Question about Sony VAIO FRV37 Notebook

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No power after cleaning the motherboard

I recently cleaned the dust balls from the inside of my laptop. What I didn't realize was that I still had the battery pack inside the computer. Once I cleaned out the dust balls with the air duster I started it up and everything was working fine until the power cable harness accidentally popped out of it's socket because the ribbon was so short and the power panel was not in a good position. Since I didn't realize the battery pack was still in the computer I went to put the power harness back in it's socket but couldn't do it on the first try and I saw a red light come on to the power panel on the second or third try. Now the computer won't turn on, no lights, no fan, no nothing! I took out the battery pack and just plugged it in to the regular power supply also and nothing happens and tried to reset the computer too and still nothing! Is my motherboard dead or is there another problem that is easily fixable?

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  • alilind2002 Feb 24, 2008

    I tried the battery with & w/o the charger and just the charger and still nothing and nothing looks bad, black or smells burnt on the motherboard. I even thought it might be that I burnt out the power harness but I tried that in my other same laptop and it works........so there goes that theory.

  • alilind2002 Feb 26, 2008

    HA! I got it started but it needs a new power cable harness and now there is no video, just a black screen. Any suggestions here?

  • alilind2002 Feb 26, 2008

    Ha! Got it started but it needs a new power cable harness and also I have just a blank black screen, no video. Any suggestions?

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  • Sony Master
  • 13,433 Answers

Damn, you got some bad luck there. without actually haveing the laptop in my hands I can't offer much assistance.

Try to turn it on with and without the battery, then with the battery and without the charger. if noting happens after a few trys you can open it up again and look if something smells bad or looks bad (black or otherwice burned)

Of you can take the laptop to a pc repair center for analysis.

Posted on Feb 23, 2008

  • Ekse Feb 24, 2008

    Theres noting more anyone can do remotely, the problem is hardware and I recommend you take the laptop to a pc repair shop for analysis.

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Tip

Cleaning your Motherboard effectively


Motherboard cleaningWhy? Dust and especially particles of cigarette smoke can build up and corrode circuitry causing various problems such as computer lockups
Note: When inside the computer take the necessary ESD precautions and try to avoid unplugging any cables or other connections.
Procedure: Our recommendation when cleaning the motherboard from dust, dirt, or hair is to use compressed air. When using compressed air, hold it in the up-right position; otherwise, it is possible chemicals may come out of the container that could damage or corrode the Motherboard or other component within the computer. Also, ensure when using compressed air that you always blow the dust or dirt away from the motherboard, or out of the case.
Another good alternative to compressed air is to use a portable battery powered vacuum that can effectively remove the dust, dirt, and hair from the motherboard completely and prevent it from getting trapped within the case. However, do not use a standard electricity powered vacuum as it can cause a lot of static electricity that can damage the computer. When using the vacuum it is vital that you stay a couple inches away from the motherboard and all other components to help prevent contact as well as to help prevent anything from being sucked into the vacuum. Ensure that you do not remove any small components with the vacuum such as jumpers.
Tip: When cleaning the inside of the case also look at any fans and/or heat sinks. Dust, dirt, and hair collects around these components the most.

on Feb 01, 2010 | Computers & Internet

Tip

Clean up your computer


Clean your computerI have a dirty secret. I've never cleaned my computer. Sure, I've dusted my monitor, but I haven't taken off the cover or tried to reach the crumbs lurking inside my keyboard.

"Your computer could fry if you don't keep it clean," says Jonathon Millman, chief technology officer for Hooplah Interactive.
Dust clogs the vents behind your computer, which causes your CPU to heat up—and heat is the biggest cause of component failure in computers. Regular cleaning could save you costly maintenance fees down the road.
Keep your computer in tip-top shape by following Millman's guide to a spotless computer system.
PreparationYou'll need:
  • screwdriver
  • can of compressed air (available from computer dealers or office-supply stores)
  • cotton swabs (do not use a cotton ball)
  • rubbing alcohol
  • paper towels or anti-static cloths
  • water
Always turn your computer off before you begin and unplug all the cords.
Step 1: Inside the caseUsing a screwdriver, remove the side of the case that's opposite your motherboard. Touch as little as possible inside the computer, keeping fingers away from cards and cords.
Blow air around all of the components and along the bottom of the case, keeping the nozzle four inches away from the machine. Blow air into the power supply box and into the fan (from the back of the case). Lastly, blow air into the floppy disk and CD drives. Wipe the inside of the cover with a lightly moistened cloth before replacing it.
Millman recommends doing this every three months if your case sits on the floor, if you have pets that shed, or if you smoke. Otherwise, every six to eight months is fine.
Step 2: Outside the caseRun a cotton swab dipped in rubbing alcohol around all of the openings on the back of your case. Give them one swipe with the damp end of the swab and one swipe with the dry end. Do this as often as you clean the inside of your computer.
Step 3: KeyboardTurn the keyboard upside down and gently shake it. Most of the crumbs and dust will fall out. Take a can of compressed air and blow into and around the keys. Next, take a cotton swab and dip it in rubbing alcohol. It should be damp, but not wet. Run the cotton swab around the outside of the keys. Rub the tops of the keys. If you have a laptop, follow the same procedure but take extra care with your machine. Do this monthly.


Spills — If you have kids, you're worried about spills. If it happens, disconnect the keyboard immediately and flip it over. Blot the top with a paper towel, blow compressed air between the keys and leave it to air dry overnight. For laptops, liquid can easily penetrate the hard drive so turn the computer over immediately and leave it in that position until it dries.
Step 4: MouseRub the top and bottom of your mouse with a paper towel dipped in rubbing alcohol. Open the back and remove the ball. Wash the ball with water and let it air dry. To clean inside the mouse, dip a cotton swab in rubbing alcohol and rub all of the components. Scrape hard-to-remove grime with your fingernail. Finally, blow air into the opening. Replace the ball and the cover. Do this monthly.
Step 5: MonitorMoisten a paper towel or a soft, lint-free cloth with water. (You can also buy monitor cleaning products at computer-supply stores.) Don't spray liquid directly onto the screen—spray the cloth instead. Wipe the screen gently to remove dust and fingerprints. Never touch the back of the monitor.
For laptop screens, Millman suggests buying a special cleaning solution available at computer stores. Do this weekly.
Finally, make sure that everything is dry before you plug your computer back in.

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Hp pavillion dv6405us error beep code 3 1 4 3 - what does it mean? how do i fix it?


Sounds like a Phoenix BIOS Beep Code, but the 3beeps-1beep-4beeps-3beeps code doesn't come up,

http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=bph07107#N908

[ + Beep codes for Phoenix BIOS (for older PCs) ]


1) Has the inside of the computer ever been cleaned?
2) Clean the gold plated contact pins of the Ram Memory modules, ('Stick'), and reinstall.

2a) Use a pencil eraser to clean the gold plated contacts,

Remove ALL power. Remove the AC adapter (Charger) and Battery.

http://en.wikipedia.org/wiki/File:1GB_DDR2_SO-DIMM.png

If using an eraser on the end of a pencil, and not a solid eraser, refrain from letting the metal band on the pencil contact the gold plated contact pins.

Rub up, and down gently on EACH contact pin. (Both sides) Doesn't take much to clean them. They may not look shiny, and bright when you are done, but I assure you they are clean.

Handle the ram memory module by the BODY. The Body is everywhere on the ram memory module except for the gold plated contact pins.
The Body is coated with a see-through protective plastic.

Use air to remove the eraser dust before reinstalling. If you have a can of compressed air for computers available, use it. If not air pressure from your mouth will be sufficient.

http://www.youtube.com/watch?v=f7sRPDmcE9o

1a) The cooling system uses air to cool the hardware components inside your laptop.
If the cooling system is clogged with 'Gunk', and cannot adequately receive the needed air flow, the Processor and graphics chipset will overheat.

['Gunk' = Dust, dirt, hair, lint, carpet deodorizer, food crumbs, etc ]

The Processor and the graphics chipset (G.P.U.) are the two hardware components that give off the most heat.

Having the laptop dirty inside can cause a serious issue also, and especially on the Pavilion dv6000 series of Notebook PC;

The graphics chipset is mounted to the motherboard with a BGA surface mount. Through constant overheating of the graphics chipset, the solder joints (Connections) may partially melt, then re-solidify when the laptop is turned off. (Cools down)

This cause cold solder joints of the graphics chipset to motherboard, and a poor contact of graphics chipset to motherboard.

The problem with the Pavilion dv2000, dv6000, and dv9000 series of Notebook PC's, is inadequate cooling for the graphics chipset.

1) http://www.youtube.com/watch?v=JEpnqhRYGLw

2) Chip and Chipset are slang terms for I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_Circuit

3) The integrated circuit, or chipset for graphics; is the graphics chipset, or G.P.U.,

http://en.wikipedia.org/wiki/GPU

4) Video showing an average BGA (Ball Grid Array) Rework Station at work, and showing the Solder Balls, and Copper Pads of a BGA surface mount,

http://www.ersa.com/art-ir-pl-650-346-1472.html

Scroll down, click on the Red -
Take a few minutes to view the IR 650 demo video

Regards,
joecoolvette

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It may be the power supply or the memory, try cleaning the dust and mud inside.
Then remove the memory and clean it and insert it back again and check
If required just replace power supply and memory and check


If you need online technical support, you may very well contact TheBestPcDoctor. I get my all issues fixed by them and it is a reliable support according to my experience. If you want you can also get in touch with them @
www.thebestpcdoctor.com or via 877-407-9229

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