Resetting The Modem - ZyXEL Communications U-336E User Manual

DSP code checksum, DSP RAM memory, EEPROM, digital
circuits, and the analog circuit calibrations.
Results of the power-on self-test displayed on your terminal:
0 SYSTEM TESTING
....
1 ROM TEST FIAL....
2 RAM TEST FAIL....
3 LOADING
DEFAULTS.
4 DSP RAM FIAL...
5 DSP RAM FIAL...
6 VO CALIBRATION
FAIL...
7 VR CALIBRATION
FAIL...
8 FR CALIBRATION
FAIL....

Resetting The Modem

A reset command from the panel will restart the power-on self-test.
If an error message is displayed on the screen, turn off the modem,
wait for at least 10 seconds, and then turn the power on again. If
the error condition persists, call the ZyXEL Service Center for
assistance, or follow the return procedure to return the modem to
ZyXEL. If the normal IDLE SCREEN shows up, the original
failure was due to a temporary power-on reset problem and will not
affect modem operation.
108 Diagnostics & Troubleshooting
Self-test indicator. If no error occurs,
this message will last until the end of
the test.
ROM code checksum error.
System RAM fails.
EEPROM checksum error. The
factory default settings will be
downloaded to the EEPROM and the
self-test will be re-initiated. This is
not a real error.
The testing of DSP RAM fails,
condition A.
The testing of DSP RAM fails,
condition A.
Analog circuit calibration error.
Analog circuit calibration error.
Analog circuit calibration error.