USER MANUAL
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RRC-1258 MKII
Ba1258B_RemoteRig_MkIIs-A30
Microbit 2.0 AB 2010. All rights reserved
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User manual
Rev. A30
– 2014 Jan 21
118 of 228
Using HM-133 Microphone
If you have a RRC-1258MkIIs you can buy the HM-133 adapter pcbs which let you use the
HM-133 microphone with all it’s buttons.
The small pcbs are mounted in the strapping sockets which means that no red straps are
needed. The pcb with the yellow cable are mounted in the Control-RRC and the pcb with the
blue cable are mounted in the Radio-RRC. The yellow and blue cables need to be solder to one
point on the RRC pcb. See pictures below. Be sure to remove power when solder. There No
settings need to be changed after mounting the pcbs.
There is one solder pad which is significantly
bigger than the other via holes to the right of
the CPU over the Crystal. That’s the one
which the cables should be soldered to.
