I want to plug an AC adapter into the DC input (normally runs on 3 AA batteries. How much output should the adapter put out?

Complete Guide to Using the Correct Charger or Power ...

www.groovypost.com/.../choose-right-power-adapter-charger-phone-lap...

Jun 24, 2013 - If the device has a DC input of +12V / 5.4A, get an adapter that has a DC output of +12V / 5.4A. If you have a universal adapter, make sure it has the proper current rating ... Ideally, you'll have the same voltage, current and polarity on your ......or hdmi on my laptop .can you say what's the reason for the same.

How to select an AC to DC power adapter - ApogeeKits

www.apogeekits.com/power_adapter_selection.htm

An explanation of regulated versus un-regulated AC to DC voltage power adapters. ...voltage output power adapters and how to use this information to select the right one... Some (more expensive) DC voltage output power adapters have voltage ... Care should be take to ensure that the maximum input voltage of the load ...

AC/DC Power adapter ' Laptop Parts 101

www.laptopparts101.com > Laptop parts

Dec 26, 2008 - It's very important to use the right adapter for your laptop. ... Polarityon the new adapter's plug must be the same as on the original ... AC/DC power adapter voltage and amperage ..... I have purchased an non-hp dc-dc convertor (150W), 12Vinput, 19V output. .... So the cable component has to be replace.

Determining Proper A/C Polarity - Galen Carol Audio

www.gcaudio.com > Resources > How-To's

If this is a battery powered CD player,
we are talking mA not amps.....6 x 1.5volt batteries give you 9 volts
I would recommend something like this:-
http://www.ebay.co.uk/itm/New-AC-DC-Universal-Travel-Adapter-Input-110-220-Volt-7-Output-500mA-/251316939793?_trksid=p2054897.l4275 This will have more than enough power for the CD Player.

You probably blew it. It sounds like the power supply put out more voltage then needed. Also they come in AC/DC, putting AC into a DC input usually blows things, dC into an AC normally does not hurt it assuming the voltages are in range in all cases.

The speakers use a 10 Watt power supply

SPECYFIKACJA :

• V detection
• Cigarette lighter plug
• Double output
• Discharge function
• Dla Ni-Cd/ Ni-MH battery
  

• Input voltage: 230V AC, 50Hz, 13.8V do 24V DC

• Output :
• Dla 230V AC or 24V DC input: 5.6V DC (4 celle) do 11.2V DC (8 cell)
  • Dla 24V AC input: 5.6V DC (4 celle) do 8.4V DC (6 cell)

• Output regulowany : 1,000/2,000/3,000mA

Test your battery on another similar laptop or use a known good working battery just to help rule the batter out. If it does not power ON using AC adapter, it could be something on the motherboard or your AC adapter. I suggest you first check the output of your AC adapter using a multimeter. The voltage reading you get should equal the one on the adapter's label.

Also check DC connection (where output jack of adapter plugs into the laptop) as sometimes it breaks and does not make contact with the motherboard.

And lastly may be you can try a power drain... remove the battery and unplug ac adapter. Press and hole power ON button for 30secs at least. Put back the battery and plug back AC. Power ON as normal.

Kodak has 3 types of charger that can be connected to a wall socket
USB AC Adapter - is especially useful when traveling, away from your computer, or just plain on-the-go. Connect your camera's USB cable to the adapter and plug it into a wall outlet to conveniently charge your camera.
5V AC Adapter - Provides in-camera charging for all KODAK EASYSHARE M and V Series Digital Cameras
Input: AC 100-240 V 50/60 Hz Output : DC 5.0 V
3V AC Adapter - Provides direct power to your camera but it will not charge the camera battery
Input: AC 100-240 V 50/60 Hz Output : DC 3.0 V

* You need to check the type of adapter your using. If your using the 5V AC adapter or USB adapter and the camera won't charge the battery contact kodak support line 1 800 235 6325 (23KODAK) for possible repair.

you need do check:
1) no charging means adapter input problem, first check your adapter DC output voltage is ok
2) check DC jack socket on the motherboard:
--- DC socket any pin disconnected, you need use iron and flux to fix it
--- DC socket damage(broken),you have to change it
3) if DC socket connection normall, the DC/DC circiute near around DC socket some component damage, you need find a technacian to repair.
hope help you to deal it well

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