Altec Lansing CD912 CEILING SPEAKER VOICE COIL

Page 2 of 11

Figure 2

Date Code Label located on the CD912-8A’s Shipping Container is located, in upper

right just above the Universal Product Code Label.

Tools/Material Required

•High Frequency Voice Coil Assembly Kit (Part No. CD912-8-DRK)

•Philip Screw Driver (Small Tip)

•Long Nose Pliers (Fine)

•1” Wide Scraper

•Wide, Thin, Flat Screw Driver

•Masking Tape

Page 3 of 11

Figure 3

1. Place CD912-8A 12” Ceiling Speaker with Cone facing upward as shown in

Figure 3 on a clean, flat table.

Figure 4

2. Locate three (3) Philips Head screws (see Figure 4) that secure the Tweeter

Face Plate to the Tweeter Magnet.

3. Using a Philips Head Screw Driver remove the three (3) screws.

4. Carefully lift and remove the Tweeter Face Plate from the CD912-8A.

Page 4 of 11

Figure 5

5. Note - the backside of the Tweeter Face Plate has a “keyed recess” into which

the Base of the High Frequency Voice Coil Assembly fits. This recess

contains a Cork Gasket. Take care not to damage the Cork Gasket.

Figure 6

6. Figure 4 illustrates typical markings that may be found on the Tweeter Magnet

and High Frequency Voice Coil Assembly. The critical marking(s) to be

aware of is associated with the High Frequency Voice Coil’s keyed Plastic

(Black) Base. Note the Red Circle and White Line shown in Figure 6. These

markings denote the Positive (+) Polarity of the High Frequency Voice Coil.

Page 5 of 11

Figure 7

7. Note the two (2) ‘key ears’ of the High Frequency Voice Coil Assembly

contain Pin Terminals (see Figure 8) which are engaging mating Connectors

located in the Tweeter Magnet (see Figure 9).

8. Carefully insert a wide, thin Scraper (or wide, thin Screw Driver) between the

Tweeter Magnet and the High Frequency Voice Coil’s Plastic Base near the

Pin Terminals.

9. Gently rock the Scraper to apply an upward force (away from Magnet) to

disengage and lift the High Frequency Voice Coil’s Pin Terminal from its

mating Connector.

10. Repeat Steps 8 and 9 on the opposite side of the High Frequency Voice Coil’s

Plastic Base to disengage the second Pin Terminal.

11. Note Pin Terminals may not disengage without breaking, see Figures 8 and 9.

Page 6 of 11

Figure 8

12. Figure 8 illustrates the bottom side of the High Frequency Voice Coil

Assembly. Note the right Pin Terminal is missing.

Figure 9

13. Arrow points to the missing High Frequency Voice Coil Assembly’s Pin

Terminal noted in Step 12. This Terminal Pin is still engaged to its mating

Connector.

Page 7 of 11

Figure 10

14. Using a pair of fine Needle Nose Pliers, carefully grab the Pin Terminal

(Note - Tweeter Magnet will attract the Pliers)and gently twist the Pin

Terminal to break the adhesive bond.

15. Carefully pry upward to disengage and remove the Pin Terminal from its

mating Connector.

16. Take care not to grab the black plastic Insulator with the Pliers.

Figure 11

17. Figure 11 shows the High Frequency Voice Coil Assembly’s broken Pin

Terminal, after it has been removed from its mating Connector.

Page 8 of 11

Figure 12a

Figure 12b

18. Clean Tweeter Magnet’s gap with masking tape to insure it is free of debris.

Figures 12a and 12b.

Page 9 of 11

Figure 13

19. Remove the replacement High Frequency Voice Coil Assembly from its

shipping box.

20. Note the Red Dot on the Voice Coil Former near the ‘wide key’ of the High

Frequency Voice Coil’s black plastic Base. This denotes the Positive (+)

Polarity of the Voice Coil and is critical for assembling correctly. Some

newer High Frequency Voice Coil Bases have a ‘+’ Symbol molded into the

plastic.

21. Make sure there are no foreign objects lodged within the High Frequency

Voice Coil Assembly.

Page 10 of 11

Figure 14

22. Insert the two Pin Terminals of the replacement High Frequency Voice Coil

Assembly into their mating Connectors taking care to insure the correct

Polarity.

23. CAUTION - Be sure that the Pin Terminal of the ‘Wide Key’ is inserted into

the marked (Positive) mating Connector (see Figure 14).

24. Firmly apply pressure over both Pin Terminals to fully seat the High

Frequency Voice Coil Assembly. If properly inserted the Assembly will be

flush to the Tweeter Magnet’s surface.

Page 11 of 11

Figure 15

25. Replace the Tweeter Face Plate taking care to insure its key recesses align

correctly with the High Frequency Voice Coil Assembly’s keys. Note Figure

15 shows a White mark on the Tweeter Frame aligning with the White mark

on the edge of the Tweeter Magnet.

Figure 16

26. Using a Philips Screw Diver tighten the three (3) Philips Screws to securely

fasten the Tweeter Face Plate to the Tweeter Magnet.

Dieses Handbuch passt für folgende Modelle

Andere Altec Lansing Sprecher Handbücher

Altec Lansing

Altec Lansing IMT7012 Bedienungsanleitung

Altec Lansing

Altec Lansing 414A LF SPEAKER Bedienungsanleitung

Altec Lansing

Altec Lansing VS2120 Bedienungsanleitung

Altec Lansing

Altec Lansing DTS152A-F LF SPEAKER SYSTEM Bedienungsanleitung

Altec Lansing

Altec Lansing 406B LF SPEAKER Bedienungsanleitung

Altec Lansing

Altec Lansing ORBIT-MP3 - QUICK CONNECT CARD Bedienungsanleitung

Altec Lansing

Altec Lansing 209 CEILING SPEAKER Bedienungsanleitung

Altec Lansing

Altec Lansing 2100 Bedienungsanleitung

Altec Lansing

Altec Lansing iMW725 Bedienungsanleitung

Altec Lansing

Altec Lansing 3124 Bedienungsanleitung

Altec Lansing

Altec Lansing 807-8A HF DRIVERS Bedienungsanleitung

Altec Lansing

Altec Lansing ACS54 Bedienungsanleitung

Altec Lansing

Altec Lansing CF208 CEILING SPEAKER Bedienungsanleitung

Altec Lansing

Altec Lansing 409 CEILING SPEAKERS Bedienungsanleitung

Altec Lansing

Altec Lansing M500 Bedienungsanleitung

Altec Lansing

Altec Lansing Baby Boom XL Bedienungsanleitung

Altec Lansing

Altec Lansing 309 CEILING SPEAKERS Bedienungsanleitung

Altec Lansing

Altec Lansing 221 Bedienungsanleitung

Altec Lansing

Altec Lansing ROCKBOX XL Bedienungsanleitung

Altec Lansing

Altec Lansing 409-8E Bedienungsanleitung

Altec Lansing

Altec Lansing AM9820 SIGNAL PROCESSING Bedienungsanleitung

Altec Lansing

Altec Lansing LIFEJACKET XL Bedienungsanleitung

Altec Lansing

Altec Lansing T612 - QUICK CONNECT CARD Montageanleitung

Altec Lansing

Altec Lansing PORTA Bedienungsanleitung

Beliebte Sprecher Handbücher anderer Marken

argon audio

argon audio IE20 Bedienungsanleitung

Denon

Denon SC-N7 Bedienungsanleitung

Gemline

Gemline Ace 3952 Bedienungsanleitung

Focal

Focal ON WALL 300 Bedienungsanleitung

HEADRUSH

HEADRUSH Maximus HRSP 5024 Bedienungsanleitung

SoundLogic

SoundLogic BCCS-6/6395 Bedienungsanleitung

Peavey

Peavey DTH 218 Bedienungsanleitung

Avantree

Avantree Pluto Air Bedienungsanleitung

Morel

Morel Integra Series INTEGRA OVATION 4 Bedienungsanleitung

Oppo

Oppo SONICA Bedienungsanleitung

Bose

Bose SoundLink Wireless Music System Bedienungsanleitung

Rocksteady

Rocksteady Stadium Bedienungsanleitung

Bowers & Wilkins

Bowers & Wilkins 4 Bedienungsanleitung

Sonance

Sonance SONOS OUTDOOR Series Bedienungsanleitung

Electro-Voice

Electro-Voice EVID FM4.2 Bedienungsanleitung

Pioneer

Pioneer XW-HTD630 Bedienungsanleitung

Onn

Onn BWA16AA002 Bedienungsanleitung

HP GL313AA - USB Speakers PC Multimedia Bedienungsanleitung

Altec Lansing CD912 CEILING SPEAKER VOICE COIL - REPAIR Bedienungsanleitung

Beliebte Sprecher Handbücher anderer Marken