Estun E21 - LCD Diagnosis; Communication Diagnosis

E21 Installation Manual
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4.7 LCD diagnosis
When you enter the DIAGNOSE page, select 6. LED DIAG. to enter LED DIAG. page,
as shown in Figure 4-7.
[Operation Guide] Press , the device will star to diagnose the LCD. To stop the
diagnosis, press .
Press `士` to start
LCD DIAG.
Figure 4-7 LCD diagnosis page
4.8 Communication diagnosis
When you enter the DIAGNOSE page, press Right-Arrow Key to enter the second
page, and select 2. Com. DIAG. to enter Com. DIAG. page, as shown in Figure 4-8.
[Operation Guide] To achieve this function, you should use two connected
devices. Using the communication cable to connect the devices, and enter the Com.
DIAG. page both of them. Press on anyone device (as the receiver), the
receiver page displays “Diagnosing”, and then press on the other device (as the
transmitter), the receiver page displays “The result is: OK”, which indicates the
communication is normal. Then, switch the receiver and transmitter to operate
again according to the above procedure.
Com. DIAG.
Press ´±´ to send
Press ´. ´ to Recie
Figure 4-8 Communication diagnosis page