Contents
(continued)
iii
5-14. Accessing the A5 Battery Charger .................................................... 5-13
5-15. Removing the Power Transformer Assembly ................................... 5-13
5-16. Troubleshooting .................................................................................... 5-14
5-17. 10V Reference Performance Test ..................................................... 5-14
5-18. Troubleshooting the A5 Battery Charger Assembly ......................... 5-14
5-19. Transformer/Rectifier/Filter ......................................................... 5-15
5-20. Battery Charger ............................................................................. 5-15
5-21. +11.5V DC Preregulator ............................................................... 5-15
5-22. +11.5V DC Regulator ................................................................... 5-16
5-23. -6V DC Supply ............................................................................. 5-16
5-24. IN CAL LED Logic ...................................................................... 5-16
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 ................................................................................ 6-3
6-5. Service Centers ..................................................................................... 6-4
6-6. Parts ....................................................................................................... 6-4
7 Schematic Diagrams............................................................................ 7-1
A1 Front Panel PCA............................................................................................ 7-3
A2 Flex Circuit PCA ........................................................................................... 7-5
A3 BCD Switch PCA .......................................................................................... 7-6
A4 Oven Control PCA......................................................................................... 7-7
A5 Power Supply PCA........................................................................................ 7-8
Index
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