Recent content by Andrzejj

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    tektronix 2213 oscilloscope faulty trigger

    My tek is working perfectly now, i replaced mc10102( i bought it for 1 euro in PL but its quite rare, I've found it in only one shop)
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    tektronix 2213 oscilloscope faulty trigger

    up, i mistyped ICs numbers..
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    tektronix 2213 oscilloscope faulty trigger

    Ok, i borrowed another scope, there is 350mv p-p signal at the pin 6 of U460, and on the pin 13 there is only 50mv p-p, shouldn't it be same? There is signal on the 7th pin of the U480, but there is no signal out( pin 3), its like black magic for me, can you please tell me what to check? i...
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    tektronix 2213 oscilloscope faulty trigger

    Thanks for reply, i thought u wont reply, because its really old topic, as soon as i will be home i will check it. As far as i remember all of the packages are DIP-8 or DIP-16. @edit Isnt it CA3102 (U460 on tek schematic) ? Here you got the part of the schematic with it, it should remind it to...
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    tektronix 2213 oscilloscope faulty trigger

    I have exactly the same problem, can you tell me how you fixed it? I've measured all of the voltages, and somewhere its +/-0.1V, and somewhere its perfectly like it should, i think its all ok, i've also tested U421(5 transistrs in DIP16) and its working totally fine.
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