Specifications

Chapter 2 Service
Error Messages
Assembly-Level Service Guide 167
• +740, “Calibration information lost: count, security state, security
code, string”
• +741, “Calibration data lost: string data”
• +742, “Calibration sata lost: corrections”
• +748, “Calibration memory write failure”
Self-Test Errors (901...)
Diagnosing the Faulty Assembly Using Self Test Errors 901 - 912
If the instrument reports self-test errors 901 - 912, this means the
processor board is unable to correctly program or communicate with the
FPGAs (programmable chips) on the main board. In this case, further
troubleshooting is required to determine where the fault lies. The
problem could be due to out of date firmware, unseated processor board or
main board, assembly failure or processor board failure.
The following errors indicate failures that may occur during a
Self Test:
• +901, “Self Test failed; Autocal failure”
– (1) 53200-66501 Motherboard
• +902, “Self-test failed; Main CPU power supply out of range”
– (1) 53200-66501 Motherboard
• +903, “Self-test failed; Real time clock settings lost”
– (1) RTC ‘coin’ battery (CR2032); (2) 53200-66502 front panel assy
• +904, “Self-test failed; Main CPU error accessing boot env”
– (1) P0500-63001 processor board
• +905, “Self-test failed; Failed to read FPGA Rev”
– (1) 53200-66501 Motherboard; (2) P0500-63001 processor board
• +906, “Self-test failed; FPGA Rev is less than expected”
• +907, “Self-test failed; PIC communication failure”
– (1) 53200-66501 Motherboard; (2) Battery; (3) P0500-63001
processor board