Motorola TLN2660A (Standard) Bedienungsanleitung

MOTOROLA EXTERNAL (AMPLIFIED) SPEAKER MODS

Accumulated over time by: Tom Hammond, NØSS

10 January 2008

Corrections are encouraged, please send to: nØ[email protected]

(note: In the link above, the 'Ø' is the numeral ZERO, not an 'oh')

MOTOROLA Inc.

EXTERNAL SPEAKER INSTALLATION

Models: TLN2660A (Standard) SSN2005B (V.S.P II)

TLN2661 B (V.S.P.) SSN2008A (V.S.P)

An external speaker is required for some models or when V.S.P. or V.S.P. II hands-free operation is implemented. The

speaker should be mounted under the dash, on the transmission hump, or other suitable location using the mounting

bracket supplied with the speaker assembly. Figure 1 shows a typical external speaker and its mounting hardware.

CAUTION

Do not install the speaker unsupported to prevent shifting of the speaker which could interfere with

the proper operation of the vehicle. If available, always use the supplied mounting hardware.

NOTE

The speaker housing is electrically insulated from the mounting bracket by insulating washers. Take

precautions to prevent the speaker housing from contacting any metal in the vehicle, such as the

dashboard or firewall. The speaker housing is internally connected to ground, and contacting any external

metal will cause a ground loop which may introduce alternator whine or other undesirable interference.

Step 1. Loosen the two wing nuts (one on each side) several turns and remove the mounting bracket from the speaker.

Step 2. Temporarily position the speaker and mounting bracket to verity the desired mounting location. Make sure that

the speaker will not interfere with the operation of the vehicle (preferable placement is on the passenger side of

the vehicle) and that the speaker front is not blocked by sound absorptive material. Using the mounting bracket

as a guide, mark two holes on the transmission hump or other selected location. The two mounting tabs on the

bracket are somewhat flexible to conform to a curved surface as necessary.

Step 3. Using an awl or similar device, open two holes in the carpet at marked locations. This must be done prior to

drilling to avoid running the carpet.

Step 4. Using a 4mm (5/32") bit, drill the two mounting holes and secure the bracket using the two 10-16 x 5/8 tapping

screws (3-136756) provided.

Step 5. Mount the speaker to the mounting bracket. Ensure that at each mounting position the self-adhering insulating

washer is on one side of the bracket and the insulating shoulder Washer is on the other side of the bracket (as

shown in Figure 1). Securely tighten the two wing nuts.

Figure 1 - External Speaker Installation Detail

MOLEX CONNECTOR ASSEMBLY DIAGRAM

Motorola External (Amplified) Speaker

Models: TLN2660A (Standard) SSN2008A (VSP)

TLN2661B (VIP) SSN2005B (VSP II)

1. Carefully strip the outer insulation off of the bare end of the cigarette lighter plug cable and audio cable, back 1-1/2'.

Then strip the insulation off each individual wire back 1/4", unbraid 1-1/2" of the shield of the audio cable and twist into

a single conductor if the audio cable needs this step.

2. Place the stripped ends of both the dc and audio cables side by side and slide both the 1/4" and 3/8" shrink tubing

down over both until 2_3" of the cables protrude.

3. Follow the pictorial diagram for wire and jumper placement.

4. Twist the wire with the indicated jumper and crimp to the female socket. If you choose to solder, lay the twisted wire

jumper in the "U" portion of the female socket. Fold the both sets of "ears" down on your twisted wires using needle

nose pliers, then carefully solder only in the folded "ear" area.

5. Following the pictorial diagram, locate the correct hole location and insert the sockets into the rear (numbered end) of

the connector. A miniature screwdriver is helpful to push the sockets into the connector. The rear of the socket will

be recessed into it's hole about 1/16" when properly seated.

6. Slide the 1/4" shrink tubing up the cables, with the jumpers inside the tubing, until it is about 3/8" from the back of the

connector. Heat the shrink tubing uniformly until it shrinks down on the cables and jumpers. Now slide the 3/8" shrink

tubing up over the 1/4" tubing and heat until it shrinks down. Now slide the 3/4" shrink tubing over the connector,

allowing one half of the connector length to protrude from the tubing. Heat uniformly on all four sides of the connector

and down over the 3/8" tubing. Allow to cool.

7. Mount the speaker using the provided two page installation guide.

8. Plug the connectors together until they are fully seated.

9. You are now ready to plug !n the DC plug to 12VDC and the audio plug to your speaker output jack of your radio, and

enjoy great fidelity!!!

Note: This plug is as viewed from the numbered (back) side of the plug

Insert pins from the back side of the plug.

A 'CLEANER' RE-WIRING METHOD

(Not necessarily easier, but cleaner)

Motorola External (Amplified) Speaker

Models: TLN2660A (Standard) SSN2008A (VSP)

TLN2661B (VIP) SSN2005B (VSP II)

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 >+12VDC YEL >AF INPUT

BRN >DC GND WHT >AF GND

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!

Motorola External (Amplified) Speaker

Models: TLN2660A (printed on Speaker Case)

TRN5897A (printed on AF Amp PC Board)

Motorola External (Amplified) Speaker

Models TRN5898B1S (printed on AF Amp PC Board)

Motorola External (Amplified) Speaker

Model: NSN6054A (printed on Speaker Case)

8405326T.xx (printed on AF Amp PC Board)

(this is a 12W amplifier)

PC board as viewed from the TOP (component) side, with

a few components shown just to assist in identification.

NOTE: This amplified speaker utilizes a balanced audio

input... neither of the input lines are grounded. As a result,

you have two options for connecting the AF input:

1) Connect directly to the input wires (BLU & WHT) with no

attempt at input isolation. This method will work, but you may

run the risk of a possible ground loop and subsequent hum

on the audio output. Or,

2) Install a small audio isolation transformer in the AF In line.

An 8-Ohm to 300-Ohm isolation transformer works very well.

Remove the BLU & WHT wires from the PC board. Connect

the AFInput from the radio (BLU & WHT wires) to the

transformer's 8-Ohm secondary and connect the primary to

the BLU & WHT pads on the PC board. This method will also

produce more audio output than method #1.

There are two rectangular pads associated

with the BLU and WHT pads on the PC

board. If you remove the solder from these

two rectangular pads, the empty holes make

a nice attachment point for the secondary

wires from the isolation transformer. I used

a transformer from Mouser Electronics, part

#42MT010 (Xicon 350 Ohm CT : 8 Ohm

CT). I folded back the center tap wires,

wrapped the transformer in plastic electrical tape, and then

soldered the transformer directly to the under side of the PC

board allowing it to hang by the primary winding leads. I then

soldered the BLU & WHT wires back to the 8-Ohm

secondary leads and insulated them with heat shrink.

You may find it helpful to temporarily remove the blue

capacitor at C8 to facilitate installation of the isolation

transformer. Just DON'T FORGET to replace C8 when you

arefinished!

Motorola External (Amplified) Speaker

Model: NSN6048A (printed on case)

84D05644D01 (printed on AF Amp PCB)

PC Board Connections

+12VDC to [V+] AF Input to [In]

DC Gnd to [GND] AF Gnd to [GND]

And, add a jumper between [V+] and [SQ]

Modification Steps

NOTE: This amplified speaker (NSN0648A) uses a PC board with the ID# 84D05644D01 etched into the copper. This

model does NOT utilize external output transistors which are physically attached to the PCB mounting frame. If your PC

board HAS this ID number but DOES HAVE external output transistors, refer to the pages of this document which

reference model NSN6027A and PC board ID #84D05644D01.

1) Remove the speaker case and remove the screws holding the PC board to the internal frame.

2) NOTE that all control cable wires are installed in a semi-circle around a cutout in the PC board. Also note that, on the

COMPONENT side of the PC board, several of the holes are labeled, for easy identification later. This will be important

in future steps. CONFIRM that the component-side labels MATCH those labels which have been added to the PC

board drawing shown above.

3) With the exception of the speaker wires, CAREFULLY desolder and remove ALL wires from the remaining PC board

holes.

4) Install new +12VDC DC power leads, connecting [GND] and [V+].

5) Install a shielded AF input lead (RG-174 works nicely), connecting to holes [GND] and [IN].

6) Re-route the DC and AF leads out of the case, reinstall the PC board to the mounting frame, and reinstall the case.

7) Install DC and AF In connectors as appropriate. DONE!

Motorola External (Amplified) Speaker

Model: NSN6027A (printed on case)

84D05644D01 (printed on AF Amp PCB)

PC Board Connections

+12VDC to [V+] AF Input to [In]

DC Gnd to [GND] AF Gnd to [GND]

And, add a jumper between [V+] and [SQ]

Modification Steps:

NOTE: This is what I call the 'clean' mod. The quick 'n dirty mod is on

the following page. This mod is probably most applicable if the cable

on your speaker has been cut short.

NOTE: This amplified speaker (NSN6027A) uses a PC board with the

ID# 84D05644D01 etched into the copper. This model utilizes

external output transistors which are physically attached to the PCB

mounting frame. If your PC board HAS this ID number but DOES

NOT HAVE external output transistors, refer to the page of this

document which references model NSN0648A and PC board ID

#84D05644D01.

1) Remove the speaker case and remove the screws holding the PC

board to the internal frame.

2) All control cable wires are installed in a semi-circle around a cutout in the PC board. Also note that, on the

COMPONENT side of the PC board, several of the holes are labeled, for easy identification later. This will be

important in future steps. CONFIRM that the component-side labels MATCH those labels which have been added to

the PC board drawing shown above. NOTE that although the pad at the bottom of the semi-circle is NOT labeled, it is

actually the ground (GND) pad for the circuit.

3) CAREFULLY desolder and remove ALL (7) wires from the pads around the semi-circular cut-out on the PC board.

4) On the component side of the PC board, install new +12VDC DC power leads, connecting to holes [GND] and [V+].

5) On the component side of the PC board, install a shielded AF input lead (RG-174 works nicely), connecting shield to

[GND] and center conductor to [IN].

6) On the non-component side of the PC board, install an insulated jumper between [RET] and [GND]. There may be NO

HOLE available for attaching the GND side of this jumper. Just solder to the available foil.

7) On the non-component side of the PC board, install an insulated jumper between [SQ] and [+V].

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!

Motorola External (Amplified) Speaker

Model: NSN6027A (printed on case)

84D05644D01 (printed on AF Amp PCB)

Modification Steps:

NOTE:This is what I call the quick 'n dirty mod. The quick

'clean' mod is on the previous page. This mod is

probably most applicable if your speaker still has a long

cable attached.

NOTE: This amplified speaker (NSN6027A) uses a PC board with the ID# 84D05644D01 etched into the copper. This

model utilizes external output transistors which are physically attached to the PCB mounting frame. If your PC

board HAS this ID number but DOES NOT HAVE external output transistors, refer to the page of this document

which references model NSN0648A and PC board ID #84D05644D01.

1) Remove the speaker case and remove the screws holding the PC board to the internal frame.

2) All control cable wires are installed in a semi-circle around a cutout in the PC board. Also note that, on the

COMPONENT side of the PC board, several of the holes are labeled, for easy identification later. This will be

important in future steps. CONFIRM that the component-side labels MATCH those labels which have been added to

the PC board drawing shown above. If the numbers on do not match, then this may NOT be the appropriate set of

modification instructions.

3) Write down the wire colors for the following PC board points (standard colors are shown in parentheses): IN (Brn), SQ

(Grn), GND (Blk & Wht), +V (Red & Yel), and RET (shield).

4) Reassemble the speaker cabinet and make the following connections at the far end of the speaker cable:

Connect the two (2) GND wires and one (1) RET wire together. They are now "GND".

Connect the two (2) +V wires and one (1) SQ wire together. They are now "+V".

AF Input - Connect to IN wire and to GND

+12VDC - Connect "+" to +V, connect "-" the GND

5) Done..!

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