| Electronics > Repair |
| Tektronix TCP202 current probe repair - Schematic and suggestions needed |
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| iso14000:
Hi all, I'm not very active on this forum, far much on a french one, but global level forbid me to post my request on it. sorry to rise up this topic (and my bad english) I've just bough a used TCP202 as defective on 3bay for a buntch of euro, and indeed it is in failure... nothing looks fried into that, the global behaviour is ... an oscillator. does somebody have a schematic to dig into? best regards |
| iso14000:
so ridiculous I am... schematics are simply above.... :-DD |
| iso14000:
Hi, I found some difference with VTP's schematics. (thanks sir , your work is awesome!) by taking two pictures and precisely match them with Gimp , I redraw the schematics. In my case , a 10 \$\Omega\$ resistor was out of specs , and was glowing in the dark, I chase it with my IR camera. By changing it, global behaviour is OK. there are still some mysteries for me : -what stands for X2 et X1 , they are SOT23 with "28" marking.? -what is the purpose of T7 et T4? I cannot see the oscillator activated when I push the degauss button |
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