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3.1 Power Supply

The power supply automatically switches to either the 100-125 Vac or the

200-240 Vac range. The ac input is converted to dc outputs that supply

the system with proper operating voltages.

When the system is powered-off for 10 seconds or more and then powered-on,

the power supply generates a 'power good' signal that resets system logic.

The presence of the 'power good' signal indicates that the power supply is

operating properly and that the minimum under-voltage sense levels have

been established. This means that all system-board power requirements

have been met.

+------------------------------------------------------------------------+

¦ Output ¦ Minimum Under-Voltage ¦

¦ (Vdc) ¦ Sense Level (Vdc) ¦

+------------------------------------+-----------------------------------¦

¦ + 5.0 ¦ + 4.5 ¦

+------------------------------------+-----------------------------------¦

¦ +12.0 ¦ +10.8 ¦

+------------------------------------+-----------------------------------¦

¦ -12.0 ¦ -10.2 ¦

+------------------------------------+-----------------------------------¦

¦ ¦ ¦

+------------------------------------------------------------------------+

The 'power good' signal turns on the green power-good light on the front

of the system. If the green light is not on, the power supply is not

functioning properly.

IBM PS/2 Model 80 HMR

Power Supply

¦ Copyright IBM Corp. 1990

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Содержание PS/2 80

Страница 1: ...FRONT PICTURE 1 Part Number 84F8548 Form Number S64F 3995 01 September 25 1990 IBM PS 2 Model 80 HMR Copyright IBM Corp 1990 FRONT 1...

Страница 2: ...changes in the product s and or the program s described in this publication at any time It is possible that this publication may contain reference to or information about IBM products machines and pro...

Страница 3: ...m or service Evaluation and verification of operation in conjunction with other products programs or services except those expressly designated by IBM are the user s responsibility IBM may have patent...

Страница 4: ...05 Cover 8 2 1010 Cover Lock 8 3 1015 80386 System Board Memory Expansion Kit 8 4 1020 Adapters 8 5 1025 80386 Memory Expansion Kit 8 6 1030 Math Coprocessor 8 7 1035 Battery and Speaker Assembly 8 8...

Страница 5: ...slots Three or four 32 bit slots varies with model Four or Five 16 bit slots varies with model One 16 bit slot with an auxiliary video connector extension and one slot normally occupied by the fixed d...

Страница 6: ...1 1 Security Subtopics 1 1 1 Cover Lock 1 1 2 Power On Password IBM PS 2 Model 80 HMR Security Copyright IBM Corp 1990 1 1 1...

Страница 7: ...ock are lost a new cover lock assembly can be ordered see the parts section in the Hardware Maintenance Service pamphlet for the system you are servicing The new assembly contains two keys Use one of...

Страница 8: ...s 2 and 3 together If the assembly has no pins insert a meter lead into connector 1 and short the other end of the lead to frame ground With the assembly shorted power on the system This deactivates t...

Страница 9: ...e controller Keyboard connector Pointing device connector Subtopics 1 2 1 Microprocessor 1 2 2 CMOS RAM and CMOS RAM Extension 1 2 3 ROM BIOS 1 2 4 VGA 1 2 5 Serial Port 1 2 6 Parallel Port 1 2 7 Disk...

Страница 10: ...80386 Microprocessor is a 32 bit processor and operates in three modes real address mode virtual address protected mode or virtual 8086 mode The microprocessor speed is 16 MHz 20 MHz or 25 MHz dependi...

Страница 11: ...M and CMOS RAM extension is kept active by the battery when the system is powered off If the stored data is lost due to a depleted or removed battery the data can be restored using one of the followin...

Страница 12: ...lays and other major input output devices in the system Some adapters have their own ROM modules containing extended BIOS routines that work with the system board ROM BIOS The routines for performing...

Страница 13: ...have either one or two 16 bit extended expansion slots on the system board These slots extend farther to the rear of the system board than the others The extended expansion slots accommodate video ad...

Страница 14: ...n as either SERIAL 1 or SERIAL 2 If adapters with serial ports are installed in the system they can be configured from SERIAL 1 to SERIAL 8 The port on the system board can be only SERIAL 1 or SERIAL...

Страница 15: ...tion that matches the input output capabilities of the port When adapters with additional parallel ports are installed the system can support three devices each addressed separately as PARALLEL 1 PARA...

Страница 16: ...ngle 40 pin connector on the system board Signals and voltages are supplied through the diskette drive cable that plugs into the connector These signals and voltages can operate two IBM 3 5 inch diske...

Страница 17: ...keyboard and a pointing device mouse The keyboard connector is marked with a small keyboard figure molded into the back panel the unmarked connector is for the pointing device The interface logic is...

Страница 18: ...ers operate in any system board expansion slot For supported options see the parts section in the Hardware Maintenance Service pamphlet for the system you are servicing Subtopics 2 1 Drive and Diskett...

Страница 19: ...wing addresses the compatibility of diskettes to diskette drives Diskette 720KB 1 44MB Capacity Drive Drive 1 0MB Read Write Read Write 2 0MB Not Compatible Read Write Note For additional information...

Страница 20: ...DI drive For supported fixed disk drives see the parts section in the Hardware Maintenance Service pamphlet for the model you are servicing The Model 80 uses fixed disk drives that automatically posit...

Страница 21: ...rive on the cable must have a terminator The location quantity and appearance of the terminator may vary from drive to drive An identification label or tag usually T RES is attached to the terminator...

Страница 22: ...ion describes the operations that occur from the time the system is powered on until the minimum operating requirements have been met Subtopics 3 1 Power Supply IBM PS 2 Model 80 HMR Operating Require...

Страница 23: ...tem logic The presence of the power good signal indicates that the power supply is operating properly and that the minimum under voltage sense levels have been established This means that all system b...

Страница 24: ...on on POST system utility programs customer and advanced diagnostics see the Diagnostic Information for Micro Channel Computers pamphlet Subtopics 4 1 System Memory IBM PS 2 Model 80 HMR Diagnostic Pr...

Страница 25: ...tem Memory Subtopics 4 1 1 System Board Memory 4 1 2 Memory Expansion Adapters 4 1 3 Memory Requirements and Limitations 4 1 4 Memory Errors IBM PS 2 Model 80 HMR System Memory Copyright IBM Corp 1990...

Страница 26: ...installed at the time of shipment Additional memory can be installed by adding memory expansion adapters The system can support 16MB of memory The 80386 System Board Memory Expansion Kit has a 3 by 32...

Страница 27: ...be installed in the system Each adapter can have three 80386 Memory Expansion Kits installed The adapters can be installed in any of the 32 bit expansion slots on the system board The amount of memory...

Страница 28: ...Expansion Adapters and each memory expansion adapter does not have to be filled to capacity before you add another memory expansion adapter Whenever memory is added or removed from the system the set...

Страница 29: ...displayed The first 1MB of memory address space cannot be assigned to adapter memory After the first 1MB of memory has been tested it is assigned addresses If the POST detects a memory error in any m...

Страница 30: ...umidity Power on 8 to 80 Power off 5 to 80 Maximum altitude 2134 m 7000 ft Heat Output 1245 British thermal units BTUs per hour 365 1 watts per hour Electrical Input voltage Sinewave input is required...

Страница 31: ...ial and parallel ports The Tri Connector wrap plug replaces the following IBM part 8529228 Printer Adapter wrap plug IBM part 8286126 Serial Port wrap plug IBM part 8529280 Communications Adapter wrap...

Страница 32: ...after the feet have been folded CAUTION The system unit with options may weigh as much as 26 kilograms 58 pounds Be careful when moving or changing the position of the unit To ensure general safety d...

Страница 33: ...oard adapters memory modules and the math coprocessor are sensitive to and can be damaged by electrostatic discharge Establish personal grounding by touching a ground point with one hand before touchi...

Страница 34: ...ore removing any field replaceable unit FRU power off the system unplug all power cords from electrical outlets and disconnect any interconnecting cables PICTURE 5 IBM PS 2 Model 80 HMR 1005 Cover Cop...

Страница 35: ...8 2 1010 Cover Lock Cover 1005 PICTURE 6 IBM PS 2 Model 80 HMR 1010 Cover Lock Copyright IBM Corp 1990 8 2 1...

Страница 36: ...386 System Board Memory Expansion Kit Cover 1005 Note Not all models have memory expansion kit latches 1 PICTURE 7 IBM PS 2 Model 80 HMR 1015 80386 System Board Memory Expansion Kit Copyright IBM Corp...

Страница 37: ...eplacement adapter in the same slot as the adapter that was removed Stored configuration information depends on the location of the adapter If the replacement adapter is installed in a different locat...

Страница 38: ...Expansion Kit Cover 1005 80386 Memory Expansion Adapter 1020 Note The 80386 Memory Expansion Kits can be installed in any order PICTURE 9 IBM PS 2 Model 80 HMR 1025 80386 Memory Expansion Kit Copyrigh...

Страница 39: ...rocessor will vary with the type of system board See Locations for system board layout On Model 80 041 071 the beveled corner must face the bottom and rear of the system On Model 80 081 111 121 161 31...

Страница 40: ...ordinances or regulations When replacing the battery use only Part No 72X8498 Use of another battery could result in ignition or explosion of the battery Replacement batteries can be ordered from IBM...

Страница 41: ...8 8 1040 Feet Cover 1005 Remove any adapters 1020 that are in the way PICTURE 12 IBM PS 2 Model 80 HMR 1040 Feet Copyright IBM Corp 1990 8 8 1...

Страница 42: ...8 9 1045 Front Bezel PICTURE 13 IBM PS 2 Model 80 HMR 1045 Front Bezel Copyright IBM Corp 1990 8 9 1...

Страница 43: ...8 10 1050 Carrying Handle Front bezel 1045 PICTURE 14 IBM PS 2 Model 80 HMR 1050 Carrying Handle Copyright IBM Corp 1990 8 10 1...

Страница 44: ...8 11 1055 Power Supply Cover 1005 Front bezel 1045 Disconnect any cables necessary for removal PICTURE 15 IBM PS 2 Model 80 HMR 1055 Power Supply Copyright IBM Corp 1990 8 11 1...

Страница 45: ...ette Drive Cover 1005 Front bezel 1045 Note Some models require that you unplug the diskette drive cable before removing the drive PICTURE 16 IBM PS 2 Model 80 HMR 1060 Diskette Drive Copyright IBM Co...

Страница 46: ...rives 1060 Disconnect any cables necessary for removal Notes 1 Not all models have diskette drive cable retainers 2 See Locations for cable connection and arrangement information PICTURE 17 IBM PS 2 M...

Страница 47: ...ette Drive Support Structure Cover 1005 Front bezel 1045 Diskette drive 1060 Diskette drive cable retainer 1065 PICTURE 18 IBM PS 2 Model 80 HMR 1070 Diskette Drive Support Structure Copyright IBM Cor...

Страница 48: ...e Cover 1005 Front bezel 1045 Disconnect any cables necessary for removal Notes 1 Remove the terminator on the fixed disk drive in the front bay 2 See Locations for cable connection information 3 When...

Страница 49: ...y if installed 1075 2 The fixed disk drive in the rear bay must have the terminator installed Some models might have two SCSI fixed disk drives in the rear bay On those models the terminator must be i...

Страница 50: ...bracket or remove four screws on each side for a two drive bracket Disconnect any cables necessary for removal Note Some models may have one or two fixed disk drives mounted in a bracket PICTURE 21 I...

Страница 51: ...port Structure SCSI Drives Cover 1005 Fixed disk drive front bay if installed 1075 Fixed disk drive rear bay 1080 PICTURE 22 IBM PS 2 Model 80 HMR 1090 Fixed Disk Drive Support Structure SCSI Drives C...

Страница 52: ...stalled 1030 Front or rear fixed disk drives 1075 1080 Fixed disk drive support structure 1090 80386 System Board Memory Expansion Kits 1015 Disconnect any cables necessary for removal Notes 1 When a...

Страница 53: ...ystem board 1095 Note When you remove the four screws that hold the bracket the labels on the outside of the system will be destroyed Replace these labels with new labels after reassembly See the part...

Страница 54: ...Internal Cables Model 80 8580 041 071 111 311 9 5 Internal Cables Model 80 8580 081 121 161 321 A21 A31 A16 9 6 System Board Model 80 8580 041 071 081 111 121 161 311 321 9 7 System Board Model 80 858...

Страница 55: ...good light 4 Fixed disk drive in use light 5 Power switch 6 Diskette drive in use light 7 Diskette drive A 8 Diskette eject button 9 Diskette drive B if installed 10 Serial number PICTURE 25 IBM PS 2...

Страница 56: ...onnector 2 Keyboard connector 3 Pointing device connector 4 Parallel port 5 Serial port 6 Display connector 7 SCSI connector some models 8 Expansion slots PICTURE 26 IBM PS 2 Model 80 HMR Rear View Co...

Страница 57: ...nstalled 4 Front bay fixed disk drive if installed 5 Battery and speaker assembly 6 Expansion slots numbered from bottom 1 to 8 7 Rear bay fixed disk drive 8 80386 System Board Memory Expansion Kit PI...

Страница 58: ...s devices 1 Power supply 2 Fixed disk drive rear bay 3 Fixed disk drive front bay 4 Diskette drive A 5 Diskette drive B 6 System board 7 Speaker battery 8 Data cable 9 Fixed disk drive adapter 10 Cont...

Страница 59: ...nnect the various devices 1 Power supply 2 Fixed disk drive rear bay 3 Fixed disk drive front bay 4 Diskette drive A 5 Diskette drive B 6 System board 7 Speaker battery 8 SCSI Cable 9 SCSI Adapter PIC...

Страница 60: ...111 121 161 311 321 5 Battery and speaker assembly connector 6 Math coprocessor connector 041 071 7 16 bit expansion slot 8 32 bit expansion slot 9 Video slot slot 6 10 Display connector 11 Serial con...

Страница 61: ...Math coprocessor connector 5 Battery and speaker assembly connector 6 16 bit expansion slot 7 32 bit expansion slot 8 Video slot slot 6 9 Display connector 10 Serial connector 11 Parallel connector 12...

Страница 62: ...10 0 Safety Grounds 1 Power cord connector 2 Primary ground 3 Chassis ground 4 Expansion slot screws 5 Screws PICTURE 32 Notes IBM PS 2 Model 80 HMR Safety Grounds Copyright IBM Corp 1990 10 0 1...

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