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Please read these tips before you start assembling MIDI-IR
MIDI-IR Build Tips
- Look at this picture on my flickr site which gives a good picture of where everything goes.
- Solder the two 1% 499 ohm resistors in the spots marked 500 (close enough!). These are the blueish ones marked with yellow-white-white-black-brown stripes.
- Solder the one 5% 270 ohm resistor. This is the brownish one marked with red-purple-brown-gold stripes.
- Solder the five 5% 220 ohm resistors. These are the brownish ones marked with red-red-brown-gold stripes.
- Solder the two diodes - the redish one goes near the MIDI-IN jack, the black one goes in the spot marked 1N5817. Make sure the stripe on the diode matches the stripe on the the board.
- Solder the 3 IC sockets - match the notch in the socket with the notch on the board so you remember which way the IC's go.
- Solder the 2 red LEDs - the short leg should match up with the line marked on the board and go in the square hole (very important!)
- Solder the milky white LED with three legs - the flat side of the LED should match up with the line marked on the board.
- Solder the voltage regulator with three legs (looks like a transistor) in the spot marked 78L05 - you may have to bend the legs a little.
- Solder the blue electrolytic capacitor in the spot marked 47 uF. The black stripe marked negative should go opposite of the hole marked positive.
- Solder the two white headers (one has 4 pins, the other has 6 pins).
- Solder the three switches (direction does not matter).
- Solder the two green potentiometers with black knobs/shafts.
- Solder the push button with 4 legs. Put the green cap on the button.
- Stick the ICs in the sockets in the correct orientation
The rest of the components go on the back of the board!
- Solder the 2 infrared LED's. These are the squareish ones. One side of the LED has a small bump which is the lens - make sure these point out, away from the board.
- Solder the 2 MIDI jacks (DIN connectors) - try to get them sit flat and level against the board so it looks nice.
- Solder the battery holder, using the machine screws and locknuts to secure it. The locknuts go on the top of the board.
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