Question about Compaq 239427-001 Laptop AC Adapter 18.5V-3.5A(4.2mm+4.8mm)*1.7mm 65W

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When connected to AC mains and switched on there was no sign of glowing led displaying charger is "ON"

DEAD ADAPTER NO 18.6 OUTPUT dc VOLTAGE

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Use multimeter to check output of AC Adapter. If no DC output at required voltage you should replace adapter; available after market units sell for $10 to $15 delivered.

Posted on Jan 03, 2014

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Need to know input, polarity and voltage to ensure I have the right adapter.


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

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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
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Jan 10, 2016 | Computers & Internet

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H. The Samsung TL210 Battery Charger is for charging your battery only. It does not work as AC adapter for your camera

on Sep 21, 2010 | Cameras

1 Answer

I would like to charge my 930 T on 120 volt A C adapter


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

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

6 Volt dc 4w charger for Omron blood pressure unit


You can use a multi voltage mains adapter for your Omron. These are available at electronic stores ot on the Internet. Make sure it is a DC adapter and switch to 6 volts also make sure the power connector is set correctly to the polarity of the Omron power socket.

Nov 30, 2012 | Omron Health & Beauty

1 Answer

My laptop wont come on or charge


Please remove and clean the Battery terminals of the Notebook, make sure that the LED power indicator of the AC Adapter is glowing and output pin of the AC Adapter is properly connected to the notebook. The fault might be either with the output pin of the AC Adapter or Input DC socket of the Notebook. If the LED Power indicator of the AC Adapter is not glowing then the AC Adapter is not working and requires replacement. If the AC Adapter is working then please remove the Battery and turn on the Notebook by directly connecting to the AC Adapter. If the issue still persists, then it might be hardware issue of the Notebook and Service might be required. Please contact the manufacturer to initiate the service.

Mar 29, 2011 | Computers & Internet

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Hi all, TECRA M10 Model No. PTMB3A000N004 Laptop was on standby and was left open all night. Next morning, no response and would not 'wake'. Laptop was plugged in on charge. Hard rebooted...


take a look:

Power Status Check
The following LEDs indicate the power supply status:
q Battery LED
q DC IN LED
The power supply controller displays the power supply status through the Battery and the DC IN LEDs as listed in the tables below.
Table 2-1 Battery LED
Battery LED Power supply status
Lights orange Quick charge.
Lights green Battery is fully charged and AC adapter is connected
Blinks orange (even intervals) The battery level becomes low while operating the computer on battery power.*1
Flashes orange The power switch is pressed on when the battery level is low.*2
Doesn't light Any condition other than those above.*1 Low Battery Hibernation will be executed soon.
*2 Low Battery Hibernation has already been executed.

Table 2-2 DC IN LED
DC IN LED Power supply status
Lights green DC power is being supplied from the AC adapter.
Blinks orange Power supply malfunction*3
Doesn't light Any condition other than those above.
*3
When the power supply controller detects a malfunction, the DC IN LED blinks and an error code is displayed.

-------------------

Error Code Check
If the power supply microprocessor detects a malfunction, the DC IN LED blinks orange. The blink pattern indicates an error as shown below.
q
Start
Off for 2 seconds
q
Error code (8 bit)


"1"
On for one second

"0"
On for a half second

Interval between data bits
Off for a half second

The error code begins with the least significant digit.
Example: Error code 12h (Error codes are given in hexadecimal format.)

Convert the DC IN LED blink pattern into the hexadecimal error code and compare it to the tables below.

q DC IN
Error code
Meaning
10h
AC Adaptor output voltage is more than 16.5 V.
12h
Current from the DC power supply is more than the limit (6.05 A).
13h
Current from the DC power supply is more than the limit (0.5 A) when there is no load.
14h
Current sensing IC is not normal.

q Main Battery
Error code
Meaning
21h
Main battery charge current is more than 6.05 A.
22h
Main battery discharge current is more than 0.5 A when there is no load.
23h
Main battery charge current is more than 3.1A when DC IN direct charge is off.
24h
Current sensing IC is not normal.
25h
Main battery charge current is more than 0.3A when the battery isn't being charged.

q S3V output
Error code
Meaning
40h
S3V voltage is not more than 3.14V when the computer is powered on or off.
45h
S3V voltage is not more than 3.14V when the computer is supports CV and is booting up.

q C5V output
Error code
Meaning
50h
C5V voltage is more than 6.00 V when the computer is powered on or off.
51h
C5V voltage is not more than 4.50 V when the computer is powered on.
52h
C5V voltage is not more than 4.50 V when the computer is booting up.
53h
C5V voltage is not normal when the computer is suspended.
54h
C5V voltage is not normal when the computer supports CV and is suspended.
55h
C5V voltage is not more than 4.50V when the computer supports CV and is booting up.

q C3V output
Error code
Meaning
60h
C3V voltage is more than 3.96 V.
61h
C3V voltage is not more than 2.81 V when the computer is powered on.
62h
C3V voltage is not more than 2.81 V when the computer is booting up.
63h
C3V voltage is not normal when the computer is suspended.
64h
C3V voltage is not normal when the computer supports CV and is shut down.
65h
C3V voltage is not more than 2.81V when the computer supports CV and is booting up.

q PPV output (PCU core voltage)
Error code
Meaning
70h
PPV voltage is more than 1.56V when the computer is powered on or off.
71h
PPV voltage is not more than 0.68V when the computer is powered on.
72h
PPV voltage is not more than 0.68V when the computer is booting up.
73h
PPV voltage is not less than 0.68V when the computer is powered off.

q BGVSNS output
Error code
Meaning
80h
BGVSNS voltage is not more than 1.62V when the computer is on or off.
81h
BGVSNS voltage is not more than 1.02V when the computer is powered on.
82h
BGVSNS voltage is not more than 1.02V when the computer is booting up.
83h
BGVSNS voltage is not less than 1.02V when the computer is powered off.
84h
BGVSNS voltage is not more than 1.62V when the computer is suspended.

q 1R5-E1V output
Error code
Meaning
90h
1R5-E1V voltage is more than 1.80V when the computer is powered on or off.
91h
1R5-E1V voltage is not more than 1.275V when the computer is powered on.
92h
1R5-E1V voltage is not more than 1.275V when the computer is booting up.
93h
1R5-E1V voltage is not less than 1.275V when the computer is powered off.
94h
1R5-E1V voltage is not more than 1.275V when the computer is suspended.

q 1R8-E1V output
Error code
Meaning
A0h
1R8-E1V voltage is more than 2.16V when the computer is powered on or off.
A1h
1R8-E1V voltage is not more than 1.53V when the computer is powered on.
A2h
1R8-E1V voltage is not more than 1.53V when the computer is booting up.
A3h
1R8-E1V voltage is not less than 1.53V when the computer is powered off.
A4h
1R8-E1V voltage is not more than 1.53V when the computer is suspended.

q 2R5-SNS output
Error code
Meaning
B0h
2R5-SNS voltage is more than 3.00V when the computer is powered on or off.
B1h
2R5-SNS voltage is not more than 2.125V when the computer is powered on.
B2h
2R5-SNS voltage is not more than 2.125V when the computer is booting up.
B3h
2R5-SNS voltage is not less than 2.125V when the computer is powered off.
B4h
2R5-SNS voltage is not more than 2.125V when the computer is suspended.

q 1R25-E1V output
Error code
Meaning
C0h
1R25-E1V voltage is more than 1.50V when the computer is powered on or off.
C1h
1R25-E1V voltage is not more than 1.063V when the computer is powered on.
C2h
1R25-E1V voltage is not more than 1.063V when the computer is booting up.
C3h
1R25-E1V voltage is not less than 1.063V when the computer is powered off.
C4h
1R25-E1V voltage is not more than 1.063V when the computer is suspended.

q 2R5-E1V output
Error code
Meaning
D0h
2R5-E1V voltage is more than 3.00V when the computer is powered on or off.
D1h
2R5-E1V voltage is not more than 2.125V when the computer is powered on.
D2h
2R5-E1V voltage is not more than 2.125V when the computer is booting up.
D3h
2R5-E1V voltage is not less than 2.125V when the computer is powered off.
D4h
2R5-E1V voltage is not more than 2.125V when the computer is suspended.

---------------------
In the case of error code 10h or 12h:

Make sure the AC adaptor cord and AC power cord are firmly plugged into the DC IN 15 V socket and wall outlet. If the cables are connected correctly, connect a new AC adaptor and/or AC power cord, if necessary.

In the case of error code 2Xh:

Make sure the battery pack is correctly installed in the computer. If the battery pack is correctly installed, replace the battery pack with a new one.

If the error still exists, the system board or the battery board may be disconnected or damaged. Disassemble the computer and check the connection between the AC adaptor and the system board and connection between the system board and the battery board (if there is one, in my case it was integrated to ths system board).

After checking the connection, perform the following:
Check 1
Replace the AC adaptor with a new one. If the AC adaptor is still not functioning properly, perform Check 2.
Check 2
Use a multimeter to make sure that the F8800 fuse on the System board is not blown. If the fuse is not blown, go to Check 3. If the fuse is blown, go to Check 6.
Check 3
Use a multimeter to make sure that the F1000 fuse on the Battery board is not blown. If the fuse is not blown, go to Check 4. If the fuse is blown, replace the Battery board with a new one following the instructions in Chapter 4.
Check 4
Make sure that the Battery board cables are firmly connected to PJ8820 and PJ8821 on the System board and to PJ1000 and PJ1001 on the battery board. If they are connected firmly, go to Check 5.
Check 5
The Battery board or System board may be damaged. Replace it with a new one following the instructions in Chapter 4.


I hope this helps many people with the troubleshooting. Details may vary as models vary, but most if it is the same for every Toshiba

Mar 03, 2017 | Toshiba Tecra M10 Notebook

1 Answer

The laptop doesn't boot. Its dead. I tried connecting the charger, but it doesn't shows any signs of charging. It doesn't even show the laptop is charging.i.e no led is lit when charger is connected.Please...


Hi.

If it is completely dead check the voltage at power adapter DC contacts using a multimeter.

If there is voltage within 0.5 Volts from specifications, then try starting the laptop with no internal battery. A shorted battery may cause the laptop not starting.

If battery and adapter are OK, then the problem is the DC socket in the laptop motherboard. The laptop must be taken apart and the solder joints soldered back. This is a delicate job and must be done by an experienced repairer.

In some case the whole power circuit or the main board may be faulty. Testing is done reading Ohms at DC socket solder joints on main board (or power board, depending on model).

Regards.

Ginko.

Aug 09, 2010 | HP Compaq Presario V5204nr Notebook

1 Answer

Vgn fs 980 adapter how to tell if it is not working


AC adapter? Test the output voltage.

Use a multimeter.
Stores like Radio Shack, Walmart, and auto parts stores, for a few examples have cheap one's you can buy.
About $12.

Set the multimeter knob to DC volts, and the 0 to 50 Volts scale.

The middle hole of the AC adapter plug is the Positive connection. This is where the Red lead goes.

The outer shield of the plug is the Negative connection. This is where the Black lead goes.

Look on the AC adapter for the OUTPUT VOLTAGE
(Not shouting)

Example:
I'm looking at an AC adapter for an IBM Thinkpad 370, right now.

INPUT: 100V 50-60Hz 130A
OUTPUT: 18V ~~~3.36A

The Output voltage is 18 Volts
The Output Voltage of your AC adapter should be close to this.

Dec 20, 2009 | Sony VAIO VGN-FS980 Notebook

1 Answer

Hp pavilion dv5-1002nr will not power up


Let's run through a basic flow chart.

1.Plug the AC adapter, (Charger), into the laptop.

Is the Power LED light on, and the Battery charging light?

[The Power LED light is on the front edge of your laptop, all the way to the left.

There are three small rectangular LED lights in this area.
1) All the way to the Left - Power LED light.
2) In the middle - Battery Charging LED light.
3) On the right - Harddrive Activity Lamp {Light}
The HDD Activity lamp blinks when harddrive is in use]

Gently wiggle the AC adapter plug, that is plugged into your laptop.

Does the Power LED light and/or Battery Charging light, 'Wink' when you move the plug? (Blink)

Does it stay on when you keep it over to a certain position?

If so, you have either a bad plug on the end of that AC adapter cable, wires that are bad in the cable itself, or a bad DC Power Jack.

(The DC Power Jack, is the port where you plug the AC adapter in. May be labeled as DC IN)

Do you wish to test the AC adapter plug?
See if it has an intermittent connection, due to a break in the wires that meet the plug?

And/or, see if the AC adapter is putting out any voltage, and if so, the correct amount of voltage?

Do you have a multimeter?

A cheap, yet effective multimeter, can be purchased for around $10 to $12 at most auto parts stores. (Radio Shack has them, and a multitude of other stores also. Not an advertisement for Radio Shack)

Set the multimeter to DC Volts, (Turn the knob in the front), and if it has a separate setting, set it to DC Volts - 50 Volt scale.

Read the label on the AC adapter's case. You are looking for the OUTPUT voltage/amperage.

Example:
I'm looking at an Acer Aspire laptop's, AC adapter right now.

INPUT: 100 - 240V ~ 1.8A - 50/60Hz
OUTPUT: 19V === 3.42A

The Output voltage is 19 Volts.

AC adapter plugged into the surge protector.
The Red lead, (Positive), of the multimeter, (Right now it's being used as a Voltmeter), is inserted into the middle of the AC adapter plug.

The center of the plug is the Positive connection.

The Black lead, (Negative), is held against the outside of the AC adapter plug. The round cylinder of the plug on the outside.

This illustrates the AC adapter,

http://www.buy.com/retail/product.asp?sku=213337465&listingid=63465880

The photo shows the AC adapter charger body, attached to the cable with the plug.
To the top left you see the plug, and the shiny metal cylinder. The Black lead touches the outside of the cylinder.

Read whether you are getting voltage, and the proper amount of voltage.
Gently wiggle the plug back, and forth, and see if there is a break.
Voltage, no voltage.

If the AC adapter proves to be good, you have a problem with the DC Power Jack. (DC IN)

The DC Power Jack is on the right side, all the way to the rear.

The setup, and mounting for this DC Power Jack differs from most laptops.
Most laptops have the DC Power Jack soldered directly to the motherboard, or are soldered to a separate small circuit board, that plugs into the motherboard.

This jack has a cable leading from it, and the jack attaches to the bottom case of the laptop, via a small bracket.

To illustrate what I'm referring to here, you may want to download, (Free), the Maintenance and Service Guide from HP Support.

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=3753576&lang=en&

(Just click on the X, of the small survey window that comes up)

On this page Left-click on -
HP Pavilion dv5 Entertainment PC - Maintenance and Service Guide
(10th file down. This is a PDF file. The computer you are on now has Adobe Reader on it, which uses PDF files)

Give it a few seconds to download. It may take up to 20 seconds before you see the first page.
I advise wait, until it has fully downloaded before looking through it, or you may break the download connection.

Under the Bookmarks column to the left, click on the + sign next to - Removal and replacement procedures

Click on the + sign next to - Component replacement procedures

Scroll down, and click right on - Power connector cable

(Or use the blue down arrow above to go to Page 96)

Point of this?
If you are technically inclined, you could disassemble the laptop, and replace the Power connector cable.
The DC Power Jack is part of the Power connector cable.

[BUY and USE an ESD wrist s-trap. Connect the alligator clip to a good ground source. I use an empty desktop computer case, and connect to the metal frame.

Average cost is around $6 for this device. Can be found in a multitude of stores. Again, Radio Shack is one source, but there are many.

Use a multi-compartment container for the various screws you will remove. Label each compartment for the area the screws came out of.
You can use a clean egg carton in a pinch.

Make notes, and drawings as you disassemble. Use a digital camera if you have one available.

Check with HP to see if this part is available. I also would check online, and you may want to give thought to Ebay]

2. If the Power light stays on with no intermittent problems with the DC Power Jack, or the AC adapter:

A.There may be a problem with the Power On switch itself. (Under the Power On button)

B.The Ram Memory modules, (Slang is Stick), may have become jarred loose.
AC adapter unplugged, battery removed. Open the Memory Compartment, and remove all ram memory modules. Now reinstall them.

Reinstall the Battery, and then the AC adapter. (Then plug the AC adapter into the surge protector)

Power On the laptop.

C. The Harddrive might not have a good connection.
All power sources removed again, open the Harddrive, (HDD), Compartment.
Make sure the harddrive's plug is tightly connected.
(Page 62)

D.If none of the above cures the problem, then it's time to seek a professional, competent computer repair shop.

The charging circuit of the motherboard may be bad. There is a sensor that determines if power should come from the AC adapter, or the battery.
It also determines if the battery needs charging.

You may have harddrive failure.

[Again, if the shop does determine it to be a bad motherboard, AND you feel technically inclined, you may want to replace the motherboard yourself.

Check online, and also Ebay]

Dec 16, 2009 | HP Pavilion dv1000 Notebook

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