LCD2041-R Matrix Orbital, LCD2041-R Datasheet - Page 14

• Manufacturer Part Number: LCD2041-R
• Description: LCD Character Display Modules Black Background Red Text
• Manufacturer: Matrix Orbital

3 Troubleshooting
3.1 The display does not turn on when power is applied.
3.2 The display module is not communicating.
Matrix Orbital
• First, you will want to make sure that you are using the correct power connector. Standard floppy
• The next step is to check the power cable which you are using for continuity. If you don’t have an
• The last step will be to check the Power / Data Connector on the LCD0821. If the Power / Data
• First, check the communication cable for continuity. If you don’t have an ohm meter, try using a
• Second, please ensure that the display module is set to communicate on the protocol that you are
• Third, ensure that the host system and display module are both communicating on the same baud rate.
drive power cables from your PC power supply may fit on the Power/Data Connector however they do
not have the correct pin out as can be seen in figure 8 on page 4. Matrix Orbital supplies power cable
adapters for connecting to a PC, which can be found in the Accessories Section on page 2.
ohm meter, try using a different power cable, if this does not help try using a different power supply.
Connector has become loose, or you are unable to resolve the issue, please contact Matrix Orbital,
see 12.5 on page 47 for contact information.
different communication cable. If you are using a PC try using a different Com Port.
using, by checking the Protocol Select Jumpers. To change the protocol used by the display module
see Section 2.5 on the preceding page.
The default baud rate for the display module is 19200 bps.
Figure 15: Protocol Select Jumpers
LCD0821
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