 | Microcrontroller Project for Datsun 280zx |
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New Design In Progress Now at version 0.91 - ready to print the prototype board - 12/12/2008 
Schematics      Prototype PCBs  PCB files: zPod controller board PCB layout (postscript) zPod controller board PCB layout - mirror (postscript) zPod controller board remote board PCB layout (postscript) zPod controller board remote board PCB layout - mirror (postscript) Documents (eventually)PCB Bill of Materials - Main Board PCB Bill of Materials - Remote Board ConstructionThe remote board has been printed and many of the components have been installed. The board will be cut into three boards; the main board and two LED boards. The board should be 1/16" but I printed a 1/32" board instead due to a lack of funds and to make cutting the boards easier (I lack the proper equipment). I will coat the boards with a silicon conformal coating.
 My first attempt at printing the double-sided main board did not go well. I used an old pre-sensitized copper clad board (2-3 years old). Generally, boards should be used within one year (maybe two). I taped the two mylar prints together forming an envelope that I slid the board into. After printing, there were scratching marks along the edges of the printed board where the pre-sensitized coating had been disturbed. This coating is very sensitive (this could have been made worse due to the age). I purchased a second board, but it arrived unsealed. It never developed properly. At this point I decided to have it printed by a company in China. Below is the fully assembled board with power applied. Note that two microcontrollers are not installed. The board was designed to be powered up without them. This also makes testing convenient (using the sockets). The graphics display / keypad microcontroller is installed and is displaying some test graphics on the display. 
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