Matrix Orbital MOP-GL12864F - Manual (Page 8)

7
Troubleshooting
Power
For your MOP Display to function correctly, appropriate power must be applied, often as indicated by
the backlight illuminating or a darkening of the character spaces. Please refer to the power diagram
below and reference all voltages to the specifications provided.
Figure 6: Display with Negative Voltage Output
Figure 7: Display without Negative Voltage Output
Display
If your display is powered successfully, the backlight or contrast should be evident. A lack of text could
be the result of a high contrast voltage, lower V
0
.
Communication
When communication of either text or commands is interrupted, check all data and control pins for
continuity. Finally, slow down communication and refer to timing diagrams and specifications for
proper control flow.
Precautions
• Do not make extra holes in the display, modify its shape, or change the components.
• Avoid applying excessive electrical or mechanical shock to the module.
• Do not drop, bend, twist, or disassemble the display.
• Avoid operation outside absolute maximum ratings.
• Solder only to the I/O terminals provide, ensuring proper grounding.
• Store in an anti-static container within a clean environment, clean carefully if necessary.