23 lines
1.3 KiB
Plaintext
23 lines
1.3 KiB
Plaintext
PCS4000.1
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The five second scan resume delay
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is sufficient to prevent scanning restart on momentary signal
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fades and no signal periods between transmissions of different
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stations in a net or in a roundtable. The modification is
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fairly simple, requiring the installation of a single diode on
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the receiver board.
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"Place the set upside down on the bench and remove the
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bottom cover. Remove the cover slowly so as not to yank the
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speaker wires loose from the PC Board. Locate IC303 near the
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front of the receiver board. It can be seen at the lower left
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of the photo on page 14 of the Azden PCS-4000 Manual, with the
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arrow running from (A), running across it. Pins 3,4, and 5 of
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IC303 are tied together on the PC Board. Connect the Anode of a
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1N914 or 1N4148 diode to one of these pins. Pins 9 and 10 of
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IC303 are tied together on the PC Board. Connect the cathode
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end of the diode to one of these two pins. Take care to make
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the solder connections as rapidly as possible to minimize the
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amount of heat conducted from the pins into the IC.
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"Replace the bottom cover and enjoy." That's all there is
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to the modification. Have fun with your new modification. |