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Need help with component value on TDS684A CRT driver board

@Arcticgeek All Messages By This Member #87781 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
Giampi Redmond All Messages By This Member #87787 Hi, yes, r296 connected to the cathode of cr196, is 2.7K 1/4W 5% Giampi toggle quoted message Show quoted text --- In TekScopes@..., "miketakeguess" <miketakeguess@...> wrote: 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
Giampi Redmond All Messages By This Member #87788 Hi, ehm, before I wrote r296 but I meant r294.... Giampi toggle quoted message Show quoted text --- In TekScopes@..., "miketakeguess" <miketakeguess@...> wrote: 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
@Arcticgeek All Messages By This Member #87797 Thank you for the information - that's kinda what I expected but I wanted to make sure. Thanks again. Mike toggle quoted message Show quoted text --- In TekScopes@..., "picredburner" <picredburner@...> wrote: Hi, ehm, before I wrote r296 but I meant r294.... Giampi --- In TekScopes@..., "miketakeguess" <miketakeguess@> wrote: 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

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