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HP 70004A Service Manual
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HP 70004A Service Manual

HP 70004A Service Manual

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Service Guide
HP 70004A
Color Display
ABCDE
HP Part No. 70004-90046
Printed in USA August 1994
Edition A.0.0

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Summary of Contents for HP 70004A

  • Page 1 All manuals and user guides at all-guides.com Service Guide HP 70004A Color Display ABCDE HP Part No. 70004-90046 Printed in USA August 1994 Edition A.0.0...
  • Page 2 All manuals and user guides at all-guides.com Notice...
  • Page 3 All manuals and user guides at all-guides.com Certi cation Warranty Limitation of Warranty Exclusive Remedies Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard products. For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce.
  • Page 4 All manuals and user guides at all-guides.com Safety Symbols CAUTION CAUTION CAUTION WARNING The WARNING sign denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in injury to the user. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.
  • Page 5 All manuals and user guides at all-guides.com General Safety Considerations WARNING These servicing instructions are for use by quali ed personnel only. To avoid electrical shock, do not perform any servicing unless you are quali ed to do so. The opening of covers or removal of parts is likely to expose dangerous voltages.
  • Page 6 All manuals and user guides at all-guides.com Servicing at a Glance...
  • Page 7 All manuals and user guides at all-guides.com Software and documentation supplied HP 70004A Service Guide HP 70004A Component Level Information Packages Tools needed Antistatic precautions...
  • Page 8 All manuals and user guides at all-guides.com In This Book Manual 1 Manual 2 Before you begin servicing viii...
  • Page 9 All manuals and user guides at all-guides.com Contents 1. Getting Started 2. Module Veri cation Software 3. Before Extensive Servicing 4. Troubleshooting Contents-1...
  • Page 10 All manuals and user guides at all-guides.com 5. Recommended Test Equipment Tables 6. Adjustment Procedures 7. Module Veri cation Tests 8. Equipment Calibration 9. Replacing Major Assemblies 10. Overall Parts Identi cation Drawings Index Contents-2...
  • Page 11 All manuals and user guides at all-guides.com Figures Tables Contents-3...
  • Page 12 All manuals and user guides at all-guides.com...
  • Page 13 All manuals and user guides at all-guides.com Getting Started Getting Started 1-1...
  • Page 14 All manuals and user guides at all-guides.com What Is Servicing? Module Veri cation Tests System Veri cation of Operation Tests System Performance Tests HP 70000 Modular Spectrum Analyzer Installation and Veri cation Manual When Is Servicing Needed? 1-2 Getting Started...
  • Page 15 All manuals and user guides at all-guides.com If You Want Hewlett-Packard to Service Your Color Display Determining Your Color Display's Serial Number Figure 1-1. Typical Serial Number Label Getting Started 1-3...
  • Page 16 All manuals and user guides at all-guides.com Table 1-1. Hewlett-Packard Sales and Service Oces US FIELD OPERATIONS EUROPEAN OPERATIONS INTERCON OPERATIONS HEADQUARTERS HEADQUARTERS HEADQUARTERS California Australia France Canada Germany Colorado Japan Great Britain Georgia China Illinois New Jersey Singapore Texas Taiwan 1-4 Getting Started...
  • Page 17 All manuals and user guides at all-guides.com Returning Your Color Display for Service CAUTION Getting Started 1-5...
  • Page 18 All manuals and user guides at all-guides.com Table 1-2. Packaging for an 8/8 Module Item Description HP Part Number Qty 1-6 Getting Started...
  • Page 19 All manuals and user guides at all-guides.com Module Veri cation Software Note Module Veri cation Software 2-1...
  • Page 20 All manuals and user guides at all-guides.com...
  • Page 21 All manuals and user guides at all-guides.com Before Extensive Servicing Note Before Extensive Servicing 3-1...
  • Page 22 All manuals and user guides at all-guides.com If an is Flashing in the Display Status Box 3-2 Before Extensive Servicing...
  • Page 23 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. CAUTION...
  • Page 24 All manuals and user guides at all-guides.com Preparing a Static-Safe Work Station Figure 4-1. Static-Safe Work Station CAUTION 4-2 Troubleshooting...
  • Page 25 All manuals and user guides at all-guides.com Reducing ESD Damage momentarily Static-Safe ESD Accessories Table 4-1. Static-Safe ESD Accessories HP Part Description Number Troubleshooting 4-3...
  • Page 26 All manuals and user guides at all-guides.com If Display-Disruptive Errors Occur Table 4-2. Display-Disruptive Errors and Their Associated A5DS2 LED Patterns Error Messages A5DS2 LED Pattern = LED o , = LED on           RAM DATA ERROR (U19)           RAM DATA ERROR (U20)
  • Page 27 All manuals and user guides at all-guides.com If Display-Disruptive Errors Occur           A5 ROM (U23) CHECKSUM           A5 ROM (U24) CHECKSUM           A5 ROM (U25) CHECKSUM           A5 ROM (U26) CHECKSUM...
  • Page 28 All manuals and user guides at all-guides.com If Display-Disruptive Errors Occur           A5 GRAPHICS PROCESSOR 4-6 Troubleshooting...
  • Page 29 All manuals and user guides at all-guides.com If Hardware-Warning Errors Messages (6000 {6999) Occur If Hardware-Warning Errors Messages (6000 {6999) Occur A5 RAM Checksum (battery?) Troubleshooting 4-7...
  • Page 30 All manuals and user guides at all-guides.com If Hardware Error Messages (7000{7999) Occur A5 Error in 8041 A5 GSP Checksum error A5 RAM Data (U20) A5 RAM Data (U19) RAM Address 4-8 Troubleshooting...
  • Page 31 All manuals and user guides at all-guides.com If Hardware Error Messages (7000{7999) Occur A5 ROM (U24) Checksum A5 ROM (U26) Checksum A5 ROM (U23) Checksum A5 ROM (U25) Checksum A5 Graphics DRAM error A5 Graphics VRAM error A5 Graphics Processor Troubleshooting 4-9...
  • Page 32 All manuals and user guides at all-guides.com Overall Block Diagram of Color Display Figure 4-2. Overall Block Diagram of Color Display 4-10 Troubleshooting...
  • Page 33 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Troubleshooting 4-11...
  • Page 34 All manuals and user guides at all-guides.com Figure 4-3. A5 Processor Diagnostics Location 4-12 Troubleshooting...
  • Page 35 All manuals and user guides at all-guides.com Diagnostic Tools A4 Power Supply Diagnostic Tools Display Diagnostic Tools, Turn-On Display Diagnostic Tools, Front-Panel NNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN misc display tests NNNNNNNNNNNNNN misc NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN display tests CONFID TEST Troubleshooting 4-13...
  • Page 36 NNNNNNNNNNNNNN misc NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNN display tests KNOB TEST NNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN misc display test TUMBLE FIGURES Display Diagnostic Tools, Failures HP-MSIB Diagnostic Tools NNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Misc display tests service modes DISPLAY NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ACTIVE ON/OFF ACTIVE ON ACTIVE OFF...
  • Page 37 All manuals and user guides at all-guides.com NNNNNNNNNNNNNNNNN ENTER Table 4-3. Decimal/Hexadecimal Conversion Decimal Hexadecimal Decimal Hexadecimal NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN HP-MSIB Utility Test Pattern Diagnostic Tools NNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Misc display tests test patterns DISPLAY Troubleshooting 4-15...
  • Page 38 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. 4-16 Troubleshooting...
  • Page 39 All manuals and user guides at all-guides.com Figure 4-4. A4 Power Supply Indicators and Fuses (Front) Troubleshooting 4-17...
  • Page 40 All manuals and user guides at all-guides.com Figure 4-5. A4 Power Supply Indicators and Fuses (Back) 4-18 Troubleshooting...
  • Page 41 All manuals and user guides at all-guides.com State 1. State 2. State 3. State 4. State 5. State 6. Note Troubleshooting 4-19...
  • Page 42 All manuals and user guides at all-guides.com State 1. No Observed Power. The Front-Panel Power Indicator is O . Note Figure 4-6. Voltage Selector Switch Note DANGER These procedures require access to the interior of the color display, only quali ed service personnel should perform the servicing procedures.
  • Page 43 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Troubleshooting 4-21...
  • Page 44 All manuals and user guides at all-guides.com 4-22 Troubleshooting...
  • Page 45 All manuals and user guides at all-guides.com State 2. The FAULT Indicator Light (A4DS6) is Lit. Note Troubleshooting 4-23...
  • Page 46 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. 4-24 Troubleshooting...
  • Page 47 All manuals and user guides at all-guides.com Troubleshooting 4-25...
  • Page 48 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. one at a time...
  • Page 49 All manuals and user guides at all-guides.com Note one at a time Troubleshooting 4-27...
  • Page 50 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. 4-28 Troubleshooting...
  • Page 51 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Troubleshooting 4-29...
  • Page 52 All manuals and user guides at all-guides.com one at a time 4-30 Troubleshooting...
  • Page 53 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Do not...
  • Page 54 All manuals and user guides at all-guides.com touch Component-Level Hints 4-32 Troubleshooting...
  • Page 55 All manuals and user guides at all-guides.com Display and Processor Troubleshooting State 7. State 8. State 9. Identifying the Failed Assembly State 7. Display Disruptive Messages. State 8. Abnormal CRT Display. Troubleshooting 4-33...
  • Page 56 All manuals and user guides at all-guides.com State 9. Memory Card Troubleshooting. Display Mass Storage Memory Card A5 Processor Component-level Troubleshooting Select Mode Tests CAUTION 4-34 Troubleshooting...
  • Page 57 All manuals and user guides at all-guides.com A5S1 ADDR SW: 0NNNN101 0NNNN111 NNNN Table 4-4. Select Mode Tests Test Tests: Test Number: Fail Code: Number 0000                     0001                    ...
  • Page 58 All manuals and user guides at all-guides.com NNNN Table 4-5. Test Descriptions Test Name Description Number 0000 0001 0010 0011 0100 0101 0110 4-36 Troubleshooting...
  • Page 59 All manuals and user guides at all-guides.com Table 4-5. Test Descriptions (continued) Test Name Description Number 0111 NULL NMAA 1000 1001 1010 Troubleshooting 4-37...
  • Page 60 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. CAUTION...
  • Page 61 All manuals and user guides at all-guides.com Troubleshooting LEDs and DIP Switch Map Figure 4-7. A5 Processor Diagnostics Locations Troubleshooting 4-39...
  • Page 62 All manuals and user guides at all-guides.com Figure 4-8. A5 Processor Switch Locations 4-40 Troubleshooting...
  • Page 63 All manuals and user guides at all-guides.com Service Test List Group 0 A5S1 ADDR SW: 110001X1 A5S2 UPPER SW: 11111111 11111110 1111110X 111110XX 11110XXX 1110XXXX 12/31/99, 23:59:50 110XXXX0 10XXXXX0 0XXXXXXX 0 = Open 1 = Closed X = Don't care Troubleshooting 4-41...
  • Page 64 All manuals and user guides at all-guides.com Group 1 A5S1 ADDR SW: 11001101 A5S2 UPPER SW: 11111111 11111110 1111110X 111110XX 11110XXX 1110XXXX 110XXXXX 10XXXXXX 0XXXXXXX 0 = Open 1 = Closed X = Don't care 4-42 Troubleshooting...
  • Page 65 All manuals and user guides at all-guides.com Group 2 A5S1 ADDR SW: 110101X1 A5S2 UPPER SW: 11111111 11111110 1111110X 111110XX 11110XXX 1110XXXX 110CTTTT 1100CCCC 1101CCCC TTTT 0000 1111 Troubleshooting 4-43...
  • Page 66 All manuals and user guides at all-guides.com Group 2 (continued) Note: Pattern Key: 10000000 1000GGGG 1001CCCC 101110XX 1010XXXX 0XXXXXXX 0 = Open 1 = Closed X = Don't care 4-44 Troubleshooting...
  • Page 67 All manuals and user guides at all-guides.com Group 3 A5S1 ADDR SW: 110101X1 A5S2 UPPER SW: 11111111 Note: 11111110 SRG, EOI, ATN, IFC, Note: SRQ, EOI, ATN, IFC, 1111110X 111110XX 11110XXX 1110XXXX 110XXXXX 10XXXXXX 0XXXXXXX 0 = Open 1 = Closed X = Don't care Troubleshooting 4-45...
  • Page 68 All manuals and user guides at all-guides.com Group 4 A5S1 ADDR SW: 111001X1 A5S2 UPPER SW: 11111111 11111110 1111110X 111110XX 11110XXX 1110XXXX 110XXXXX 10XXXXXX 0XXXXXXX 0 = Open 1 = Closed X = Don't care 4-46 Troubleshooting...
  • Page 69 All manuals and user guides at all-guides.com HP-MSIB and HP-IB Troubleshooting HP 70004A Color Display User's Guide mainframe functions State 10. State 11. State 12. Troubleshooting 4-47...
  • Page 70 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. 4-48 Troubleshooting...
  • Page 71 All manuals and user guides at all-guides.com Figure 4-9. Front-Panel HP-MSIB Fault Indicator Light Troubleshooting 4-49...
  • Page 72 All manuals and user guides at all-guides.com State 11. HP-MSIB Troubleshooting, HP-MSIB Light is O . Note CAUTION 4-50 Troubleshooting...
  • Page 73 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN...
  • Page 74 All manuals and user guides at all-guides.com Figure 4-10. HP-MSIB Module Connector 4-52 Troubleshooting...
  • Page 75 All manuals and user guides at all-guides.com State 12. HP-IB Troubleshooting Note must HP 70004A Color Display User's Guide Note one at a time Troubleshooting 4-53...
  • Page 76 All manuals and user guides at all-guides.com...
  • Page 77 All manuals and user guides at all-guides.com Recommended Test Equipment Tables Table 5-1. Recommended Test Equipment Equipment Recommended Model Meters Accessories Adjustment Tools Do not use an auto trans. Use this adjustment tool for adjustments requiring a nonmetallic tuning tool. Recommended Test Equipment Tables 5-1...
  • Page 78 All manuals and user guides at all-guides.com...
  • Page 79 All manuals and user guides at all-guides.com Adjustment Procedures Note do not only Adjustment Procedures 6-1...
  • Page 80 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Table 6-1. A4 Power Supply Adjustable Components...
  • Page 81 All manuals and user guides at all-guides.com Power Supply Adjustments CAUTION Note Note LINE Adjustment Procedures 6-3...
  • Page 82 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. WARNING First, verify that the Line-Isolated Variable Mains Transformer (VARIAC) is o .
  • Page 83 All manuals and user guides at all-guides.com Low Line Adjustment Figure 6-1. Low Line Adjustment Adjustment Procedures 6-5...
  • Page 84 All manuals and user guides at all-guides.com Low Line Adjustment > 6-6 Adjustment Procedures...
  • Page 85 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Figure 6-2. Current Limit Adjustment...
  • Page 86 All manuals and user guides at all-guides.com Current Limit Adjustment 6-8 Adjustment Procedures...
  • Page 87 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Figure 6-3. Output Voltage Adjustment...
  • Page 88 All manuals and user guides at all-guides.com Output Voltage Adjustment 6-10 Adjustment Procedures...
  • Page 89 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Figure 6-4. +65 Volt Adjustment...
  • Page 90 All manuals and user guides at all-guides.com +65 Volt Adjustment 6-12 Adjustment Procedures...
  • Page 91 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. Figure 6-5. Monitor Adjustments...
  • Page 92 All manuals and user guides at all-guides.com Monitor Adjustments Vertical Centering Adjustment DISPLAY Display Intensity Adjustment Note NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN display tests test pattern DISPLAY NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN MORE 1 OF 3 BLK LVL TEST NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN MORE 2 OF 3 WHITE FILL 6-14 Adjustment Procedures...
  • Page 93 All manuals and user guides at all-guides.com Module Veri cation Tests Note Module Veri cation Tests 7-1...
  • Page 94 All manuals and user guides at all-guides.com...
  • Page 95 All manuals and user guides at all-guides.com Equipment Calibration Note Equipment Calibration 8-1...
  • Page 96 All manuals and user guides at all-guides.com...
  • Page 97 All manuals and user guides at all-guides.com Replacing Major Assemblies Replacing Major Assemblies 9-1...
  • Page 98 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the A1 Front Panel...
  • Page 99 All manuals and user guides at all-guides.com A1 Front Panel To Replace the A1 Front Panel Figure 9-1. A1 Front Panel Removal/Replacement Replacing Major Assemblies 9-3...
  • Page 100 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the A3 Monitor/Monitor Bracket...
  • Page 101 All manuals and user guides at all-guides.com A3 Monitor/Monitor Bracket CAUTION To Replace the A3 Monitor/Monitor Bracket Replacing Major Assemblies 9-5...
  • Page 102 All manuals and user guides at all-guides.com A3 Monitor/Monitor Bracket Figure 9-2. A3 Monitor/Monitor Bracket Removal/Replacement (1 of 2) 9-6 Replacing Major Assemblies...
  • Page 103 All manuals and user guides at all-guides.com A3 Monitor/Monitor Bracket Figure 9-3. A3 Monitor/Monitor Bracket Removal/Replacement (2 of 2) Replacing Major Assemblies 9-7...
  • Page 104 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the A4 Power Supply...
  • Page 105 All manuals and user guides at all-guides.com A4 Power Supply CAUTION To Replace the A4 Power Supply Replacing Major Assemblies 9-9...
  • Page 106 All manuals and user guides at all-guides.com A4 Power Supply Figure 9-4. A4 Power Supply Removal/Replacement 9-10 Replacing Major Assemblies...
  • Page 107 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the A5 Processor...
  • Page 108 All manuals and user guides at all-guides.com A5 Processor To Replace the A5 Processor 9-12 Replacing Major Assemblies...
  • Page 109 All manuals and user guides at all-guides.com A5 Processor Figure 9-5. A5 Processor Removal/Replacement Replacing Major Assemblies 9-13...
  • Page 110 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the A6 HP-MSIB...
  • Page 111 All manuals and user guides at all-guides.com A6 HP-MSIB To Replace the A6 HP-MSIB Replacing Major Assemblies 9-15...
  • Page 112 All manuals and user guides at all-guides.com A6 HP-MSIB Figure 9-6. A6 HP-MSIB Removal/Replacement 9-16 Replacing Major Assemblies...
  • Page 113 Service personnel must use a >> 1 M resistor-isolated wrist strap or heel strap while handling the A4 power supply. To avoid damaging the HP 70004A color display module connectors, the HP 70004A color display must be o before installing or removing any modules. To Remove the Rear Frame To Replace the Rear Frame Figure 9-7.
  • Page 114 All manuals and user guides at all-guides.com Rear Frame Custom Key-Panel Assembly To Remove the Key Panel To Replace the Key Panel Figure 9-8. Installing the Custom Keypad (Without Button) 9-18 Replacing Major Assemblies...
  • Page 115 All manuals and user guides at all-guides.com Custom Key-Panel Assembly Figure 9-9. Installing the Custom Keypad Replacing Major Assemblies 9-19...
  • Page 116 All manuals and user guides at all-guides.com...
  • Page 117 All manuals and user guides at all-guides.com Overall Parts Identi cation Drawings Overall Parts Identi cation Drawings 10-1...
  • Page 118 All manuals and user guides at all-guides.com Front View Identi cation Overall Parts Identi cation Listing, Front View Item HP Part Description Mfr Part Number Code Number 10-2 Overall Parts Identi cation Drawings...
  • Page 119 All manuals and user guides at all-guides.com Front View Identi cation Figure 10-1. Overall Parts Identi cation Drawing, Front View Overall Parts Identi cation Drawings 10-3...
  • Page 120 All manuals and user guides at all-guides.com Top View of Monitor Identi cation Overall Parts Identi cation Drawing, Top View Item HP Part Description Mfr Part Number Code Number 10-4 Overall Parts Identi cation Drawings...
  • Page 121 All manuals and user guides at all-guides.com Top View of Monitor Identi cation Figure 10-2. Overall Parts Identi cation Drawing, Top View Overall Parts Identi cation Drawings 10-5...
  • Page 122 All manuals and user guides at all-guides.com Rear View Identi cation Overall Parts Identi cation Drawing, Rear View Item HP Part Description Mfr Part Number Code Number 10-6 Overall Parts Identi cation Drawings...
  • Page 123 All manuals and user guides at all-guides.com Rear View Identi cation Figure 10-3. Overall Parts Identi cation Drawing, Rear View Overall Parts Identi cation Drawings 10-7...
  • Page 124 All manuals and user guides at all-guides.com Bottom View Identi cation Overall Parts Identi cation Listing, Bottom View Item HP Part Description Mfr Part Number Code Number Overall Parts Identi cation Drawing, Bottom View 10-8 Overall Parts Identi cation Drawings...
  • Page 125 All manuals and user guides at all-guides.com Side View Identi cation Side View Identi cation Overall Parts Identi cation Listing, Side View Item HP Part Description Mfr Part Number Code Number Overall Parts Identi cation Drawing, Side View Overall Parts Identi cation Drawings 10-9...
  • Page 126 Mfr Part Number Code Number ACCESSORIES SUPPLIED CABLE ASSEMBLIES MISC. ASSEMBLIES To obtain the HP part numbers for replaceable assemblies, refer to the HP 70004A Component Level (Manual 2 of this manual set). Information Packages 10-10 Overall Parts Identi cation Drawings...
  • Page 127 All manuals and user guides at all-guides.com A5 Processor Service View Identi cation Figure 10-4. Overall Parts Identi cation Drawing, A5 Service View Overall Parts Identi cation Drawings 10-11...
  • Page 128 All manuals and user guides at all-guides.com...
  • Page 129 All manuals and user guides at all-guides.com Index Index-1...
  • Page 130 All manuals and user guides at all-guides.com Index-2...