TOP 10 – Dec Defects and Solutions for Notebooks and Netbooks
TOP 10 – Dec Defects and Solutions for Notebooks and Netbooks
1. Notebook hangs over boots or resets after some time of use
Seen causes and solutions already tested:
A) Check the specifications of voltage and current power supply are in according to the needs of your notebook, if not provide a source compatible
B) Remove the battery and test again, faulty battery cause this symptom
C) Use programs Virus checkers and cleaners registration system and analyze the
Notebook
D) Use diagnostic programs to check possible errors in memory and other peripherals
E) faulty RAM and Hard Disk with Bad Blocks or very fragmented can cause This symptom, if you can test and make another RAM function tests HD
F) Check the notebook from overheating and the cooling fan inside are calling after a while of use the thermal paste on the processor can be worn and the ventilation system can be disrupted by internal dust in these cases, the notebook will be disassembled and cleaning procedures and internal exchange of thermal grease should be executed.
2. Notebook not boot and hangs on the screen before loading the System
Seen causes and solutions already tested:
A) Try to recover the Operating System, corrupted files can cause this Sinoma
B) Change the boot sequence and press the System Setup (Linux or Windows) for a CD Boot
C) Make test operation or replace the HD, the same defects that cause Sinoma
D) Check the specifications for voltage and current power supply are in according to the needs of your notebook, if not provide a source compatible
E) Remove the battery and test again, faulty battery cause this symptom
F) Use programs Virus checkers and cleaners registration system and analyze the Notebook
G) Use diagnostic programs to check possible errors in memory and other peripherals
H) faulty RAM and Hard Disk with Bad Blocks or very fragmented can cause this symptom, it can test and make another RAM function tests HD
3. Notebook LED panel lights no longer appears on screen Video
Seen causes and solutions already tested:
A) Check the specifications for voltage and current power supply are in according to the needs of your notebook, if not provide a source compatible
B) Remove the battery and test again, faulty battery cause this symptom
C) Make sure the HD Led flashes indicating that the OS is being loaded If you examine the solutions for defects of numbers 7:08
D) Defects in RAM, Processor, HD, and other peripherals can cause this symptom, test them on another Notebook or remove them one by one and then testing to see if Peripheral has a short that may be causing this symptom (NOTE: Before Peripherals removing one by one dsligue the Notebook)
E) This symptom can be caused by a general failure in the notebook CPU Motherboard, this failure can be derived from the IC BGA Solder Cold Video Controller’s Motherboard Notebook, in which case the Board shall be recovered in the Laboratory of Maintenance by Specializes in Infrared Training Station, Hot Air or other specific rework of BGA Solder
4. Notebook will not turn on and not turn anything when you press the power button
Seen causes and solutions already tested:
A) Check the label to identify the power supply if the specifications voltage and current are consistent with the needs of notebook (The label underneath Notebook also has this information), if not provide a source compatible
B) Remove the battery and test again, faulty battery cause this symptom
C) Make sure the connector input voltage VCC Notebook is right, he usually break internally and cause this symptom, in this case the notebook will be disassembled Laboratory Maintenance and your Motherboard should be repaired with exchange for this Connector
D) Defects in RAM, Processor, HD, and other peripherals can cause this symptom, test them on another Notebook or remove them one by one and then testing to see if Peripheral has some short that might be causing this symptom (NOTE: Before Peripherals removing one by one dsligue the Notebook)
E) This symptom can be caused by a general failure in the notebook Motherboard CPU, it fails can be derived from the IC BGA Solder Cold Video Controller’s Motherboard Notebook, in which case the Board shall be recovered in the Laboratory of Maintenance by Specializes in Infrared Training Station, Hot Air or other specific rework of BGA Solder
5. Laptop not charging the battery
Seen causes and solutions already tested:
A) The battery may be damaged and should be recovered or replaced
B) Defects in the Battery Charging Circuit Card CPU can be damaged, Plate must be disassembled and repaired in lab maintenance
6. Notebook reports that the battery is charged 100% more for about 20%
Seen causes and solutions already tested:
A) Battery may be under Memory Effect, it reports a false charge and Battery cause shutdowns estantâneos Notebook, Battery should be recovered Effect memory or replaced
7. Notebook league boots, plus the image on the LCD screen appears weak and / or dark
Seen causes and solutions already tested:
A) Connect an external monitor on the VGA output of your notebook, if the picture is
good indication that the Lamp CCFL Back Light from the LCD is off
B) Use a tester LCD lamp and check if it is burnt, if replace the lamp or the entire LCD
C) If the lamp lights use an LCD Inverter Tester and verify that it is generating High voltage to light the lamp, if not test with another test or LCD Inverter Flat Cable from the video signals, defects in the same cause this symptom
8. Notebook League Initializes plus the LCD screen appears with blank screen or image defects
Seen causes and solutions already tested:
A) Connect an external monitor on the VGA output of your notebook, if the picture is
good indication that the defect may be on board Electronic Screen LCD Flat cable or video signals, test with another screen LCD or other Flat cable
E) This symptom can be caused by a failure from the Cold Solder BGA IC Controller
Video Card Mother’s Notebook, in which case the Board shall be recovered in Laboratory Maintenance of Professional Specializing in Infrared Station, Air Hot or another specifically for rework on solder BGA
9. Notebook does not accept and / or failed some keys randomly
Seen causes and solutions already tested:
A) The network of contacts Keyboard can be oxidized and cause this symptom, the
Keyboard should be dismantled for repair or replacement
10. Notebook gives error reading or writing in some medias CD / DVD
Seen causes and solutions already tested:
A) dirt on the lens of the optical drive might be causing this symptom, the tray open and wipe the lens with dry cotton
B) The optical drive unit may be misaligned or misplaced the power of the laser, the
it should be replaced or disassembled for recovery
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TOP 10 – Dec Defects and Solutions for Notebooks and Netbooks
In this article we wrote about the ten most defects that occur in Computers and Netbooks and the actions most commonly used techniques to solve them, this article is indicated for users and IT professionals who already know basic procedures for disassembly and reassembly of PCs,
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