Tandy 1200 HD User Manual page 138

4. Set up your computer and connect all cables and cords
(Section 1.3).
5 . Turn your computer on and allow it to run through its self
diagnostic test (see Sections 1.4 and 1.5). If the self
diagnostic test reveals any problems, go over the option
installation procedure once again and make sure you have
properly installed and assembled everything. Verify that all
cables and cords are correctly connected. If the self
diagnostic test still reveals a malfunction, refer to Appendix
C.
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