Tag Archive: capacitor

Aug
18

Infrant/Netgear ReadyNAS NV+ PSU fails

ReadyNas NV+ PSU top

  This is a PSU from a Infrant/Netgear ReadyNAS NV+ system.  The PSU likely failed because of design problems instead of faulty components; the failure seems to be a common event on certain manufacturing batches.  Notable features on upper picture: 3 bulged capacitors, 1 inductor with burned insulation.  Notable features on lower picture: signs of …

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Mar
18

NEC ND-2510A DVD recorder

Top of board showing destroyed SMD capacitors and inductors

This started as a burning smell and extreme heat coming from the DVD drive, and ended up with what you see above.  The PC power supply that powered the computer this drive was in failed some months after.  Credit:  stsm.

Nov
27

Xbox power supply failure damages pcb

xbox power supply fries PCB

This appears to be an Xbox revision 1.1 where the power supply failure caused significant damage to the PCB.  The vented capacitor in the picture is a 680uF/16V capacitor which shorted, damaged the FET, and led to the failure of the power plane.  Ideally the power supply should sense failure conditions and shut down.  The …

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Nov
25

Dynapower DP-40205 with exploded FET

Dynapower DP-40205 top

These pictures come from a Dynapower USA DP-40205 400W power supply.  It appears the standby regulation failed and took out the FET pictured above and also the capacitor and resistor near the top of the fan.  The exploded piece of the FET was rattling around the power supply when it was opened and the part …

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Nov
23

MAG LT716s power supply fries after capacitors fail

MAG LT716s front

The capacitors in the first picture are failing as can be seen by their bulging.  They are supposed to hold the electric charge for the inverter circuit using the 4511GM FET ICs shown above.  Once the capacitor cannot hold its designed charge, the BIT3193 PWM controller in the middle of the bottom picture tells the …

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