SHOWALL
Figure 2 - The main circuit board will supply a wealth of smaller semiconductors
Figure 2 - The main circuit board will supply a wealth of smaller semiconductors

Identify the boards that you intend to remove for unsoldering or storage and then remove the mounting screws or fastening hardware. Newer appliance manufacturers try to avoid the use of screws and will probably only have plastic clips or plugs holding all of the internals into the cabinet. Also, multiple boards will be interconnected using ribbon cables and plastic connectors, often soldered directly from one board to the other. If the connectors actually have plugs on the circuit board, then you may want to unsolder them for later use. But, if the interconnected wiring is soldered directly from one board to the other, just clip them with cutters or scissors.





Figure 3 - DVD players contain an infrared or visible red laser
Figure 3 - DVD players contain an infrared or visible red laser

Depending on the type and age of your DVD player, the laser will be either a low power infrared unit (players only), or a very high power visible red unit (DVD burner). The infrared laser module could be used for the Laser Spy Device shown on our website project if you can figure out a way to drive it properly. The high power visible red laser can be used for all kinds of experimentation, but caution must be exercised as the high power laser is many more times more powerful than any laser pointer.

The laser module and included hardware will also yield several optical filters, lenses and some very sensitive light detectors that can also be salvaged for some optical based project. These parts are usually cemented together into a machined aluminum block, and a little prying with a small screwdriver will usually break the seal, freeing the part.

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