喇叭维修步骤-文档资料

15F400MB 8 OH RK 15F400MB
12N800MB 8 OH RK 12N800MB
15N800MB 8 OH RK 15N800MB
18N1200B Байду номын сангаас OH
RK 18N1200B
18N1200BN 8 OH RK 18N1200BN
Version 1.0 Aug 2010
TOOLS AND SUPPLIES
Version 1.0 Aug 2010
PREPARATION
Unsolder the old voice coil leads from terminals.
Version 1.0 Aug 2010
PREPARATION
Using razor knife, remove old cone-coil assembly, and clean with MEK the surfaces, where suspension and surround will mount, of old parts and glue.
Version 1.0 Aug 2010
INSTALLATION
Using the tube of Beyma glue supplied, apply a bead of glue on frame surfaces where suspension and surround will mount, and also over the spider and surround. Wait for 3 minutes.
• TOOLS AND SUPPLIES REQUIRED • Soldering iron, solder, glue, plastic spacer, razor knife,
tweezers, masking tape, epoxy glue (NOT SUPPLIED), cloth rags, methyl ethyl ketone (MEK), cotton swabs, and, if possible, audio oscillator and amplifier. • MATERIALS SUPPLIED • Tube of Beyma glue (blue color), Latex (white color), Plastic spacer, Moving parts, gaskets, dust cap.
proper position. The white glue can be put at the end of the repair (easier, but takes longer time)
RECONE PROCEDURE FOR CONE LOUDSPEAKERS
Version 1.0 Aug 2010
MODELS
• This instructions is prepared for the following models:
MODEL
RECONE KIT
12F400B 8 OH
RK 12F400B
Version 1.0 Aug 2010
INSTALLATION
Insert the plastic spacer into the new voice coil assembly, allowing overhang 10-12 mm below bottom of voice coil. Slide spacer tube over the pole piece and down into gap, making sure tinsel leads on assembly are aligned properly with terminals on frame. Carefully guide voice coil assembly down spacer onto frame and into proper position.
Take a small rag dipped in MEK and use it to press down on spider where it joins the frame. Work back and forth to even out spider and secure bond
on frame. Repeat for surround, working out bumps.
Version 1.0 Aug 2010
INSTALLATION
Spread white glue over the surround using a brush, be careful not to put white glue over the gasket bed. Lay a bead of glue from the Beyma tube on gasket area. Wait for 5 minutes and place gasket segments on frame in
Version 1.0 Aug 2010
PREPARATION
Using razor knife, remove old cone-coil assembly, and clean with MEK the surfaces, where suspension and surround will mount, of old parts and glue.
Version 1.0 Aug 2010
PREPARATION
Fold a piece of masking tape lengthwise around a piece of cardboard (70 mm x 25 mm x 1 mm), with adhesive side exposed and insert it in the air gap and rotate. Repeat this until tape remains clean when withdrawn. Check gap with magnifying light. Clean top plate and magnet of any debris.