Member Avatar for TheWern

Hi All,

I have a Toshiba A60. When I press the power button, instead of turning a constant blue and booting up, it flashes blue once and does nothing else. Even with everyting unattached. Have tried another working harddrive. It does the same with ac adapter plugged in or running on battery. Have tried with a new battery as well.

Originally it worked OK but was dropped. This broke the power jack which I desoldered and replaced with a new one. I have worked on a number of A60's and done the power jack replacement a number of times with no probelm.

Any ideas? ? ? ?

Thank you,

Sandy

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  • Latest Post Latest Post by sittas87

Dani AI

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Short practical checklist and next steps based on the attempts already described by and the suggestion from .

  • Do a close visual inspection under a magnifier for cracked traces, lifted pads, burned components or bulging capacitors around the DC jack and power circuitry. Physical drops commonly cause hairline fractures or cracked solder joints that only show under magnification.
  • Verify the adapter at the plug with a multimeter (DC volts). Then measure at the board input point (across the input fuse or the first power pad). If the adapter voltage is present at the jack but missing on the board, look for an open SMD fuse (small rectangular part, often labeled F1/F2) or a bad connector.
  • Check for shorts on the main rails: with power removed, use a multimeter resistance/continuity check from rail pads (3.3V, 5V rails if you can find them) to ground. A very low resistance suggests a shorted component (MOSFET, regulator or capacitor). Use a current-limited bench supply or a series incandescent lamp to limit current if you must try powering for diagnosis.
  • Try EC/BIOS reset steps: remove all power (battery and adapter), disconnect/remove the CMOS coin cell for a few minutes, then press and hold the power button for 10–20 seconds to discharge caps before attempting to power up again. Also reseat RAM and try one module at a time.

If a fuse, MOSFET or connector solder joint is open/damaged these are repairable at component level. If visual inspection and the above tests show no open fuses or shorts, a drop can still damage BGA solder joints, the EC or chipset; that often requires professional rework or a replacement motherboard. For data safety, remove the drive and back it up before more invasive work. If unfamiliar with board-level work or lacking tools, send the machine to a repair shop rather than powering repeatedly — that reduces risk of further board damage.

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Member Avatar for sittas87

seems you a pro in that part but dis one is not giving in easily huh.have you tried another monitor??normal pc one? have you thought about lcd and other power source cables being firm intact.can only be one of the that seeing youre always doing youre good soldering joby

Member Avatar for TheWern

The best advice I can give abyone when fixing any machine is to have a working second one so you can do identical tests. But in this case I am out of my depth.

On the working one, if I remove the screen, DVD Rom, keyboard, the hard drive, the keyboard and then press the on/off button, the light still shows as a solid blue and starts to try and boot.
The problem one still just flashes once and thats it! ! ! As they are both running off fully powered batteries (and swopped them) so it cant be the power jack I just soldered in. I cant see anything else wrong.

Original problem - it was dropped, which broke the power jack.

I am still stumped.

Member Avatar for sittas87

maby its just kapoot

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