SA8500-321 Turn On
by G-Man of Group 42
The following procedure will allow the 8500-321 converter/descrambler
to receive all scrambled and non-scrambled channels, even
if it is shut down by the cable company. It is not as nice a fix
as the test chip mod and can have unwanted channel switching as
a side effect.
Procedure
Locate the main processor IC on the main P.C. board with the part number
MN1414 on it. This is IC305 on the circuit board. Now locate
jumber W310 just below the IC. Cut this jumper and install a .01uf
disk capacitor across the now open jumper. On the lead of the capacitor
closest to the IC, solder a 22K resistor from this lead and connect the
other end of the resistor to pin 21 on IC305. The descrambler should
now properly receive and descramble all channels.
If the descrambler changes channels by itself, the FSK data jumper
needs to be cut to turn off the cable companies signal that is
interfearing with the above modification.