LAPTOP SLOW DUE TO FAULTY HARD DISK TROUBLESHOOT AND REPAIR

LAPTOP SLOW DUE TO FAULTY HARD DISK TROUBLESHOOT AND REPAIR


Symptoms
Noticeably slow all of a sudden.

Troubleshooting
Run hard disk diagnostic software.

Solution
Replace faulty hard disk, reload from recovery disks.

Precautions
Unplug from mains, and make sure battery is removed during disassembly and assembly.  Back-up all personal data.

Tools required
Philips screwdriver, container to keep screws etc, and well lit and comfortable antistatic workspace.

LAPTOP WHITE SCREEN REPAIR HP G6

LAPTOP WHITE SCREEN REPAIR HP G6


Symptoms
Screen only shows white and a few running colours during operation.

Troubleshooting 
Check for overheating.  Check cable from motherboard to LED.

Solution 
Reseat cable from motherboard to LED panel.

Precautions
Unplug from mains, and make sure battery is removed during disassembly and assembly.  When removing the screen bezel do this with care as the plastic is very thin, and can snap
easily.

Tools required
Philips screwdriver, plastic prying tool, container to keep screws etc, well lit and comfortable antistatic workspace.

LAPTOP BLACK SCREEN REFLOW GPU HP DV9000

BLACK SCREEN REFLOW GPU HP DV9000

Symptoms
Black screen or running colours.

Troubleshooting
Check cable from motherboard to LCD panel is seated correctly.  Check for overheating.

Solution
If everything with the above is in normal state, we are left with the graphics chip.
Reflow first and if necessary will need full BGA reballing.

Precautions
Unplug from mains and remove battery during disassembly and assembly.   Take care of high temperatures during reflow process.  Please wear correct protective gear.

Tools required
Philips screwdriver, plastic prying tool, container to keep screws etc, small new paintbrush, thermal paste, heat gun (reflow), aluminum foil, well lit and comfortable antistatic workspace.

LAPTOP OVERHEATING

LAPTOP OVERHEATING



Symptoms
Switching off.

Troubleshooting 
Check for overheating, check voltages on charger, check battery.

Solution
This case turned out to be overheating.  Remove motherboard, remove CPU, GPU, heat sinks.  Clean out and replace thermal paste.  Check cooling fan operation.

Precautions
Unplug from mains and remove battery during disassembly and assembly.  Attention to CPU heat sink is mounted using even pressure.  Store hard drive in safe secured place as it is shock sensitive.

Tools required
Philips screwdriver, plastic prying tool, container to keep screws etc, small new paintbrush, thermal paste, multimeter, well lit and comfortable antistatic workspace.

LAPTOP CHARGER SOCKET REPAIR

LAPTOP CHARGER SOCKET REPAIR


Symptoms
Power jack broken, laptop not charging.

Troubleshooting
Test output voltages from charger with multimeter.

Solution
Remove motherboard and replace power jack.

Precautions
Unplug from mains and remove battery during disassembly and assembly.  Store hard drive in a safe secured place as it is shock sensitive.

Tools required
Torque screwdriver, Philips screwdriver, plastic prying tool, container to keep screws etc, soldering iron, solder, multimeter, well lit and comfortable antistatic workspace.

EASY FIX FOR NEW SAMSUNG TV SWITCHING ON AND OFF POWER CYCLING

EASY FIX FOR NEW SAMSUNG TV SWITCHING ON AND OFF POWER CYCLING



Symptoms 
Randomly switching on and off.

Troubleshooting
Check capacitors on power supply board.

Solution 
If above in normal operation, disconnect the small board behind the buttons panel.

Precautions
Unplug from mains, bigger capacitors can hold a charge even when mains unplugged.

Tools required 
Philips screwdriver, container to keep screws etc, well lit and comfortable antistatic workspace.

HTC SMARTPHONE EAR PIECE SPEAKER REPLACEMENT

HTC SMARTPHONE EAR PIECE SPEAKER REPLACEMENT

Symptoms
No sound from ear piece speaker.

Troubleshooting
Check ear piece speaker with multimeter.

Solution 
Replace ear piece speaker.

Precautions 
Take care not to lose small screws.

Tools required 
Philips screwdriver, torque screwdriver, plastic prying tool, container to keep screws etc, multimeter, well lit and comfortable antistatic workspace.

IPHONE 3GS SCREEN REPLACEMENT

IPHONE 3GS SCREEN REPLACEMENT

Symptoms
Broken iphone 3gs screen.

Troubleshooting
Make sure phone is operating normally before replacing.

Solution
Replace with new iphone 3gs screen.

Precautions
Take care with broken glass.  Don’t overheat with heat gun or you will warp the plastic frame.  Take care not to lose small screws.

Tools required 
Philips screwdriver, suction cup, container to keep screws etc, heat gun, well lit and comfortable antistatic workspace.

HP PRINTER PAPER JAM

HP PRINTER PAPER JAM TROUBLESHOOTING AND REPAIR

Symptoms
Paper jam during print job.

Troubleshooting
Open inspection cover and search for blockage.

Solution
Remove blockage.

Precautions
Switch off printer and unplug from mains.  Try and remove the blockage in the direction of paper feed.  Take care of plastic parts that are easy to break.

Tools required
Flash light, tweezers, well lit and comfortable antistatic workspace.

EXTERNAL USB HARD DISK FAULT AND REPAIR

EXTERNAL USB HARD DISK FAULT AND REPAIR 

Symptoms
USB external hard disk not working.

Troubleshooting
Try external hard disk in more than one USB port, and with another computer.  Try a different USB cable.

Solution
Remove disk from case and connect directly to the computer.  Run disk diagnostics.

Precautions
Hard drives are shock sensitive so take care.  Always remove from the mains before
disassembly.  Make sure computer is completely turned off, before connecting the hard drive to the motherboard.

Tools required
Philips screwdriver, container to keep screws etc, and well lit and comfortable antistatic workspace.

HOW TO REMOVE A TROJAN VIRUS INFECTION FROM COMPUTER

HOW TO REMOVE A TROJAN VIRUS INFECTION FROM COMPUTER

Symptoms
Computer blocked by Trojan virus.

Troubleshooting
From safe mode check which programmes are starting automatically.  Trace and delete anything suspicious.

Solution
Once the suspicious start up programme is deleted, restart computer in normal mode.  Install anti-malwarebytes and scan.

Precautions
During diagnostics, disconnect the computer from the internet.

Tools required
USB stick with anti malwarebytes setup.

LAPTOP CHARGER ADAPTER REPAIR

LAPTOP CHARGER ADAPTER REPAIR

Symptoms
Laptop not charging.

Troubleshooting
Check output voltages from the charger.

Solution
Replace, repair charger cable.

Precautions
Unplug from mains at all times.

Tools required
Soldering iron, solder, heat sink tubing, heat gun, multimeter, carpet knife, well lit and comfortable antistatic workspace.

SCREENS

EASY FIX FOR NEW SAMSUNG TV SWITCHING ON AND OFF POWER CYCLING

Symptoms
Randomly switching on and off.

Troubleshooting
Check capacitors on power supply board.

Solution
If above in normal operation, disconnect the small board behind the buttons panel.

Precautions
Unplug from mains, bigger capacitors can hold a charge even when mains unplugged.

Tools required
Philips screwdriver, container to keep screws etc, well lit and comfortable antistatic workspace.

COMPUTER POWER SUPPLY

COMPUTER POWER SUPPLY PSU FAULT TROUBLESHOOTING & REPAIR

Symptoms
PC not powering on.

Troubleshooting
Remove PSU and check by bridging green and black wire, to confirm PSU normal operation.

Solution
Replace bad capacitors, or if beyond repair replace PSU.

Precautions
PSU must be removed from mains at all times.  The larger capacitors can withhold a charge even when unplugged from the mains.  Only replace capacitors with their equivalent, and take care to get their polarity the right way round.

Tools required
Philips screwdriver, container to keep screws etc, soldering iron, solder , well lit and comfortable antistatic workspace.

CUSTOM BUILD PC

CUSTOM BUILD INTEL I7 PC

PC Custom build, Intel i7 2600 CPU, Gigabyte Z8 Motherboard, 16GB Corsair DDR Ram, 1TB Western Digital Black Caviar, 60GB SSD OCZ Agility 3, Intel Smart Response Technology SRT, Sony DVD RW, Coolermaster Case, Coolermaster 750W PSU.

LAPTOPS

LAPTOPS

ACER BACKLIGHT INVERTER

Symptoms
Laptop powers on normally with no backlight.  Images may be seen by shining a flashlight at the screen.

Troubleshooting
Process of elimination starting with LCD panel and then inverter.  In this case inverter proved to be faulty.

Solution
Replace inverter board.

Precautions
Unplug from the mains and remove battery, because high voltage output from inverter.

Tools required
Philips screwdriver, plastic prying tool, container to keep screws etc, well lit and comfortable antistatic workspace.

PCs

PCs

BUILD YOUR OWN GAMING PC TO RUN GAMES AT 60FPS I7 3770 Z77

Custom gaming PC, Xilence Black Hornet case, Gigabyte Z77 Motherboard, i7 3770 Ivy Bridge CPU, 8 Gig Corsair DDR3 ram, Corsair 850W Power Supply, Western Digital 1TB Hard Disk, OCZ 64GB Solid State Drive, Nvidia Geforce, GTX 670 2GB Graphics Card.

GAMING

GAMING

PS3 SLIM NOT READING DISK LASER REPLACEMENT

Symptoms
Not reading any disks.

Troubleshooting
Make sure disk itself is not damaged.  Check that laser is not dirty.

Solution
Replace laser.

Precautions
Must be unplugged from mains during disassembly and assembly.  Make sure you order the correct part number, as the PS3 slim uses more than one model of laser.  Within the optical drive, do not interfere with the eject mechanisms, before re-assembly; make sure the centre CD magnet is seated correctly.

Tools required
Philips screwdriver, flat screwdriver, container to keep screws etc, well lit and comfortable antistatic workspace.