ZyXEL U-336E User Manual - Page 120

Resetting The Modem

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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 Self-test indicator. If no error occurs, .... this message will last until the end of the test. 1 ROM TEST FIAL.... ROM code checksum error. 2 RAM TEST FAIL.... System RAM fails. 3 LOADING EEPROM checksum error. The DEFAULTS. factory default settings will be downloaded to the EEPROM and the self-test will be re-initiated. This is not a real error. 4 DSP RAM FIAL... The testing of DSP RAM fails, condition A. 5 DSP RAM FIAL... The testing of DSP RAM fails, condition A. 6 VO CALIBRATION Analog circuit calibration error. FAIL... 7 VR CALIBRATION Analog circuit calibration error. FAIL... 8 FR CALIBRATION Analog circuit calibration error. 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

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108
Diagnostics & Troubleshooting
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
....
Self-test indicator. If no error occurs,
this message will last until the end of
the test.
1
ROM TEST FIAL
....
ROM code checksum error.
2
RAM TEST FAIL
....
System RAM fails.
3 LOADING
DEFAULTS.
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.
4
DSP RAM FIAL...
The testing of DSP RAM fails,
condition A.
5
DSP RAM FIAL...
The testing of DSP RAM fails,
condition A.
6
VO CALIBRATION
FAIL...
Analog circuit calibration error.
7
VR CALIBRATION
FAIL...
Analog circuit calibration error.
8
FR CALIBRATION
FAIL
....
Analog circuit calibration error.
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.