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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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21st Oct 2020, 12:24 pm | #1 |
Diode
Join Date: Oct 2020
Location: Modena, Italy.
Posts: 2
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Nordmende WM3335 Sweep Generator.
Hi dear All,
let me introduce myself I'm luca from Italy, so apologize for my poor english. I have this sweep marker model nordmende WM3335 but no sweep output and no marker spectrum. Is ther anyone who can help me in repair it? ps I have pdf service manual with schematics but 13Mb too fat to attach. I can send it thru email. many thanks |
22nd Oct 2020, 5:58 am | #2 |
Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,637
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Re: Nordmende WM3335 Sweep Generator.
Hi Luca, welcome to the forum. As with any bit of gear start with a thorough visual examination looking for loose wires, burnt/exploded components and bulging electrolytic capacitors,then its a matter of checking the power supply and other voltages.
When I need help with a problem, I ask my question and attach screenshots of relevant sections of a device, like the power supply and in your case a block diagram and sweep OP section. So,find the right page/schematic, screenshot, so you have a good quality image. Some decent pics of the device would help too. Andy.
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23rd Oct 2020, 6:31 pm | #3 |
Diode
Join Date: Oct 2020
Location: Modena, Italy.
Posts: 2
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Re: Nordmende WM3335 Sweep Generator.
hi Andy,
I checked voltages outputs of power supply unit and are all ok. horizontal signal for x axis of the oscillosco is ok to. Low frequency oscillators 1MHz to 50Mhz are ok too. But I can't check higher frequency oscillations with my 60MHz oscilloscope. |