Tektronix Oscilloscope 2225 Service Manual

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There is a Tektronix manual - 'Troubleshooting your Oscilloscope' that recommended taking the resistance reading. Ive been looking at the service manual for about a week now. So I got the service manual and took the case off. They all read low - 40-60% of what they should be. My Tektronix 2225 (50 mhz analog, 1980s) scope died on me. I took a number of voltage readings at various test points labeled on the bottom of the main board. No obvious signs of burnt components, bulging electrolytics and such. First order of business was a visual inspection. Pretty sure it is a power supply problem. This is an amazingly well constructed and documented piece of equipment. Dave's 2225 teardown video was a nice find. At least there's one cap somewhere that works.

Probably will keep it, Any way, the only additional symptom is that, after switching it off, the Power and Sweep LEDs light up for several hundred mS. But it's been a good friend to me and it's so well designed and constructed, I want to repair it. I'm taking this as a sign that I need to replace it with a DSO. Tektronix 2225 operating & service manuals (good schematics) 122 page Tektronix 7A22 VERTICAL PLUG-IN UNIT Operator Maintenance. My Tektronix 2225 (50 mhz analog, 1980s) scope died on me. I'm no repair-Pro so hoping some smarter folks than I can help me.

Tektronix Oscilloscope 2225 Service Manual