I just recently bought by first oscilloscope, in hopes to learn how to use it and add to my board level repair skill. However I'm trying to find the service manual in digital form, but have not been able to come across it. If anyone knows where I would be able to find the service manual for a Tektronix 2220 in digital format, I would praise you! I have spent many hours looking around for it with no luck what-so-ever! Thank you to anyone that would be willing to help me!