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VK8PDG > PK232 08.08.02 10:24l 28 Lines 1087 Bytes #999 (0) @ WW
BID : 20249_VK8PDG
Read: DB0FHN GUEST DG4YDF
Subj: PK-232 can copy satellite telemetry 5 of 5
Path: DB0FHN<DB0ZWI<DB0HOT<OK0PKL<OK0PPL<RZ6HXA<IK1ZNW<IK6PYS<7M3TJZ<JE7YGF<
CT2GWY<VK8PDG<VK8PDG
Sent: 020809/0321z @:VK8PDG.PLM.#NT.AUS.OC [Winlink N T] Z:0830 #:20249
PK232SAT.5 of 5
All you need do is wire in 3 double throw switches with the center
pins of JP4, JP5 and JP6 connected to the center lugs of your
double throw switches.
Then wire the inside and outside pins of JP4, JP5 and JP6 to these
switches so that the JP center pins are switched to the inside
pins
for the internal PK-232 modem or to the outside pins for your
external modem.
These switches can be mounted on the front panel where space permits
(like the upper right corner under "model PK-232").
To ease future servicing I recommend not soldering directly to
the
pins on JP4, JP5 and JP6.
Check your catalogs (or local electronic supply store) for DIP
connectors that are .100 center/.040 square hole size and wire
your
switches to them.
Be sure to mark each connector so you'll always reconnect them
to
the correct pins in the future.
A look at the PK-232 schematic will clearly show you what you
are
doing. A triple pole double throw switch would be nice if you
can
find one. I made do by ganging a SPDT and DPDT together.
CONTINUED IN FILE PK232SAT.2
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