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Troubleshooting
Related Manuals for Mitsubishi Electric APRICOT 340
Summary of Contents for Mitsubishi Electric APRICOT 340
- Page 1 OWNER’ S HANDBOOK Apricot 340 apricot MITSUBISHI ELECTRIC...
- Page 2 APRICOT 340 & XEN PC OWNER’S HANDBOOK APRICOT VS340 APRICOT MS340 APRICOT LS340 APRICOT XEN PC...
- Page 3 Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows 95 are registered trademarks of Microsoft Corporation. SIMM is a registered trademark of Wang Laboratories. LOC Technology and KeyLOC are trademarks of Apricot Computers Limited. Other trademarks are the properties of their respective owners. Information contained in this document is subject to change without notice and does not represent a commitment on the part of Apricot Computers Limited.
- Page 4 Dispose of a discharged battery promptly and in accordance with the manufacturer’s recommended instructions. S a f e t y & R e g u l a t o r y N o t i c e s APRICOT 340 OWNER’S HANDBOOK...
- Page 5 Sound power level is less than 70 dB(A) according to DIN 45635 Part 19 (ISO 7779). Die Deutsche Akoustische Lärm-Regulierung Der Grad der Klangstärke ist weniger als 70 dB (A) je nach DIN 45635 Teil 19 (ISO 7779). APRICOT 340 OWNER’S HANDBOOK...
- Page 6 S a f e t y & R e g u l a t o r y N o t i c e s EN55022 Class B EN50082-2 EN60555 Parts 2 and 3 73/23/EEC 89/336/EEC 93/668/EEC APRICOT 340 OWNER’S HANDBOOK...
- Page 7 Avoid prolonged or repeated contact with skin. Wash thoroughly with soap and water after handling. Avoid contact with eyes and inhalation of fumes. Do not ingest. APRICOT 340 OWNER’S HANDBOOK...
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Page 8: Table Of Contents
If BIOS Setup starts on its own Control keys Main menu screen System Summary Devices and I/O Ports Date and Time System Security Start Options Advanced Setup C o n t e n t s APRICOT 340 OWNER’S HANDBOOK 2/11 3/11 3/12... - Page 9 Installing the card Upgrading Inside the system unit Adding more system memory Adding cache memory Adding more video memory Upgrading the processor Adding a removable-media drive Adding a hard disk drive APRICOT 340 OWNER’S HANDBOOK 3/13 3/14 7/10 7/12 7/16 7/21...
- Page 10 Inside the System Unit Anti-static precautions Opening the system unit Motherboard layout System connectors Changing jumper settings Replacing the configuration battery Technical Information Specifications Physical characteristics Electrical characteristics Port characteristics C o n t e n t s APRICOT 340 OWNER’S HANDBOOK A/10...
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Page 11: Introducing
Make a note of the manufacturer’s data recorded on the various components (product codes, serial numbers, etc.). A service engineer may need this information if the computer develops a fault. I n t r o d u c i n g installation diskettes APRICOT 340 OWNER’S HANDBOOK additional... -
Page 12: Pictorial Guide To The System Unit
I n t r o d u c i n g Pictorial guide to the system unit APRICOT 340 OWNER’S HANDBOOK... - Page 13 (shown closed): hinges down to reveal the removable- media drive bay. 3.5" diskette drive. system lock: prevents unauthorized access to the inside of the system unit. I n t r o d u c i n g APRICOT 340 OWNER’S HANDBOOK...
- Page 14 I n t r o d u c i n g APRICOT 340 OWNER’S HANDBOOK...
- Page 15 18 air vents: do not block these vents or the system will overheat. I n t r o d u c i n g ): (MS/LS models) mainly intended ): (MS/LS models) intended for a line- ): (MS/LS models) intended for APRICOT 340 OWNER’S HANDBOOK...
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Page 16: Summary Of Features
The Apricot 340 range is divided into three series. The economical VS-series (Apricot VS340 and Apricot XEN PC), the multimedia MS-series (Apricot MS340), and the business-minded LS-series (Apricot LS340 and Apricot LS340E). - Page 17 Do not attempt to use the computer’s energy-saving features with a monitor that does not support DPMS; the monitor may be permanently damaged. systems applications APRICOT 340 OWNER’S HANDBOOK I n t r o d u c i n g that...
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Page 18: Getting Started
This chapter will tell you all you need to know in order to start work. The chapters after this one deal with the BIOS Setup utility and various removable-media drives. Warning Read the separate Power Connection Guide before using the computer for the first time. APRICOT 340 OWNER’S HANDBOOK... -
Page 19: General Advice
Ensure that the system unit is positioned close to the AC power outlet, and that the plug is easily accessible. To prevent fire and electric shock, do not expose any part of the system unit to rain or moisture. APRICOT 340 OWNER’S HANDBOOK... -
Page 20: Connecting The Components
Note that some options for which you have installation guides may have already been installed for you at the factory or by your supplier. G e t t i n g S t a r t e d APRICOT 340 OWNER’S HANDBOOK... - Page 21 AC power outlet. 10. Where appropriate, connect power cords between your peripherals and nearby, grounded AC power outlets. 11. If your AC power outlets have switches, set them to their On positions. APRICOT 340 OWNER’S HANDBOOK...
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Page 22: Turning On And Booting The Computer
G e t t i n g S t a r t e d OWER button lights to show that the system unit is OWER OWER APRICOT 340 OWNER’S HANDBOOK button. The green button is pressed,... - Page 23 If you want to use another monitor, make sure that it supports the VESA standard for Display Power Management Signalling; if it doesn’t, it may be permanently damaged. APRICOT 340 OWNER’S HANDBOOK 3 to continue. By doing so you are...
- Page 24 The computer may not initialize itself properly if you turn it off then on again in quick succession. G e t t i n g S t a r t e d button again. The OWER APRICOT 340 OWNER’S HANDBOOK...
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Page 25: Backing-Up The Pre-Installed Software
Any copy you make of pre-installed software must be used only as a back-up copy, in case the pre-installed version is lost. You are not allowed to use installation diskettes created from disk images to install the software onto another computer. APRICOT 340 OWNER’S HANDBOOK... -
Page 26: Using The 3.5-Inch Diskette Drive
Push the diskette all the way in until it engages with the drive mechanism. When the drive’s button pops out, the diskette is EJECT fully engaged. APRICOT 340 OWNER’S HANDBOOK... - Page 27 With the tab in this position, you can read, copy or print files from the diskette, but you cannot create, rename or delete any files. The BIOS Setup utility can completely disable the diskette drive. 2/10 APRICOT 340 OWNER’S HANDBOOK button on the drive. The drive mechanism EJECT...
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Page 28: Using Help
.TXT file extensions, can be read by most text editors and wordprocessing programs. Alternatively they can be displayed, one screenful at a time, using the MS-DOS commands Type and More; for example: TYPE README.1ST | MORE APRICOT 340 OWNER’S HANDBOOK 2/11... -
Page 29: Using The Bios Setup Utility
Your computer arrives already configured, but may need to be configured again after you add or remove add-on options such as memory modules or expansion cards. APRICOT 340 OWNER’S HANDBOOK... -
Page 30: Starting Bios Setup
The computer’s configuration may have changed, for example by the addition of more system memory, more cache memory, or an expansion card. In this case you may have to define the new configuration. APRICOT 340 OWNER’S HANDBOOK 1 key to start the... -
Page 31: Control Keys
CMOS memory. If you save the changes, the computer will reboot on exiting the utility. The table on the next page summarizes these controls. APRICOT 340 OWNER’S HANDBOOK... - Page 32 LEFT ARROW RIGHT ARROW ENTER PAGE UP PAGE DOWN APRICOT 340 OWNER’S HANDBOOK Move the highlight bar around the screen from one line or one field to another. Scroll through the possible selections for the currently-highlighted item. Choose the currently-highlighted item.
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Page 33: Main Menu Screen
Load Default Settings option or pressing U s i n g t h e B I O S S e t u p U t i l i t y bullet in front of them have further menus or dialog APRICOT 340 OWNER’S HANDBOOK... -
Page 34: System Summary
Diskette drive A, which is fitted by default, is invariably a 1.44 Mbyte 3.5" drive. If a second floppy disk is fitted, it is usually a 1.2 Mbyte 5.25" drive. APRICOT 340 OWNER’S HANDBOOK Description Used for output only. Bi-directional Simple two-way data. - Page 35 BIOS to access hard disk drives of greater than 504 Mbytes capacity. You might need to select Standard CHS if your operating system does Extended CHS for large drives. APRICOT 340 OWNER’S HANDBOOK support...
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Page 36: Date And Time
The password options are intended for computers that lack more sophisticated security systems. You should not use these options on an Apricot LS340 computer with a built-in LOC Technology security system. APRICOT 340 OWNER’S HANDBOOK LEFT ARROW RIGHT (+) and (–) keys... - Page 37 A dialog asks you to confirm that you want to replace any existing power-on password. Press U s i n g t h e B I O S S e t u p U t i l i t y to confirm (or otherwise). ENTER APRICOT 340 OWNER’S HANDBOOK DOWN ARROW...
- Page 38 If you define both an administrator and a power-on password, the computer accepts only the administrator password. 3/10 APRICOT 340 OWNER’S HANDBOOK 1 is pressed during start-up the . It is important that authorized users of ENTER to confirm.
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Page 39: Start Options
First Startup Device, it tries the Second Startup Device, and so on. U s i n g t h e B I O S S e t u p U t i l i t y APRICOT 340 OWNER’S HANDBOOK 3/11... -
Page 40: Advanced Setup
A simple dialog allows you to enable or disable the computer’s external memory cache (if fitted). Some older software is speed sensitive and on rare occasions you may need to disable the cache. See the chapter on “Upgrading” for more information about adding cache memory. 3/12 APRICOT 340 OWNER’S HANDBOOK... -
Page 41: Isa Legacy Resources
There is a separate option for each resource: memory, I/O ports, DMA channels and interrupts. See the chapter entitled “Adding U s i n g t h e B I O S S e t u p U t i l i t y APRICOT 340 OWNER’S HANDBOOK 3/13... -
Page 42: Power Management
Display Power Management Signalling (DPMS). If “Enabled”, the monitor will go blank when the computer enters standby mode (see above). Another way of saving monitor power is by using the built-in power-saving features of Windows 95, or the Cirrus Logic Display 3/14 APRICOT 340 OWNER’S HANDBOOK... - Page 43 The monitor supplied with your computer is designed to work with these energy-saving features. If you want to use another monitor, make sure that it supports DPMS; if it doesn’t, it may be permanently damaged. APRICOT 340 OWNER’S HANDBOOK 3/15...
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Page 44: Using Floppy Disk, Cd-Rom And Tape Drives
Inserting a floppy disk Insert the disk into the drive slot with the read/write aperture foremost. When the disk is fully inserted, turn the locking lever one- quarter turn clockwise to engage the drive mechanism. APRICOT 340 OWNER’S HANDBOOK... - Page 45 (A) with a self-adhesive tab (B); such tabs are typically supplied with new floppy disks. With the tab in this position, you can read or print files from the disk, but you cannot create, rename or delete any files. APRICOT 340 OWNER’S HANDBOOK...
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Page 46: Using A Cd-Rom Drive
The laser beam inside the CD-ROM drive is harmful to the eyes if exposed. Do not attempt to disassemble the CD-ROM drive. If a fault occurs, call an authorized maintainer. COMPACT button (works only when drive is powered) EJECT APRICOT 340 OWNER’S HANDBOOK... - Page 47 Keep CDs well away from dust and moisture, and avoid touching the surface of the CD. Also, avoid extremes of temperature and exposure to direct sunlight. APRICOT 340 OWNER’S HANDBOOK button on the front of the drive. EJECT EJECT button.
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Page 48: Using An Ftd Travan Tape Drive
Inserting a cartridge Remove the cartridge from its plastic holder. Hold the cartridge so that the metal plate faces downwards, as shown below. Slide the cartridge into the drive slot until you feel a slight resistance. APRICOT 340 OWNER’S HANDBOOK... - Page 49 Write-protecting a cartridge A cartridge can be write-protected by sliding the red switch on the cartridge to the locked position (marked with a closed padlock symbol) as shown below. APRICOT 340 OWNER’S HANDBOOK...
- Page 50 Gently rotate the capstan and continue rubbing until the entire surface is clean. Wait for at least three minutes before using the tape drive. This allows any residual alcohol to evaporate. APRICOT 340 OWNER’S HANDBOOK...
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Page 51: Using A Scsi Qic Tape Drive
Keep tape cartridges well away from magnetic objects, and equipment that generates magnetic fields. Avoid extremes of temperature and exposure to direct sunlight; otherwise, the data recorded on the tape may become corrupted. APRICOT 340 OWNER’S HANDBOOK in the direction of the arrow (that RECORD... -
Page 52: Using A Scsi Dds-2 Tape Drive
The drive can also write uncompressed data under software control. When reading a cassette, the DDS-2 drive automatically distinguishes compressed and uncompressed data and either decompresses it or passes it through unaltered as appropriate. button. EJECT APRICOT 340 OWNER’S HANDBOOK... - Page 53 A media warning can also indicate that a pre-recorded audio DAT cassette has been inserted by mistake. 4/10 APRICOT 340 OWNER’S HANDBOOK Amber Drive status Cassette inserted. Cassette inserted: tape being read or written.
- Page 54 A load sequence checks ambient humidity, the tape format and data integrity. Unless the tape is blank the tape log, which contains a history of usage of the tape, is read into the drive’s memory. APRICOT 340 OWNER’S HANDBOOK 4/11...
- Page 55 LED status cannot be relied upon to determine if the cassette needs to be copied and replaced. 4/12 APRICOT 340 OWNER’S HANDBOOK button on the front of the drive (depending on your EJECT button may be disabled while the drive...
- Page 56 You cannot rewind a cleaning cassette. Caution Do not attempt to use an ordinary audio DAT cleaning cassette. The drive will be unable to recognise it as a cleaning cassette. APRICOT 340 OWNER’S HANDBOOK 4/13...
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Page 57: Maintaining And Transporting
M a i n t a i n i n g & T r a n s p o r t i n g APRICOT 340 OWNER’S HANDBOOK... - Page 58 Inside the mouse there are three plastic rollers. Using a cotton swab moistened with a solvent cleaner, gently wipe off any oil or dust that has collected on the rollers, rotating them to reach all surfaces. APRICOT 340 OWNER’S HANDBOOK...
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Page 59: Transporting The Computer
The voltage and frequency of the commercial AC power supply. The type of plug required for the AC power outlets. M a i n t a i n i n g & T r a n s p o r t i n g APRICOT 340 OWNER’S HANDBOOK... - Page 60 For further details, see the Power Connection Guide. APRICOT 340 OWNER’S HANDBOOK AC power supply (voltage and frequency) 100 - 120 volt AC, 50 - 60 Hz...
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Page 61: Adding Expansion Cards
Never carry out any work inside the computer with AC power applied. Always turn off the computer and unplug all power cords before starting work. A d d i n g E x p a n s i o n C a r d s APRICOT 340 OWNER’S HANDBOOK... - Page 62 Slot 3 (upper) PCI/ISA Slot 2 (middle) Slot 1 (lower) APRICOT 340 OWNER’S HANDBOOK Description This slot can accommodate a full-length PCI or ISA card (a full-length card is one that runs the full length of the computer from front to back).
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Page 63: Configuring The Card
A d d i n g E x p a n s i o n C a r d s APRICOT 340 OWNER’S HANDBOOK... - Page 64 IRQ3 Serial port B IRQ4 Serial port A IRQ5 Parallel port (alternative) Audio in MS/LS models IRQ6 Diskette controller IRQ7 Parallel port (default) APRICOT 340 OWNER’S HANDBOOK Default assignment IRQ8 Real time clock IRQ9 IRQ10 IRQ11 IRQ12 Mouse IRQ13 Coprocessor...
- Page 65 A d d i n g E x p a n s i o n C a r d s Default assignment 8-bit audio (MS/LS models) Diskette/floppy disk controller Parallel port in Extended Capabilities Port mode System 16-bit audio (MS/LS models) APRICOT 340 OWNER’S HANDBOOK...
- Page 66 300h-301h 330h-331h 378h-37Fh 388h-38Fh 3B0h-3BFh 3B4h, 3B5h, 3BAh 3C0h-3C5h 3C6h-3C9h 3CAh-3DFh 3F0h-3F7h 3F8h-3FFh APRICOT 340 OWNER’S HANDBOOK Default assignment Hard disk drive controller Game I/O Audio: SoundBlaster-compatibility (default) Audio: SoundBlaster-compatibility (alternative) Parallel port 2 Alternate VGA Serial port B Audio: MIDI...
- Page 67 16 Kbytes = A d d i n g E x p a n s i o n C a r d s 1000h 32 Kbytes = 2000h 64 Kbytes = 4000h 128 Kbytes = 20000h APRICOT 340 OWNER’S HANDBOOK 8000h 10000h...
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Page 68: Installing The Card
If the card you are installing is configured by the means of jumpers or switches, check that it is correctly configured before proceeding. APRICOT 340 OWNER’S HANDBOOK 1 PCI expansion slot 2 ISA expansion slots 3 blanking plates... - Page 69 10. Secure the card by replacing the screw that you removed in Step 5. 11. Connect any necessary signal cables to the card. A d d i n g E x p a n s i o n C a r d s APRICOT 340 OWNER’S HANDBOOK...
- Page 70 This is necessary so that any PCI card fitted can be configured automatically and won’t try to use the same settings. See the chapter on “Using the BIOS Setup Utility” for more information. 6/10 APRICOT 340 OWNER’S HANDBOOK...
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Page 71: Upgrading
The only tool required to complete the installation of any of the upgrades is a small cross-head screwdriver. Warning Never carry out any work inside the computer with AC power applied. Always turn off the computer and unplug all power cords before starting work. APRICOT 340 OWNER’S HANDBOOK... -
Page 72: Inside The System Unit
U p g r a d i n g Inside the system unit APRICOT 340 OWNER’S HANDBOOK... - Page 73 11 CD-ROM audio connector: this can be used only on Apricot MS340 and LS340 systems. See the label inside the system unit lid for up-to-date information on the layout of the motherboard. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK...
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Page 74: Adding More System Memory
Appendix A, “Inside the System Unit”. If there is a removable-media drive fitted, unplug its power and signal cables from the rear of the drive. APRICOT 340 OWNER’S HANDBOOK... - Page 75 2 Mb 32 Mb 4 Mb 32 Mb 8 Mb 32 Mb 16 Mb 32 Mb 32 Mb APRICOT 340 OWNER’S HANDBOOK 2 Mb 4 Mb 2 Mb 4 Mb 8 Mb 2 Mb 4 Mb 8 Mb 16 Mb...
- Page 76 Take the SIMM out of its anti-static packaging. Hold it by its edges and avoid touching the metal contacts. Note that the SIMM is not symmetrical; there is a small cut-out or notch in one end. APRICOT 340 OWNER’S HANDBOOK to the...
- Page 77 All you have to do is confirm the new configuration in the BIOS Setup utility (see the chapter on “Using the BIOS Setup Utility” for more information). U p g r a d i n g angle to the vertical, APRICOT 340 OWNER’S HANDBOOK...
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Page 78: Adding Cache Memory
You can improve the performance of the computer significantly by adding cache memory. Note that in Apricot 340 computers only the first 64 Mbytes of RAM can be cached. To fit cache memory: Turn off the computer and unplug all power cords. - Page 79 (POST) detects the change in configuration. All you have to do is confirm the new configuration in the BIOS Setup utility (see the chapter on “Using the BIOS Setup Utility” for more information). U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK...
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Page 80: Adding More Video Memory
In either case, the bevelled or notched end must be aligned with the bevelled corner on the socket itself, as shown in the following illustration. 7/10 APRICOT 340 OWNER’S HANDBOOK... - Page 81 Replace the system unit cover. You can now reconfigure your operating system to use the expanded capabilities of the video controller. See your operating system documentation for details. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/11...
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Page 82: Upgrading The Processor
Use the illustration at the start of this chapter to locate the ZIF socket containing the processor. The heat sink is held onto the top of the processor by a metal clip that hooks onto the processor socket. 7/12 APRICOT 340 OWNER’S HANDBOOK... - Page 83 There is a thin metal foil in a layer of sticky thermal bonding compound between the heat sink and the processor. This makes it difficult to pull the heat sink directly away from the processor. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/13...
- Page 84 If the processor is misaligned it will not go into the socket, and any attempt to force it will damage the processor, or the socket, or both. Move the securing lever to the locked position. Apply just enough pressure to overcome the resistance offered by the lever. 7/14 APRICOT 340 OWNER’S HANDBOOK...
- Page 85 System Unit”, for more information about locating and adjusting motherboard jumper settings. If necessary, replace the expansion cards you removed earlier. Replace the system unit cover. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/15...
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Page 86: Adding A Removable-Media Drive
Appendix A, “Inside the System Unit”. 7/16 APRICOT 340 OWNER’S HANDBOOK Configuration instructions The only configuration required is to set the drive select jumpers at the rear of the drive. - Page 87 Break out the blanking plate by bending it backwards and forwards several times. Remove the new drive from its packaging and ensure that it is correctly configured. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/17...
- Page 88 Replace the two screws that secure the drive tray. 7/18 APRICOT 340 OWNER’S HANDBOOK A C T C O M P...
- Page 89 Failure to do so may damage the drive or the motherboard or both. 12. Replace the system unit cover. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/19...
- Page 90 This cable should be connected between the SCSI adapter card and the rear of the drive. The illustration below shows a typical routing of the cable. 7/20 APRICOT 340 OWNER’S HANDBOOK FLOPPY ) and a CD-audio cable (which CDROM...
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Page 91: Adding A Hard Disk Drive
Remove the two screws that secure the removable-media drive tray. Slide the tray backwards slightly and lift it out of the system unit. Put it down on a flat, anti-static surface. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/21... - Page 92 Turn the drive bay upside-down and rest it on a flat surface with the front of the diskette drive towards you. 10. Ensure that the drive you are adding is properly configured as either master or slave. 7/22 APRICOT 340 OWNER’S HANDBOOK...
- Page 93 13. Turn the bay upright and replace it in the system unit. Align the flanges on the bay with the lugs in the base of the system unit, then slide the drive bay forwards slightly. U p g r a d i n g APRICOT 340 OWNER’S HANDBOOK 7/23...
- Page 94 With Windows 95, you do this by using the MS-DOS Fdisk program to create partitions on the disk. The Fdisk program can be run in an MS-DOS window within Windows 95. Type Help Fdisk 7/24 APRICOT 340 OWNER’S HANDBOOK EJECT...
- Page 95 When you run Fdisk, it assumes that you want to work with the first, or master, drive (it says the ). To Current fixed disk drive switch attention to the slave drive, choose Select next fixed disk (option 5) from the main menu. drive APRICOT 340 OWNER’S HANDBOOK 7/25...
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Page 96: Troubleshooting
If the replacement fuse does not blow, reconnect a peripheral and turn it on. Repeat this step for each peripheral in turn. T r o u b l e s h o o t i n g APRICOT 340 OWNER’S HANDBOOK... - Page 97 Try running the BIOS Setup utility to reconfigure the system. Open up the system unit and check that all internal signal and power cables are securely connected. If the problem persists, call your supplier or authorized maintainer. APRICOT 340 OWNER’S HANDBOOK...
- Page 98 No more memory >1Mb available 1805 Checksum error or 0 size option ROM 1962 No bootable device 2400 Display adapter failed ; using alternate 2462 Video configuration 5962 IDE CD-ROM configuration 8603 Pointer device has been removed APRICOT 340 OWNER’S HANDBOOK...
- Page 99 Diskette read failure No boot sector on fixed disk Fixed disk read failure No boot device available APRICOT 340 OWNER’S HANDBOOK Explanation The diskette drive contains a non-system diskette. Replace it with a system diskette and press F1. The diskette is either not formatted or defective.
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Page 100: Troubleshooting Checklist
(if it is an ISA T r o u b l e s h o o t i n g APRICOT 340 OWNER’S HANDBOOK... - Page 101 Setup utility to check that the drive is correctly specified, and that the drive’s controller is enabled. Check also that the disk has been correctly formatted, and that the permissions assigned by the operating system allow the intended access. APRICOT 340 OWNER’S HANDBOOK...
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Page 102: Inside The System Unit
It is also a good idea to use an ionizer or humidifier to remove static from the air. I n s i d e t h e S y s t e m U n i t APRICOT 340 OWNER’S HANDBOOK... - Page 103 Never touch the components or electrical contacts on the motherboard or on expansion cards. In general, do not handle static-sensitive items unnecessarily. Keep all conductive material, and food and drink, away from your work area and the open computer. APRICOT 340 OWNER’S HANDBOOK...
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Page 104: Opening The System Unit
Refitting the cover is the reverse of removal. Take effective anti- static precautions while the top cover is off. I n s i d e t h e S y s t e m U n i t APRICOT 340 OWNER’S HANDBOOK... -
Page 105: Motherboard Layout
I n s i d e t h e S y s t e m U n i t Motherboard layout APRICOT 340 OWNER’S HANDBOOK Video Parallel Com 2 Com 1 Mouse Key/Bd... - Page 106 I n s i d e t h e S y s t e m U n i t Power connector ISA/PCI backplane socket External ports Video (VESA) feature connector Video memory upgrade sockets CMOS lithium battery Cache memory socket System connectors (see overleaf) Processor ZIFF socket VRM socket (optional) APRICOT 340 OWNER’S HANDBOOK...
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Page 107: System Connectors
You should not normally need to disturb these connections but if they become loose you may need to re-attach them. The following table shows how these connectors are used in an Apricot 340 computer. Connector PL24 PL28 APRICOT 340 OWNER’S HANDBOOK... -
Page 108: Changing Jumper Settings
On the motherboard, pin 1 of each jumper block is indicated by a small triangle marking. I n s i d e t h e S y s t e m U n i t IC12 APRICOT 340 OWNER’S HANDBOOK... - Page 109 You do this by removing the jumper from PL22, the VESA options jumper block. On-board EVGA Enabled (default) Disabled APRICOT 340 OWNER’S HANDBOOK Jumper block SW1 PL22 Open 9-10 9-10...
- Page 110 Boot using normal BIOS (default) Boot using recovery BIOS BIOS reprogramming Enabled Disabled (default) I n s i d e t h e S y s t e m U n i t IC12 Closed Open PL21 APRICOT 340 OWNER’S HANDBOOK...
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Page 111: Replacing The Configuration Battery
Take suitable anti-static precautions and remove the system unit cover. Identify the battery holder from the following illustration. Lift the front edge of the battery far enough to clear the base of the holder, then slide the battery out. A/10 APRICOT 340 OWNER’S HANDBOOK... - Page 112 BIOS Setup utility to reset the hardware configuration. See the chapter on “Using the BIOS Setup Utility”. APRICOT 340 OWNER’S HANDBOOK I n s i d e t h e S y s t e m U n i t...
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Page 113: Technical Information
EVGA 1280 x 1024, 1024 x 768 SVGA 800 x 600 VGA 640 x 480 SoundBlaster Vibra 16 Yamaha OPL3 synthesizer Line in, Line out, microphone, external speakers/headphones, MIDI/joystick CD audio, TV audio, voice modem audio APRICOT 340 OWNER’S HANDBOOK... - Page 114 HDD/CD-ROM interfaces HDD drive bay Capacity Form factor Removable-media Form factor drive bay APRICOT 340 OWNER’S HANDBOOK Two 9-way male D-type RS-232 25-way female D-type IEEE 1284: EPP/ECP-compatible 102 key AT-compatible PS/2-compatible two-button 1.44 Mbytes 94 ms (average) Dual AT-Attachment/Enhanced IDE PCI local bus One 1.6"...
- Page 115 ATA-PI +5 V dc ± 5% +12 V dc ± 10% +5 V: <= 100 mVp-p +12 V: <= 200 mVp-p +5 V: 1.0 A (seeking/continuous read) +12 V: 1.5 A (seeking/continuous read) 100,000 power-on hours APRICOT 340 OWNER’S HANDBOOK...
- Page 116 Voltage specification Ripple Current (operational) Current (peak) Nominal maximum only; can be exceeded for highly-compressible data. APRICOT 340 OWNER’S HANDBOOK CTD8000R-S 1.3 Gbyte (1:1 base) 2.6 Gbyte (2:1 typical) 5.2 Gbyte (4:1 max 2.0 Gbyte (1:1 base) 4.0 Gbyte (2:1 typical) 8.0 Gbyte (4:1 max...
- Page 117 +12 V: < 30 mA nominal, 200 mA max. +5 V: 500 mA nominal, 700 mA max. +12 V: 0.67 mA nominal, 1.2 A max. +5 V: 800 mA +12 V: 1.8 A Less than 1 in 10 data bits > 100,000 power-on hours APRICOT 340 OWNER’S HANDBOOK...
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Page 118: Physical Characteristics
The voltage range setting of the monitor must always agree with that of the system unit PSU. If you wish to use the computer in another country, you must ensure that it is set to the correct voltage range. APRICOT 340 OWNER’S HANDBOOK Height Depth Width... - Page 119 T e c n h i c a l I n f o r m a t i o n 4.5 A at 100-120 V 3.0 A at 220-240 V 1.5 A at 100-120 V 1.0 A at 220-240 V APRICOT 340 OWNER’S HANDBOOK...
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Page 120: Port Characteristics
T e c h n i c a l I n f o r m a t i o n Port characteristics Serial ports 9-way male D-type (COM1/COM2) APRICOT 340 OWNER’S HANDBOOK 10101 Function Data carrier detect Receive data Transmit data... - Page 121 Data bit 1 Data bit 2 Data bit 3 Data bit 4 Data bit 5 Data bit 6 Data bit 7 -ACK BUSY SLCT APRICOT 340 OWNER’S HANDBOOK Function -AUTO FEED -ERROR -INIT -SLCT IN Ground Ground Ground Ground Ground...
- Page 122 T e c h n i c a l I n f o r m a t i o n Monitor port 15-way female D-type (VGA) Red Rtn, Green Rtn, Blue Rtn = Analog grounds Digital G = Digital ground for sync returns and self test. B/10 APRICOT 340 OWNER’S HANDBOOK Output Monochrome No pin Green Mono...
- Page 123 T e c n h i c a l I n f o r m a t i o n Function Data Reserved Ground +5 Vdc Clock Reserved APRICOT 340 OWNER’S HANDBOOK B/11...
- Page 124 T e c h n i c a l I n f o r m a t i o n Joystick/MIDI port 15-way female D-type This port is available only with Apricot MS340 and LS340 models. B/12 APRICOT 340 OWNER’S HANDBOOK Function + 5 V dc GP4 Joystick/A right button GP0 Joystick/A x-coordinate...
- Page 125 -EDCLK No connect Ground Ground Ground Ground Ground Ground T e c n h i c a l I n f o r m a t i o n Function DCLK -BLNK HSYNC VSYNC Ground APRICOT 340 OWNER’S HANDBOOK B/13...
- Page 126 APRICOT COMPUTERS LIMITED 3500 PARKSIDE BIRMINGHAM BUSINESS PARK BIRMINGHAM B37 7YS UNITED KINGDOM MITSUBISHI ELECTRIC APRICOT COMPUTERS LIMITED MITSUBISHI ELECTRIC EUROPE GmbH TRAVELLERS LANE GOTHAER STRASSE 8 HATFIELD POSTFACH 1548 HERTFORDSHIRE AL10 8XB 40835 RATINGEN UNITED KINGDOM DEUTSCHLAND...