SECTION V
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7,

REPLACING R4150 MODELS WITH 13- OR

15-TERMINAL SUBBASES

Disconnect all power to programmer.
Remove R4150 from subbase (trade-in to Authorized Distributor).
Mark all wires on subbase; i.e., wires connected to terminal “9” should be marked “9”.
Disconnect wires as they are marked.
Remove old subbase.
Install 20-terminal Q520A subbase.
Connect wires to subbase per attached cross reference. Pay close attention to footnotes.
Plug in the BC7000. Make sure you select the proper amplifier detector and program module
for the application.
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