¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Need help with component value on TDS684A CRT driver board


 

Hi all,

I have a TDS684A scope that has a problem on the CRT driver board. I've noticed that R294 is discolored. Can anyone tell me what the value of this component is? It measures 2.7K ohm, and it might be correct because I can see the color band is red-purple-????. The 3rd color band is too discolored to tell what it is. If it's red then the value is correct, but I can't tell due to the burn discoloration.

Can anybody tell me what value R294 should be?

Does anyone have schematics for these CRT driver boards? The TDS520B component service manual only has the B&W display schematic :(

Thanks,
Mike

Join [email protected] to automatically receive all group messages.