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Touch Activated Lamp Transistor Replacement

O que você precisa

  1. Touch Activated Lamp Transistor Replacement, Transistor: passo 1, imagem 1 %32 Touch Activated Lamp Transistor Replacement, Transistor: passo 1, imagem 2 %32
    • Failure to unplug device or remove lightbulb may result in damage to device or persons. Always take care when handling electronics.

    • Always unplug device before removing the bulb.

    • Unplug and romove the lightbulb from the lamp to avoid accidents.

  2. Touch Activated Lamp Transistor Replacement: passo 2, imagem 1 %32 Touch Activated Lamp Transistor Replacement: passo 2, imagem 2 %32
    • This is a general guide for transistor repair, screw sizes may vary with lamp model.

    • Using the Phillips #00 screwdriver, remove the 5 mm screws holding the bottom plate to the bottom of the lamp.

  3. Touch Activated Lamp Transistor Replacement: passo 3, imagem 1 %32 Touch Activated Lamp Transistor Replacement: passo 3, imagem 2 %32 Touch Activated Lamp Transistor Replacement: passo 3, imagem 3 %32
    • Remove the bottom panel and locate the circuit box. The circuit box is usually a small plastic container with several wires entering it.

  4. Touch Activated Lamp Transistor Replacement: passo 4, imagem 1 %32 Touch Activated Lamp Transistor Replacement: passo 4, imagem 2 %32
    • Be careful not to damage any of the electronic components on the board while prying open the box.

    • Pry open the circuit box with your fingers or plastic opening tool and remove the circuit board.

  5. Touch Activated Lamp Transistor Replacement: passo 5, imagem 1 %32 Touch Activated Lamp Transistor Replacement: passo 5, imagem 2 %32 Touch Activated Lamp Transistor Replacement: passo 5, imagem 3 %32
    • Locate the transistor.

    • Note the location of the three pins of the transistor.

    • Soldering irons can heat up to excess of 500 degrees Fahrenheit. Take caution when soldering. If you need more information on soldering check out How to Solder and Desolder Connections

    • In this image I am using a pencil to model a soldering iron.

    • On the reverse side of the board, carefully desolder these three pins and remove the broken transistor.

    • Pay attention to the direction in which the new transistor is facing, Solder it in where the damaged one was removed. Ensure that no solder from each of the pins contact each other or any other component.

Conclusão

To reassemble your device, follow these instructions in reverse order.

Um comentário

The touch lamp I repaired had a slightly different lighting control box labelled MT-1009A (perhaps it was just an off/on). Anyway I followed the same procedure as above and soldered in a new 3 pin triac (BT134 PH600E) and all worked well. Good pictures, thanks

Dave Empson - Responder

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