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Was using a RS 22-506 PS as a battery charger when PS lost AC power while still connected to battery. Afterwords PS does not work. What is the most likely culprit? The 2N3772 transister?

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  • Computers & ... Master
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Mains fuse.

Posted on Dec 02, 2016

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Posted on Jan 02, 2017

pgh_pa_guy
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SOURCE: new charger but no ac power to pc

A common problem is for the power jack connections on the system board to go bad. They break loose from the main board because the power plug gets flexed and then the power doesn't get from the adapter to the board. No power light (or intermittent flickering) and no battery charging results.

What you need to do (or have done) is to resolder the power jack onto the board. This isn't difficult, but it involves getting the main board out to reach the solder side. In some cases the board can be damaged because of the bad connections and isn't repairable. Then the board needs to be replaced. But most often the soldering fixes the trouble.

Posted on Apr 08, 2009

  • 979 Answers

SOURCE: Need an AC charger for my Hoverlite helicopter battery pack

visit your local deler if they have extra charger for your heli, if non is available, ask if any aftermarket ac charger can do. better yet, ask a friend who knows electronics to build a charger for you.

Posted on Jul 09, 2009

  • 37 Answers

SOURCE: dell laptop will not accapt ac power or charge

Hmmm, check out the port where you plug in the charger. Has the internal pin been bent or pushed in? I've seen that happen on other devices. If you have access to another charger try that ... it *may* have a slightly longer reach ... the manufacturing tolerances are tight .. but there may be a slight difference between units.

Cheers,
Ripface.

Posted on Sep 26, 2009

TampaNative
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SOURCE: my compaq laptop work with

You may want to check the DC Jack (where the Power Supply plugs into the laptop), it may have failed?

Posted on Oct 28, 2010

  • 15 Answers

SOURCE: Dell inspiron 6400-runs slow on AC power but not on battery

If you want to fix the issue quickly, try the Dell speed up solution available here: http://www.speedupslowdell.com/ Hope this helps!

Posted on Jun 23, 2012

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Mains adapter for auto-xs power station not working


It could be that the internal battery is too discharged for the AC charger (as supplied with the Power Station) to work.
You could try charging the Power Station using a Vehicle (Car/Motorbike) 12 Volt battery charger, connecting the Crocodile clips on each unit.
I''ve just done that, although once 'I'd got the Power Station battery's voltage above 2 Volts, I used a 'special' charger (Optimate 5) that automatically applies several modes including 'Desulfation' for recovery.

Oct 05, 2012 | Cameras

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My lenovo G550 appears not to charge when the charger is plugged in despite turning the mains power on and off to see if power is getting though and the blue neon light showing on the mains...


Hi m529,

I see you are having issues with you G550 charging.

You mentioned that the light on the charger is lit up but then it suddenly switches Off, and you also mentioned that the charge still has a light but the power is somewhat low despite of a fully lit up charger Light.

Have you tried draining the power from the system?

  • Remove the battery and the Charger or AC Adapter as well call it from the G550 then press and hold down the power button for 10-15 seconds to drain power from the system motherboard.
  • Once drained connect the AC adapter but do not connect the battery yet, then turn the Laptop ON to see if the system will power ON using the AC adapter/Charger if it powers up then there is no problem with the AC adapter/charger.
  • After testing the AC adapter if it is working power down the Laptop doing a normal shut down.
  • Once shut down or turned Off insert the Battery back in the Laptop then turn the Laptop ON using the battery only without the AC adapter/charger see if the system will turn ON using the Battery only.
  • If the Laptop powers On using the battery alone with out the AC adapter then the battery is most likely working as well on the issue.
  • Now power down the Laptop then connect the AC adapter to the Laptop with the Battery in the Laptop as well then turn the system ON again see if the problem will Occur again having the battery and the AC adapter/charger if the Problem happens with both Battery and AC adapter on the Laptop then the problem is the Motherboard, most probably the motherboard is having issues relaying power from the AC adapter to the battery and may be sent to the Depot for repairs.
I suggest that you call Lenovo for further information about your system, if you still have warranty and is still in the one year period then your system will be covered for any repairs needed - you can call @ 1 877 453 6686 for troubleshooting, you will be asked for a serial number Located underneath the Laptop on a small white sticker that states s/n meaning serial number.

I hope that this Helps.

Have a nice day,

mvincentc

Jun 18, 2011 | Lenovo G550 PC Notebook

2 Answers

Battery will not show or charge even with new battery. It will run on a batery that has a charge in it but will not charge one. Is there a fix or is there a charger that can be use instead of one in...


With my laptop, I held the power button (still with everything removed) for 30 sec to decharge the capacitors. Finally, put the battery back in and plugged in the adaptor and everything worked

Jan 11, 2011 | Sony VAIO VGN-A790 Notebook

1 Answer

Lost the wall charger of my Schumacher 400w power inverter (model PP-2200), where can I get another one?


Ah, I see, it seems what you have is a power pack. If so it would contain a gelcell battery, probably 12 volts. If this is true, then you may charge it with any 14-16 volt wall charger. You have to make sure you observe correct voltage and correct polarity when connecting up. Also you may have to obtain and change the plug on the charger wire.
I'm assuming the battery DC output is inverted to AC and you use it to power small AC appliances.

Mar 21, 2010 | Schumacher 400w Power Inverter

4 Answers

I left my Compaq 2510p on standby with the battery low a couple of hours ago. I have now connected it to the mains charger and tried to turn the machine back on, but it won't turn on...any ideas what I...


Might be stuck in hibernation. Pull the battery and ac power for about 1 hour. Replace and try to boot. If fails, pull the battery and try to boot just off ac power.

Dec 01, 2008 | HP Computers & Internet

1 Answer

Battery problem...


This issue can be caused by any of the below possibilities. 1.- Computer AC / DC cable is bad not allowing the computer battery to charge.
2.- Battery is bad.
3.- Battery charger board is bad.

Solutions:
1.- Computer AC / DC cable is bad not allowing the computer battery to charge
Verify that the AC and or DC cable is not bad by testing the computer only with the power plug connected and the battery out of the laptop.
2.- Battery is bad
It is possible that if the power plug is good that the computer battery is bad. Leave the computer connected to the power with the battery connected in the computer for at least one hour; if the battery does not charge, consider having the battery and/or the laptop serviced or repaired.
If the computer and/or battery is not in warranty consider just replacing the battery as it is very likely that it is just a bad battery.
3.- Battery charger board is bad
If the battery has been replaced or an alternate battery from an alternate identical laptop does not work in the computer, it is likely that the power or charger board within the laptop is bad. It is recommended that the laptop be serviced or repaired.


This will fix your problem.
Don't forget to rate my help! :-)
Thank you for using FIXYA!
Pablo

Oct 14, 2008 | Dell Inspiron 6000 Notebook

1 Answer

Itermttit ac and battery power on laptop compaq presario r3000. ac sees to work fine and then goes to battery (battery discharges in less than 30 miutes) - mp


your are probably experiencing a short in your ac cable, the next time it happens wiggle the cable, if the ac pops up in the task bar stop using the charger and buy a replacement.
PS check the slot where the adapter plugs in the back of the laptop to see if its loose, if it is take to the repair shop.
compaq are known for tis problem.

May 26, 2008 | Compaq Computers & Internet

1 Answer

My PC won't run with ac /dc power!


Hello. There is a hardware failure with the laptop not the AC charger. AC chargers have some range of protections of their own. If the power requirements of the laptop are bigger then what the charger can handle, the charger will turn off. Also other parameters can bring the charger offline. In your case, you have a problem with a small chip, the battery charge controller unit, witch regulates the amount of current required to propperly charge the battery. When this thing fails, the charging requirements for the battery are reported rong and the AC charger is forced to give more power then necesary. This results in disconnection of the AC charger ( an internal fail safe of the AC charger) and the laptop to swich back to battery power. When the laptop is turned off, it can charge the battery because the power requirements are low, having all processor, main board, hard disk etc turned off. Therefore the AC charger can handle the load. However you will need to have it checked by a service center as it is a hardware fault. Both AC charger and laptop needs that check. The charge controll circuit needs to be replaced probably. It will be a somewhat expensive repair. Don't buy any other battery untill you have the laptop checked. For more aditional info please post back. PS. Sorry for my bad english, I am from Romania, it is pretty hard for me to explain tehnical stuff in english.

Feb 12, 2007 | Sony VAIO FRV28 Notebook

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