Repair USB optical mouse

Less than half a year has a netbook, optical mouse has been damaged. Damage that occurs, the red indicator light is on but the mouse cursor was quiet, the pointer does not move following the mouse movements.

I did some trouble shooting, and I found that the USB cable connector at the edge was problem.

In the cable mouse consists of four small-sized wires, which is two 5 VDC power supply cable (plus and minus) and two data cables. Because of frequent moves, one of the existing data cable is broken. To fix this, prepare the tools:

• AVO meter or Multi Tester
• The knife cutter
• Solder and tin
• Isolation

Following steps:

1. Cut the cable at least 10 cm from the edge of the USB socket
2. Use AVO meter or multi tester to mark the color and position of the cable (identification), as shown below
   
   
   
3. Open the USB connector cover, with a vertical cut using a cutter knife, and try cut in the middle so that the result looks neat
4. Remove the solder cable 10 cm that had been cut at the USB socket terminal
5. Solder mouse cable to the USB socket terminal. Note the color and position of cable, must be precise not to reverse
6. Isolate the cover. Examples of the results as shown below
   
   

Reference: Elektronikabersama

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Repairing damage to the Sony Ericsson k800i phone charger

Below, I give tips on repairing damage to the Sony Ericsson k800i phone charger I've ever experienced.

The damage is emerging information: Battery Charging Problem, Stop Charging.

Analysis of cases:
After review, it turns out there is a defective component 470uF/10V elco. Physically elco is seen piled on top of or term pregnancy. This damage causes the flow of electricity to charge the cell phone becomes unstable.


Typically, elco 470uF/10V difficult to obtain in the market electronics stores, as a replacement could be using elco 330uF/16V, until 1000uF/16V. But note the physical height elco, shall be entered on the lid (cashing) charger.

Prepare the following tools and materials:

1. AVO meter
2. Solder
3. Fat solder (stannol)
4. Tin solder
5. Vacuum tin (attractors)
6. Special screwdriver phones
7. Pliers
8. Elco 330uF/16V
   

Working steps:

• Check the charger output voltage using the AVO meter, showed good results when the value of 5, 6 Volt.
• Open the lid (cashing) charger and heat the solder.
• Remove the elco 470uF/10V, replace with elco 330uF/16V.

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