475/Repairs: Difference between revisions

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m (→‎Problematic Transistors: Extracted list from PDF)
m (→‎Problematic Transistors: KSP10 equivalent)
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They're Q390, Q420* (or [[151-0223-00]]), Q502, Q504, Q506, Q664, Q674, Q688* (or [[151-0223-00]]), Q698* (or [[151-0223-00]]), Q712, Q714, Q716, Q1004, Q1124, Q1134, Q1182, Q1184* (or [[151-0127-00]]) and Q1138.
They're Q390, Q420* (or [[151-0223-00]]), Q502, Q504, Q506, Q664, Q674, Q688* (or [[151-0223-00]]), Q698* (or [[151-0223-00]]), Q712, Q714, Q716, Q1004, Q1124, Q1134, Q1182, Q1184* (or [[151-0127-00]]) and Q1138.
The [[media:KSP10.pdf | Fairchild/OnSemi KSP10]] functions in place of these, but '''note that the pinouts are different!'''
As Tek lists some of the parts with the alternative of [[151-0223-00]], I'd guess that some locations are more critical than others - hopefully we'll learn and share info here as we find it.


==General Troubleshooting==
==General Troubleshooting==
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