Lithium Grim PhotoFet Building Instructions Download Page 3 | Manualshive

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PhotoFet True Bypass Relay v1.0.1

3

PCB layout

Top-side

Bottom-side

Dimensions

:

24,6 mm x 34,7 mm

0.97 inch x 1.37 inch

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Summary of Contents for PhotoFet

Page 1: ...PhotoFet True Bypass Relay Building Instructions v1 0 1...

Page 2: ...7 Optional SW2 7 Lining up the LED 8 The finished switch 10 Residual noise LED popping 10 Off board wiring 11 Modes Using the switch 12 Troubleshooting 12 Schematic 13 Read this entire manual thorough...

Page 3: ...PhotoFet True Bypass Relay v1 0 1 3 PCB layout Top side Bottom side Dimensions 24 6 mm x 34 7 mm 0 97 inch x 1 37 inch...

Page 4: ...rom the relay This way the switch will turn on and off switching the DPDT relay The state of the switch is saved to memory so when you disconnect it and then reconnect it again it will return in its l...

Page 5: ...log no that s not me to learn more This PCB is made to fit the relay on both the top side as well as the bottom side If you want to make the build as compact as possible then you should place the rela...

Page 6: ...something about the photocoupler R2 determines the reaction time in relation to the brightness of the LED inside the photocoupler I tested a lot of batches of TLP222A and they all seem to work fine w...

Page 7: ...CB with the contacts facing the text SW1 Be sure that the tape does not cover the pads of SW1 3 Then use a 100nF capacitor this is actually C3 with long enough leads to solder the contacts to the SW1...

Page 8: ...by drilling the hole for your switch approx 15 mm from the bottom but measure and decide before you start drilling 2 Stick some double sided tape to the right of the hole and remove the sticker reveal...

Page 9: ...PCB and LED D3 still not yet soldered to the PCB Make sure this time that you have oriented the LED correctly 9 Make sure you screw the switch tightly to the enclosure and if all fits well you can sol...

Page 10: ...ll be some light pop due to the LED turning on and off One idea is to extend the time that the effect is turned off but that could lead to a feeling that the switch is acting sluggish Another way to s...

Page 11: ...ring S Ring Sleeve Tip Tip Sleeve To Effect To Effect IN To Effect OUT Ground Vin As you might have noticed in the diagram Green means input and Blue means output Note This board works on either 9V or...

Page 12: ...2 seconds If SW2 is on you are using a standard momentary switch and pressing SW1 will have no effect Troubleshooting All PCB s have been 100 factory e tested and out of every batch I receive I build...

Page 13: ...PhotoFet True Bypass Relay v1 0 1 13 Schematic...

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