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Dell studio 1735 direct media lights flash nothing else

Power up. Buttons on Media Control panel light up in sequence right to left then to right. Volume up and down and WIFI lights stay on. Volume mute flashes constantly. WIFI On/Off selector works. Nothing else happens and No display at any time through laptop screen or external monitor. Fan does not move and DVD drive will not accept a disc, indicating power may not be reaching the rest of the unit. Power adapter works fine. Battery was allowed to drain then recharge overnight. Hard drive tested good. Memory chips tested good. DVD drive untested. No change when hard drive, memory and DVD drive removed. Motherboard issue or Media Control front panel issue?

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  • Ron Asselstine Jan 09, 2013

    All great suggestions here. All were tried previously as this is not my first encounter with a political laptop (all promise & no work). Response notes: All components were remmoved, inspected and reseated. These are all original components and cleaner than most laptops I work on. I am comfortable working on laptops except when it comes to soldering. Yes, I did try an external monitor. I do have experience with the C500 series as well as the DV sereies (including the copper shim solutions). I am still leaning towards motherboard went south for the winter. I do not have any means of tracing the power trail to see where it fails; wouldn't know where to begin and how to test. Thanks for the suggestions. I will continue to test as long as I can.

  • Ron Asselstine Jan 09, 2013

    Additional observations: The battery has retained its charge over the last couple days. IWhen I plug the power adapter in, the little blue light next to the power connector does light up. I was able to manually load a disc into the DVD drive by use of the release button (why didn't they drill a hole in the side case so you can use this button without removing the unit?). but pressing the Eject button on the media panel did nothing. Pressing the Launch Dell MediaDirect recycles the right to left to right button display as stated earlier but nothing else happens. The left hinge cover has a crack in it, probably due to "dropping" it into an unpadded carrying case. or lowering the case to the ground in a less-than-gentle manner. Can't tell if this affects the WiFi network locator button since I can not get the system to start beyond the media lights display. I force-fed a Linux DVD into the DVD drive. Of course, nothing happened there. Nearing the time to bite the bullet on this one.



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  • 2,385 Answers

It shows power section issue of motherboard

Posted on Jan 08, 2013

  • Ron Asselstine Jan 09, 2013

    That is what I am leaning towards. I was trying to see if one of the ribbon cables might be cutting off the power, but they all appear in good shape.



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SOURCE: dell latitude d820. press power button. no

This may be a really stupid question, but you could have overlooked it... Are you sure the power cable is attached to the laptop correctly? It seems like it's just short of power.

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SOURCE: C500 Laptop won't come on power button just flashes

Have you tried attaching an external monitor when the LCD screen is disconnected from the motherboard? this connector is located under the keyboard strip – a piece of plastic just above the keyboard.
If it works, this way, then the video cable isn’t seated properly in the connector on the back of the screen. Plugging the video cable back in should fix the problem.
I don’t know how comfortable you are with taking apart laptops but I think that this information could be useful for you.

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SOURCE: HP Pavillion dv6700 - black screen

Do the following without the battery inserted.

Let the computer sit with no battery for 24 hours. Do not put the battery in at all. Try using your original memory stick ONLY, with no hard drive and see if it will POST. If it does, insert the hard drive and try again. Could be the new memory...

Another thing you can try is reseating the processor. Turn the ZIF screw, take the processor out (WATCH THE PINS!!) and put back in GENTLY. Leave the memory in the computer, hard drive removed, try to power on.

These models have been known for bad motherboards. Contact HP and arrange to send it in. If you do enough digging on HPs website, you'll find the service advisory.

-Dell & HP Certified Technician

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SOURCE: My Dell Studio 1535 is dead! Well almost - the

Here are some things to try:

Most likely, bad motherboard

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SOURCE: I am an owner of

my daughters hp 6735s had the fan running all the time issue, having got fed up with this I decided to try to fix it. I downloaded the service manual from the hp website and dismanteld the laptop to remove the motherboard. The fan defuser had some dust but not much, so I removed the heatsink that covers the cpu and gpu. I noticed the cpu did have thermal compound that was in contact with the heatsink, however the gpu had compound on the chip but nothing touching the heatsink. I cleaned the heatsink, cpu and gpu with degreaser, then applied new silver themal compound from maplin. I made sure i also applied a thin coating to the heatsink. I refitted the heatsink and reassembled the laptop. I powered on the laptop and instantly noticed the laptop fan running at half speed which it should do, I installed a program from a dvd and left the laptop running and so far so good. If we had left this any longer I suspect the solder under the gpu would have become molten and then we could have had another issue which maybe we could not have fixed. I hope this helps you if you have similar issues.

Posted on Jul 07, 2012

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