I just bought a tek 576 from a leasing company works but has focus problem anyone with maintenance manual around in pdfs .... best regards patrick
- posted
17 years ago
tektronix 577 & 576
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- posted
17 years ago
For the 577 (not 576) see: ftp://bama.sbc.edu/downloads/tek/577-177-d1/
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17 years ago
"David C. Partridge" wrote in news: snipped-for-privacy@pipex.net:
Not anything similar.577 is based on the 5100 series scope chassis and display,the older 576 is WAY different.
Perhaps a bad resistor in the focus string?
-- Jim Yanik jyanik at kua.net
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17 years ago
Hi Patrick,
yout topic is a little misleading because you mention both the 577
*and* 576.Do as Jim recommended. Check the HV area and the focus restor chain of your 576.
The 577 diagram (or very similar in the HV area: 5100 scope diagram) might be helpful to get a genral impression how Tektronix curve tracers are set up in this area around the CRT.
Fotr the 577: David's hint is valuable.
hth, Andreas
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17 years ago
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17 years ago
"carneyke" wrote in news: snipped-for-privacy@i39g2000cwa.googlegroups.com:
and if the CRT is getting weak,it will naturally defocus;the beam is emitted from a larger area of the cathode.
-- Jim Yanik jyanik at kua.net
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17 years ago
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Best regards,
Man Li AP Technology Ltd.
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