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AF AMPLIFIER PC BOARD (SLN4244A)
Note: Foil patterns for this PC board vary slightly between PC board versions (e.g. A & B versions) but
component locations do not vary significantly from version to version.
1) Remove the speaker case and remove the screws holding the PC board to the internal frame.
2) Unplug the 8-pin plug from the PC board and clip any wires which are installed in the holes marked with an "X"
in the illustration to the right. DO NOT CLIP the following wires connected to the four center pins of the
connector:
RED-BLK
BRN
3) Install two (solder-bridge) SHORT jumpers as shown in the outset, above.
4) Cut the four remaining wires from the 8-Pin plug to a length of about 2" and strip 1/8" of insulation from each
wire.
5) Install and insulate new DC power leads, connecting them to the two wires indicated in step 2.
6) Install and insulate a new shielded AF input lead (RG-174 works nicely), connecting to the two wires indicated
in step 2.
7) Reconnect the plug to the socket on the PC board.
8) Re-route the DC and AF leads out of the case, reinstall the PC board to the mounting frame, and reinstall the
case.
9) Install DC and AF In connectors as appropriate. DONE!
A 'CLEANER' RE-WIRING METHOD
(Not necessarily easier, but cleaner)
Motorola External (Amplified) Speaker
Models:
TLN2660A (Standard)
TLN2661B (VIP)
>
+12VDC
>
DC GND
SSN2008A (VSP)
SSN2005B (VSP II)
YEL
>
AF INPUT
WHT
>
AF GND
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