Tektronix TDS210

The BAMA boat anchor site has a huge Tek folder of schematics.

I would start by checking for simple problems like correct power supply voltages (probably 3.3v, or 5v). If you can get access to a scope, check to see if any crystals on the board are oscillating. Check for bad soldering and obviously damaged components. Look for any surface mount fuses on the board. Even with complex equipment, I find that 8 out of 10 times it's something simple. Andy Cuffe

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"ian field" wrote in news:%kEMg.23939$ snipped-for-privacy@newsfe6-gui.ntli.net:

AFAIK,TEK never published schematics for -any- of the TDS series scopes,- except IIRC,the TDS300s for the US Military,under terms of a purchase contract,with a USMil Tech Order(T.O.) part number,no TEK p/n.

The TDS series were intended to be module-exchange or "repair and return" of assemblies only.(with a good chance your assembly gets lost!)

I'm not certain the TDS200 series is still under support,either. I believe not.

Sounds like you may have access to more scopes of the same make and model. If so, comparison (using a third scope for checking) is straightforward. Check power supplies and crystals. And above all, check for loose connections, broken traces, broken solder joints, etc.