- When pressing the touch panel, the LED will illuminate. When nothing is pressing on the touch panel, the LED will be dark. This indicates the circuit between “computer – controller – touch panel” is normal.
- If the LED is constantly illuminated, the touch panel’s active area is being compressed by a mechanism or object or there is a pin correspondence error between the touch panel and controller.
(Remark: if the driver for the PenMount 6000 RS-232 has not been installed, the LED will be constantly illuminated.)
- When pressing the touch panel, if the LED does not illuminate, the following reasons may be the cause: no power supply, touch panel malfunction, controller malfunction, connector error, or operation is occurring on the wrong side of the touch panel.