is my Acer blown wrong charger used - Techwatch Support Forums: Digital & Satellite TV, FTA, Cable, Computers, Mobile Phones, Apple and General Tech Forums

lambo · 21-06-11, 09:43 PM

A friend has put the wrong charger into his acer travelmate 5740 laptop and now its not working, is there any hope for it are there fuses inside the laptop anywhere ?

G77 · 21-06-11, 10:07 PM

yeah, there will be fuses next to the connector but if its wrong voltage it might not have blown them.

what voltage was applied and what should it have been?

tbh, if 19v has been applied to a 12v board it wont be good. if its 14.5 or so, it shouldnt have done much.

how long was it applied too?

lambo · 21-06-11, 10:20 PM

it should be 19v only, he used just a 20v one from his sisters laptop only 1v in the differance but even with the original charger it wont come on the green light to say it charging doesnt come on either

G77 · 21-06-11, 10:32 PM

cant see 1v doing much. the voltage regulators usually work over a range i think.

it does have the same polarity doesnt it? i mean the centre is still +'ve and the outer still -'ve ?

lambo · 21-06-11, 10:57 PM

center is plus yes, i wouldnt have tought an extra 1v would have blown it but it must of as it does not come on not even the power light

TheBadger · 22-06-11, 07:21 AM

It may just be that the battery has died coincidentally. How long has he had it? Some devices will only work if a chargeable battery is present.

lambo · 22-06-11, 04:08 PM

Im not sure how long he has had it but even without the battery it wont work I think the Board is gone

TheBadger · 22-06-11, 05:28 PM

Have you checked the output from the correct power supply? Maybe that's at fault. I very much doubt that 1v too much would cause a problem. Have you checked the internal fuses? It may be that the battery has to be viable and in place for the machine to work.

lambo · 22-06-11, 07:04 PM

I havent checked for internal fuses I will take it apart over the weekend and have a look.
Thanks

PcTestCard.co.uk · 24-07-11, 10:31 AM

Try the following to discharge and reset your laptop first.

Please remove all removable parts like DVD, exteral USB device(if any), remove battery and unplug the AC adapter, then press the power button over 15 seconds do not let go.
Then, connect the AC adapter only and power on the laptop again.

Hope this helps!
Bill
Tech Manager

21-06-11, 09:43 PM	#1 (permalink)
lambo Senior Member Join Date: Mar 2008 Location: Dublin, IRL Posts: 889 Thanks: 176 Thanked 89 Times in 83 Posts	is my Acer blown wrong charger used A friend has put the wrong charger into his acer travelmate 5740 laptop and now its not working, is there any hope for it are there fuses inside the laptop anywhere ?

21-06-11, 10:07 PM	#2 (permalink)
G77 Super Moderator Join Date: May 2008 Posts: 6,118 Thanks: 695 Thanked 1,250 Times in 1,044 Posts	Re: is my Acer blown wrong charger used yeah, there will be fuses next to the connector but if its wrong voltage it might not have blown them. what voltage was applied and what should it have been? tbh, if 19v has been applied to a 12v board it wont be good. if its 14.5 or so, it shouldnt have done much. how long was it applied too? __________________ 1M Motorised Dish, 45W-36E, DM800HD. Quad LNB Mesh Mini Dish, 28.2E, DM500, TM500. Samsung Galaxy S GT-I9000 XXJVU & CF-Root.

21-06-11, 10:20 PM	#3 (permalink)
lambo Senior Member Join Date: Mar 2008 Location: Dublin, IRL Posts: 889 Thanks: 176 Thanked 89 Times in 83 Posts	Re: is my Acer blown wrong charger used it should be 19v only, he used just a 20v one from his sisters laptop only 1v in the differance but even with the original charger it wont come on the green light to say it charging doesnt come on either

21-06-11, 10:32 PM	#4 (permalink)
G77 Super Moderator Join Date: May 2008 Posts: 6,118 Thanks: 695 Thanked 1,250 Times in 1,044 Posts	Re: is my Acer blown wrong charger used cant see 1v doing much. the voltage regulators usually work over a range i think. it does have the same polarity doesnt it? i mean the centre is still +'ve and the outer still -'ve ? __________________ 1M Motorised Dish, 45W-36E, DM800HD. Quad LNB Mesh Mini Dish, 28.2E, DM500, TM500. Samsung Galaxy S GT-I9000 XXJVU & CF-Root.

21-06-11, 10:57 PM	#5 (permalink)
lambo Senior Member Join Date: Mar 2008 Location: Dublin, IRL Posts: 889 Thanks: 176 Thanked 89 Times in 83 Posts	Re: is my Acer blown wrong charger used center is plus yes, i wouldnt have tought an extra 1v would have blown it but it must of as it does not come on not even the power light

22-06-11, 07:21 AM	#6 (permalink)
TheBadger Senior Member Join Date: Mar 2006 Posts: 202 Thanks: 1 Thanked 10 Times in 10 Posts	Re: is my Acer blown wrong charger used It may just be that the battery has died coincidentally. How long has he had it? Some devices will only work if a chargeable battery is present. __________________ I used to be paranoid but now I'm a victim!

22-06-11, 04:08 PM	#7 (permalink)
lambo Senior Member Join Date: Mar 2008 Location: Dublin, IRL Posts: 889 Thanks: 176 Thanked 89 Times in 83 Posts	Re: is my Acer blown wrong charger used Im not sure how long he has had it but even without the battery it wont work I think the Board is gone

22-06-11, 05:28 PM	#8 (permalink)
TheBadger Senior Member Join Date: Mar 2006 Posts: 202 Thanks: 1 Thanked 10 Times in 10 Posts	Re: is my Acer blown wrong charger used Have you checked the output from the correct power supply? Maybe that's at fault. I very much doubt that 1v too much would cause a problem. Have you checked the internal fuses? It may be that the battery has to be viable and in place for the machine to work. __________________ I used to be paranoid but now I'm a victim!

22-06-11, 07:04 PM	#9 (permalink)
lambo Senior Member Join Date: Mar 2008 Location: Dublin, IRL Posts: 889 Thanks: 176 Thanked 89 Times in 83 Posts	Re: is my Acer blown wrong charger used I havent checked for internal fuses I will take it apart over the weekend and have a look. Thanks

24-07-11, 10:31 AM	#10 (permalink)
PcTestCard.co.uk Junior Member Join Date: Jul 2011 Posts: 21 Thanks: 1 Thanked 2 Times in 2 Posts	Re: is my Acer blown wrong charger used Try the following to discharge and reset your laptop first. Please remove all removable parts like DVD, exteral USB device(if any), remove battery and unplug the AC adapter, then press the power button over 15 seconds do not let go. Then, connect the AC adapter only and power on the laptop again. Hope this helps! Bill Tech Manager

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Laptop Charger	Spewy	Laptops	1	13-10-11 10:49 AM
Acer Revo 100 multimedia PC launched	Computer News	PC Hardware	0	07-12-10 02:40 PM
Acer Aspire One Happy dual-boot netbook launched	Computer News	PC Hardware	0	12-10-10 02:50 PM