Contents
(continued)
iii
5 Troubleshooting................................................................................. 5-1
5-1. Introduction .......................................................................................... 5-3
5-2. General Troubleshooting...................................................................... 5-3
5-3. Starting with a Dead Tester (Model 41B Only)............................... 5-3
5-4. Troubleshooting the Power Supply...................................................... 5-5
5-5. Troubleshooting the Digital Section..................................................... 5-5
5-6. Troubleshooting the Digital Kernel ................................................. 5-6
5-7. Troubleshooting the A/D Converter Output..................................... 5-7
5-8. Troubleshooting the Keypad............................................................ 5-9
5-9. Troubleshooting the Range Control Circuit..................................... 5-10
5-10. Troubleshooting the EEPROM........................................................ 5-11
5-11. Troubleshooting the LCD Display Module...................................... 5-12
5-12. Troubleshooting the Serial EEPROM.............................................. 5-13
6 List of Replaceable Parts................................................................... 6-1
6-1. Introduction .......................................................................................... 6-3
6-2. How to Obtain Parts ............................................................................. 6-3
6-3. Manual Status Information................................................................... 6-3
6-4. Newer Instruments................................................................................ 6-4
6-5. Parts Lists............................................................................................. 6-4
7 Schematic Diagrams.......................................................................... 7-1
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