Samsung Syncmaster 743b Service Manual
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![Page 39
4-11
4. Troubleshooting
Inputting the DDC Data
Use the DDC Manager MTI-2050 version or later.
1) Click the Open [F5] icon.
2) Select a port.
3) Open a DDC file.
4) Select a date and click the OK [Save] button.
5) Click the Next [OK] button.
6) Enter the serial number and then press the Enter button
When inputting digital data after inputting analog data, repeat steps 2 \
to 5.
※
1
2
3
4
5
6](http://img.usermanuals.tech/thumb/66/52524/w64_samsung_syncmaster_743b-service-manual-38.png "Page 39
4-11
4. Troubleshooting
Inputting the DDC Data
Use the DDC Manager MTI-2050 version or later.
1) Click the Open [F5] icon.
2) Select a port.
3) Open a DDC file.
4) Select a date and click the OK [Save] button.
5) Click the Next [OK] button.
6) Enter the serial number and then press the Enter button
When inputting digital data after inputting analog data, repeat steps 2 \
to 5.
※
1
2
3
4
5
6")
![Page 40
4-12
4. Troubleshooting
Inputting the MCU Data
1) Check the following options.
- Manufacture: MSTAR
- Device Type:TSUM16_ROM128K_ext_flash
- Communication Port: DSUB15 (Analog)
- External Memory: PMC25LV010E
2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button.
1
2](http://img.usermanuals.tech/thumb/66/52524/w64_samsung_syncmaster_743b-service-manual-39.png "Page 40
4-12
4. Troubleshooting
Inputting the MCU Data
1) Check the following options.
- Manufacture: MSTAR
- Device Type:TSUM16_ROM128K_ext_flash
- Communication Port: DSUB15 (Analog)
- External Memory: PMC25LV010E
2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button.
1
2")
![Page 45
6-3
6. Wiring Diagram
6-3. Connector Functions
ConnectorFunctions
CN600Supplies 5V from the power board to the main board and transmits the PWM\
output from the
power board to the inverter.
*When a problem occurs: The No Power and Blank Screen errors may occur.
CN1 ~ CN4 InTransmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel.
* When a problem occurs: The Blank Screen error may occur.
CN101Connects the function board.
* When a problem occurs: The No LED screen...](http://img.usermanuals.tech/thumb/66/52524/w64_samsung_syncmaster_743b-service-manual-44.png "Page 45
6-3
6. Wiring Diagram
6-3. Connector Functions
ConnectorFunctions
CN600Supplies 5V from the power board to the main board and transmits the PWM\
output from the
power board to the inverter.
*When a problem occurs: The No Power and Blank Screen errors may occur.
CN1 ~ CN4 InTransmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel.
* When a problem occurs: The Blank Screen error may occur.
CN101Connects the function board.
* When a problem occurs: The No LED screen...")
4-13 4. Troubleshooting 3) Click the Auto Program button. 4) When programming and verification are complete, hard power the monitor off and then on again. 3
6-1 6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board Lamp wire for PanelLVDS for Panel VGA Input
6-2 6. Wiring Diagram 6-2. Wiring Diagram - IP Board Function Connector (Connect to IP-Board) RGB Connector (PConnect to PC) LVDS Connector (Connect to Panel) IP board EEPROM 3708-001150 Scaler SE717M-LF 3711-003847 3701-001219 Flash memory
6-3 6. Wiring Diagram 6-3. Connector Functions ConnectorFunctions CN600Supplies 5V from the power board to the main board and transmits the PWM\ output from the power board to the inverter. *When a problem occurs: The No Power and Blank Screen errors may occur. CN1 ~ CN4 InTransmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel. * When a problem occurs: The Blank Screen error may occur. CN101Connects the function board. * When a problem occurs: The No LED screen and Function failure errors may occur. CN400Transmits the LVDS signals from the main board to the panel. * When a problem occurs: The Blank screen and No Power errors may occur. 6-4. Cables UseLVDS 30P FFC cable CodeBN96-02854J Photo