Alignment and Adjustments
Samsung Electronics
4-3
4-6 E
2
PROM (IC902) Replacement
1. When IC902 is replaced, all adjustment data revert to the initial values.
So, all adjustment values when servicing should be readjusted.
2. After IC902 is replaced, connect the AC power supply cord.
3. Turn the power switch ON.
4. In stand-by, warm up the TV for at least 10 seconds.
5. Power on the TV.
4-7 White Balance Adjustment
■
Equipment : Color-Analyzer (CA-100)
■
Input Signal : Pattern signal (Toshiba pattern)
1. Select STANDARD from the menu.
2. Input an 100% White pattern.
3. Enter the “Service Mode”. (Refer to “4-8 Service Mode”)
4. Warm up the TV set at least for 30 minutes.
5. Input a Toshiba pattern signal.
6. Enter the “Video Adjust1”.
- Adjust “Sub Contrast” so that Y (luminance) becomes 65 ft ± 3.
- Use “Red Drive” and “ Blue Drive” to adjust High-Light (x : 265, y : 265)
- Adjust “Sub Bright” so that Y (luminance) becomes 1.2ft ± 0.3.
- Use “Red Cutoff” and “Blue Cutoff” to adjust Low-Light (x : 265, y : 265).
7. Adjust CA-100 so that the final adjustment value can be fixed.
8. Use the Channel Up/Down (
▲
/
▼
) buttons to move the cursor on the adjustment modes.
9. Use the /- buttons to change the adjustment value.
Summary of Contents for CL21A8W7X/DRI
Page 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2000 Printed in Korea 3KS2A N 2901 ...
Page 8: ...3 2 Samsung Electronics MEMO ...
Page 32: ...4 16 Samsung Electronics MEMO ...
Page 71: ...8 Block Diagrams Samsung Electronics Schematic Diagrams 8 1 8 1 Power Diagram ...
Page 72: ...8 2 Block Diagram Schematic Diagrams 8 2 Samsung Electronics ...
Page 74: ...9 2 Samsung Electronics MEMO ...
Page 79: ...10 5 POWER W O EW Samsung Electronics Schematic Diagrams 10 5 ...
Page 80: ...10 6 PIP Schematic Diagrams 10 6 Samsung Electronics ...
Page 81: ...Samsung Electronics 10 7 VIDEO SWITCH Schematic Diagrams 10 7 ...