TROUBLESHOOTING
6-3
Message Status Meaning
Code Err XX 2 The SR715/720's ROM has a checksum error. XX is the checksum
value.
CPU Error 1 The SR715/720 has detected a problem in its CPU.
Data Error 3 CPU RAM failed read/write test.
Det Error 6 The square wave multiplier failed its DC rejection test.
Drv Error i 7 The output drive circuitry failed its test. i is an error code indicating failure
point.
i error
0 100 Hz amplitude fail
1 120 Hz amplitude fail
2 1 kHz amplitude fail
3 10 kHz amplitude fail
4 100 kHz amplitude fail
5 0.25 V amplitude attenuator fail
6 0.1 V attenuator fail
Freq Error i 5 The frequency clock generator failed its test. i is an error code indicating
failure point.
i error
0 100 Hz failed
1 120 Hz failed
2 1 kHz failed
3 10 kHz failed
4 100 kHz failed
Gain Error i 8 The instrumentation amplifier failed its gain test. i is an error code
indicating failure point.
i error
0 the x2 gain failed
1 the x4 gain failed
2 the x8 gain failed
3 the x20 gain failed
Out Error i 9 The source impedance selection circuitry failed its test. This error can
occur if a part is in the fixture during the test. i is an error code indicating
failure point.
i error
0 the 100 kΩ range failed
1 the 6.4 kΩ range failed
2 the 400 Ω failed
3 the 25 Ω range failed
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