hp_8902a_serv维修手册含电器原理图ice_notes

SERVICE NOTESINDEXService NotePrefix BreakDescription8902A-12616A BelowIntermittent lock up and HPIB hangup8902A-22411A BelowRF power calibration error8902A-22305Ato2523AError 068902A-3B902A-48902A-52741A BelowSet reference error8902A-68902A-72621Ato2751AAutomatic tuning anomaly8902A-82834A02050toMod to correct defective cable...affects aaten,RF2834A02125switch,amplifier8902A-92305Ato2834AMod to use keyboard and display in older inst.2834A01917to8902A102920A02293Intermittent lock up at power on8902A-112920A02415to3001A02534HPIB hang up8902A-123028A02567to3028A02698Recommended firmware replacement8902A-133028A02569to3112A02794TRFL cal factor anomaly8902A-143122A02709toTRFL problem using Track-Mode tuning3122A0298408901-60287All SerialsService Accessory Kit