TK-5210112. Tighten the two screws from the TX-RX PCB side.3. Firmly tighten the hexagon screws of the GND terminal.Installation Procedure during PartsReplacement■ Attaching the Sheet (G10-1338-04, J99-0383-14)to the Front Case Speaker and Installation ofthe Packing (G53-1633-04)1. Attach a new fiber sheet 1 (G10-1338-04) so that itsconvex fits the hollow of the front case 2.2. Attach a new pressure sensitive adhesive sheet 3 (J99-0383-14) so that its convex fits the hollow of the frontcase 4.3. Remove the separation sheet from the pressure sensitiveadhesive sheet with a pair of tweezers 5.4. Fit the packing 6 (G53-1633-04) into the front casespeaker.Note:Fit the packing into the hollow of the case so that the twolow-height places in the convex of the packing are posi-tioned on the lower side 7.5. Verify that the packing does not ride on the rib of the case.DISASSEMBLY FOR REPAIR■ Top Packing (G53-1638-04) Installation Procedure1. Ensure that the hardware fixture is first secured to thechassis.2. Hook the packing (coated with silicon oil) in the upper leftgroove of the chassis 1, then fit the packing into the rightgroove of the chassis. 2Notes:• Verify that the chassis grooves and packing are free fromdirt and dust.• To remove the packing from the chassis groove, use aresin adjustment bar or other such device. If the packingis pried with a sharp metallic tool, such as tweezers, thepacking may become damaged.3. Verify that the packing fits snuggly into the groove of thechassis.■ Volume Torque-up Packing (G53-1628-04)Installation ProcedureInsert the packing using a pair of tweezers so that thehollow of the packing fits the convex of the panel 1.■ Screw sequence for mounting the batteryterminal block to the chassis.Attach the battery terminal block to the chassis asdescribed in the following procedure.1. Loosely fix the hexagon screws of the GND terminal tothe chassis (enough so that the hexagon screws do notmove).21Top packingHardware fixture1Volume torque-up packingGND terminalTwo screws24 53617