[Test-Equipment] Re: Tek465B help needed

[Robert Rolf]

Hsu wrote:

> ----- Original Message ----- 
> From: "Hsu" <Jbenson at sohu.com>
> To: <test-equipment at mailman.qth.net>
> Sent: Wednesday, September 19, 2007 3:30 AM
> Subject: Tek465B help needed
> 
> 
> 
>>Hi,
>> I'm new list member.I have a Tek465B scope with problem as below:the wave  form was not in the center of the screen,a nd I can not pull bacek to the center: http://www.hellocq.com/cgi-bin/attachment.cgi?forum=32&topic=14060&postno=1&name=CDBCD2BB_1190142226&type=.jpg
>>.Even some times the wave form was "pressed"into a short line:http://www.hellocq.com/cgi-bin/attachment.cgi?forum=32&topic=14060&postno=1&name=CDBCB6FE_1190142249&type=.jpg, Could someone can tell me
>>how to repair this problem?
>>    Thanks in advance!

Is the 'beam finder' button out?
Are it's contacts working (cycle it many times to see).

Are the deflection plate connectors firmly connected to the pins. Driving only half the plates
gives this kind of symptom. Dropping the scope can cause a lead to fall off the neck pins.

Good luck, and let us know what you discover solved the problem.

Robert