Keithley 2002 Repair Manual page 26

Table 2-7(cont.)
Built-in test summary
Test Circuit tested/exercised
202 Series Integration:
202.1 Baseline (for test 202.2)
202.2 Integration Period Bit I15
202.3 Baseline (for test 202.4)
202.4 Integration Period Bit I14
202.5 Baseline (for test 202.6)
202.6 Integration Period Bit I13
202.7 Baseline (for test 202.8)
202.8 Integration Period Bit I12
202.9 Baseline (for test 202.10)
202.10 Integration Period Bit I11
202.11 Baseline (for Test 202.12)
202.12 Integration Period Bit I10
202.13 Baseline (for test 202.13)
202.14 Integration Period Bit I9
202.15 Baseline (for test 202.16)
202.16 Integration Period Bit I8
202.17 Baseline (for test 202.18)
202.18 Integration Period Bit I7
202.19 Baseline (for test 202.20)
202.20 Integration Period Bit I6
202.21 Baseline (for test 202.22)
202.22 Integration Period Bit I5
202.23 Baseline (for test 202.24)
202.24 Integration Period Bit I4
202.25 Baseline (for test 202.26)
202.26 Integration Period Bit I3
202.27 Baseline (for test 202.27)
202.28 Integration Period Bit I2
202.29 Baseline (for test 202.30)
202.30 Integration Period Bit I1
202.31 Baseline (for test 202.32)
202.32 Integration Period Bit I0
300 Series A/D Multiplexer (MUX), A/D Buffer:
300.1 7V Reference, X1 Gain
300.2 1.75V Reference, X5 Gain
300.3 0V Reference, X50 Gain
301 Series Temperature Sensor:
301.1 Temperature Sensor
302 Series A/D Ground Multiplexer:
302.1 Signal Zero to A/D Ground
302.2 Reference LO to A/D Ground
302.3 Ohms LO to A/D Ground
302.4 Divider LO to A/D Ground
Table 2-7(cont.)
Built-in test summary
Test Circuit tested/exercised
303 Series Input Buffer:
303.1 Input Buffer
304 Series Open-circuit Ohms:
304.1 Open-circuit Ohms
304.2 2MΩ Open-circuit Ohms
305 Series 20V Range Multiplexer:
305.1 20V Range MUX Reference HI
305.2 20V Range MUX Reference LO
305.3 20V Range MUX Zero
305.4 20V Range MUX Signal
306 Series Ohms:
306.1 9.6µA Ohms Source
306.2 1.92µA Ohms Source
306.3 High Ohms Voltage Source
307 Series 100:1 Input Divider:
307.1 /100 Input Divider
308 Seres Overload:
308.1 Overload HI
308.2 Overload Ohms
308.3 2MΩ Overload Ohms
400 Series Calibration/Frequency Compensation
DAC:
400.1 -4.36V DAC Output
400.2 -2.15V DAC Output
400.3 0V DAC Output
400.4 +2.33V DAC Output
400.5 +4.48V DAC Output
401 Series Regulator:
401.1 Regulator
402 Series Switching:
402.1 Frequency Switch
403 Series Signal Switching:
403.1 Ground Switch
404 Series Absolute Value (X1 Gain):
404.1 -Full Scale DAC Output
404.2 -Half Scale DAC Output
404.3 Zero DAC Output
404.4 +Half Scale DAC Output
404.5 +Full Scale DAC Output
Troubleshooting
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