WD 2060-800039-001 strange problem.
January 3rd, 2021, 10:49
Drive will not spin.
All readings on diode test...
12V TVS = 600 one way.
5V TVS=500 one way.
I am not sure which resistors are the 0 ohm. R67 (one of them maybe)? It shows open.
I have a short between sata power connector pins 3 and 4, but not pin 4 to pins 1 or 2. But pins 1-3 are short as I would expect(3.3V pins). Can I put kapton tape over pin 3 like in "shucked" drives? I would rather find the problem.
All readings on diode test...
12V TVS = 600 one way.
5V TVS=500 one way.
I am not sure which resistors are the 0 ohm. R67 (one of them maybe)? It shows open.
I have a short between sata power connector pins 3 and 4, but not pin 4 to pins 1 or 2. But pins 1-3 are short as I would expect(3.3V pins). Can I put kapton tape over pin 3 like in "shucked" drives? I would rather find the problem.
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Re: WD 2060-800039-001 strange problem.
January 3rd, 2021, 13:24
R67 is the zero-ohm resistor for the 5V TVS diode. You need to replace it with a fuse, or flow a blob of solder over it. The other resistor is for the 12V diode.
You can test for shorts to ground at each of the 4 rectangular inductors adjacent to the motor controller IC. The other squarish inductor appears to be part of the -5V supply, in which case it will be wired to ground.
I don't understand the reason for the short between SATA power pins 3 and 4. In those models where pin #3 is used for power disable purposes, I would expect that it would control a high side load switch, but this board doesn't have any. Are you sure someone didn't run a jumper or a solder blob between those pins?
You can test for shorts to ground at each of the 4 rectangular inductors adjacent to the motor controller IC. The other squarish inductor appears to be part of the -5V supply, in which case it will be wired to ground.
I don't understand the reason for the short between SATA power pins 3 and 4. In those models where pin #3 is used for power disable purposes, I would expect that it would control a high side load switch, but this board doesn't have any. Are you sure someone didn't run a jumper or a solder blob between those pins?
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