Electronics > Repair

Rohde & Schwarz Signal Gerator SML-01, (FIXED)

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HighVoltage:
I bought another instrument very cheap because it is broken and does not work.
This is a Rohde & Schwarz Signal Generator SML-01 (9 kHz to 1.1 GHz)
Besides a few HAMEG / R&S instruments, this is my first real Rohde & Schwarz gear.

Anyone here having experience in repair of Rohde & Schwarz signal generators?

The specs are:
9 kHz to 1.1 GHz/2.2 GHz/3.3 GHz
SSB phase noise: <?122 dBc (1 Hz) (at f = 1 GHz, ?f = 20 kHz)
Setting times <10 ms
High level accuracy (deviation <0.5 dB at levels >?120 dBm)
High reliability through electronic attenuator
Digital frequency and level sweep
AM/FM/?M
Optional pulse modulator with integrated pulse generator
3-year calibration cycle

The problem: No display, does not work at all.
I will start checking the power supply.

Here are some pictures:

HighVoltage:
and some more pictures of the inside. It looks all very nice and high quality, as expected from R&S.
Enclosed is also the brochure for this instrument as a PDF.

PA0PBZ:
Interesting to see the translation for attenuator to be eichleitung, in Dutch it is more like attenuator: "verzwakker"

IconicPCB:
I have one of these. Will check the owners manual to see if there is anything in it which might help.

JacobPilsen:
It is equiped with RS-232-C. Does it communicate???
User manual: SML_SMV__e_gl.pdf.
Maybe is it Lead-Free.
Does it contain any BGA ?

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