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DO NOT install a 4100-1265 or 4100-1269 DFSM module in the same bay with an Analog Audio
Controller Module (or any module that would control Channel 2 of the PDI). Both modules would
unsuccessfully try to control the PDI’s Channel 2.
If the modules must co-exist in the same box, then they must reside in separate bays, and have an
audio harness connecting them without Channel 2 connections being made. The connecting audio
harness may be a modified harness (734-167) available from the factory or a standard audio
harness (734-052) that you modify as shown in Figure 9. Figure 9 shows two wires on the left that
are cut close to the connector and discarded. The two cut wires were formerly connected to Pins 3
& 6 of the PDI audio connector. After cutting the wires, the remaining stubs must be insulated
with UL-listed electrical tape.
Figure 10. Modified Standard Audio Harness for DFSM Application
DFSM PDI Wiring
Installation
Restriction
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