Instruction/ maintenance manual of the product 4SX/25 Epson
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EPSON Equity 4SX/25,4DX/33, and 4DX2/50 power hard disk (SPEED) light access light diskette drive power button bay for hard disk, diskette, tape, CD-ROM, or other drive 11 O/220 VAC switch .
Keyboard Mouse Option slots Speaker Alternate VGA Mass Storage Horizontal mounts Vertical mount Diskette drives Hard disk drives Other devices Keyboard SETUP Program Stored in ROM; accessible by press.
EPSON Equity 4SX/25,4DX/33, and 4DX2/50 Main System Board Diagram VGA video parallel serial 2 serial 1 mouse keyboard ELI-d CN2 CN3 QQQ 1 - power supply connectors VGA feature connector ml UlQ U18 sta.
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50 Major Subassemblies main system option card connector board board (option board riser card) power supply ’ SIMM 0 i SIMM 1 diskette speaker drive Connector .
EPSON Equity 4SX/25,4DX/33, and 4DX2/50 VGA Feature Connector (CN8) pin 1 ‘Yeeaeeeeoeaaw pin 25 pin 2 ’ ,feooooooooooo~, ’ pin 26 VGA Feature Connector Pin Assignments 8 IData I17 1 ENDATA’ I2.
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50 Jumper Settings J7 J5 ,J13 J15 If the computer’s microprocessor is a FQFP type, it is surface- mounted on the main system board. To add an OverDrive processor, install it in the empty OverDrive socket and disable the original microprocessor by setting jumper J23 to position 2-3.
Video Memory If the computer has 512KB of video memory, you can install four 256K x 4 bit, 7Ons, 20-pin DRAM DIP (Dual InIine 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.
EPSON Equity 4SX/25, 4DX/33, and 4DX2/50 Installing Hard Disk Drives Ll It is recommended that a X-bit, AT-type hard disk controller be used if you are installing a drive that cannot use the embedded IDE interface.
An important point after buying a device Epson 4SX/25 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Epson 4SX/25 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 Epson 4SX/25 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Epson 4SX/25 you will learn all the available features of the product, as well as information on its operation. The information that you get Epson 4SX/25 will certainly help you make a decision on the purchase.
If you already are a holder of Epson 4SX/25, 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 Epson 4SX/25.
However, one of the most important roles played by the user manual is to help in solving problems with Epson 4SX/25. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Epson 4SX/25 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
