EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: BillWojo on September 19, 2014, 02:04:41 am
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I had this on the 2235A post but figured I'd get more interest if I started a new post.
Do any parts interchange between the Tek 2445A and the 2236 scopes? I picked up a 2445A for 25.00 because it fails on start up with Test 4 Fail 10, looks like it means EAROM Interface fault, check U2118, U2208, U2108 and Q2025. I can clear the message and get nice traces on all 4 channels using the calibration test point. I don't even know where to start with that info. Sounds like I'm in for swapping IC chips.
Today I was at the local scrap yard and saw a Tek 2236 laying in the pile. Front was covered with mud and the back looks like it took a hit, round metal cover missing and big dent on the top of the back. I could probably get it for a buck or two a pound.
Worth picking up?
Thanks
BillWojo
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I had a quick look at the 2445A schematic. Does not look like the 2236 at all. The power supply section is very different, as is the display tube. Different logic series and analog ic's used. Overall a very different design.
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Ok, sounds like it won't do me any good than. I need to get by there again and look around some more. Problem with a place like that is test equiptment is treated just like an old computer sent in for scrap. You have to find it before it gets destroyed. They have a whole section of scrap electronics that gets taken apart with absolutely no reguard to ever using it again. Large industrial contactors, transformers of all sizes, all piled into 55 gallon drums. Makes you sick.
BillWojo