EmbDev.net

Forum: Analog Circuits Tektronix 2445B repair


Tektronix 2445B repair
von ChristophK (Guest)

Rate this post
• ▲ useful
▼ not useful 
Anyone knowing the Tek 2445B scope? I have one which is exposing a 
defect. The logic seems to be functioning. Only there is no beam. Not 
sure whether it might be the HV supply or sth. else.

I got a circuit diagram. Anyone some old "Teknichian" who might be 
familar with this instrument series and be able to pinpoint the most 
possible fault
or some first checks to narrow down that fault cause.


--
Christoph

Report post Edit Move Thread sperren Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Quote selected text Reply Reply with quote
Re: Tektronix 2445B repair
von marsufant (Guest)

Rate this post
• ▲ useful
▼ not useful 
There is diagnostic diagram 8a decision tree diagram) in the rear part 
of the service manual.
Did you follow the instructions mentioned there?
And if yes, how far did you proceed?

Report post Edit Delete Quote selected text Reply Reply with quote
Re: Tektronix 2445B repair
von Rick (Guest)

Rate this post
• ▲ useful
▼ not useful 
Hey Everyone,
 I replaced RAM U2460 and recalibrated. I keep gettin TEST 04 Fail 02.
 What does the fail 02 mean?
 Thanks

Report post Edit Delete Quote selected text Reply Reply with quote
Re: Tektronix 2445B repair
von Rick (Guest)

Rate this post
• ▲ useful
▼ not useful 
It doesn't seem to take the calibration...

Report post Edit Delete Quote selected text Reply Reply with quote
Watch this topic | Disable multi-page view
Please log in before posting. Registration is free and takes only a minute.
Existing account
Do you have a Google/GoogleMail account? No registration required!
Log in with Google account
No account? Register here.