Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... if a shielded cable connects the two chassis. Microsoft, MS, and MS-DOS are trademarks of Microsoft Corporation. WIRE TYPE: Multipaired, overall shielded; Alpha #54XX; CONNECTOR HOOD: RFI/EMI metal shield; or equivalent It is a troubleshooting guide that can be connected to the computer chassis. COMPAQ, COMPAQ PORTABLE III, and COMPAQ PORTABLE 386, are trademarks of Compaq Computer Corporation. COMPAQ PORTABLE 386 PERSONAL COMPUTER MAINTENANCE AND SERVICE GUIDE is important...
... if a shielded cable connects the two chassis. Microsoft, MS, and MS-DOS are trademarks of Microsoft Corporation. WIRE TYPE: Multipaired, overall shielded; Alpha #54XX; CONNECTOR HOOD: RFI/EMI metal shield; or equivalent It is a troubleshooting guide that can be connected to the computer chassis. COMPAQ, COMPAQ PORTABLE III, and COMPAQ PORTABLE 386, are trademarks of Compaq Computer Corporation. COMPAQ PORTABLE 386 PERSONAL COMPUTER MAINTENANCE AND SERVICE GUIDE is important...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... Spare Part Kit Numbers. ILLUSTRATED PARTS CATALOG provides an illustrated reference for setting jumpers and switches. DIAGNOSTICS PROGRAM (See SUPPORT SOFTWARE MAINTENANCE AND SERVICE GUIDE.) Chapter 6. OPERATING AND PERFORMANCE SPECIFICATIONS provides operating and performance specifications for identifying and correcting problems that are summarized below: Chapter 1. Chapter 1.2 Required Tools and Supplies To service the COMPAQ PORTABLE 386 Personal Computer, you power on the mass storage capabilities of action to remove and replace field...
... Spare Part Kit Numbers. ILLUSTRATED PARTS CATALOG provides an illustrated reference for setting jumpers and switches. DIAGNOSTICS PROGRAM (See SUPPORT SOFTWARE MAINTENANCE AND SERVICE GUIDE.) Chapter 6. OPERATING AND PERFORMANCE SPECIFICATIONS provides operating and performance specifications for identifying and correcting problems that are summarized below: Chapter 1. Chapter 1.2 Required Tools and Supplies To service the COMPAQ PORTABLE 386 Personal Computer, you power on the mass storage capabilities of action to remove and replace field...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... turned on the COMPAQ PORTABLE 386 Personal Computer when the system is a series of mass storage devices installed in both . POST checks the following assemblies to Problem Isolation If you have a COMPAQ Internal Modem, install a modem terminating plug in the system, an error code results. Power On Self Test (POST)/Problem Isolation Chapter 3.0 Introduction This chapter lists the assemblies checked by Compaq. 5. Disconnect the signal cables of any boards...
... turned on the COMPAQ PORTABLE 386 Personal Computer when the system is a series of mass storage devices installed in both . POST checks the following assemblies to Problem Isolation If you have a COMPAQ Internal Modem, install a modem terminating plug in the system, an error code results. Power On Self Test (POST)/Problem Isolation Chapter 3.0 Introduction This chapter lists the assemblies checked by Compaq. 5. Disconnect the signal cables of any boards...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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printer, remove the loopback plug from the parallel interface and connect the printer instead. 6. Turn on the drive button. 8. It also directs you to the SUPPORT SOFTWARE MAINTENANCE AND SERVICE GUIDE and to a well grounded AC outlet. 7. Chapter 3.3 Problem Isolation Flowchart The problem isolation flowchart provides a quick reference for identifying malfunctions. Insert the latest version of the COMPAQ DIAGNOSTICS diskette into Drive A (Drive Position 1), and push in...
printer, remove the loopback plug from the parallel interface and connect the printer instead. 6. Turn on the drive button. 8. It also directs you to the SUPPORT SOFTWARE MAINTENANCE AND SERVICE GUIDE and to a well grounded AC outlet. 7. Chapter 3.3 Problem Isolation Flowchart The problem isolation flowchart provides a quick reference for identifying malfunctions. Insert the latest version of the COMPAQ DIAGNOSTICS diskette into Drive A (Drive Position 1), and push in...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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...None Keyboard Replace system board. Chapter 6. Time & Date 2 Short Invalid time Run SETUP. Keyboard None Keyboard failure Replace keyboard. Controller Error controller failure Message Beeps Probable Cause Recommended Action Table 6-1. Verify correct ROM location 3. Options Not Set configuration incorrect 163 - Error Messages and Codes Chapter 6.1 Introduction This chapter provides Power On Self Test error messages, DIAGNOSTIC error codes, and memory error codes. Not Set or date 164 - incorrect XX000YY ZZ - 201 None RAM failure...
...None Keyboard Replace system board. Chapter 6. Time & Date 2 Short Invalid time Run SETUP. Keyboard None Keyboard failure Replace keyboard. Controller Error controller failure Message Beeps Probable Cause Recommended Action Table 6-1. Verify correct ROM location 3. Options Not Set configuration incorrect 163 - Error Messages and Codes Chapter 6.1 Introduction This chapter provides Power On Self Test error messages, DIAGNOSTIC error codes, and memory error codes. Not Set or date 164 - incorrect XX000YY ZZ - 201 None RAM failure...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... case, the Recommended Action column lists steps necessary to resolve the error condition. Interface Error failure 402 - Replace plasma display Adapter Error 2 Short plasma display controller board controller board 2. Disk 0 None Fixed disk drive/ Run DIAGNOSTICS. Run DIAGNOSTICS. display Chapter 6.3 Diagnostic Error Codes DIAGNOSTIC error codes occur if the system recognizes a problem while running the COMPAQ DIAGNOSTICS Program. Replace keyboard. Replace plasma display 601 - Check jumper setting. Message Beeps Probable Cause Recommended...
... case, the Recommended Action column lists steps necessary to resolve the error condition. Interface Error failure 402 - Replace plasma display Adapter Error 2 Short plasma display controller board controller board 2. Disk 0 None Fixed disk drive/ Run DIAGNOSTICS. Run DIAGNOSTICS. display Chapter 6.3 Diagnostic Error Codes DIAGNOSTIC error codes occur if the system recognizes a problem while running the COMPAQ DIAGNOSTICS Program. Replace keyboard. Replace plasma display 601 - Check jumper setting. Message Beeps Probable Cause Recommended...
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... of program in write/read test. Replace the speaker and retest. 3. Verify cable connections. 3. Check switch settings. 4. Table 6-3. Replace the system board and 202 - 03 RAM/ROM protect test failed. Verify that speaker is connected. 2. Memory Error Codes (2xx - Error Code Error Description Recommended Action 114 - 01 Speaker test failed. 1. module(s) or memory board and retest for error codes 203 - 01 203 - 02 Error during restore of range. 112 - 12 Speed test variable...
... of program in write/read test. Replace the speaker and retest. 3. Verify cable connections. 3. Check switch settings. 4. Table 6-3. Replace the system board and 202 - 03 RAM/ROM protect test failed. Verify that speaker is connected. 2. Memory Error Codes (2xx - Error Code Error Description Recommended Action 114 - 01 Speaker test failed. 1. module(s) or memory board and retest for error codes 203 - 01 203 - 02 Error during restore of range. 112 - 12 Speed test variable...
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... 9, "Jumper and Switch Settings"). Check the keyboard connector. codes 301 - 01 through 498 - 00: 402 - 01 Printer data register failed 402 - 02 Printer control register failed. 1. Replace the system board and retest. 304 - 01 Keyboard repeat key test failed. 304 - 02 Unable to enter mode 3. 304 - 03 Incorrect scan code from keyboard. 304 - 04 No make code observed. 304 - 05 Cannot disable repeat key feature. 304 - 06...
... 9, "Jumper and Switch Settings"). Check the keyboard connector. codes 301 - 01 through 498 - 00: 402 - 01 Printer data register failed 402 - 02 Printer control register failed. 1. Replace the system board and retest. 304 - 01 Keyboard repeat key test failed. 304 - 02 Unable to enter mode 3. 304 - 03 Incorrect scan code from keyboard. 304 - 04 No make code observed. 304 - 05 Cannot disable repeat key feature. 304 - 06...
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... and 1. Replace the Serial/Parallel and control registers failed. Replace the system board and retest. Interface Board, if applicable, and retest. Video Error Codes (5xx - If a printer is turned ON and in the online mode. Printer interrupt, loopback, 3. controller board and retest. xx Range) (For External Video Display Units Only) Error Code Error Description Recommended Action 501 - 01 Video controller test failed. system board (see Chapter 9, "Jumper and Switch Settings"). Replace the video display 503 - 01 Video attribute...
... and 1. Replace the Serial/Parallel and control registers failed. Replace the system board and retest. Interface Board, if applicable, and retest. Video Error Codes (5xx - If a printer is turned ON and in the online mode. Printer interrupt, loopback, 3. controller board and retest. xx Range) (For External Video Display Units Only) Error Code Error Description Recommended Action 501 - 01 Video controller test failed. system board (see Chapter 9, "Jumper and Switch Settings"). Replace the video display 503 - 01 Video attribute...
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... 609 - xx Diskette Reset Controller Test 609 - 05 Failed to clear change line status 610 - 22 Failed to Reset Controller 610 - xx Range) Error Code Error Description Recommended Action 802 - 01 Video memory test failed. 1. Replace monochrome board and 824 - 01 Monochrome text mode test retest. Replace system board and retest. Check the jumper settings on the system board and retest (see Chapter 9, "Jumper and Switch Settings"). 3. rerun SETUP Table 6-8. Table...
... 609 - xx Diskette Reset Controller Test 609 - 05 Failed to clear change line status 610 - 22 Failed to Reset Controller 610 - xx Range) Error Code Error Description Recommended Action 802 - 01 Video memory test failed. 1. Replace monochrome board and 824 - 01 Monochrome text mode test retest. Replace system board and retest. Check the jumper settings on the system board and retest (see Chapter 9, "Jumper and Switch Settings"). 3. rerun SETUP Table 6-8. Table...
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... a failure in the memory support circuitry, not the memory. Replace the plasma display controller board and retest. 2. The TEST programs attempt to isolate the memory fault to a specific chip, then generate a memory error code that identifies the system board, memory board, or the defective memory module to a specific memory address. The physical location of a DIAGNOSTIC test. 5103 - 01 Video Attribute Test 5104 - 01 Video Character Set Test 5105 - 01 Video 80 x 25 Mode 9 x 14 Character...
... a failure in the memory support circuitry, not the memory. Replace the plasma display controller board and retest. 2. The TEST programs attempt to isolate the memory fault to a specific chip, then generate a memory error code that identifies the system board, memory board, or the defective memory module to a specific memory address. The physical location of a DIAGNOSTIC test. 5103 - 01 Video Attribute Test 5104 - 01 Video Character Set Test 5105 - 01 Video 80 x 25 Mode 9 x 14 Character...
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... for defective memory isolation. Ignore Memory Locations After identifying X and Y use Figures 6-1, 6-2, 6-3, and 6-4 to the design of the COMPAQ PORTABLE 386 Personal Computer, the remaining codes in an 8 digit format (XX000Y ZZ). Replace the 4 Megabyte Memory Extension Board with PN 107688-001. The 8 digit code is defined as follows: XX 000 Y ZZ Failed data bit. Ignore. | Megabyte where error occurred. Memory Replacement Replace 512 Kbyte Memory Modules J1 through...
... for defective memory isolation. Ignore Memory Locations After identifying X and Y use Figures 6-1, 6-2, 6-3, and 6-4 to the design of the COMPAQ PORTABLE 386 Personal Computer, the remaining codes in an 8 digit format (XX000Y ZZ). Replace the 4 Megabyte Memory Extension Board with PN 107688-001. The 8 digit code is defined as follows: XX 000 Y ZZ Failed data bit. Ignore. | Megabyte where error occurred. Memory Replacement Replace 512 Kbyte Memory Modules J1 through...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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...COMPAQ PORTABLE 386) 1 Fixed Disk Drive Power Cable (COMPAQ PORTABLE 386) 1 Modem Cable 1 Display Controller Data Cable 1 Chapter 7.8 Miscellaneous Hardware Kit Table 7-7 lists the spare parts in the cable kit (PN 107382-001) for the COMPAQ PORTABLE 386 and COMPAQ PORTABLE III Personal Computers. Rear Panel Short 10 Drive Shoulder Bolt 10 Drive Vibration Isolators 10 Cable Tie, 3/4 inch wide, 3 7/8 inch wide 50 Strain Relief Bracket 2 Strain Relief Clip 2 Brightness Control Knob 5 Mandrel 2 Roller 4 Plasma Display Hinge 2 Latch 4 Keyboard Connector Cover...
...COMPAQ PORTABLE 386) 1 Fixed Disk Drive Power Cable (COMPAQ PORTABLE 386) 1 Modem Cable 1 Display Controller Data Cable 1 Chapter 7.8 Miscellaneous Hardware Kit Table 7-7 lists the spare parts in the cable kit (PN 107382-001) for the COMPAQ PORTABLE 386 and COMPAQ PORTABLE III Personal Computers. Rear Panel Short 10 Drive Shoulder Bolt 10 Drive Vibration Isolators 10 Cable Tie, 3/4 inch wide, 3 7/8 inch wide 50 Strain Relief Bracket 2 Strain Relief Clip 2 Brightness Control Knob 5 Mandrel 2 Roller 4 Plasma Display Hinge 2 Latch 4 Keyboard Connector Cover...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... on the COMPAQ PORTABLE 386 Personal Computer to become familiar with the various part numbers and locations. Chapter 8.2 Preparation Procedure Before beginning the procedures in this chapter, complete the following steps: 1. After completing all removal and replacement procedures, run the DIAGNOSTICS Program on ) from the computer (Figure 8-1). Chapter 8.3 Keyboard Assembly To remove the keyboard assembly: Chapter 8. Turn off the computer. 2. Removal and Replacement Procedures...
... on the COMPAQ PORTABLE 386 Personal Computer to become familiar with the various part numbers and locations. Chapter 8.2 Preparation Procedure Before beginning the procedures in this chapter, complete the following steps: 1. After completing all removal and replacement procedures, run the DIAGNOSTICS Program on ) from the computer (Figure 8-1). Chapter 8.3 Keyboard Assembly To remove the keyboard assembly: Chapter 8. Turn off the computer. 2. Removal and Replacement Procedures...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... slot allows memory expansion using any of the internal modems. Both the COMPAQ 1200 Baud Internal Modem and the COMPAQ 2400 Baud Internal Modem, are approved for use with the COMPAQ PORTABLE 386 Personal Computer. Press the top tab and disconnect the LED/speaker and keyboard cables from the system board (Figure 8-14). Remove the 32 bit memory/modem interface board (see Section 8.8). The top slot holds the second serial interface board...
... slot allows memory expansion using any of the internal modems. Both the COMPAQ 1200 Baud Internal Modem and the COMPAQ 2400 Baud Internal Modem, are approved for use with the COMPAQ PORTABLE 386 Personal Computer. Press the top tab and disconnect the LED/speaker and keyboard cables from the system board (Figure 8-14). Remove the 32 bit memory/modem interface board (see Section 8.8). The top slot holds the second serial interface board...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... board. Each memory expansion board (or combination) fits into the same options compartment slot in combination with the 4 megabyte memory extension board. A second memory upgrade kit can be used alone or in two of RAM. Chapter 8.11 Memory Expansion Boards Three memory expansion boards are available for a quick reference to the board. The one megabyte of RAM surface mounted to the memory expansion process. This board may be used in the COMPAQ PORTABLE 386...
... board. Each memory expansion board (or combination) fits into the same options compartment slot in combination with the 4 megabyte memory extension board. A second memory upgrade kit can be used alone or in two of RAM. Chapter 8.11 Memory Expansion Boards Three memory expansion boards are available for a quick reference to the board. The one megabyte of RAM surface mounted to the memory expansion process. This board may be used in the COMPAQ PORTABLE 386...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... disables the fail safe timer. o E20 indicates whether or not an 80387 coprocessor is to be used . Chapter 9. When using the tables in this procedure may result in CMOS memory. o E23 selects the plasma display mode at power on. These settings need to change the system configuration information stored in Power On Self Test errors. o E3, E4, E8, and E9 set the parallel interface options. Chapter 9.2 System Board The COMPAQ PORTABLE 386...
... disables the fail safe timer. o E20 indicates whether or not an 80387 coprocessor is to be used . Chapter 9. When using the tables in this procedure may result in CMOS memory. o E23 selects the plasma display mode at power on. These settings need to change the system configuration information stored in Power On Self Test errors. o E3, E4, E8, and E9 set the parallel interface options. Chapter 9.2 System Board The COMPAQ PORTABLE 386...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... the Serial/Parallel Interface Board and Table 9-15 lists appropriate switch settings for Jumper JP3. Jumper JP3 - Selects RGB or COMPAQ Dual Mode Monitor Jumper Setting Function JP3, Pins 1 and 2 Selects COMPAQ Dual Mode Monitor (3xxh) (default). Table 9-14. Jumper P1 - Selects Monitor Type Jumper Setting Function P1, Pins 1 and 2 Selects a COMPAQ Color Monitor or compatible enhanced color monitor (default). P1, Pins 2 and 3 Selects an external COMPAQ Dual Mode Monitor or an RGB color monitor. Serial/Parallel Interface Board Switch Settings...
... the Serial/Parallel Interface Board and Table 9-15 lists appropriate switch settings for Jumper JP3. Jumper JP3 - Selects RGB or COMPAQ Dual Mode Monitor Jumper Setting Function JP3, Pins 1 and 2 Selects COMPAQ Dual Mode Monitor (3xxh) (default). Table 9-14. Jumper P1 - Selects Monitor Type Jumper Setting Function P1, Pins 1 and 2 Selects a COMPAQ Color Monitor or compatible enhanced color monitor (default). P1, Pins 2 and 3 Selects an external COMPAQ Dual Mode Monitor or an RGB color monitor. Serial/Parallel Interface Board Switch Settings...
Compaq Portable 386 Personal Computer Maintenance and Service Guide
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... the system operational and the stored data intact if the hardware for one drive may be used with the COMPAQ PORTABLE 386 Personal Computer with the fixed disk drive expansion unit contains several software utilities. NOTE: For information on both drives to access the capabilities of using two controllers. Chapter 10.2 System Configuration NOTE: Internal cables are described below: o Maximum storage. In mirroring, two identical fixed disk drives are duplexed, one fixed disk drive fails...
... the system operational and the stored data intact if the hardware for one drive may be used with the COMPAQ PORTABLE 386 Personal Computer with the fixed disk drive expansion unit contains several software utilities. NOTE: For information on both drives to access the capabilities of using two controllers. Chapter 10.2 System Configuration NOTE: Internal cables are described below: o Maximum storage. In mirroring, two identical fixed disk drives are duplexed, one fixed disk drive fails...
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... must install the EXTDISK.SYS device driver in memory. NOTE: Each time you use the FDISK utility with the fixed disk drive expansion unit must be partitioned before you run SETUP, insert the EXTDISK diskette into drive A and copy the EXTDISK.SYS file to the directory that contains the MS-DOS files. Use the FDISK utility to partition each fixed disk drive that diskette. Chapter 10.3 Setting Up the Fixed Disk Drive...
... must install the EXTDISK.SYS device driver in memory. NOTE: Each time you use the FDISK utility with the fixed disk drive expansion unit must be partitioned before you run SETUP, insert the EXTDISK diskette into drive A and copy the EXTDISK.SYS file to the directory that contains the MS-DOS files. Use the FDISK utility to partition each fixed disk drive that diskette. Chapter 10.3 Setting Up the Fixed Disk Drive...