Question about Umax ActionBook 333T Notebook

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333T's AC/DC adaptor broken

The adaptor can't be used. Three of the four wires are broken off next to the plug which fits into the computer. Someone told me it could be soldered -- but only by a person who knows how the wires should be arranged in the four holes. Where can I get it fixed, or replaced? (I'm in New York City & would rather have it done locally if possible.)

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  • Master
  • 6,487 Answers

You can check this link for this repair http://www.fastlaptoprepair.com/city.asp?st=New%20York

Hope that helps.......

Posted on Aug 29, 2008

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  • Umax Master
  • 13,433 Answers

Hey,

I would get a replacement ac adapter from www.ebay.com if you post me the details on the apdater I can look it up for you

Thanks,
Ekse

Posted on Aug 29, 2008

  • Ekse Sep 03, 2008

    Comment as requested.

  • Ekse Sep 03, 2008

    Please accept my solution as we have solved the problem.


    Thank,
    Ekse


    PS. if you still require futher assistance feel free to contact me.

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The AC adaptor goes into the AC socket, NOT the computer connection. The Computer connection is DC and comes from the DC side of the Adaptor. If you mean the DC socket has broken, then you need someone to replace it inside the computer.
If the AC adaptor has failed, you can buy a replacement ( 19V 3.16A 60W AC Adapter).
See the Manual
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if u have a lot of ac adaptor then find thesame voltage output to ur gadget..if you don't have the exact voltage dc output for ur gadget better buy one....what is your machine need? ac power or dc power? if your machine is electronicaly operated so u need is dc power...but if your machine is like a motor so u need is ac power....tnx

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Dc jack of labtop getting vey hot


A common weak spot on most laptops is the DC power jack. If someone trips on the wire while you have the power adaptor plugged into your laptop, chances are that the power jack will get damaged.
On most laptops the DC power jack is soldered directly to the motherboard and there are only three or four small pins holding it in place. Unfortunately that makes the power jack quite weak. Any sideways pulling of the DC power cord while attached to the laptop will usually dislodge at least one of these pins, breaking the solder around it. Modern laptops use quite a lot of power, from about 70W to 120W or even more. The bad electrical connection from the dislodged pin will cause sparks and heating that will eventually burn a hole through the motherboard and can even be a fire hazard.

The usual signs of that are:
  • The battery is not charging properly or stays at half charge despite that you have been using the power adaptor.
  • The screen flickers (the brightness is changing) while the power cord is plugged in. This is caused by the laptop switching between DC power (screen is brighter) and battery power (screen is dimmer).
  • The DC plug gets hot after a few minutes of use and may even smell of burning.
  • There are "scratching" sounds coming from the DC jack.
You need to take the unit apart and check/resolder the DC jack on the system board.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

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My ibm think pad t40 is not switching on


Hi
Assume you are trying this on battery and mains?
1st thing is to check if the AC power adaptor is giving out any power, which you can do by obtaining a multimeter and setting it to 50 volts DC. Place the positive probe in the centre of the adaptor plug and the negative against the outside of the adaptor plug and see if you get a reading. this will confirm that there is power getting to the laptop

(NOTE: THIS IS TO BE TAKEN FROM THE DC END of the power adaptor NOT from where the kettle lead AC source enters the adaptor.. if in doubt, get someone who is competent with using a meter)

2nd, is to check that the power button is not sticking and that the small plastic pin between the laptop body and the screen ( I think these have one) is not stuck, preventing it booting

3rd, If you are getting power by AC to the laptop, check the condition of the DC jack socket, if it is loose, appears to spark whrn the jack is plugged in or crackles, this will need replacing

4th, If the above do not work, it is possible that the main fuse in the laptop has gone...specialist repairers job.

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Sounds like you have a broken DC Power jack. This is where the small socket where you attach the AC adaptor breaks loose from the motherboard , resulting in the laptop not charging properly or at all . If you have to wiggle the power jack to get a connection then this is definately theproblem.

Most computer reapir shops can do this for about $100. Or if your handy with a soldering iron and dont mind disassembling the laptop , you can always buy a new DC jack for your make and model off ebay and try to solder it yourself!

If you found this post helpful , please rate my post

Regards
1234s282

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2 Answers

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Adaptor


Hey,

Have a look is this the power adapter,
CLICK HERE EBAY PRODUCT

Aug 29, 2008 | Umax ActionBook 333T Notebook

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Lap top problem


Hi

If the AC power light is blinking, try the following steps:

1 Cut off power to the computer by disconnecting the AC adaptor and removing the battery. The error condition will be interrupted, and the AC power light will stop flashing.

2 Put the battery back into the computer. Do not connect the AC adaptor. Try turning the computer on again. If the computer starts normally, the AC adaptor may be
defective and will need to be replaced. If the AC power light starts flashing, remove the battery, and continue with the steps below.

3 Connect the AC adaptor to the computer. Leave the battery out of the computer. Try turning the computer on again. If the computer starts normally, the battery may need charging, may be depleted, or may be defective. Turn the computer on, insert the battery, and then leave the computer running for several hours, which will deliver a slow, steady “trickle-charge” to the battery. Once the battery has been trickle-charged, it may begin working correctly again. If the trickle-charging does not prove effective, consider replacing the battery with a new one.

4 Connect the AC adaptor to a different power outlet, preferably in a different room. If the computer starts normally, there may be a problem with the AC outlet itself, or the voltage level available from it.

5 Verify that the AC adaptor is the correct unit for your computer model. The computer may not be able to start from an AC adaptor that is rated for less current (amperage) than the computer requires, even if the rated voltage is correct, and the plug fits correctly in the DC-IN socket. The labels on the bottom of the computer and the AC adaptor show the specifications for voltage ("V") and current ("A") for each device. The voltage level must match exactly. The amperage rating of the AC adaptor must be equal to or greater than that required by the computer

Regards
Mike

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2 Answers

Dc jack


The PCG-K37 (Sony VAIO Laptop) uses a DC Jack soldered to a two-wire jacketed (shielding) cable that is routed under the DVD (tray) and towards the back to the Voltage Board located under the Touch Pad (Mouse) via a white polarized plug. The wires are color-coded Red (+) and Black (-); a third black wire is NOT attached to the DC Plug, but is used as a grounding wire for the Voltage Board to the LCD Hinge MOUNT only. Remove the battery and DC plug (AC Adaptor Wire) from the laptop first, before going any further.) To access the DC Plug requires removing the Keyboard Hood (houses the stereo speakers & power button) carefully by prying up from where the F-Keys (top row) are. There are four (4) slots: above the "Delete Key," and "F10" and "F4" and "ESC Key," and you will have to press these keys to see the pry slots for a thin blade screw driver to fit. The "Hood" pops up gently and is connected by a thin strip "Wire Cable" through the aluminum keyboard shield down to the motherboard. The "Wire Strip" cable is held in place on the Power Button Board by a sliding pressure retainer (Tan in Color) - it slides away (approx 1/8 of an inch) from the circuit board to let go of the cable. (To re-attach: make sure the retainer clip (Tan in Color) is up before sliding in the wire cable strip and push the retainer back in by applying pressure on both ends to seat it.) With the Keyboard Hood out of the way; remove the keyboard (3 screws only) and set the screws aside. The keyboard swings toward you and the wire connector cable for the keyboard is attached to the motherboard the same way the Hood is connected - a larger pressure retainer clip. With the keyboard out of the way; the aluminum shield must be removed. There are ten (10) screws holding this shield down, so please note which "length" screw goes where is should because putting the longer screw in the wrong place may damage something when it bottoms out. Next is removing the laptop Palm Rest (it contains the touch pad) and there are two screws easily missed near the touch pad on top; the rest of the screws are accessable when you close the lid (LCD) and flip the laptop up-side-down. Unscrew each screw one at a time and flip the laptop over to drop out each screw individually to catch them in your hand. Look for the tiny arrows to locate the screws and don't forget to lift up the battery door to get to the two (2) tiny screws, too. There should be a total of thirteen (13) of these screws and again please note the difference in lengths and where they go. Once you have all screws accounted for; set the laptop right-side-up and lift open the lid (LCD) carefully because the latch catch is hooked. (Slide the latch hook to open.) With the Lid open, you will see a thinner wire cable (white) attached to another pressure clip - it's the touch pad cable attached to the Voltage Board; release it just like you did with the keyboard cable and you can start lifting the Palm Rest up and away from the laptop case to expose the motherboard. At this point, you can see the DC Jack in the back right side corner. To get more room to manuver around, you may remove the DVD by opening the Hard Drive Bay Door and removing the two (2) tiny, short screws near the bottom of the hard drive (no need to remove the HD). The DVD slides out. Looking again on top of the motherboard, you will see a glide rail for the DVD and a metal shield covering the DC cable; remove the screws carefully and note the lengths again for proper placement. The next trick is to only move one LCD hinge out of the way, so it is important to secure the LCD in a way so that the one remaining hinge is NOT DAMAGED during this repair process. There are three (3) screws holding the hinge to the laptop case and that third screw in in the back of the laptop between the DC Jack and the modem's phone (RJ-11) jack. There is a hold-down bracket to secure the modem jack and the DC Jack; only one screw keeps it there. After getting the hold-down bracket out of the way; the DC Jack slides up and out. Remember how the DC Jack was positioned because putting it back in up-side-down makes it hard to plug the AC Adaptor in for laptop use on AC power. Use heat-shrink tubing and your insulators and avoid using electrical tape after soldering the two wires onto the new DC Jack. Also remember that the RED WIRE is soldered to the Center Post connector. Reverse the disassembly listed above to re-assemble. If you think this was tough, now you know why Technicians charge a minimum of $99 to do this job. But at least you now know that the DC Jack is NOT attached to the motherboard and the motherboard does not require complete removal just to get to the worn-out DC Jack. And YES!; DC Jack do wear out because the Adaptor plug is pulled on sooooo many times that the DC Jack take the abuse more than the plug does; and that's because there is more stability built into the plug than the DC Jack. One additional note: the Keyboard Hood connector cable is usually the first thing people damage accidently by folding the crease too many times. Wires inside this "tape" will break just like bending and twisting solid thicker wires will break. The replacement part is found on the Sony Parts Website for about $10 plus S&H. You will know you need it replaced when you can not seem to keep the laptop "ON" or the HD & Power lights fail to glow or you still can not get power to recharge the battery. The circuits for these functions run through that flat tape wire cable to the Keyboard Hood. Good Luck! (I say that because it will take up your entire evening, take up your entire dining room table, and wear thin the nerves of your spouse who will be very concerned about that table you are using to venture on!) Oh, and one more thing... Unplug the telephone as distractions should be avoided until you finish putting everything back together (or you WILL forget things).

Nov 15, 2007 | Sony PCGK37 Notebook

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