Hp Work Light 85660B Users Manual Spectrum Analyzer RF Section

2015-02-09

• Back to Main Menu
• Title Page
  • Certification
  • Warranty
  • Assistance
  • Safety Symbols
  • General Safety Considerations
• Table of Contents
  • Volume1
  • Volume2
• General Information
  • Introduction
  • Instruments Covered by This Manual
  • Service Sheets
  • Replacement Procedures
  • Major Assembly and Component Locations
  • Troubleshooting
  • Printed Circuit Board Edge Connector Contact Cleaning
  • HP-IB Address Selection
  • Storage and Shipment
  • Figure 4. Schematic and Block Diagram Format
  • Schematic Symbols for Digital Integrated Circuits
• Overall Troubleshooting
  • Special Messages
  • Diagnostic Functions
    • Frequency Diagnostics
    • Lock Indicator Disable A12TP2 Jumpered to A12TP3
    • Trace Detection
  • Error Correction Routine
  • Sweep System Block Diagram Description
    • Continuous Sweep; Free Run Trigger
    • Triggered sweep
    • Single sweep
    • Fast Sweep
    • Service Requests
  • Sweep Systems Troubleshooting
    • Isolate the Scan Sweep
    • Isolate Digital Storage Processor Section If HSWP Stays High (SWEEP LED ON)
    • See A3A1 Trigger Troubleshooting
    • Figure 4. Sweep System Block Diagram
  • Spectrum Analyzer Overall Block Diagram (1 of 3)
  • Spectrum Analyzer Overall Block Diagram (2 of 3)
  • Spectrum Analyzer Overall Block Diagram (3 of 3)
• Analog Troubleshooting
  • Phase Lock Loops Principles of Operation
    • General Description
    • Reference Loop (Part of A7)
    • M/N Loop (Part of A7)
    • YTD Loop (A11)
    • 20/30 Loop (A10)
    • Heterodyne Loop (Part of A6)
  • Troubleshooting Information
  • Start Frequency Tuning Equations and Phase Lock Troubleshooting
    • General
    • M/N Loop Tuning
    • 20/30 Synthesizer Tuning
    • Marker Mode
    • Phase Lock Loop Troubleshooting
  • Simplified RF Block Diagram
• Digital Troubleshooting
  • Preliminary Checks
    • Instrument Preset Checks
    • 'LONG POP" Instrument Preset Check
    • Digital Storage Verification
  • RF Digital Troubleshooting, Block Diagram
• A5
  • A5 Front Panel, Circuit Description
    • A5A1 Keyboard
    • Keyboard Switches
    • Indicator LEDs
    • A5A2 Rotary Pulse Generator
    • LINE Power Switch
    • Front Panel Removal and Repair
    • A5A1 Keyboard Component Locations, 85660-60210
    • A5 Front Panel, Schematic Diagram
• A6
  • A6 RF Module Replacement
    • Removal
    • Installation
  • A6A1 Coaxial Switch and A6A17 300 MHz BPF Replacement
  • A6A2 RF Attenuator Replacement
    • Removal
    • Installation
  • A6A4 Second Converter Replacement
    • Removal
    • Installation
  • A6A6 First Converter Replacement
    • Removal
    • Installation
  • A6A15 3.6 GHz BPF, A6A16 LPF, and A6A18 LPF Replacement
    • Removal
    • Installation
  • A6 RF Module, Troubleshooting Block Diagram
• A6A3
  • A6A3 Last Converter, Circuit Description
    • Power Supplies
    • 321.4 MHz Amplifier
    • 321.4 MHz Bandpass Filter
    • 321.4 to 21.4 MHz Converter
    • 24.4 MHz Preamplifier
    • Slope Attenuator
    • Step Gain Amplifier 1 and Step Gain Amplifier 2
    • Amplitude Calibration Attenuator
    • 21.4 MHz Output
    • Temperature Compensation Voltage Source
  • A6A3 Last Converter Replacement
    • Removal
    • Installation
    • A6A3A1 Last Board Component Locations, 85660-60002
    • A6A3 Last Converter, Block Diagram
    • A6A3 Last Converter, Schematic Diagram
• A6A7/A6A5/A6A8
  • A6A7 YIG-Tuned Mixer (YTX) Current Driver, Circuit Description
    • YTX Drive Output
    • Filter Capacitor Drive
    • YTX Heater Control
  • A6A8 YIG-Tuned Mixer (YTX), A6A5 Amplifier/Coupler/Load Unit (ACLU), Circuit Description
    • Handling the YIG Tuned Mixer
  • A6A5 Amplifier/Coupler/Load Unit (ACLU) Replacement
    • Removal
    • Installation
  • A6A7 YTX Current Driver Replacement
    • Removal
    • Installation
  • A6A8 YTX Replacement
    • Removal
    • Installation
  • A6A7 YTX Current Driver, Block Diagram
  • A6A7 YTX Current Driver Component Locations, 85660-60128
  • A6A7 YIG-Tuned Mixer (YTX) Current Driver, Schematic Diagram
• A6A9
  • A6A9 Phase Lock, Circuit Description
    • 100 MHz Buffer Amplifier
    • Driver
    • 100 MHz Calibrator
    • Tripler
    • 300 MHz Power Amplifier
    • Sampler Driver
    • Sampler and Loop Integrator
    • Aided Acquisition and Unlock Detector
  • A6A9A1 Phase Lock Board Component Locations, 85660-60202
  • A6A9A1 Phase Lock Board Component Locations,85660-60253
  • A6A9 Phase Lock, Block Diagram
  • A6A9 Phase Lock,Schematic Diagram
  • A6A9 Phase Lock, Schematic Diagram
• A6A10
  • A6A10 Miscellaneous Bias/Relay Driver, Circuit Description
    • YTX Diode Bias
    • YTX Linearity Correction
    • PIN Switch Driver
    • 3.3 GHz Oscillator Driver
    • RF Switch Driver
    • Band Step Gains
    • RF Attenuator Driver
    • Power Down
    • +22 V Delay
  • A6A10 Miscellaneous Bias/Relay Driver, Block Diagram
  • A6A10 Miscellaneous Bias/Relay Driver Component Locations,85660-60180
  • A6A10 Miscellaneous Bias/Relay Driver Component Locations85660-60322
  • A6A10 Miscellaneous Bias/Relay Driver,Schematic Diagram
  • A6A10 Miscellaneous Bias/Relay Driver, Schematic Diagram
• A6A11
  • A6A11 Slope Generator,Circuit Description
    • Bandswitch and Attenuator Decode
    • Preselector Peak
    • Hysteresis, Sample-Hold Control, and Filter Capacitor
    • Slope Offset
    • Slope Breakpoint Generator
    • Upper Segment Generator and Lower Segment Generator
    • Slope Output
  • A6A11 Slope Generator, Block Diagram
  • A6A11 Slope Generator Component Locations, 85660-60126, 85660-60238
  • A6A11 Slope Generator, Schematic Diagram
  • A6A11 Slope Generator, Schematic Diagram
• A6A12
  • A6A12 YIG-Tuned Mixer (YTX) Driver, Circuit Description
    • Input Differential Amplifier
    • Bandswitch
    • Sample and Hold
    • IF Offsets
    • Sweep + Tune
    • YTX Drive Output
    • Delay Compensation
    • +9 V and -9 V Reference Supplies
  • A6A12 YTX Driver Component Locations, 85660-60366, 85660-60013, 85660-60235
  • A6A12 YTX Driver, Block Diagram
  • A6A12 YIG-Tuned Mixer (YTX) Driver, Schematic Diagram
  • A6A12 YTX Driver, Schematic Diagram
  • A6A12 YTX Driver, Schematic Diagram
  • A6A13 RF Module Motherboard Component Locations, 85660-60014
  • A6A13 RF Module Motherboard, Interconnect Diagram
• A7
  • A7 M/N Reference, Troubleshooting
    • Reference
    • M/N Loop
  • A7 M/N Reference Replacement
    • Removal
  • A7 M/N Reference, Block Diagram
• A7A1
  • A7A1 Reference Phase Detector, Circuit Description
    • Limiting Amplifier
    • Pulse Generator
    • Phase Lock Sampler
    • Integrating Amplifier
    • VCXO Divider and Buffers
    • 45 Phase Lead and Buffer Amplifier and 45 Phase Lag and Buffer Amplifier
    • Lock Indicator Sampler
    • Phase Lock Detector
  • A7A1 Reference Phase Detector, Troubleshooting
    • Samplers
    • 45 Phase Lead Amplifier and 45 Phase Lag Amplifier
    • Limiting Amplifier
    • Pulse Generator
    • Buffer Amplifier
    • Integrating Amplifier
    • Phase Lock Detector
  • A7A1 Reference Phase Detector Component Locations, 85660-60015
  • A7A1 Reference Phase Detector, Block Diagram
  • A7A1 Reference Phase Detector, Schematic Diagram
• A7A2
  • A7A2 100 MHz Voltage-Controlled Crystals Oscillator (YCXO),Circuit Description
    • 100 MHz Oscillator
    • 100 MHz Buffer Amplifier
    • Quadrupler
    • 400 MHz Amplifier
  • A7A2 100 MHz VCXO, Troubleshooting
    • 100 MHz Oscillator
    • 100 MHz Buffer/Amplifier
    • Quadrupler and 400 MHz Amplifier
  • A7A2 100 MHz VCXO Component Locations, 85660-60135
  • A7A2 100 MHz VCXO, Block Diagram
  • A7A2 100 MHz VCXO, Schematic Diagram
• A7A3
  • A7A3 M/N Phase Detector, Circuit Description
    • TTL--> ECL Level Translators
    • N Divider and M Divider
    • Mixer
    • IF Amplifier
    • Phase/Frequency Detector
    • Preamplifier
    • Phase Lock Indicator
  • A7A3 M/N Phase Detector, Troubleshooting
    • M Divider and N Divider
    • Mixer and IF Amplifier
  • A7A3 M/N Phase Detector Component Locations, 85660-60136
  • A7A3 M/N Phase Detector
  • A7A3 M/N Phase Detector, Schematic Diagram
• A7A4
  • A7A4 M/N Output, Circuit Description
    • LO Output Amplifier
    • Divide By 2
    • Loop Amplifier
    • Voltage-Controlled Oscillator
    • Buffer Amplifier
    • LO Amplifier
    • M/N Output Amplifier
  • A7A4 M/N Output, Troubleshooting
    • Loop Amplifier
    • Voltage-Controlled Oscillator (VCO) and Buffer Amplifier
    • LO Output Amplifier
    • LO Amplifier and M/N Output Amplifier
  • A7A4A1A2 M/N VCO Board Component Locations, 85660-60018
  • A7A4A2 M/N Output Board Component Locations, 85660-60192
  • A7A4A2 M/N Output Board Component Locations, 85660-60239
  • A7A4A2 M/N Output Board Component Locations, 85660-60266
  • A7A4 M/N Output, Block Diagram
  • A7A4 M/N Output, Schematic Diagram
  • A7A4 M/N Output, Schematic Diagram
  • A7A5 Reference Motherboard Component Locations, 85660-20020
  • A7A5 M/N-Reference Motherboard, Interconnect Diagram
  • A7A5 M/N-Reference Motherboard,Interconnect Diagram
• A8/A9
  • A8 Rectifier, Circuit Description
    • RF Section Internal Fuse Replacement
    • Transformer Replacement
    • Power Transistor Replacement (Rear RF Cover Removal)
  • A8 Rectifier Component Locations, 85660-60196
  • A8 Rectifier, Schematic Diagram and A23 Motherboard Power Distribution Diagram
• A10
  • A10 20/30 Synthesizer, Block Diagram
• A10A1
  • A10A1 Phase Lock Loop (PLL1) Voltage-Controlled Oscillator (VCO), Circuit Description
    • Loop Amplifier
    • Gain Switch
    • 200 to 300 MHz VCO and Output Amplifier
    • Output Switch
    • Divide By 10
  • A10A1 PLL1 VCO Component Locations, 85660-60131
  • A10A1 PLL1 VCO, Schematic Diagram
• A10A2
  • A10A2 Phase Lock Loop 1 (PLL1) Divider, Circuit Description
    • Divide by 2
    • Input Latch
    • Divide by N
    • Fractional Divide
    • Phase/Frequency Detector
    • Reference Divide by 2
    • Phase Lock Indicator
  • A10A2 PLL1 Divider Component Locations, 85660-60023
  • A10A2 PLL1 Divider, Schematic Diagram
• A10A3
  • A10A3 Phase Lock Loop 1 (PLL1) IF, Circuit Description
    • LO Amplifier
    • Mixer
    • IF Input Amplifier
    • 140 MHz Low-Pass Filter
    • IF Output Amplifier
  • A10A3 PLL1 IF Component Locations, 85660-60024
  • A10A3 PLL1 IF, Schematic Diagram
• A10A4
  • A10A4 Phase Lock Loop 3 (PLL3) Up Converter, Circuit Description
    • Frequency Multiplier x 1.6
    • 160 to 166 MHz VCO
    • Mixer
    • IF Amplifier
    • Loop Amplifier
    • Phase/Frequency Detector
    • Phase Lock Indicator
  • A10A4 PLL3 Up Converter Component Locations, 85660-90025
  • A10A4 PLL3 UP Converter Schematic Diagram
• A10A5
  • A10A5 phase Lock Loop 2 (PLL2) Voltage Controlled Oscillator (VCC), Circuit Description
    • 75 to 150 MHz VCO
    • Bias Network/50 kHz Low-Pass Filter
    • 75 to 150 MHz Output Buffer
    • Frequency Dividers
    • Small Span Switch
    • 0.1 to 5 MHz Span Switch
  • A10A5 PLL2 VCO Component Locations, 85660-60168
  • A10A5 PLL2 VCO, Schematic Diagram
• A10A6
  • A10A6 Phase Lock Loop 2 (PLL2) Phase Detector, Circuit Description
    • Phase-Frequency Detector
    • Unlock Indicator
    • Analog Integrator-Sample and Hold
    • Digital Integrator
    • Output Amplifier
  • A10A6 PLL2 Phase Detector Component Locations, 85660-60130, 85660-60229
  • A10A6 PLL2 Phase Detector Component Locations, 85660-60254
  • A10A6 PLL2 Phase Detector Component Locations, 85660-60276
  • A10A6 PLL2 Phase Detector, Schematic Diagram
  • A10A6 PLL2 Phase Detector, Schematic Diagram
  • A10A6 PLL2 Phase Detector, Schematic Diagram
• A10A7
  • A10A7 Phase Lock Loop 2 (PLL2) Divider, Circuit Description
    • Reference Divider
    • Prescaler
    • Latches
    • Direct Divide
    • Synchronizer
    • Integer Counter
    • Fractional Counter
  • A10A7 PLL2 Divider Component Locations, 85660-60028
  • A10A7 PLL2 Divider, Schematic Diagram
• A10A8
  • A10A8 Phase Lock Loop 2 (PLL2) Discriminator, Circuit Description
    • Pulse Generator
    • -7 V Reference Supply
    • Current Source
    • Summing Amplifier
    • Pretune
    • Scan Attenuator
    • Output Current Source
  • A10A8 PLL2 Disriminator Component Location, 85660-60176
  • A10A8 PLL2 Discriminator, Schematic Diagram
• A11
  • A11 YTO Loop and A11A3 YTO Replacement
    • A11 YTO Loop, Block Diagram
    • A11A2 YTO Loop Interconnect Component Locations, 85660-60123
    • A11A2 YTO Loop Interconnect, Interconnect Diagram
• A11A4
  • A11A4 YIG-Tuned Oscillator (YTO) Phase Detector, Circuit Description
    • 70 MHz LPF
    • Limiters and Divide by Twos
    • Phase/Frequency Detector and 1.5 MHz LPF
    • Differential Amplifier
    • Loop Gain Switch
    • Integrator #1
    • Integrator #2
    • Sample and Hold
    • Unlock Detector
  • A11A4 YTO Phase Detector, Block Diagram
  • A11A4 YTO Phase Detector Component Locations, 85660-60175
  • A11A4 YTO Phase Detector, Schematic Diagram
• A11A5
  • A11A5 Sampler, Circuit Description
    • Sampler Drive Amplifier
    • Sampler A11U1
    • IF Preamplifier
    • Buffer Amplifier and 70 MHz LPF
    • Gain Adjust
    • Output Amplifier
  • A11A5 Sampler, Block Diagram
  • A11A5 Sampler Component Locations, 85660-60199
  • A11A5 Sampler,Schematic Diagram
• A12
  • A12 Front-Panel Interface, Circuit Description
    • Keyboard Matrix
    • Oven Cold Sensor
    • Rotary Pulse Generator (RPG) Control
    • Service Request
    • M/N Storage
    • Address Decoder
    • Attenuator Correction Rom
    • Control Lines
    • Options
  • A12 Front-Panel Interface Extender Board, Schematic Diagram
  • A23 Motherboard Instrument Bus, Interconnect Diagram
  • A12 Front-Panel Interface, Schematic Diagram
  • A12 Front-Panel Interface, Schematic Diagram
  • A12 Front-Panel Interface Component Locations, 85660-60211, 85660-60246, 85660-60290
  • A12 Front-Panel Interface, Schematic Diagram
  • A12 Front-Panel Interface, Schematic Diagram
• A15
  • A15 Controller,Circuit Description
    • HP-IB Address Switch
    • HP-IB Signal Ground (A25)
    • Firmware
  • A15 Controller,Troubleshooting
    • Level 1Self Test
    • Front Panel INSTR CHECK I and II LEDs
    • A15 Controller Self Test
    • Level 2 Manual Tests
  • A15 Controller, Block Diagram
  • A15 Controller Board Assembly, Component Locations: 85660-60209
  • A15 Controller, Component Locations, 85660-60245
  • A23 Motherboard Instrument Bus, Interconnect Diagram
  • A15 Controller, Schematic Diagram (1 of 3)
  • A15 Controller, Schematic Diagram (2 of 3)
  • A15 Controller, Schematic Diagram (3 of 3)
  • A15 Controller, Schematic Diagram (1 of 3)
  • A15 Controller, Schematic Diagram (2 of 3)
  • A15 Controller, Schematic Diagram (3 of 3)
• A16
  • A16 Scan Generator, Circuit Description
    • Scan Time Register and Sweep Time DAC
    • Ramp Generator
    • Ramp Control Logic, Switch Driver, Ramp Reset Switch, and Ramp Reset Amplifier
    • Frequency Span Register and Span Width DAC
    • Integer Number Attenuator, Band Decoder, Switch Drivers
    • Aux Out Register, Aux Out Offset DAC, and Aux Out Amplifier
    • Voltage Reference
    • Scan Test Circuit
    • Scan Reset Amplifier
  • A16 Scan Generator, Simplified Block Diagram
  • A16 Scan Generator, Block Diagram (1 of 2)
  • A16 Scan Generator, Block Diagram (2 of 2)
  • A16 Scan Generator Board Assembly, Component Location
  • A16 Scan Generator Board Assembly, Component Locations
  • A16 Scan Generator, Schematic Diagram
  • A16 Scan Generator, Schematic Diagram
  • A16 Scan Generator, Schematic Diagram
  • A16 Scan Generator, Schematic Diagram
• A17
  • A17 Positive Regulator, Circuit Description
    • Front-Panel Shutdown
    • Thermal Shutdown
    • +20 V Register
    • +20 V Switched Supply
    • +12 V Regulator
    • +5.2 V Regulator
    • Power Up/Down Detector
    • RF Section Internal Fuse Replacement
  • A17 Positive Regulator Component Locations, 85660-60174
  • A17 Positive Regulator Component Locations, 85660-60275
  • A17 Positive Regulator Component Locations, 85660-60323
  • A17 Positive Regulator, Schematic Diagram
• A18
  • A18 Negative Regulator, Circuit Description
    • -10 V Regulator
    • -5.2 V Regulator
    • -40 V Regulator
    • RF Section Internal Fuse Replacement
  • A18 Negative Regulator Component Locations, 85660-60137
  • A18 Negative Regulator Component Locations, 85660-60289
  • A18 Negative Regulator, Schematic Diagram
• A19
  • A19 Digital-to-Analog Converter (DAC), Circuit Description
    • YTO Pretune Register and Pretune DAC
    • Frequency Span Register and Switch Driver and Span Scaling
    • Summing Amplifier
    • Negative Voltage Reference and Positive Voltage Reference
  • A19 Digital-to-Analog Converter, Block Diagram
  • A19 Digital-to-Analog Converter Component Locations, 85660-60212
  • A19 Digital-to-Analog Converter, Schematic Diagram
• A20
  • A20 Main Coil Driver, Circuit Description
    • Input Amplifier
    • Phase Lock Amplifier
    • Coil Driver
    • Shaping Network
    • Offset Reference
  • A20 Main Coil Driver, Block Diagram
  • A20 Main Coil Driver Component Locations, 85660-60206
  • A20 Main Coil Driver, Schematic Diagram
• A21
  • A21 FM Coil Driver, Circuit Description
    • Phase Detector Buffer
    • 100 Hz High-Pass Filter/Amplifier
    • Bias Stabilization
    • Output Amplifier
    • Matching Network
  • A21 FM Coil Driver, Block Diagram
  • A21 FM Coil Driver Component Locations, 85660-60040
  • A21 FM Coil Driver,Schematic Diagram
• A22
  • A22 10 MHz Frequency Standard
    • A22 10 MHz Frequency Standard Replacement
    • A22A1 Frequency Standard Regulator Component Locations, 5062-1909, 5062-4837
    • A22 10 MHz Frequency Standard Regulator, Schematic Diagram
    • A23 Motherboard Component Locations, 85660-60041
    • A23 Motherboard Component Locations, 85660-60368
    • A23 Motherboard Instrument Bus, Interconnect Diagram
    • A23 Motherboard, Interconnect Diagram
    • A23 Motherboard, Interconnect Diagram
• General Parts Listing
  • Introduction
  • General Parts List Format
  • Ordering Information
  • Direct Mail-Order System
  • Direct Phone-Order System
• Major Assembly and Component Locations
  • Major Assembly and Component Locations, Bottom View
  • Major Assembly and Component Locations, Top and Front Views
  • Major Assembly and Component Locations, Top View