Yaesu_FT-897D_维修电器原理图手册

Modification SheetYaesu FT-897last modified:27.Dez.200421.25.0Directoryntr0 ducti0n.…“2Some background informations about the FT-897 mods....3FT-897FT-857..3AGC.3............................................................................................................3ALC a udio pumping..........................5Exciter Stage Protection....................6Proper BIAS-adjustment...7Replacing the stock MURATA filter.....8Using an Electret capsule.......8Battery modification from W4CNG........................8Service Menu Settings...................9Freeband Mod....9Programming Software................................10fT-897 won't Power ON...................10Modifications overview..................12X12R..13Miscellaneous........................13Mods Summary View .......................14Mods -Detail View.....................18Disclaimer.Disclaimer of lia bility ..................24Copyright.....24©12/2004Jochen Heilemann,DG2IAQPh0ne:+49(0)7233972340Jochen HeilemannP.0.B0×1106FaX日+49(0)7233972341All rights reserved.D-75218 Niefern-Oschelbronn Germanye-Mail:do2iaqeweb de