How to deal with clock abnormal alarm without frequency meter in HUAWEI SYSTEM

Many times we are getting "Abnormal Clock Frequency" alarm in our system, find herewith troubleshooting of this alarm in HUAWEI System without frequency meter. Log on LMT and choose the site has clock abnormal alarm Right click its GTMU board , choose maintain clock Click on query, you can see some information, one is trace mode Right click “trace mode”, choose “setting clock” In trace mode, choose “disable trace range limit” and click set. Query again, you can see : trace mode is disable trace range limit After click set, query board information In clock state, now it’s capture, we need to wait until “locked”, it lasts about 30 mins or more,1h,2h,……….. After clock state is locked, do step 5 again, we can get the current value of clock ,remember the current value number. In trace mode, choose “enable trace range limited” ; Click “ set calibration value “ Write the calibration value with the same current value. At last, click set. Query again. Step 3 Make sure the clock abnormal alarm is cleared and feedback the 3 value : product value , current value , adjust value