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2001 Main Logic Assembly
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== What it does not contain == '''There is no voltage regulator in this list.''' The PET 2001 main logic board has none โ it receives +5 V and +9 V unregulated from elsewhere in the machine. There is also no mains component, no reservoir capacitor and nothing to do with the monitor; all of that is on the display assembly, listed separately at [[Video Board Parts List (1 of 3)]]. '''One position is printed oddly.''' The LM555 timer is listed against ref. des. '''"UDE9"''', which is not a valid single location โ the main logic schematic places the timer at E9. Read the board.
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