Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018
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Appendix 1.
Bypassing the High Pass Filter of the SAL preamplifier.
HPF Connected.
It can be seen in the image above, that there are two solder lines in place on the lower left corner of
the small “daughter board”, between the center contacts and the HP (High Pass) contacts.
NF
HP
o o o
o o
o
To bypass the filter, remove the solder with a wick or a solder sucker, use minimal heat.
Then, solder jumpers or make a trace with the solder from the center contacts to the NF (No Filter)
contacts.
HPF Bypassed.
NF
HP
o o
o
o o
o
