Author Topic: HAMEG 103-2 Problem  (Read 1442 times)

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Offline ghostbox

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  • Country: pl
HAMEG 103-2 Problem
« on: February 25, 2016, 06:49:07 pm »
Hey guys,

I'm fairly new to electronics, so I bought used Hameg 103-2 as my first oscilloscope, and this is what happens when I change Volts/Division (video).

Also, when I set to 20V it smells weird, not like burning, but something similar.  :-//



Does anyone have any idea what could be the problem?

Any help would be much appreciated.

Thanks in advance!
« Last Edit: February 25, 2016, 09:11:27 pm by ghostbox »
 

Offline eeadata

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  • Tube - Germanium - Discrete . All about Past
Re: HAMEG 103-2 Problem
« Reply #1 on: February 25, 2016, 07:25:50 pm »
it seems there is an dirty switch contact. Take it apart and clean contacts. Lube shafts .

BTW service it.
 

Offline tautech

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Re: HAMEG 103-2 Problem
« Reply #2 on: February 26, 2016, 02:35:27 pm »
it seems there is an dirty switch contact. Take it apart and clean contacts. Lube shafts .

BTW service it.
+1
Products like Deoxit are normally used to clean the gold contacts in the V/Div selector.
Sometimes just "exercise" of the selectors will clean up the contacts.

Service manual
http://elektrotanya.com/hameg_hm103_oscilloscope_um.pdf/download.html
Wait until the "Get Manual" link appears, then click to download.
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