writes:

On 18 Oct 2009 13:15:00 -0400, (Samuel M.
Goldwasser) wrote:

Someone asked me about these oscilloscopes. Apparently he has a dozen
of them that do not power up. No display or backlight on the LCD. Yes,
AC power is set correctly. I haven't seen them so don't really have any
more info.

Anything common with these?

Thanks!

It appears the schematic can be found here. NOTE: Three parts.
http://www.eserviceinfo.com/download...ps_PM3055.html

Yes, thanks, I had already found that. Unfortunately, I don't have them
in my possession and I doubt that the person who does would be able to
do any serious troubleshooting.

--
sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.