Equipment information

Fluke 732A Power supply
Manufacturer:
Model:
732A
Date:
1983
Category:
Group:
Description:
DC Reference Standard

Information

1-2. The Fluke Model 732A is a highly stable, rugged, and transportable, solid state, dc voltage reference standard. The 732A has 10V, 1.018V and IV outputs. These outputs are available on front panel binding posts. The calibration adjustments for the IOV, 1.018V and IV outputs are accessible through the front panel. A nonconducting adjustment tool is supplied with the unit for this purpose. 1 -3. All outputs of the 732A can be shorted indefinitely without damage. Recovery occurs in less than 2 minutes after the short is removed, with no loss of stability. 1-4. The stability and accuracy of the 732A allow direct substitution for saturated standard cells in many applications. The stability specification of 0.5 ppm for 30 days is achieved by enclosing the reference Amplifier and output divider of the 732A in a high thermal gain oven. Full accuracy is attained over the specified ambient temperature range of 23 ± 5°C (64.4 to 82,4<1F). Variations in oven temperature may be monitored externally via the OVEN TEMP THERMISTOR terminals on the front panel. 1-5. The 732A may be powered from ac line power, an internal rechargeable battery, or an external low voltage ac or dc source. The 732A is designed to be powered continuously, including during storage or shipment. The back-up battery will continue to operate the 732A for up to 12 hours. Either line or battery power may be removed without affecting the output. The battery is kept charged by an internal battery charger when operating from ac line power, or from the external low voltage ac or dc source. 1“6. Various front panel LEDs (indicators) provide a continuous indication of the operating status of the 732A. The AC PWR indicator illuminates in the presence of ac line power. The BTRY CHG indicator is on steadily for normal charging activity, and is off when the battery is charged. The IN CAL indicator monitors the’ input voltage to the Reference and Oven. Should this voltage fall below that needed to keep the 732A operational, the IN CAL indicator is latched off, indicating a loss of power and standardization, Once power is restored and standardization toäs been verified, the IN CAL indicator can be reset. 1-7. The 732A may be used on the bench or rack mounted* The 732A is a half-rack width instrument and occupies 4 standard 1.75 inch rack spaces. Accessories for the 732A are listed in Table 1-1 and described in more detail in Section 6 of this manual. There are no options available for the 732A.

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Service and User Manual
Manual Type:
Service and User Manual
Pages:
114
Size:
3.84 Mbytes (4026024 Bytes)
Language:
english
Revision:
Manual-ID:
645051
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 01 27
MD5:
90463730ff5c4f9c89b7ea2d6ac8269d
Downloads:
827

Information

1 INTRODUCTION AND SPECIFICATIONS 1-1 1-1. INTRODUCTION ... M 1-8. SPECIFICATIONS ... 1-1 2 OPERATION ... 2-1 2-1. INTRODUCTION ... 2-1 2-3. SHIPPING INFORMATION ... 2-1 2-7. INSTALLATION 2-1 2-9, FRONT AND REAR PANEL FEATURES ... 2-1 2-11. OPERATING NOTES 2-1 2-12, Introduction ... , * ... 2-1 2-14. Input Power Requirements ... ,,,,, ... 2-1 2-16. AC Line Voltage Selection ... ,,, ... 2-1 2-18. Fuse Replacement ... , ... * ... 2-1 2-20. Backup Operating Power ... .. 2-5 2-22. Battery Charging ,.,,, ... 2-5 2-25, IN CAL Indicator and RESET Terminal ... 2-5 2-27. Portability ... 2-5 2-29. Guarded Operation ,,,, ... *.2-5 2-33. Oven Temperature Thermistor ... 2-6 2-36. Minimizing Error Sources ... 2-6 2-45. OPERATION ... 2-7 3 THEORY OF OPERATION ... 3-1 3-1 INTRODUCTION ... 3-1 3-3. OVERALL FUNCTIONAL DESCRIPTION ... 3-1 3-8. CIRCUIT DESCRIPTION 3-1 3-10. Power supply (A3 and A4) , ♦,, ♦ ... * ... 3-1 3-14, Voltage Monitor ... 3-1 3-17, Reference Circuit, A5 ... 3-2 3-20. Output Divider ... * ... 3-2 3-22, Oven Controller ,, .. 3-2 3-25, Battery Charger ... 3-2 4 MAINTENANCE ... 4-1 4-1. INTRODUCTION ... 4-1 4-5, SERVICE INFORMATION 4-1 4-8. GENERAL MAINTENANCE 4-1 4-9. Access Procedure ... * ... - ... 4-1 4-19, Oven Disassembly ... < ... 4-6 4-21, Front Panel Removal ... 4-6 4-23, Cleaning ... ... 4-6 4-26, Fuse Replacement ... 4-6 4-28. AC Line Voltage Change ... 4-6 4-30. ACCEPTANCE TEST ... 4-8 4-32, CALIBRATION ... 4-8 4-35. Null Verification ... ,, ♦ ... , ... 4-8 4-37, Procedure A: Calibrate to Certified 732A ... 4-9 4-39. Procedure B; Calibration to Standard Cells ... 4-10 4-41. SERVICE/REPAIR PROCEDURES ... 4-14 4-42. Introduction ... 4-14 4-44. Battery Charger Adjustment Procedure ... * ... 4-14 4-46. TROUBLESHOOTING ... 4-14 4-47. Introduction . .**♦ ... 4-14 4-49, External Symptom Troubleshooting ... 4-16 4-51. Internal Voltage Measurements ... 4-16 4-53. Oven Repair ... 4-16 5 LIST OF REPLACEABLE PARTS ... 5-1 TABLE OF CONTENTS ... 5-1 6 ACCESSORIES ... 6-1 INTRODUCTION ... 6-1 6-3, DUAL MOUNTING FASTENERS (M00-800-5237) ... 6-1 6-5. HALF-WIDTH RACK MOUNT KIT (M07-203-601) ... 6-1 6-7. FULL-WIDTH RACK MOUNT KIT ( M07-200-603) ... 6-1 6-9, LOW THERMAL EMF CABLE ASSEMBLY (5440A-7002) ... 6-1 6-11. BATTERY PACK (732A-7001) ... 6-1 6-13. TRANSIT CASE (732Λ-7002) ... 6-1 7 GENERAL INFORMATION ... 7-1 7A MANUAL CHANGE INFORMATION ... 7A-1 8 SCHEMATIC DIAGRAMS ... 8-1 TABLE OF CONTENTS ... 8-1 INDEX ... 8-12

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Service and User Manual
Manual Type:
Service and User Manual
Pages:
94
Size:
3.68 Mbytes (3854198 Bytes)
Language:
english
Revision:
Manual-ID:
645051
Date:
1983 05 01
Quality:
Scanned document, all readable.
Upload date:
2017 02 04
MD5:
fc3827e946e6a7f7549ec6c53ba7e07f
Downloads:
796

Information

About this manual This manual contains service and reference information for the following ThinkPad® Notebook products. ThinkPad SL410 Machine Type (MT) 2842 and 2874 ThinkPad L410 MT 2931 and 0616 ThinkPad SL510 MT 2847 and 2875 ThinkPad L510 MT 2873 and 5072 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with ThinkPad Notebook products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkPad Notebook product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 23. Contents About this manual ... iii Chapter 1. Safety information ... 1 General safety ... 1 Electrical safety ... 2 Safety inspection guide ... 3 Handling devices that are sensitive to electrostatic discharge ... 3 Grounding requirements ... 4 Safety notices (multilingual translations) ... 4 Laser compliance statement (multilingual translations) ... 17 Chapter 2. Important service information ... 23 Strategy for replacing FRUs ... 24 Important notice for replacing a system board ... 24 How to use error message ... 24 Strategy for replacing FRUs for CTO, CMV, and GAV ... 24 Product definition ... 24 FRU identification for CTO, CMV, and GAV products ... 25 Chapter 3. General checkout ... 27 What to do first ... 27 Checkout guide ... 28 System supporting the Lenovo ThinkVantage Toolbox program and the PC-Doctor for DOS diagnostics program ... 28 System supporting the Lenovo diagnostics programs ... 33 Power system checkout ... 35 Checking the ac power adapter ... 35 Checking operational charging ... 36 Checking the battery pack ... 36 Checking the backup battery ... 37 Chapter 4. Related service information ... 39 Restoring the factory contents by using Product Recovery discs ... 39 Restoring the factory contents by using Recovery Disc Set ... 39 Passwords ... 41 Power-on password ... 41 Hard-disk password ... 41 Supervisor password ... 42 Power management ... 43 Screen blank mode ... 43 Sleep (standby) mode ... 43 Hibernation mode ... 44 Symptom-to-FRU index ... 44 Numeric error codes ... 45 Error messages ... 46 No-beep symptoms ... 47 LCD-related symptoms ... 47 Intermittent problems ... 48 Undetermined problems ... 48 Chapter 5. Status indicators ... 53 Chapter 7. FRU replacement notices ... 57 Screw notices ... 57 Retaining serial numbers ... 58 Restoring the serial number of the system unit ... 58 Retaining the UUID ... 59 Chapter 8. Removing and replacing a FRU ... 61 1010 Battery pack ... 61 1020 ExpressCard blank bezel and Media Card blank bezel ... 63 1030 Optical drive or travel cover ... 64 1040 Thermal cover ... 65 1050 Hard disk drive (HDD) assembly ... 66 1060 DIMM ... 67 1070 Fan assembly ... 68 1080 CPU ... 71 1090 SIM slot cover ... 72 1100 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN ... 74 1110 Palm rest assembly with cables ... 76 1120 PCI Express Mini Card for wireless LAN . . 78 1130 Backup battery ... 80 1140 Bluetooth daughter card (BDC-2) ... 80 1150 Media Card Reader slot board and Media Card Reader cable assembly ... 81 1160 Keyboard ... 83 1170 Keyboard bezel ... 85 1180 LCD unit ... 87 1190 Top shielding assembly ... 91 1200 System board assembly ... 93 1210 USB connector board and USB cable assembly ... 97 1220 DC-in cable and base cover ... 99 2010 LCD front bezel ... 103 2020 Speaker assembly ... 104 2030 Integrated camera ... 105 2040 Antenna assembly ... 105 2050 Hinges, LCD panel, LCD cable, and LCD rear cover assembly ... 107 Chapter 9. Locations ... 111 Front view ... 111 Rear view ... 112 Bottom view ... 113 Chapter 10. Parts list ... 115 Overall ... 116 LCD FRUs ... 142 Keyboard ... 151 Miscellaneous parts ... 152 ac power adapters ... 154 Power cords ... 155 Recovery discs ... 156 Windows XP Professional (shipping group) DVDs ... 157 Windows Vista Home Basic (32 bit) DVDs . . 157 Windows Vista Home Premium (32 bit) DVDs ... 158 Windows Vista Home Premium (64 bit) DVDs ... 159 Windows 7 Starter (32 bit) DVDs ... 159 Windows 7 Home Basic (32 bit) DVDs ... 160 Windows 7 Home Premium (32 bit) DVDs . . 160 Windows 7 Home Premium (64 bit) DVDs . . 161 Windows 7 Professional (32 bit) DVDs ... 162 Windows 7 Professional (64 bit) DVDs ... 163 Common service tools ... 164 Appendix A. Notices ... 167 Electronic emission notices ... 168 Trademarks ... 168

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