Use extreme caution when working on the unit.ĬAUTION: Certain of the integrated circuits used in the TELERAY are MOS ICs although they are input-protected, use standard MOS handling procedures when working on the circuitry, particularly the 2513 Character Generator ROM. WARNING: High voltages injurious to health are present inside the TELERAY, particularly in the vicinity of the CRT monitor. Note that appropriate test equipment is required for some adjustments. Please read this manual before attempting to service a TELERAY. It is assumed that the reader has both a general background in electronics and a knowledge of digital communications and circuitry. This service manual provides complete servicing and adjustment information for the TELERAY 3500 series CRT Data Terminals. Scanned Book and Magazine Collection -> Service Manuals and Repair Books (CRT monitors, data terminals) Highly educational and worth of a scroll through by anyone. I am sharing these as there is a lot of narritive that explain to you a fascinating chain of electronics that go into making a terminal work. Teleray 3500 and Teleray 3500 C1 are covered. A recent donation brought alone these rare, late 1970s service manuals and schematics.
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