321 Studios 4DX/33 manual

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Table of contents for the manual

  • Page 1

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 pourer hard disk diskette power (SPEED) light access light drive bWon Memory ROM hay for hard disk. diskette, tape, CD-ROM, or other drive 110/220 VAC switch option card slots power keyboard serial serial inlet port port 1 port 2 VGA parallel monitor mouse port port port Video RAM Shadow RAM Cache Math c[...]

  • Page 2

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 Keyboard Mouse Option slots Speaker Alternate VGA Mass Storage Horizontal mounts Vertical mount Diskette drives Hard disk drives Other devices Keyboard PS/2 compatible keyboard interface built into main system board; num lock setting selectable through SETUP; 6-pin, mini DIN connector PS/2 compatible mouse[...]

  • Page 3

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 Main System Board Diagram 4/1/93 EPSON Endeavor-3[...]

  • Page 4

    EPSON Endeavor 49SX/25, 40X/33, and 4DX2/50 Major Subassemblies Serial Port Connectors (CN4 and CN5) main system option card connector board board (option board riser card) speaker drive drive bays Connector Pin Assignments Parallel Port Connector (CN6) pin 13 pin 1 pin 25 pin 14 Parallel Port Connector Pin Assignments Serial Port Connector Pin Ass[...]

  • Page 5

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 VGA Feature Connector (CN8) System I/O Address Map VGA Feature Connector Pin Assignments ‘Active low logic DMA Assignments Level Assigned device DMA0 Spare (&bit) DMA1 Spare (&bit) DMA2 FDD controller (&bit) DMA3 Spare (8-bit) DMA5 Spare (16-bit) DMA6 Spare (16-bit) DMA7 Spare (16-bit) Hardwa[...]

  • Page 6

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 Jumper Settings J7 J5 Adapter, CMOS, and PQFP jumper Settings J13 J15 Jumper number J5*** J6 J7*** J6 Jumper setting On Off* 1-2* 2-3 On Off’ 1-2* Function Supports CGA adapters Supports monochrome, EGA, MCGA, and VGA adapters Enables the built-in VGA display adapter Disables the built-in VGA display ada[...]

  • Page 7

    EPSON Endeavor 4SX/25, 40X/33, and 4DX2/50 Video Memory If the computer has 512KB of video memory, you can install four 256K x 4 bit, 70ns, 20-pin DRAM DIP (Dual Inline Package) chips to increase the video memory to 1MB. The following table lists which DRAM DIP chips you can install on the main system board. Supported DRAM Chips Manufacturer Part n[...]

  • Page 8

    EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 Installing Hard Disk Drives cl cl It is recommended that a 16-bit, AT-type hard disk controller be used if you are installing a drive that cannot use the embedded IDE interface. If you install a non-IDE hard disk drive and controller card, you need to use the SETUP program to disable the built-in IDE hard [...]