Estun E21 - Output Diagnosis; Keyboard Diagnosis

E21 Installation Manual
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4.3 Output diagnosis
When you enter the DIAGNOSE page, select 2. OUT DIAG. to enter OUT DIAG. page,
as shown in Figure 4-3.
[Operation Guide] Using the Arrow Key to move the cursor to the corresponding port
icon, and then press , the relay switch will beat, and the icon will light, which
indicates that this output port is normal.
X--
OUT DIAG.
X+
X-
XIP
X++
Y--
Y+
Y-
YIP
Y++
SDY
ER
EH
Please press `±`
Figure 4-3 Output diagnosis page
4.4 Keyboard diagnosis
When you enter the DIAGNOSE page, select 3. OUT DIAG. to enter KEY DIAG. page,
as shown in Figure 4-4.
[Operation Guide] Press any key, the screen will display corresponding key name.
The key is：
KEY DIAG.
Enter
Figure 4-4 Keyboard diagnosis page