Question about Compaq Presario CQ56-115DX Laptop
Has had tea spilt on it, but worked after dried, got a new battery. has been charged, but when i try to turn it on the blue light(charged) goes to red(not charged). has been dropped, but sister in laws has also got dropped and still works just keys are messed . I don't even hear the fan turn on. Please help.
Laptop abuse, your luck it will work at all. It sound like it's done. You may have killed it
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
SOURCE: wont recognise battery
Those may have 1 or 2 different problems. Cold Solder joint on Mobo. Bad DC Power Jack. 1: if it is the Cold Solder, you can reflow the solder and be done with it. 2: if it is the DC power jack, It should be replaced. For simplicity lets call them DC(A) and DC(B) There are 3 connections to it. Gnd, DC (A), and DC (B). When the powersupply is plugged in, contacts (A) touch to send +DC to the laptop. (B) is open. When the laptop is using battery power, contacts (B) touch to send power from the battery through the system. Over a period of time (inserting and removing the DC Power Cord), the contacts become fatigued, or oxidized and the DC(B) never closes - so it won't work from DC Battery. RATE ME - if it helps
Posted on Dec 23, 2006
SOURCE: computer wont start
I ran into the same problem with my Armada E500. In my case, it was a faulty RAM module. What I would suggest is start by removing the battery, and the charger. Then continue by removing the plastic section above your keyboard (there is a single screw holding it in place on the rear end of the laptop. This plastic covers the right-hand hindge) from there, there are four plastic tabs that you slide down to remove the keyboard. This will give you clear access to the ram. Remove the module(s) and, using a soft eraser, gently clean the contacts. If your laptop has two sticks of ram, I would also recommend putting them in opposite ram slots. After that, replace the keyboard and plastic bezzel, reconnect the battery and charger, and try to boot it up again
Posted on Sep 15, 2007
Posted on Oct 15, 2007
Had the same problem with My Compaq M700 No Boot Or Post. Battery Light Flashes 8 Times, Have to Wait 24 to 48 hrs sometimes longer to get Laptop to Start. Tryed the DC Converter Board Change No Difference same Problem. Noticed When Laptop Did Start Clock Time Was always a Little Off 2-4 Hours sometimes more. So Figure CMOS Problem With Time Issues. Read About Battery Memory Transitor Voltage spike Detection Issues Corrected With Newer Bios Flash at HP Supports. So I Flashed Bios With Latest 686h. During the First Boot After Reflash Battery LED Did flash No Start, After pushing the power button again it Started. And has Every since.So Far Laptop Now Boots Everytime and CMOS Checksum Seems To Keep Time Correct In Windows. The Bios Flash Corrects a Voltage Spike Detecting Transistor In The Charging Circuit. During First Start after flash Bios will run system test on the charging system and Correct CMOS. Worked for Me Hope this Helps a Few.
Posted on May 30, 2008
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