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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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TEK 475 scope STOPPED
Hi Hugh,
My favorite old TEK 475 Scope has suddenly stopped working. Symptoms a No trace, screen is blank, intensity and focus control do nothing. Beam Finder shows a dim small circle middle of screen. When power is turned off, circle like BEAM FINDER same size is visble and bright for a breif moment. Panel LEDS are lighted and do respond to switches being changed. Screen graticule cannot be seen. Any suggestions are welcome. I currently do not have an adequate service manual, only OPERATORS MANUAL and just module layout and parts list. I am looking but cannot find the TEKTRONIX scope forum. Lacking a schematic is really flying blind. Will find cost of a complete SERVICE MANUAL. I've really not had good luck with USED scopes lasting for years. Have not had this scope very long. But it worked well while I had it. At the moment, I'm up to arm pits in many tasks so starting scope servicing is not what I wanted to start. My OLD antqiue TEK scope is still wroking which is a life saver. MAybe I'll get lucky and find a blown fuse?????????????? 73, W6MIK, dave |
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