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Most of the following tests are concerned with components
connected to ICl. If, at any point, there is a performance
problem and all external components check good, recheck
IC1 The following pins are all AC coupled
the DC voltages
on
IIA. AUDIO PLAYBACK
I I B AUDIO RECORD
to outside circuitry, so improper voltages on these pins, if ex-
ternal pads are good. suggest
3,4,6,8,13,17.18,19,20.
Page 7
of the IC:PINS 2,
replacement
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