= 200
COLR G B = 120 120 120
6. Turn the SCREEN VR until the value of “ MRCR G B” is about 120. Do not mind that
the “OSD” Color is red.
■
After completing G2-Adjust, follow this procedure.
①
Enter the “Video Adjust 1”.
➁
Choose any item in menu. (ex. Select “Red Cutoff”)
➂
Change the value of item you select, and recover the value.
For example, when the value of “Red Cutoff” is 127, change the value to 128 and restore
the value to 127.
If you do not follow this procedure, the picture may be abnormal.
For example, when the TV set is on, the picture becames brighter gradually.
Note 1.