Manuals / HP / Kitchen Appliance / Water Dispenser

HP 181A manual Bottom View for Cover Removal

Models: 181A

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Page 153

Chapter 3 Replacing Assemblies

To Remove the Cover

3Remove the screw (H1) located at the bottom near the rear of the cover (MP3) as shown in Figure 3-2.

RS 232-

			Hold
Osc	turnduring		Recall
Adjust	turnduring		To
	.on-	Configure:

OvenHS010

Talk

Only

IB-HP

OvenMS001

OPTIONS

ISM

A-1

H1

Arm

Ext

	In
10	Ref
MHz
Out
!	3
2

AC

LINE:

MP3

92

Figure 3-2. Bottom View for Cover Removal

4With one hand gripping the front bezel, pull the cover off with the other hand by sliding the cover backward.

3

Assembly-Level Service Guide

3-5

Image 153

HP 181A manual Bottom View for Cover Removal

Contents

HP 53131A/132A/181A 225 MHz Counter Page Assembly-Level Service Guide Safety Considerations contd Contents Test 2 Trigger Level HP 53131A/132A Only Test 5 Option 030/050/124 Channel 3 Frequency Test 2 Channel 1 Frequency Sensitivity HP 53181A Service About the HP 53181A Calibration Menu Replacing Assemblies Retrofitting Options Index Contents Xii Assembly-Level Service Guide How to Use This Guide Repair StrategyInstrument Identification Instruments Covered by this Guide Assembly-Level Service Guide OrganizationHow to Order Guides Description of the 225 MHz Counters Assembly-Level Service Guide Xvii Hardware OptionsAccessories Supplied Accessories Supplied and AvailableAccessories Available SupportPreface Performance Tests Introduction Operational VerificationIntroduction Optional HP-IB Verification Complete Performance TestsRecommended Calibration Cycle Test RecordEquipment Required Equipment RequiredRecommended Test Equipment Power-On Self Tests HP 53131A/132A/181A Operational VerificationHP 53131A/132A/181A Operational Verification Counter HP 53131A/132AHP 53131A/132A/181A Operational Verification HP 53181A 1B. Operational Verification Setup for HP 53181ATermination Check Run Self TestCounter HP 3458A Digital MultimeterPress Channel 1 50Ω/1MΩ key Counter Setup External Arm Test HP 53131A/132A OnlyEquipment Synthesized Signal Generator ProcedureHP 8130A Pulse Generator HP 8663AExternal Timebase Tests MHz External Timebase Input HP 53131A and HP 53181A Only HP 3325B Synthesizer #1HP 3325B Synthesizer #2 Counter MHz External Timebase Input HP 53131A and HP 53181A Only MHz External Timebase Input for the HP 53132A HP 53131A/132A Complete Performance Tests HP 53131A/132A Complete Performance TestsHP 53131A/132A Performance Tests Test 1 Time Interval HP 53131A/132A Only Counter SetupEquipment Test 1 Time Interval HP 53131A/132A OnlyHP 8130A HP53131A/132Pulse Generator Counter ProcedureTest 2 Trigger Level HP 53131A/132A Only Test 2 Trigger Level HP 53131A/132A OnlyHP 3325B HP 53131A/132A Synthesizer Counter Trigger Level Test SetupThis is the trigger level it should be 0.0 V ±15 mV Equipment KHz to 100 MHz Sensitivity for HP 53131A/132A Counter HP 8663A Synthesized Signal GeneratorHP 53131A/132A Ref. HP 8663A SynthesizedPerformance Tests MHz to 200 MHz Sensitivity for HP 53131A/132A MHz to 225 MHz Sensitivity for HP 53131A/132A Equipment HP 53131A/132A Counter Channels 1 and 2 Frequency Accuracy Test SetupPerformance Tests Equipment HP 8663A Synthesized Signal Generator HP 53131A/132A CounterSweep Oscillator To 3.0 GHz Sensitivity for Option 030 only Sweep the frequencies from 200 MHz to 5.0 GHz Sweep the frequencies from 200 MHz to 12.4 GHz Gate & ExtArm, Time Time 1.000 s On the Counter, press Run key Test 7 Peak Volts, Channels 1 and 2 HP 53131A/132A Only Test 7 Peak Volts, Channels 1 and 2 HP 53131A/132A OnlyHP 3325B HP 53131A/132ASynthesizer Counter Volt PeakVolt Peak HP 53131A/132A HP-IB Verification Program Optional HP 53131A/132A HP-IB Verification Program OptionalHP 53131A/132A Performance Test Record Page 1 HP 53131A/132A Performance Test Record Page 1HP 53131A/132A Performance Test Record Page 2 HP 53131A/132A Performance Test Record Page 2HP 53131A/132A Performance Test Record Page 3 HP 53131A/132A Performance Test Record Page 3HP 53131A/132A Performance Test Record Page 4 HP 53131A/132A Performance Test Record Page 4HP 53131A/132A Performance Test Record Page 5 HP 53131A/132A Performance Test Record Page 5HP 53131A/132A Performance Test Record Page 6 HP 53131A/132A Performance Test Record Page 6HP 53181A Complete Performance Tests HP 53181A Complete Performance TestsHP 53181A Performance Tests Test 1 Trigger Level HP 53181A Only Test 1 Trigger Level HP 53181A OnlyHP 3325B HP 53181ASynthesizer Counter 11. Trigger Level Test SetupThis is the trigger level it should be 0.0 V ±15 mV Test 2 Channel 1 Frequency Sensitivity HP 53181A Only Test 2 Channel 1 Frequency Sensitivity HP 53181A OnlyKHz to 100 MHz Sensitivity for HP 53181A 12. Channels 1 Frequency Sensitivity Test SetupTest 2 Channel 1 Frequency Sensitivity HP 53181A Only MHz to 225 MHz Sensitivity for HP 53181A MHz to 200 MHz Sensitivity for HP 53181ATest 3 Channel 1 Frequency Accuracy HP 53181A Only Test 3 Channel 1 Frequency Accuracy HP 53181A OnlyHP 8663A Synthesized Signal Generator HP 53181A CounterSweep Oscillator Test 3 Channel 1 Frequency Accuracy HP 53181A Only Equipment 14. Option 015/030/050 Channel 2 Frequency Test MHz to 1.5 GHz Sensitivity for Option 015 OnlyMHz to 2.7 GHz Sensitivity for Option 030 Only MHz to 5.0 GHz Sensitivity for Option 050 only MHz to 12.4 GHz Sensitivity for Option 124 only MHz to 1.5 GHz Accuracy Test for Option Connect equipment as shown in Figure Minimum to Maximum Accuracy Test for Options 030/050/124 Verify the HP 53181A Counter reads 100 MHz ±70 mHz Performance Tests Test 6 Peak Volts, Channel 1 HP 53181A Only Test 6 Peak Volts, Channel 1 HP 53181A Only16. Peak Volts Test Setup HP 53181A HP-IB Verification Program Optional HP 53181A HP-IB Verification Program OptionalHP 53181A Performance Test Record Page 1 HP 53181A Performance Test Record Page 1HP 53181A Performance Test Record Page 2 HP 53181A Performance Test Record Page 2HP 53181A Performance Test Record Page 3 HP 53181A Performance Test Record Page 3HP 53181A Performance Test Record Page 4 HP 53181A Performance Test Record Page 4Service Service Returning the Instrument to Hewlett-Packard for Service Returning the Instrument to Hewlett-Packard for ServiceTo Provide Repair Information To Pack in the Original Packaging Materials To Pack in the Commercially Available Materials About the HP 53131A/132A Calibration Menu Overview of the HP 53131A/132A Calibration MenuAbout the HP 53131A/132A Calibration Menu CAL Unsecure HP 53131A/132A Calibration Menu Tree Calibration proceduresTo View the Calibration Menu and Security Status To Unsecure for CalibrationTo Initiate the Calibration Routines Information about Calti QUIK? and Calti FINE? About the HP 53131A/132A Calibration Menu HP 59992A J06 Time Interval Calibrator HP 8130A HP 53131A/132A Pulse Generator CounterTo Change to a New Security Code To Secure Against CalibrationTo Get Help with the Calibration Menu To View the Calibration CountHP 53131A/132A Calibration Procedures HP 53131A/132A Calibration ProceduresFirst Determine the Counter Firmware Revision To Calibrate the Offset for Channels 1BAD Code HP 53131A/132A Calibration Procedures DC Power Supply HP 53131A/132A Counter To Calibrate the Gain for Channels 1Digital Multimeter Press Enter key again To Calibrate Time IntervalHP 8130A HP53131A/132A Pulse Generator Counter CAL TI QUIK? CalibrationHP 8130A Pulse Generator CAL TI FINE? CalibrationTI CAL Pass House Standard MHz Reference HP 53131A/132A Counter To Calibrate the Standard TimebaseMedium, High, or Ultra-High To Calibrate the High Stability Timebase OptionAbout the HP 53181A Calibration Menu Overview of the HP 53181A Calibration MenuAbout the HP 53181A Calibration Menu About the HP 53181A Calibration Menu HP 53181A Calibration Menu Tree Key to access this menuTo View the Calibration Menu and Security Status To Initiate the Calibration Routines To Change to New the Security Code HP 53181A Calibration Procedures HP 53181A Calibration ProceduresTo Calibrate the Offset for Channel BAD Code To Calibrate the Gain for Channel HP 53181A DC Power Supply Counter Digital MultimeterHouse Standard MHz Reference HP 53181A Counter To Calibrate the High Stability Timebase Option Pre-Troubleshooting Information Safety ConsiderationsPre-Troubleshooting Information Interruption is Prohibited Recommended Test EquipmentRepair Considerations Disassembly and Reassembly SpecificsElectrostatic Discharge Surface Mount RepairAfter Service Considerations Product Safety ChecksProduct Performance Checks HP 53131A Assembly Identification Assembly Identification and Location53132-60014 53131-69014 Assembly Name HP Part No Exchange Part A1 Motherboard Series 8A. Instrument Top Internal View 8B. Instrument Top Internal View Option Troubleshooting the Counter Power Supply CheckMotherboard Assembly A4 AC Power Supply Voltages Wire Color Voltage ToleranceOverview of the Self-Test Routines Test Diagnosing the Faulty Assembly by Using Self TestsTo Run the Test-All Self Test Test Loop to OFF To Run the Individual Self Tests11B. HP 53181A Self Test Troubleshooting Setup Failure Indicator Assembly at Fault TroubleshootingReplacing Assemblies Replacing Assemblies Tools Required Do This FirstTools Required Rear Bezel Removal To Remove the CoverBottom View for Cover Removal To Remove the Front Bezel To Remove the Front BezelFront Bezel Removal To Remove the Front Bezel To Remove A1 Motherboard Assembly To Remove A1 Motherboard AssemblyA1 Motherboard Assembly Removal To Remove the A2 Display Board, Keypads, and Window To Remove the A2 Display Board, Keypads, and WindowTo Remove the A2 Display Board, Keypads, and Window To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly Option Replacing Assemblies015/030/050/124 Optional Channel Input Assembly Removal To Remove A4 AC Power Supply Assembly To Remove A4 AC Power Supply Assembly10. Location of the Rubber Foot To Remove A5 DC Power Input Assembly Option To Remove A5 DC Power Input Assembly Option11. DC Power Input Assembly Option 002 Removal Remove the cover Remove A6 High Stability Timebase Assembly To Remove the Rear Terminals Option To Remove the Rear Terminals Option13. Rear Terminals Option 060 Removal To Remove the Rear Terminals Option To Remove the Rear Terminals Option Retrofitting Options Retrofitting Options Retrofitting Options Option 002 DC Power Input Assembly Parts To Retrofit A5 DC Power Input Assembly OptionPreliminary Procedure To Retrofit A5 DC Power Input Assembly Option1A. DC Power Input Assembly Retrofitting Retrofitting Procedure1B. DC Power Input Assembly Retrofitting To Retrofit A5 DC Power Input Assembly Option 1C. DC Power Input Assembly Retrofitting 1D. DC Power Input Assembly Retrofitting Dc-supply Option 001 Medium Stability Timebase Assembly Parts Option 010 High Stability Timebase Assembly PartsOption 012 Ultra-High Stability Timebase Assembly Parts Turn off the Counter and remove power cord Remove the cover High Stability Timebase Retrofitting Option 001, 010 To Retrofit the Rear Terminals Option Option 060 Rear Terminals PartsTo Retrofit the Rear Terminals Option 3A. Plug Removal for Rear Terminals Retrofitting 3B. Rear Terminals Retrofitting To the rear of the chassis To Retrofit the Rear Terminals Option Replaceable Parts Exchange Assemblies Exchange AssembliesReference Designations Replaceable PartsReference Designations How To Order a Part How To Order a PartParts Identification Contacting Hewlett-Packard By telephoneFor mail correspondence, use the address below Cabinet Parts and Hardware Cabinet Parts and HardwareReference Designation Code Mfr Mfr Part NumberOption MP2 MP3 Mfr Code Manufacturer Name Address Zip Code Manufacturer’s Code ListBackdating Manual Changes Older InstrumentsInstrument this Guide Directly Applies To Backdating Hardware Change 2 New A3 5/12.4 GHz Prescaler AssemblyChange 1 Below Series Prefix 3711A Backdating HardwareChange 3 New Tcxo boards 10. A4 AC Power Supply -9V Output Check Option 010/012 OnlyChange 4 Series 3710A to 3705A Change 6 Below Series Prefix 3416A Change 5 Series 3705A to 3546A, 3548AChange 8 Below Serial Prefix 3404A Change 7 Below Serial Number 3349A01906About the HP 53131A Calibration Menu Backdating FirmwareChange 1 Firmware Revisions 3317, 3335, 3402 Backdating FirmwareAbout the HP 53131A Calibration Menu HP 53131A Utility/Calibration Menu TreeHP 53131A Calibration Procedures HP 53131A Calibration ProceduresDC Power Supply HP 53131A Counter To Calibrate Time Interval HP 8130A HP53131APulse Generator Counter EquipmentHouse Standard MHz Reference HP 53131A Counter Medium or High Backdating Specifications Backdating SpecificationsChange 1 53131A, Serial Prefix 3710A and Below Change 2 53132A, Serial Prefix 3546A and BelowChange 3 53181A, Serial Prefix 3711A02841 and Below Backdating Specifications HP 53131A/132A Specifications Channel 1 & 2 Input Specifications1 Channel 1 & 2 Input Characteristics1Instrument Inputs Channel 3 Input Characteristics Channel 3 Input Specifications4External Arm Input Specifications External Arm Input CharacteristicsTime Base Time Base Output SpecificationsTime Base Internal Time Base StabilityMeasurement Specifications Measurement SpecificationsFrequency, Period Automatic or External Arming HP 53131A-Worst Case RMS ResolutionHP 53132A-Worst Case RMS Resolution × Frequency Frequency Measurement ExampleLSD Time IntervalPhase Pulse WidthRise/Fall Time Duty Cycle TotalizePeak Volts Trigger Level Timing Error Definitions of Systematic Uncertainty Terms Trigger ErrorMeasurement Definitions Measurement DefinitionsTypical Versus Worst Case Specifications Time Interval Measurement LSD DefinitionAdditional Considerations for Digits and Time Arming Modes Measurement Arming and Processing Measurement Arming and ProcessingGate Time Measurement Throughput Measurement ArmingMeasurement Limits Measurement StatisticsGeneral Information General InformationHP 53181A Specifications Channel 1 Input Characteristics Channel 1 Input SpecificationsChannel 2 Input Characteristics Channel 2 Input Specifications3Time Base Where N = 1 for Ch1 Frequency 1 MHz Worst Case RMS Resolution Frequency Measurement Example Ratio 1 ⁄ Ch2 Freq × Gate Time Ratio 2 ⁄ Typical Versus Worst Case Specifications Available Statistics Power is removed from the counter General Information Index Index-2 Assembly-Level Service Guide Assembly-Level Service Guide Index-3 Index-4 Assembly-Level Service Guide Contacting Hewlett-Packard Page From front matter Manual Part Number