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Workshop March 3-4 pg 2
- ISZ failed to carry into AC7.
- Thought problem on MA in PB/PC14. Replaced one slightly low diode and cleaned contacts.
- ISZ really done on MB register card. Cleaning contacts on PC/PD14 and backplane fixed.
- Tested G603 MP boards due to also showing varying memory current. A number had shorted/low forward voltage diodes. Didn't have enough to replace all. Will purchase some 1N3653 diodes to finish repair.
- Replace 1 diode on MP2, 2 on MP3, 1 on MP6, 1 on MP7, and 1 on MP8.