- 1 15 mm length of 1/8" expanded ID heat shrink - 1 5mm length of 1/16" expanded ID ## Computer Configuration - JEOL microscope software runs on Windows 10 32 bit - Open Beam Interface software runs on iMac - Windows 10 PC and JEOL software is controlled on iMac over remote desktop protocol ![[Neoscope OBI Installation 2024-04-12 18.44.36.png]] %%[[Neoscope OBI Installation 2024-04-12 18.44.36.excalidraw|🖋 Edit in Excalidraw]]%% ## Instructions ### Tap scan signals and install relay board - Identify which cables to cut - X: Pin 1 and 2 of CN15 - Y: Pin 3 and 4 of CN15 - Label the cables to keep track of X and Y - ![[Pasted image 20240403141641.jpg]] - Strip back outer insulation 15 mm - ![[Pasted image 20240403143946.jpg]] - Be careful not to cut the inner ground shield. Doing this by hand with flush cutters, rather that with a stripping tool, is best. - ![[Pasted image 20240403144251.jpg]] - ![[Pasted image 20240403144339.jpg]] - Solder cables to the board - We need to convert a coaxial cable to two wires. We will do this by separating the ground shield conductors and twisting them together into a "wire" - The cables will naturally want to lay one way. Depending on the orientation of the signal and ground pads on the board, it may be better to separate the ground shield at either the top or bottom of the cable - Here, the ground shield is split at the top and the ground wires are collected at the bottom of the cable. - ![[Pasted image 20240403144817.jpg]] - ![[Pasted image 20240403145653.jpg]] - ![[Pasted image 20240403145737.jpg]] - Cut heat shrink to size - One 15mm length of 1/8" heat shrink - ![[Pasted image 20240403145805.jpg]] - One 5mm length of 1/16" heat shrink - ![[Pasted image 20240403145955.jpg]] - Slide the big heat shrink on first, and slide it down the cable and away for now. It's very important that you put it on during this step, and not later. - ![[Pasted image 20240403150058.jpg]] - Strip back the inner white insulation to a distance of 7mm past the outer while insulation. The 18-20 gauge strip setting worked well. - ![[Pasted image 20240403150358.jpg]] - ![[Pasted image 20240403150515.jpg]] - ![[Pasted image 20240403150633.jpg]] - Slide the 5mm length 1/16" diameter piece of heat shrink over the ground braid - ![[Pasted image 20240403150906.jpg]] - Shrink the small heat shrink first - ![[Pasted image 20240403151456.jpg]] - Now slide the large heat shrink into place, so that end of the heat shrink is halfway along the length of the white inner insulation. - ![[Pasted image 20240403151738.jpg]] - Shrink the outer heat shrink. Be gentle with applying heat for heat shrink and soldering - the inner insulation melts quite easily. - ![[Pasted image 20240403151856.jpg]] - Insert the two wires into their respective holes in the relay board. The ground shield goes to the hole marked with a ground symbol. Note: Any loose conductors that stick out of the hole could potentially cause a short. - ![[Pasted image 20240403151923.jpg]] - Solder the wires to the pads from the back side of the board - ![[Pasted image 20240403152229.jpg]] ### Power #### 5V - Taking power from CN21 +5VA - ![[Pasted image 20240404124736.jpg]] - Cut wire 40mm back from connector - ![[Pasted image 20240404125150.jpg]] - Strip back insulation 20mm on all wires - ![[Pasted image 20240404125408.jpg]] - Cut two 40mm lengths of 1/8" diameter heat shrink - ![[Pasted image 20240404125451.jpg]] - Cut a ? length of silicon wire - Slide the heat shrink onto the silicon wire. Then insert the long ends of the wires (not the ones attached to the connector) into the heat shrink from the opposite direction. Slide the heat shrink out of the way for now. Make sure the red and black wires stay twisted. - ![[Pasted image 20240404130515.jpg]] - Do a lineman's splice - ![[Pasted image 20240404131058.jpg]] - ![[Pasted image 20240404131123.jpg]] - ![[Pasted image 20240404131149.jpg]] - ![[Pasted image 20240404131215.jpg]] - ![[Pasted image 20240404131318.jpg]] - Repeat for the other wire: - ![[Pasted image 20240404131748.jpg]] - Wait until the solder joints cool, and then slide the heat shrink over them. The black and red silicone wires should be free now. Make sure the black and red wires from the microscope stay twisted together! #### 15V - Remove a gray/brown pin from CN35 and CN32 - ![[Pasted image 20240404143415.jpg]] - ![[Pasted image 20240404143441.jpg]] - ![[Pasted image 20240404143457.jpg]] - Strip insulation off from the midsection of the wire, starting at 35 mm from the pin and ending at 45. Take care not to damage inner conductors - ![[Pasted image 20240404143651.jpg]] - ![[Pasted image 20240404143849.jpg]] - ![[Pasted image 20240404144216.jpg]] - ![[Pasted image 20240404144243.jpg]] - Strip 20mm from the end of a silicone wire - ![[Pasted image 20240404144449.jpg]] - ![[Pasted image 20240404144521.jpg]] - Wrapped spliced wire around exposed conductors and solder together. A small amount of no-clean flux goes a long way towards wetting all of the conductors - ![[Pasted image 20240404145139.jpg]] - Cover splice with 1-2 pieces of heat shrink (4mm ID heat shrink slides over the pin from the connector) - ![[Pasted image 20240404151255.jpg]] - ![[Pasted image 20240404151304.jpg]] - Wrap the spliced wires back into the cable - before - ![[Pasted image 20240404151330.jpg]] - after - ![[Pasted image 20240404151342.jpg]] - Push the spliced pin back into the connector - ![[Pasted image 20240404151448.jpg]] - ![[Pasted image 20240404151607.jpg]] - Make sure the pin is fully seated - ![[Pasted image 20240404151629.jpg]] ### Electron Detector - Identify the Electron Detector Signal In cable on the IFIS board (CN14) - - CN14 is circled, bottom right (ish) corner. - ![[Pasted image 20240423154624.jpg]] - Remove IFIS board to access backside. - All connectors going to this board must be removed first - The screws that hold the FireWire port to the frame must also be removed - ![[Pasted image 20240423155550.jpg]] - Strip micro coax cable as done for scan cables - Solder micro coax to pins of CN14 as shown - ![[Pasted image 20240423155119.jpg]] - Route micro coax as shown so that it will tuck up inside of frame when board is install, but not be allowed go so far as to hit the fan - ![[Pasted image 20240423155320.jpg]]