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| Beginners Road To Repair |
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| don@cascadefellowship.org:
Next two. |
| don@cascadefellowship.org:
Last two. |
| CJay:
OK, shame and I should have thought to mention about the capacitors being polarised but we can deal with that in a bit. Handily the two 8 pin chips are connected to the 12V rail with a wire link each so we can lift one end of them to isolate the chips, I've circled them |
| BrianHG:
If it is not the caps, I can only see that IC6 is blown pin 5 to 8 as a short, but how? This is so rare to near impossible with all the other IO connections to that op-amp having huge series resistors. Being CMOS, the way it is hooked up, you would need an absurd jolt to make that happen. |
| don@cascadefellowship.org:
--- Quote from: CJay on June 26, 2018, 07:24:11 pm ---OK, shame and I should have thought to mention about the capacitors being polarised but we can deal with that in a bit. Handily the two 8 pin chips are connected to the 12V rail with a wire link each so we can lift one end of them to isolate the chips, I've circled them --- End quote --- I've lifted one end of each of the wires and the short remains. |
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