Kenwood CS-1575a Oscilloscope

An oscillosope is a pretty useful thing to own when working with microprocessors; so I was super happy when I was given an old Kenwood ’scope earlier this week. At the moment it switches on and produces a trace – but only intermittently. The trace intensity varies – and eventually fades. I’m hoping that bringing it back to life won’t be too difficult; to help equip me, I’m trying to get hold of a service manual for the scope

I haven’t had any luck yet – so far I managed to source a service manual for a Trio CS-1560a.

If anyone has a copy of the manual for the CS-1575a (that they’re willing to share), please get in contact.

To be honest though, I’m a bit worried about killing myself via the high voltage on the board. Whatever I do – I will proceed with caution!

I’ve read that it’s possible the capacitors might have dried out – at first I thought the gunk emanating from the base of the larger electrolytic capacitors was a sign of this – but on closer inspection I found it was just glue, which was disappointing, as changing the caps seemed like it was something I’d be capable of carrying out.

Any (and all) suggestions on how to proceed will be gratefully received.

Some of the capacitors used by the 'scopes power circuits.

The effects of high voltage on the PCB...

3 Comments

David

Posted 15-01-2010 at 3:51 pm | Permalink

HI,

I too have this model of scope.

Unfortunately I do not have a service manual as requested, but instead wondered if you had a user manual for this machine? I know that this is a fairly simple scope, but I’m new to this and need a bit of guidance in it’s use.

If the issue with your machine is the capacitors, then I have read before that heating them up with a hair dryer can be enough to restore the usage after a long break.

Thanks

David
David

Posted 15-01-2010 at 4:44 pm | Permalink

Hi again!

Just to let you know that I couldn’t find anything about this model specifically, but didn’t know if you’d seen this –

http://www.eserviceinfo.com/downloadsm/39718/Kenwood_CS-1554.html

Although not the exact model, it’s certainly the right era and style, so I would assume that this is just a higher spec model by the looks of it. It was free to download.

Thanks

David

Ps – Do let me know if you have a user manual that you wouldn’t mind scanning.
lukus

Posted 02-06-2010 at 3:20 pm | Permalink

@David;

Thanks for the information. I need to revisit this – at the moment, it’s just gather dust :/

I’ll let you know if I find out any more information (or manage to change the capacitors).

ntsdt.net

never the same day twice