Products > Test Equipment
HP 1741A oscilloscope - restoration project
AlienRelics:
Wow, this is a long-lived thread.
I was just given two 1741A 'scopes for free. I have no idea what is wrong with them, other than that they do not work. I'll be posting pictures and progress.
tggzzz:
--- Quote from: AlienRelics on April 17, 2016, 12:36:15 am ---Wow, this is a long-lived thread.
I was just given two 1741A 'scopes for free. I have no idea what is wrong with them, other than that they do not work. I'll be posting pictures and progress.
--- End quote ---
If you don't have one and need to open it the 1741, strongly consider getting the service manual from http://artekmanuals.com/manuals/hp-manuals/
AlienRelics:
Thanks!
I did find a free source for a PDF of the service manual.
techie1234:
Keeping this thread alive...I'm working on a 1743A and am having problems with TIME/DIV controls. The main control won't rotate more than a couple of positions CW or CCW - sounds like it might be a bent contact in the rotary switch or perhaps some hardened grease. Also the delay TIME/DIV knob cracked off, but at least the shaft rotates easily by hand. And those grub screws in the knobs are a pain - wish they would have milled some flat surfaces into the shaft so the set screws could mate flush. Seems like this is a weak point on these scopes. Will be having a closer look inside...
My main question is: is there a version of the 1743A manual that has as much detailed repair information as the 1740A one? The 1743A manual on the Agilent site:
http://cp.literature.agilent.com/litweb/pdf/01743-90905.pdf
has a BoM and exploded diagrams but not a schematic, repair procedures, etc.
Also, are there any recommendations on who sells various parts (like the aforementioned cracked delay TIME/DIV knob) for the 174x series?
tggzzz:
--- Quote from: techie1234 on July 09, 2016, 12:47:28 pm ---Also, are there any recommendations on who sells various parts (like the aforementioned cracked delay TIME/DIV knob) for the 174x series?
--- End quote ---
Sphere (Canada), QService (Greece, US), ebay.
It is useful to have exact part numbers, which you can find in the service manual.
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