hp_8902a_serv维修手册含电器原理图ice_-vol-2

Model 8902A08902-90031V2Volume 2 Table of ContentsVOLUME 2 TABLE OF CONTENTSService Sheet 1-A53 RF Power Assembly (Sensor Input Circuits)......··.·..8F-1Service Sheet2-A53 RF Power Assembly(Control Circuits),,,,···,,,,,·.,·,,,,,··,,8F-9Service Sheet 3-A32 Power Reference Oscillator Assembly ..8F-15Service Sheet 4-A15 RF Input Control,A16 RF Detector,A70 Amplifier/Switch8F-17Service Sheet 5-A17 Input Mixer and A18 IF Amplifier Assemblies...............8F-27Service Sheet 6-A55 IF Amplifier/Filter Assembly.....................8F-37Service Sheet 7-A54 IF Synchronous Detector Assembly48F-43Service Sheet 8-A6 AM Demodulator Assembly (ALC Loop)8F-53Service Sheet 9-A6 AM Demodulator Assembly (Control Circuits)8F-63Service Sheet 10-A4 FM Demodulator Assembly (Limiters)...8F-67Service Sheet 11-A4 FM Demodulator Assembly (Discriminator)8F-69Service Sheet 12-A2 Audio Filters Assembly .............8F-75Service Sheet 13-A3 Audio De-emphasis and Output Assembly8F-81Service Sheet 14-A5 Voltmeter Assembly (Audio Detectors)....48F-89Service Sheet 15-A5 Voltmeter Assembly (Voltmeter).........8F-97Service Sheet 16-A52 Audio Counter and Distortion Analyzer Assembly8F-103Service Sheet 17-A19 LO Divider Assembly.................8F-111Service Sheet 18-A23 Sampler and A24 High Frequency VCO Assemblies8F-117Service Sheet 19-A22 Low Frequency VCXO and A21 Low Frequency VCXO8F-129Filter AssembliesService Sheet 20-A20 LO Control Assembly (Analog Circuits)(2305A to 2530A)8F-133Service Sheet 20-A20 LO Control Assembly (Analog Circuits)(2535A and Above)8F-139Service Sheet21-A20L0 Control Assembly(Digital Circuits)(2305Ato2530A),·.,······8F-145Service Sheet 21-A20 LO Control Assembly (Digital Circuits)(2535A and Above)8F-149Service Sheet22-Al1 Counter Assembly(Time Base),..,.,.·.·,.,·.··.,,,·····8F-153Service Sheet 23-A11 Counter Assembly (Counter)....8F-157Service Sheet 24-A13 Controller Assembly........8F-167Service Sheet 25-A1 Keyboard Assembly (Keyboard)8F-177Service Sheet 26-A1 Keyboard Assembly (Displays)8F-183Service Sheet 27-A1 Keyboard and Display Assembly (Annunciators)...8F-187Service Sheet28-Al4 Remote Interface Assembly...,.,.,,,,,,,·,·,·.·,·······8F-191Service Sheet 29-A51 FM Calibrator Assembly8F-207Service Sheet 30-A50 AM Calibrator Assembly .8F-215Service Sheet31-Ai0 Power Supply Regulators,A26 Power Supply Motherboard,··········8F-223and A29 Series Regulator Heat Sink AssembliesService Sheet32-Ai0 Power Supply Regulators,.A26 Power Supply,.,·.···.,,..,,.·,·8F-227and A29 Series Regulator Heat Sink AssembliesService Sheet 33-A72 IF Channel Filter Assembly (Option Series 030)....8F-231Service Sheet 34-A71 IF Amplifier Detector Assembly (Option Series 030).........8F-234