6
3) Remove the two serrated nuts from the RX IN AUDIO jacks. Use a special nut driver made for
this purpose if you have one. If not, use a spanner wrench if you have one. A pair of needle nose
pliers can be used as a spanner wrench if you are very careful not to slip and scratch the panel or
break the tips on the pliers.
4) Remove 4 screws holding chassis top - two on each side of the PK-900 top cover.
5) Disconnect the cables connecting the PK-900 front panel and the mother board.
6) Remove 3 screws holding back panel - one on each side and one on the bottom of the PK-900
bottom cover.
7) Remove the back panel from the PK-900.
8) Remove the remaining screws on the bottom of the chassis that fastens the motherboard to the
chassis.
9) Remove the motherboard from the chassis.
10) If you have a 9600 baud board installed near the back panel, carefully remove the 9600 baud
board by removing the four screws holding it down and gently pulling it upward to remove it
from its socket. Be very careful not to bend the 20 pins on the bottom of the board. Set it aside
in a protected place. It will be reinstalled later.
11) If you have a PK-900/DSP with a Timewave DSP daughterboard, go to section named “
Instal-
lation with a DSP Daughterboard”
for further installation instructions.
12) If you have a PK-900 without a Timewave DSP upgrade kit, go to section named “
Installa-
tion without a DSP Daughterboard”
for further installation instructions.
Содержание PK-900
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