9
____ 9) Remove the main PCB board assembly by lifting it up
and out from the back of the PK-232. Try not to bend the
leds on the led board.
____ 10) If your PK-232 is equipped with a 2400-baud modem or
other modification that uses the external modem port, it
must be removed.
____ 11) If your PK-232 is equipped with a 3
rd
party modification
such as a TAPR kit, it must be removed.
____ 12) If your PK-232 is equipped with a Timewave
PSK/Soundcard interface, it must be removed. If your PK-
232MBX main board has headers on JP4, JP5, and JP6, be
sure to replace the jumpers on pins 2 & 3 of those headers.
If you have jumpers in place on JP4, JP5, & JP6, you
should not remove them. If you do not have jumpers on
JP4, JP5, & JP6, do not install them (older AEA models.)
____ 13) If your PK-232 is equipped with a Timewave reset
switch, it must be removed.
____ 14) Remove resistor R28 - 10 Ohm -(brown-black-black.)
You can just clip the leads near the body of the resistor.
You do not need to unsolder the leads from the board.
____ 15) If your PK-232 has the JP1 battery jumper connector
mounted on the bottom of the main board, it must be
removed. A new connector is provided with the SC
upgrade kit to place on the top of the board in the same
holes. Use care in removing the JP1 from the bottom of
the board so you do not damage the pads or vias.
____ 16) If you removed JP1 from the bottom of the main PK-
232 board in the previous step, install the replacement JP1
connector on the top of the board.
To avoid melting the
Summary of Contents for PK-232SC
Page 4: ...4...
Page 18: ...18 Figure 5 RX audio with DSP...
Page 33: ...33 SC Board Parts Layout...
Page 34: ...34...
Page 35: ...35 Fig 16 Parts Layout SC daughterboard Note use computer PDF zoom for high resolution...