Wrong voltage - what to check for?

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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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MagicByte
  • MagicByte
  • Posts: 8
  • Joined: July 13th, 2021, 13:48
  • Location: Denmark

Re: Wrong voltage - what to check for?

July 27th, 2021, 6:02

fzabkar wrote:Can you tape a sewing needle to the probe tip? Then measure the output voltages of each e-fuse using a screw hole as your ground.


Armed with needles, I now get:

1st PCB:

Between +5Vout and GND (screw hole): 3.47Kohm
Between +12Vout and GND (screw hole): 38.1Kohm

2ndst PCB:

Between +5Vout and GND (screw hole): 3.44Kohm
Between +12Vout and GND (screw hole): 36.5Kohm
fzabkar
  • fzabkar
  • Posts: 15539
  • Joined: September 8th, 2009, 18:21
  • Location: Australia
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Re: Wrong voltage - what to check for?

July 27th, 2021, 14:30

Good, there are no dead shorts.

Now power up the PCBs and measure the voltages at those points.
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