User's Manual

MTK952 User Manual
rev.06
20
Troubleshooting
Alarms
Alarm description
Troubleshooting
TX Power Mismatch
The SWR on Tx out is too high
- check if the antenna is correctly connected
- check if the antenna cable is correctly
connected
- check if the antenna frequency is according
to the one set on the transmitter
reduced TX Power
The SWR on Tx out is too high,
the RF power is reduced
- check if the antenna is correctly connected
- check if the antenna cable is correctly
connected
- check if the antenna frequency is according
to the one set on the transmitter
Timeout 5 sec on PLL
Error during frequency tuning
- send to repair at Wisycom Repair Centre
bus I2C Error
Error on I2C bus
- send to repair at Wisycom Repair Centre
Timeout 5 sec on PLL
OL 969
Error during frequency tuning
- send to repair at Wisycom Repair Centre
High internal
temperature
One of the 4 temperature
sensors measures a temperature
> 60°C
- check if the two fans work properly (check
alarms code 0x02 or 0x03 on the alarm list)
- switch off the MTK952 for cooling and check
the location temperature
- clean the ventilation grids
Fan #1 doesn't work
The fan on the left (#1) doesn’t
turn
- switch off and switch on the MTK952
Fan #2 doesn't work
The fan on the right (#2) doesn’t
turn
- switch off and switch on the MTK952
Recovered
configuration and
calibration data from
copy1 on the memory
During the MTK952 initialization
phase, the CRC-16 check of data
(copy1) detects error.
- none (the MTK952 automatically replaces
the corrupt copy1 with copy2)
Recovered
configuration and
calibration data from
copy2 on the memory
During the MTK952 initialization
phase, the CRC-16 check of data
(copy2) detects error.
- none (the MTK952 automatically replaces
the corrupt copy2 with copy1)
Load default
configuration and
calibration data
During the MTK952 initialization
phase, the CRC-16 check of data
(copy1 and copy2) detects error.
- check in the MAIN>Options>info menu the
Serial take on the ‘UNCAL’ vale. In this case
send the MTK952 to the Wisycom Repair
Centre for recalibration.
If a problem not listed in the above table occurs or if the problem cannot solved with the proposed
troubleshooting, please contact support service at [e-mail] or [e-mail].