Epson 20 - Manual (Page 26)

7 Setting the Monitor Type
In addition to connecting the monitor, as you did in step 3,
you must set the monitor switch on the front panel to match the type
of monitor you are using. To access the monitor switch, open the
cover to the right of the keyboard cable socket cover, as shown below.
You need to push down slightly on the tab as you open the cover.
monitor switch monitor switch
Slide the switch left for a monochrome monitor or right for a color
monitor.
8
Turning On the Computer
After you set up your system, you’re ready to turn on the
power. But first read the following safety rules to avoid accidentally
damaging your computer or injuring yourself:
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Never turn the computer on or off with a protector card in the
diskette drive.
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Do not dismantle any part of the computer. Only remove the
cover to install and remove optional devices. If there is a
hardware problem you cannot solve after reading the section in
Appendix A on troubleshooting, check with your Epson dealer.
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Always turn off the power, disconnect the computer’s power cord,
and wait five seconds before you remove the computer’s cover.
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Do not unplug cables from the computer when the power is on.
l-12 Setting Up Your System