User manual FISHMAN PREFIX PRO SERIES PREAMP INSTALLATION GUIDE

[. . . ] PREFIX PRO SERIES PREAMP INSTALLATION GUIDE www. fishman. com Read Me First! Installation of this product is a simple procedure, but we recommend this job only if you are an experienced repair technician. Requirements Saddle slot Minimum saddle slot length: 2. 775" (70. 4mm) Maximum E to E spacing at saddle: 2. 5" (63. 5mm) The Prefix Pro Series preamp will only fit in guitars with a clearance of at least 1 11/16" (42. 86mm) between the top and back braces, at the point where the preamp chassis swings inside the instrument. This path is defined as a 1 5/8" radius, with the hinge point on the bezel being the center of the circle. 1. [. . . ] Attach the enclosed cutout template at the desired location and cut out the cavity for the preamp. Drill the preamp mounting holes with a #45 drill (. 082" / 2. 08mm). PREAMP Output cable / endpin jack wiring Important note: To ensure full pivot action for the preamp, remember to leave an extra 3" (76. 2mm) of slack when you decide the output cable's final length. Determine the proper length for the cable, then, if necessary, strip and tin the output wires. To gain better access to the terminals on the endpin jack, gently bend back the Strain Relief/ Sleeve tab before you begin to solder. Jack connections · Red wire to Tip (short terminal) · Black wire to Switch (longest terminal) · Shield wire to Sleeve (strain relief) · Ring is not connected (middle terminal) Black Wire to Switch Installation Preliminary 1. Widen the endpin hole to 15/32" (11. 9mm) to accommodate the endpin jack. Drill a /32" hole (2. 4mm) in the saddle slot for the pickup wire, no less than . 100" (2. 5mm) from the nearest string. Cut out the preamp cavity Please note: For instruments with solid wood sides (especially maple), we strongly recommend that you glue 2. 5" (63. 5mm) x . 5" (12. 7mm) plywood patches in the areas inside the guitar where the screw holes will be drilled. Doing so will prevent the area around the mounting holes from cracking or splintering and will strengthen the side of the instrument at the cutout. 3 Shield to Sleeve Red Wire to Tip 1 Endpin jack Install the endpin jack per Switchjack Installation Guide. Carefully pull back the foil shield on the preamp (located next to the output cable) to expose the terminal block. 3. [. . . ] Angle the preamp 90° from the bezel and insert it in the cut-out, then fasten the preamp bezel using the four self-tapping screws and the two plastic backing plates. FOIL SHIELD Self-Tapping Screws Soundboard TERMINAL BLOCK SCREWS Plastic Backing Brackets Complete the installation Install a 9V alkaline battery. PICKUP WIRE ENTRY GROUND WIRE SIGNAL WIRE To keep the wires inside the guitar from rattling, secure them with the included adhesive backed clips. Attach the wire guide clips to the side of the instrument. www. fishman. com 514-300-115 Rev A 5-09 [. . . ]