User manual HARBACH ELECTRONICS FB-220

[. . . ] FB-220 FILTER CAPACITOR BLOCK INSTALLATION INSTRUCTIONS PART S SUPPLIED WITH T HIS KIT : (1) FB -220 Filter Capacitor Block Assem bly To start the installation, read these instructions very carefully. Now unplug the am plifier and remove any input, output and control cables that may be connected to the back of the amplifier. [. . . ] Unsolder the 3 wires attached to the old capacitor bank. There is a BLACK wire from the rectifier board, a BLUE wire also from the rectifier board and a RED & YELLOW wire from the HV transform er. Remove the (4) 6-32 nuts and washers securing the capac itor bank bracket. Now lift the bracket up about ½". Remove the 8 capacitors and the nylon spacers. This task can be made easier by cutting som e of the wires between the capacitors (they are no longer needed). Slip the replacement capacitor bank into the cavity vacated by the old capacitor bank with the solder lugs toward the front panel. Make sure that you fully slide the block to the rear of the cavity. Now, slide the assembly approximately 1/16" out of the cavity. Press down on the capacitor bank bracket and reinstall the (4) 6-32 nuts and washers. Depending on the tolerances of the bracket, you may have to leave off the washers. Solder the 3 wires you removed earlier; The BLUE to the bottom solder lug, the RED & YELLOW to the middle lug and the BLACK to the top lug. [. . . ] It will provide you with a better power supply that provides the necessary B+ filtering and regulation. Your am plifier should not experience any filtering problems in the future. HARBACH ELECTRONICS Jeff Weinberg ­ W8CQ 468 County Road 620 Polk, OH 44866-9711 (419) 945-2359 http://www. harbachelectronics. com info@harbachelectronics. com 2 [. . . ]