M377: Difference between revisions

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28 bytes added ,  21 June 2020
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allowing their outputs to be wired in parallel.
allowing their outputs to be wired in parallel.
To minimize board complexity and keep the layout symmetrical, the purpose of the output channels varies:
To minimize board complexity and keep the layout symmetrical, the purpose of the output channels varies:
* Output 1 (pins 25 and 26) is either AUX SIG (aka AUX TRIGGER) or DISPLAY, depending on the position of the IC on the board.
* Output 1 (pins 25 and 26) is either AUX SIG (aka AUX TRIGGER) or DISPLAY, depending on the rotational orientation of the IC on the board.
* Output 2 (pins 22 and 23) of all 165-2089-xx ICs are the TRIGGER signal.
* Output 2 (pins 22 and 23) of all 165-2089-xx ICs are the TRIGGER signal.
* Output 3 (pins 19 and 20) is either AUX SIG (aka AUX TRIGGER) or DISPLAY, depending on the position of the IC on the board.
* Output 3 (pins 19 and 20) is either AUX SIG (aka AUX TRIGGER) or DISPLAY, depending on the rotational orientation of the IC on the board.
[[File:Tek 11a52 m377 flip.jpg|500px|caption]]
[[File:Tek 11a52 m377 flip.jpg|500px|caption]]
Two 165-2089-xx M377 ICs facing one another in an 11A52.
Two 165-2089-xx M377 ICs facing one another in an 11A52.

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