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48501 Milmont Drive • Fremont, CA 94538
Page 12
Figure 3.
DIP switch and JP9 jumper location
Setting the Mode of Operation
The mode of operation is changed via internal DIP Switch S1. Although DIP Switch S1 has eight
individual ON/OFF switches labeled 1 through 8, only switches S1-3 and S1-4 are utilized.
User should wait at least 15 seconds after turning OFF the
Terranova® 752A before removing the power cord
WARNING!
To change the mode of operation:
1. Turn unit OFF via the
POWER
switch
2. Remove power cord and ion pump cable(s)
3. Remove the six #6-32 screws along the edge of the top cover
4. Carefully lift top cover and disconnect the fan plug
5. Remove top cover
6. Locate DIP Switch S1 (see
)
7. Set switches to desired mode of operation:
Mode 0: S1-3,
OFF
/ S1-4,
OFF
(default)
Mode 1: S1-3,
ON
/ S1-4,
OFF
Mode 2: S1-3,
OFF
/ S1-4,
ON
8. Connect the fan plug and replace top cover
When ready for use, user should re-connect the ion pump cable(s) and power cord. Thereafter,
Terranova® 752A operation may be resumed.