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Epson Computer Hardware manual

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Table of contents for the manual

  • Page 1

    EPSON Endeavor L power (SPEED) hard disk diskette power light accesslight drive button Memory bay for hard disk, diskette drive, CD-ROM drive, tape drive, or other option card slots Video RAM ROM Shadow RAM Cache Math coprocessor Computer Specifications Clock/calendar CPU and Memory 32-bit CPU Intel 486SX, DX, or DX2 processor upgradable to faster,[...]

  • Page 2

    EPSON Endeavor L SVGA feature connector Parallel Serial Keyboard Mouse Option slots Speaker Mass storage Diskette drives Hard disk drives Other devices Keyboard SETUP Program SVGA pass-through interface built into main system board; 26-pin connector One standard 8-bit parallel uni- or bi-directional interface built into main system board; I/O addre[...]

  • Page 3

    EPSON Endeavor L Major Subassemblies J3 SVGA feature connector DIP - switches micro- - processor battery Jumper and DIP Switch Settings Jumper settings 1 Jumper 1 Jumper 1 I number setting Function J3 A* Enable the built-in VGA adapter B Disable the built-in VGA adapter J4** A Enable DX-based or Pentium-based processor in PGA socket B Enable SX-b[...]

  • Page 4

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  • Page 5

    EPSON Endeavor L - System board components and connectors SIMM Installation Your computer comes with 4MB of memory on the system board. You can increase the memory up to 36MB by installing 1MB, 4MB, and 16MB SIMMs in the computer’s two SIMM sockets. The following table shows the possible SIMM configurations. You can install SIMMs in either SIMM s[...]

  • Page 6

    EPSON Endeavor L Microprocessor Upgrades The computer’s processor can be upgraded by replacing the existing microprocessor with a faster one. You can either purchase an upgrade kit from EPSON or buy the individual components separately, as listed in the following table. Microprocessor upgrade components l Actual formatted size may be slightly dif[...]

  • Page 7

    EPSON Endeavor L IDE hard disk drive Hardware Interrupts l CS (cable selection) can he jumpered for any configuration. When CS is used, the drive Is a master If pin 28 is grounded, or a slave if pin 28 Is not grounded. System Memory Map Diskette and magneto optical drive options DMA Assignments 3/94 EPSON Endeavor L - 7[...]

  • Page 8

    EPSON Endeavor L System l/O Address Map Connector Pin Assignments Parallel port connector pin assignments (CN8) Serial port connector pin assignments (CN9, CN10) Pin Signal Pin Signal 1 Data canter detect 6 Data set ready 2 Receive data 7 Request to send 3 Transmit data 6 Clear to send 4 Data terminal ready 9 Ring Indicator 15 1 Ground I I I Keyboa[...]

  • Page 9

    EPSON Endeavor L Power supply connector pin assignments (CN1) Diskette drive connector pin assignments (CN11) **All odd-numbered pins are grounds Hard disk drive connector pin assignments (CN12) ‘Active low logic Speaker connector pin assignments (SP1) Pin 1 2 Signal Speaker (+) Battery connector pin assignments (CN3) Pin Signal 1 RED wire (3.6v)[...]

  • Page 10

    EPSON Endeavor L l Active low logic Installation/Support Tips Installing Diskette Drives Make sure that the drive type has been correctly selected in the SETUP program. Installing Hard Disk Drives When installing a hard disk drive, see the hard disk drive type tables on page 6 to select the correct type number for the drive. If the parameters for y[...]