Troubleshooting 3-9
28V_DST (M6900) – 28 V output to RF Board
28V_DST (M6901) – 28 V output to RF Board
14V_DST (M6902) – 14 V output to RF Board
V_CTRL_DST (M6903) – Control voltage output to RF Board
V_OMNI_DST (M6904) – Metering signal input from RF Board
PA_EN_DST (M6905) – PA enable signal output to RF Board
PA_IDA_DST (M6906) – PA_ID metering circuit output to RF Board
BAND_ID_JUMPER (J6002) – Unsupported
Refer to Figure 3-4 for the external power and signal connector pin-outs.
Figure 3-4 PA Signal Connectors
3.3 Troubleshooting
3.3.1 Application and Removal of Thermal Grease
In the procedures below, there are instances where thermal grease is used to help disperse heat
generated by the various boards. If boards are to be reused, please make sure the old thermal
grease is removed completely by using 100% denatured alcohol before reapplying new thermal
grease; this will ensure good thermal interface. Please use the appropriate application brush to
apply an even layer of thermal grease in the stated areas.
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