이재호박사 노트북 수리 thosiba satellite m50 usb port not working

Dr. Lee's notebook problem

1. LCD PANNEL BROKEN

14inch wide xga TFT LCD (Clear Super View Type)

2. USB PORT NOT RECOGNIZED

Broken USB Ports
Laptop USB ports seem to get damaged more frequently than those of their desktop counterparts, perhaps as laptops tend to get moved around while USB plugs and devices like Flash Drives and Wireless Dongles are plugged in, wires get tripped over and plugs get bumped.
Sockets can also be damaged by using excessive force when inserting USB plugs and dongles.

If a socket is damaged, one or more of the four metal electrical contacts inside may be bent, and/or the plastic (or porcelain) insulator may be broken.
The other frequent scenario is where the solder points that hold the USB ports casing get broken, causing the whole port assembly to become loose. In either case, this can cause an electrical short and damage the motherboard. If you suspect USB port problems, disconnect power completely from the laptop by unplugging the AC adaptor and removing the battery.

Repairing Laptop USB Ports

You may have several options if one of your ports is damaged.

• It's usually possible to remove the insulator and the metal contacts so you have one unusable USB port and if done properly, you eliminate the possibility of a short which could damage your motherboard. (Remove all power from the laptop before trying this)
• If you need more ports you can use a PCMCIA (or Cardbus) - USB card
• If an addon USB card is not an option (e.g. you are already using an addon card for a different purpose and you have no space or you don't want something sticking out of the side of the laptop) we may be able to replace your USB port/s for you.

As with broken DC sockets, the manufacturer of the laptop will not usually replace just the broken USB port, they will change the entire motherboard if you send it to them for repair.
More likely than not, the manufacturer will consider damage to DC sockets and USB ports to be the fault of the consumer and as such this sort of repair will not be covered by warranty.

USB Sockets differ from laptop to laptop in shape, size and configuration. We can source most replacements but we may need to open your laptop to determine what part it needs before we can be sure it's one we can replace.