文档介绍：Version Aug 2010 RECONE PROCEDURE FOR CONE LOUDSPEAKERS 1 Version Aug 2010 MODELS ? This instructions is prepared for the following models: MODEL RECONE KIT 12F400B 8 OH RK 12F400B 15F400MB 8 OH RK 15F400MB 12N800MB 8 OH RK 12N800MB 15N800MB 8 OH RK 15N800MB 18N1200B 8 OH RK 18N1200B 18N1200BN 8 OH RK 18N1200BN 2 Version Aug 2010 TOOLS AND SUPPLIES ? 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. 3 Version 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. 4 Version Aug 2010 PREPARATION Unsolder the old voice coil leads from terminals. 5 Version 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. 6 Version 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 Repeat this until tape remains clean when withdrawn.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 of any debris. 7 Version 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. 8 Version 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 tin