2 Troubleshooting Procedures
Procedure 2 Error Code Check
If the power supply microprocessor detects a malfunction, it indicates the error code as
shown below.
The error code begins with the least significant digit.
Table 2-3 Error code
Error code Where Error occurs
N0FB* Battery
N0FT* Power ON/OFF
N0FU* Power management
2-12 [CONFIDENTIAL] Satellite M500D/M505D/M507D Maintenance Manual
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