1. Home
  2. Electronics Repair
  3. HP 3581A LED digits not lighting

HP 3581A LED digits not lighting

Hi,

I have a 3581A that was working a few years ago when I purchased it off eBay (yes, yes, I know).

I went to power it up recently (not having powered it up for about a year) when I noticed that the inner two LED digits are not lighting. I'm not talking about missing segments, but the inner digits not working altogether:

formatting link

Working the frequency control I can see the lighted digits changing, but that's all.

Is this a repair that is straightforward? I consider myself handy. Otherwise, any tips/advice on where to have this thing sent for repair?

Thanks, Chris

Reply to
fazeka
Loading thread data ...

Can't be much.. most likely a cable header connection.

Reply to
Jamie

Here is the service & operation manual:

formatting link

The display circuit is on page 140.

--
Greed is the root of all eBay.
Reply to
Michael A. Terrell

First suspect is the cable connecting the display to the main board. Try moving the cabke in and out slightly at each end. Then dig into the 170 pages of the manual.

Reply to
hrhofmann

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.