Instruction/ maintenance manual of the product 4 3Com
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EPSON Progression 4 power (SPEED) hard disk diskette power light access light drive button Memory bay for hard disk, diskette, tape, CD-ROM, or other drive ROM Video RAM Shadow RAM Cache 115/230 VAC switch .
EPSON Progression 4 Serial Keyboard Mouse Option slots Speaker Alternate VGA Mass Storage Horizontal mounts Vertical mount Diskette drives Hard disk drives Other devices Two RS-232C, programmable, asy.
EPSON Progression 4 Extended VGA Modes Major Subassemblies Mode 60 61 62 64 65 6A/70 72 1024x766 main system J1 5-JQ option board board riser card I power supply 16 170Hz ‘” 16 60 Hz 70 Hz 72 Hz 75 Hz 256 60 Hz 73 Hz 256 56 Hz 60 Hz 79 640 x 480 NI --.
EPSON Progression 4 Main System Board Diagram alternate VGA feature - connector VGA video parallel serial 2 serial 1 mouse keyboard , , PI nl In In w 108 1 --3 1 ll u109 l-l 0 u91 UE El 131 I 0 u97 El.
Connector Pin Assignments Parallel Port Connector (CN5) pin 13 pin 1 I I ~oooooooo~oo~ pin 25 pin 14 Parallel Port Connector Pin Assignments Pin 1 Signal 1 Pin 1 Signal 1 Pin 1 Signal 1 Strobe 2 Data .
Hardware Interrupts System I/O Address Map Hex address* Assigned device 000-OlF DMA controller 1, 8237A-5 020 - 021 Interrupt controller 1, 8259A, master 022 - 024 i Epson resewed function 040-043 Tim.
Processor Chips EPSON Progression 4 Hard Disk Drive Types If you have the 4SX/33 system, you can install an Intel OverDrive processor (ODP486-33) or a 487SX/33 microprocessor (with built-in math coprocessor) on the main system board.
EPSON Progression 4 If the computer has an Epson 120MB or 240MB hard disk drive, select the appropriate type number from the table below. Epson Hard Disk Drive Types Type number Epson hard disk drive .
An important point after buying a device 3Com 4 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com 4 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 4 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 4 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 4, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 4.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 4 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center