42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
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AST RESEARCH TECHNICAL BULLETIN TB-0012 5-16-84
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MEGAPLUS II IRQ SILKSCREEN CONFLICT
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In certain revisions of the MegaPlus II, the silkscreen for the
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IRQ block is in error. The correct silkscreen for the IRQ jumper
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block should be:
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* * * * * * * * *
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< JUMPER BLOCK
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* * * * * * * * *
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CORRECT
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2 2 3 3 4 4 5 5 7
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S C S C C S C
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The incorrect silkscreen is as follows:
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* * * * * * * * *
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< JUMPER BLOCK
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* * * * * * * * *
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INCORRECT
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2 2 3 3 4 4 5 5 7
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S C S S C C S C
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Notice that the position labeled 3S and 3 are swapped, and 4 was
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changed to 4S.
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Listed below are the revision levels that have the incorrect
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silkscreen for ASSY 03-01165-01 MegaPlus II board:
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REV AO
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REV C
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REV D
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REV E
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