Text preview for : Alignment & Adjustment.pdf part of Samsung monitor lcd samsung 540N_540B_740N_740B_740T_940B_940T_940N Monitor Lcd Samsung modelos: 540N 540B 740N 740B 740T 940B 940T 940N

Back to : monitor lcd samsung 540N_ | Home

3 Alignments and Adjustments

3 Alignments and Adjustments
This section of the service manual explains how to use the RS232 JIG. This function is needed for AD board change and program memory (IC110) change.

3-1 Required Equipment
The following equipment is necessary for adjusting the monitor: · Computer with Windows 95, Windows 98, or Windows NT. · MTI-2031 DDC MANAGER JIG

3-2 Automatic Color Adjustment
To input video, use 16 gray or any pattern using black and white. 1. Select english for OSD language. 2. Press the " (Enter/Source)" key for 5 seconds.

3-3 DDC EDID Data Input
1. Input DDC EDID data when replacing AD PCB. 2. Receive/Download the proper DDC file for the model from HQ quality control department. Install the below jig (Figure 1) and enter the data.

MTI-2031 DDC Manager Parallel Connector (25P Cable) Connect Monitor (Signal Cable)
Figure 1.

3-4 OSD Adjustment When Replacing Panel
1. Adjust brightness and contrast to 0. Then, press the (Enter/Source) key for 5 second. Service function OSD will appear on screen. 2. Press the + key to place the cursor on the panel. Press the menu key for 5 seconds.

3-5 OSD Adjustment When Replacing Lamp Only
1. Adjust brightness and contrast to 0. Then, press the exit key for 5 seconds. Service function OSD will appear on the screen. 2. Press the + key. Select upper lamp and press the menu key for 5 seconds. Then, select lower lamp and press the menu key for 5 seconds.

: Please be sure to read the following instructions for details on service function.


3 Alignments and Adjustments

3-6 Service Function Spec.
3-6-1 How to Display Service Function OSD
1. The value for brightness and contrast should be changed to zero. 2. Within 5 seconds, press the (Enter/Source) key. 3. Service function OSD will be displayed.

you want to disable the service function OSD, you will have to power off.

Panel Information

Softward Version Checksum Figure 2. The example of service function OSD The service function OSD is based on a grid of 29 columns x 12 rows. The service function OSD consists of panel information, software version and MICOM checksum.

3-6-2 How to Control Service Function OSD
1. With the panel selected on OSD, whenever you press the right key, the base color will change to blue from "Panel" to "Upper Lamp", "Lower Lamp".

Figure 3.


3 Alignments and Adjustments

3-6-3 How to Control Service Function OSD
·After change the panel or lamp, you must reset service function OSD. ·The case of panel change After changeing the panel, press the menu key within 5 seconds,. Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).

Figure 4.

3-6-4 How to Control Service Function OSD
·In the case of Upper Lamp or Lower Lamp change After changeing the Upper Lamp or Lower Lamp, 1. Select the Upper Lamp or Lower Lamp 2. Press the Menu key within an 5 seconds. Then, Ch. No and time will be reset to zero (selected item only).

Figure 5, 6.


3 Alignments and Adjustments

3-7 How to execute DDC




1. Open file. 2. Select Port #1. 3. Select DDC file. 4.Click, "Next" Button


5. Type in the monitor serial number and press Enter. *Repeat this step 2 to 5 times in digital inputs after the analog input.