Hi All,
History:
A coworker has a bum laptop power cord. When I first looked at it, there was no voltage coming out of the coaxial connector, but the green LED on the power brick was on. I noticed some electrical tape around the output cable (DC side) and noticed something had pierced it at one time. I did a continuity check, but no short between the tip and outer conductor. I tried popping the brick apart to look at the inside and make sure the problem was with the cable and not the supply, but couldn't open it.
I powered it up and now the green LED is off and I can hear a high pitched whine coming from the brick. This is rated for 19.5VDC output.
Question:
My question is - unless someone has a surefire way of fixing the brick - can I use another Dell laptop power supply with a slightly lower output voltage? The bad one that I need to replace is rated at 19.5VDC and something like 3.84A. The spare I have is rated at 19.0VDC and something like 4.34A, so I'm good current-wise. My question is how sensitive are laptops? Will a 0.5VDC less make a difference?
Thank you in advance.
History:
A coworker has a bum laptop power cord. When I first looked at it, there was no voltage coming out of the coaxial connector, but the green LED on the power brick was on. I noticed some electrical tape around the output cable (DC side) and noticed something had pierced it at one time. I did a continuity check, but no short between the tip and outer conductor. I tried popping the brick apart to look at the inside and make sure the problem was with the cable and not the supply, but couldn't open it.
I powered it up and now the green LED is off and I can hear a high pitched whine coming from the brick. This is rated for 19.5VDC output.
Question:
My question is - unless someone has a surefire way of fixing the brick - can I use another Dell laptop power supply with a slightly lower output voltage? The bad one that I need to replace is rated at 19.5VDC and something like 3.84A. The spare I have is rated at 19.0VDC and something like 4.34A, so I'm good current-wise. My question is how sensitive are laptops? Will a 0.5VDC less make a difference?
Thank you in advance.