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pk87.8
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Text File
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1990-09-04
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806b
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21 lines
PK87.8
On the underside of the board link the through hole on the track that
has just be cut to pin 11 of U 20, see Fig 2.
____________ Bottom side of board
_________ \ at top end of U 5 (8530A)
\ o
Connect -> =====\ o /=
this hole ==O \==============/
to pin 11 ___________
of U 20 ______/ _________ \___
_______/ _______ \____
________/ ___ \_____ nd put it
in the position marked C 5. Put the 220pF capacitor in the position marked
C 3 and change the crystal to the 4.9152MHz crystal. On the top side of the
board between U 5 and U 14 (8530A and 7910) a thin track passes under R 12,
cut this track, see Fig 3.
continued in file pk87.4