| Electronics > Repair |
| Help Identifying 0805 Resistor Value |
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| AstutePauciloquent:
Hello Everyone, I have been diagnosing this 600Watt PSU. After removing 2 blown Mosfets, I also discovered some blown resistors, and some other resistors that have had their value changed. Such as the two lower 103 in this pic, they should have a resistance value of 10K Ohms but they only read 110 Ohms. I'm confident in Identifying and replacing the faulty 0805 resistors with the values written on them, but what are these resistors that I have drawn a red box around? They all measure as 100 Ohms, but there are others with different values around the board, and seeing that some of these resistors have had there value changed, I can't really trust there measured resistance. This is such a great resource full of highly knowledgeable people, and it is an honer to be part of this community, thank you in advance. |
| coromonadalix:
i would have said diodes, try testing them in diode mode both ways |
| AstutePauciloquent:
--- Quote from: coromonadalix on December 04, 2024, 02:11:07 am ---i would have said diodes, try testing them in diode mode both ways --- End quote --- Tested them in diode mode, both ways they do not behave like diodes |
| Whales:
--- Quote from: AstutePauciloquent on December 04, 2024, 02:40:05 am --- --- Quote from: coromonadalix on December 04, 2024, 02:11:07 am ---i would have said diodes, try testing them in diode mode both ways --- End quote --- Tested them in diode mode, both ways they do not behave like diodes --- End quote --- It's in parallel with a 100ohm or 1k-ohm resistor (marking "1000") next to it. You will need to remove the diode from the circuit to measure it properly. |
| AstutePauciloquent:
--- Quote from: Whales on December 04, 2024, 04:01:50 am --- --- Quote from: AstutePauciloquent on December 04, 2024, 02:40:05 am --- --- Quote from: coromonadalix on December 04, 2024, 02:11:07 am ---i would have said diodes, try testing them in diode mode both ways --- End quote --- Tested them in diode mode, both ways they do not behave like diodes --- End quote --- It's in parallel with a 100ohm or 1k-ohm resistor (marking "1000") next to it. You will need to remove the diode from the circuit to measure it properly. --- End quote --- Yes I see thanks, they are indeed diodes! |
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