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How do I get into my Easynote R4650 to change power input socket

Having to wiggle power connecting cable to keep power on, power input socket getting hot


Packard Bell Easynote R 4650







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Hi,
check if ur input socket is moving , i mean a bit loose. if so then u got problem with ur DC power jack of ur Laptop. u have to get it fixed. if it seems fine then there should be problem with ur power cable of ur adapter. get it checked for short circuit.

cheers :)

Posted on Oct 22, 2008

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Switch from amd to intel motherboard now have no power


No. Power-supplies are compatible with both Intel and non-Intel motherboards. Look near the Intel CPU for a 4-pin "power" connector -- if there is one, connect the cable from the power-supply into that socket.

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Aloha, I plug the power cord into my computer and the end that actually goes into the comp sometime registers and changes and other times it doesn't. Right now I cannot user my Acer because my...


I'm assuming this a laptop computer and you are having problems with the AC power adapter jack. This is quite common. Often the solder connections securing the jack to the circuit board inside the computer crack, or the contact lugs on the jack itself break. If the problem is a cracked solder connection, the fix is a simple resoldering job (the primary expense is labor to get the board out for repairs). If the jack is broken, it can be replaced - it will be about the same as resoldering plus about $1-$5 for the part.

Sometimes the problem is a broken wire right at the plug on the AC adapter. If it is a standard plug, that can be replaced. If it is an unusual custom plug, you're stuck with replacing the adapter.

To prevent this problem in the future, always hold the plug when you remove it from the computer (never yank on the wire), be sure you insert it straight into the jack when you plug it in, and avoid off-axis stresses on the plug or the cable near the plug.

Jul 10, 2011 | Acer (56.04145.901) (5604145901) Power...

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No power when I switch on computer. Fan not running, power light not coming on. Have tried plugging in to different socket. Still nothing. Taken case side off, double checked all fittings. Cleaned computer...


If you know the receptacles that you have plugged the computer into, indeed have power, I would suggest you diagnose the Power On switch, and the Power Supply.

See of the problem is the Power On switch, or the Power Supply.

A jumper wire is used on the main ATX power cable.

1) If the Power Supply comes on you have a bad Power On switch.
2) If the Power Supply does Not come on, you have a bad Power Supply.

Your problem is posted in the eMachines Bestec ATX-300-12E power supply section.
Going with that we are discussing a Bestec ATX 300 watt power supply, the main ATX power cable is a 20-pin ATX main power cable.

Typical pinout of a 20-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

Note the Green wire in the BACK of the connector, in the photo to the far right.
This is the Soft Power On wire, or also abbreviated as the PS_ON wire.

Note the Black wires. ANY Black wire is a Ground wire.

With the 20-pin ATX power cable plugged into the motherboard, as shown in the photo, a jumper wire is touched to the Green wire, and to ANY Black wire.
The computer (Power Supply) is also plugged into power.

Generally a paper clip is used for the jumper wire.
The paper clip is straightened out, then bent into a U shape.
Black plastic electrical tape is then wound around the middle of the U shape.
This taped area is for your fingers, and thumb to hold onto.

The 'legs' of the paper clip, are then inserted down into the socket holes, in the back of the 20-pin ATX main power cable's connector.

Down into a socket hole with the Green wire, and also into a socket hole with ANY Black wire.
The 'leg' of the paper clip goes down into the socket hole, RIGHT NEXT to the existing wire.

At the end of every wire in the 20-pin ATX main power cable, is a metal terminal end.
The metal terminal end is pretty far down in the socket.
You must ensure that the metal end of the paper clip, touches the metal terminal.

The voltage is 5 Volts DC.
Two D cell flashlight batteries produce 3 Volts DC.
There may be a small spark as you make the connection.

Warning you in advance.
You can see the voltage is VERY low, however.

I would like you to perform this test, then post back in a Comment as to your findings.

Regards,
joecoolvette

Apr 03, 2011 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

Acer power supply problem


Yes but it is expensive. The motherboard has to be removed from the laptop. This is a common problem in that the jack comes loose from the motherboard.

Oct 13, 2009 | Acer (56.04145.901) (5604145901) Power...

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Problem charging my laptop. I have to wiggle and trick it to charge it.


Seems that either the power socket in the laptop has a loose connection, or the battery terminals are not having good contact with the metal prongs connecting it to the laptop charging circuitry.
A quick check to see if the power socket has a loose connection is to remove the battery & power the laptop only from the adapter. If the laptop works from the adapter without having to be wiggled, then the problem is not with the power socket. Instead, it is the battery contacts. Try to clean the contacts using a non-oily contact cleaner & see if this resolves the problem.

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Computer won't power up


loose connections to the motherboard, not having the power cord plugged in all the way, fried power supply, there could be alot of things, try the loose cords, or look inside the computer and check for loose cords.

Jul 13, 2009 | System Power Supplies

1 Answer

Problem with minebea atx power supply


The one extra cable with the small socket may be for the newer computer that require a power imput to the CPU. Also some of the more poswerful Viseo cards also require their own power cord supply. Many ATX power supplys have extra leads not being used .  

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When I plug in my bass into my bass amp I can't hear it


Your best bet would be to take it to a guitar shop, or guitar center. Its a real ***** to mess with stuff like that when you dont know what the hell your doing. Could also be your instrument cable, try using a different one just to make sure thats not the problem.

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1 Answer

Latitude D505


Just repaired a laptop with the same symptoms:
Won't charge the battery, won't power from AC.
Also if you power the AC adapter when not connected to laptop you get green power LED on the adapter. When you plug it in the laptop the green power LED immediately goes out.

Opened it up and found SO-8 P-ch mosfet by the DC input socket. Source (pins1,2,3) is connected to the inner barrel (+19.5V), Gate 4 gets driven low, applying the input to the Drain. (pins 5,6,7,8) On my board the drain was short to GND. Applying power directly to the Drain via a current limited bench PSU (set 1A limit) showed a couple of volts.

Placing a finger on the opposite side of the board revealed a SMT ceramic cap getting hot.
CP13 I think. Opposite side to the power connector, almost under it. I would guess at 1206 or slightly larger and there is an 0402 cap just next to its bottom pad at 90 degrees to it. Cap was glued before soldering so had to flow both sides at the same time with a soldering iron and force off. Would likely have been 1uF or bigger 25V. Removal restored operation. Runs OK without but would suggest putting something in there 0.1uF 1206 50V, perhaps a couple stacked ?

BTW you have to strip down everything and remove the main board to get to the cap :-(

Hope this info is of use....

Robin
die4laser.com

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1 Answer

Packard bell easynote L4


I found a PDF document that's a service manual for an Easynote H3. It takes you to the point of removing the motherboard. I know it's a different model, but maybe it's close enough. If you want me to email it to you, send me an email at jacobson@sonic.net. It's a 1.3-MB file.

There are a lot of steps involved. I would recommend using a multicompartmented tray to hold the removed hardware. Be aware that some notebook ribbon cable sockets release the cable after you lift up on the outer shroud slightly.

If you do this job, look at the solder points first. If they look solderable, FIRST epoxy the power socket to the motherboard. When the epoxy has fully set, THEN resolder the joints. Use a low-wattage iron, not a gun.

I look at it this way: You can't make it work any less, and if you succeed, you'll be proud, and will have saved a lot of money.

Apr 06, 2008 | System Power Supplies

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