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sMs Audio Electronics Appendage Manual

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Building the sMs Audio Electronics
Appendage
Touch Ribbon Controller
Issue: 1.1
Copyright © 2009, sMs Audio Electronics
This document may be freely reproduced and distributed in its un-altered form.

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Summary of Contents for sMs Audio Electronics Appendage

  • Page 1 Building the sMs Audio Electronics Appendage Touch Ribbon Controller Issue: 1.1 Copyright © 2009, sMs Audio Electronics This document may be freely reproduced and distributed in its un-altered form.

  • Page 2: Table Of Contents

    Chapter 7: Building the Appendage Board…..……………………………………76 Chapter 8: Appendage Calibration Procedure…………………..………..………152 Appendices Appendix A: Appendage Board Bill of Material…..........A1 Appendix B: Front Panel and Wiring Bill of Material…..…………………….B1 Appendix C: Ribbon Assembly Bill of Material………………………………C1 Appendix D: Appendage PCB Schematic……………….…………………….D1 Appendix E: Appendage Panel Schematic……………………………………E1...

  • Page 3: Chapter 1: Planning Your Appendage

    1. Planning Your Appendage The main thing to keep in mind is that the Appendage is designed to do a lot of stuff, so it is not as uncomplicated as a “normal” ribbon controller build. By the same measure, the build is not nearly as complicated as, say, the Apollo command module or an electron microscope.
  • Page 4 For now, the main thing to keep in mind is that the Appendage experience is really made up of two elements – the electrical guts and the ribbon that controls the electrical guts.
  • Page 5 Spectrasymbol™ also manufactures the HotPot® line of membrane potentiometers, which also work with the Appendage circuit. These ribbons are specified for a much larger number of actuations (>10 million as compared to SoftPot® range of >1 million), and have a decidedly better surface feel. However, it takes a bit more force to actuate the HotPot®...
  • Page 6 If you would prefer to have an attractive ribbon assembly built and ready to go, you can order an assembly from RibbonControllers.com. Not only does RibbonControllers.com know what is required of the assembly to interface with the Appendage, they can also provide additional functionality such as a ribbon pressure output voltage to add to the...
  • Page 7 Mixed Voltage. Output Voltage Levels The Appendage fixed output levels were designed to output a voltage in the range of 0 to 10V. The Mixed Output and Bend voltages are designed to output a range in a maximum range of -10V to 0V to +10V, because the Bend Voltage is an element of both signals, and is bipolar in nature.
  • Page 8 Appendage. In any event, never bundle the power supply lines with the signal lines of the Appendage – keep them separate.

  • Page 9: Chapter 2: Designing The Appendage Panel

    It’s Your Appendage – Do What You Wanna Do, within Reason While designing your Appendage panel, be aware there are number of elements that will need to be wired a certain way to make them do what they are intended to do when you tell them to do it.
  • Page 10 Table 2-1 Pots Label Function Position Legend Initial Controls the amount of Inital Anti-Clockwise: No Initial Voltage Amount Voltage present in the mixed Clockwise: Max Initial Voltage output Slide Controls the amount of Slide Anti-Clockwise: No Slide Voltage Amount Voltage present in the mixed Clockwise: Max Slide Voltage output...
  • Page 11 Any Color LED Total Number of LEDs: 2 The Appendage generates a number of different control voltages in addition to a gate signal and a trigger signal. Some of the control voltages the Appendage produces have no associated level controls. These voltages are sometimes referred to as “fixed”...
  • Page 12 • The Output Section The Mix Section At the heart of the Appendage is the mix section. This function is used to mix the generated control voltages, as well as external voltages, into a composite signal called, appropriately enough, the Mixed Output. When designing your Appendage panel, bear in mind it may be more intuitive to the operator to have the controls for the mix section grouped together.
  • Page 13 The control section is comprised of panel elements that are used to set the operating conditions of the Appendage. It consists not only of the switches which set particular operating modes, but also the connectors used to accept signals used to control the Appendage itself.
  • Page 14 The Output Section The output section consists of the connectors used to output the various Appendage signals as well as the gate and trigger LED indicators. Table 2-7 Controls and indicators associated with the Output Section Panel Element Function Mixed Output Connector Outputs the Mixed Output signal from the mix section.
  • Page 15 Figure 2-1: Orientation of Pots as Depicted in the Wiring Diagrams Figure 2-1 is provided as a guide to laying out the potentiometers on the Appendage panel legend. The orientation of the legends depicts the action each pot will have if the...
  • Page 16 Figure 2-2: Orientation of Switches as Depicted in the Wiring Diagrams Figure 2-2 is provided as a guide to laying out the switches on the Appendage panel legend. The orientation of the legends depicts the action each switch will have if the...

  • Page 17: Chapter 3: Mounting Parts To The Front Panel

    Orienting, Testing and Mounting the Parts Thankfully, the Appendage panel doesn’t have a lot of parts you can just plain install backwards. In other words, there’s really only one way your pots will install and only one way most of the switches will install that are actually physically going to affect how the wires will need to connect to them in order to correspond to the front panel legend.
  • Page 18 which, and, to do that, it will be good to have either an ohmmeter or a continuity tester on hand. A continuity tester that beeps when you have continuity would be just a spiffy thing to use for this endeavor. ----- 0.000 Closed Position...
  • Page 19 not have a “middle” position – only up and down. If your switch lever does not move through three positions, then you are indeed actually holding (hopefully) a DPDT ON- ON switch. Go ahead and make sure it’s working by using your DMM. Left Right Left...
  • Page 20 ----- 0.00 Figure 3-3: SPDT ON-ON Switch in “Up” Position Move the lead from the left side center terminal to the right side center terminals. The reading should remain the same on the right side upper and lower terminals. 0.00 ----- Figure 3-4: SPDT ON-ON Switch in “Down”...
  • Page 21 ----- 0.00 Figure 3-5: DPDT ON-OFF-ON in the “Up” Position Now, move the switch lever to the center position. Now the center terminal on the right side will not connect to the upper or lower terminal on the right side, nor will the center terminal on the left side connect to the upper or lower terminal on the left side, as can be seen in Figure 3-6.
  • Page 22 So far you’ve tested four switches: you’ve tested one SPST ON-OFF switch, two DPDT ON-ON switches, and one DPDT ON-OFF-ON switch. The final remaining switch should be a SPDT ON-OFF-ON switch. The testing for it is nearly identical to the process of testing the DPDT ON-OFF-ON switch, only this switch has one section, so there are only three terminals on it.
  • Page 23 Figure 3-9: An LED Test If your LED doesn’t light up in either position using this method, then you quite likely have a very bad LED. So, we’ve covered switches and LEDs. The last things we should probably check and become intimately familiar with are the jacks used for the input and output connectors.
  • Page 24 Mono 3.5 mm and 1/4” plugs have two sections – the “tip” and “sleeve” connections. The “tip” provides the signal, and the “sleeve” provides the ground connection that mates the ground of your “send” device and your “receive” device. These two sections are separated by a non-conducting ring on the plug.
  • Page 25 TRS plug. Generally a TRS plug is meant to carry a stereo signal, or is used to carry a balanced signal. In the case of the Appendage, the TRS plug /jack carries a voltage on the Ring conductor, connects to the wiper of the ribbon with the Tip connector, and...
  • Page 26 To verify which lug of the jack is which, grab a balanced TRS cable (you probably have one around, because you will need this cable in order to use your Appendage after it’s built) and plug one end of it into the TRS jack.
  • Page 27 that you’ll not accidentally wire anything other than the “tip” connection to this lug when it comes time to wire up the panel. Ring 0.00 Sleeve Figure 3-15: Finding the Ring Lug of the TRS Jack Next, move the lead from the tip of the cable to the ring of the cable. Repeat the same process to find the ring lug of the TRS jack.
  • Page 28 Ring Sleeve 0.00 Figure 3-16: Finding the Sleeve Lug of the TRS Jack. Once again, repeat the process to find the “sleeve” lug of the TRS jack. Move the lead from the ring of the cable to the sleeve, and use the continuity tester to find the jack lug that has continuity with the sleeve.
  • Page 29 (or the right value in the wrong hole, for that matter): all of the pots used on the Appendage panel are 100K linear panel mount type pots. So, go ahead, have at it. You can use table 3-1 to make sure you get all of the pots installed.
  • Page 30 Table 3-1: Panel Mount Potentiometer List Label Reference Type Designator Glide Amount VR101 100K Linear Panel Mount Pot Mod Level VR102 100K Linear Panel Mount Pot Slide Amount VR103 100K Linear Panel Mount Pot Initial Amount VR104 100K Linear Panel Mount Pot Coarse Offset VR105 100K Linear Panel Mount Pot...
  • Page 31 the ground connections. If you are using banana jacks, obviously you don’t have to worry about that, because there is only one connection on a banana jack to worry about. Use Table 3-3 to make sure you get all of the connectors you wish to install. If you have chosen not to install some of the inverting output connectors, just mark through them and proceed along your merry way.
  • Page 32 Once all of your panel components are mounted, you’ll finally be able to see what your Appendage will look like from the business end of things. Before you can claim to be done with the panel, it will need to be strap wired, and then, ultimately, wired up to the Appendage, so don’t make any exorbitant claims about it already working to your friends...

  • Page 33: Chapter 4: Strap Wiring The Front Panel

    4. Strap Wiring The Front Panel The front panel will be wired to the Appendage PCB through a number of wires and connectors. There are some signals that are “shared” between the panel components. Rather than run a wire to and from the PCB for every signal connection, it’s more efficient to wire these common connections between the parts that share them, and then run a single wire back to the PCB.
  • Page 34 Back View (Wiring Side) Input SW104 Input Mode SW103 Ribbon Mode SW105 Trigger Mode SW101 Gate Mode SW102 External Stepped Ribbon Current Re-Trigger Gated Hyper Ribbon Universal Sample Single Voltage Current (Up Position) = Switch Closed Figure 4-1: Strap Wiring the Switches Switch Strap Connections We’ll begin with the switch strap connections.
  • Page 35 5. Connect a wire between the upper right terminal of Switch 103, the Input Mode Switch, and the lower left terminal of Switch 104, the Input Switch. Solder the connection on the lower left terminal of Switch 104, the Input Switch. Do not solder the connection on the upper right terminal of Switch 103, the Input Mode Switch –...
  • Page 36 The strap wire from the left lug to the center tap lug of the pot is a precaution that allows the Appendage to continue to function should the pot malfunction. If the tap of the pot should become disconnected from the internal resistive strip of the pot, there is still a path for the signal to follow.
  • Page 37 A bit of explanation may serve to help decide how you want to wire the common ground connections. The Appendage PCB divides the ground plane into two paths: the analog ground and the digital ground. These two paths are both at the ground potential, but they...
  • Page 38 (such as gate and trigger signals) or that require more current than other signals (such as the LED signals) do not “dump” noise on the entire ground system. In other words, it’s a precaution taken to keep the Appendage signal voltages as “quiet” as possible through elimination of crosstalk.
  • Page 39 Figure 4-5: Strap Wiring the Pot Common Ground Pot Ground Strap Wiring There are seven pots on the Appendage front panel that require a ground reference connection. That means that there are three pots that do not have a common ground connected to them.
  • Page 40 The “continuous signal” jack group either provides the voltage control outputs generated by the Appendage, or accepts signal sources to be processed by the Appendage. Obviously, if you use banana jacks, you’ve got a pass on this section – you don’t have a ground connection to solder to your jacks.
  • Page 41 Strap Wiring the Control Signal Jack Ground Connections The “control signal” jack group either provides the gate/trigger control outputs generated by the Appendage, or accepts an external gate signal to be processed by the Appendage. Once again, if you use banana jacks, don’t worry about these connections.
  • Page 42 (Figure 4-5). Finally, make sure you have one place left that you can connect the ground connection from the Appendage PCB. All of the single ground connections should, at this point, be connected together. To ensure that everything is connected together, connect one lead of an ohmmeter or a...
  • Page 43 Table 4-1: Single Analog Ground Strap Connection List Component Gate LED Cathode Trigger Cathode Ribbon Mode Switch, Lower Terminal Trigger Mode Switch, Middle Terminal Input Mode Switch, Left Middle Terminal Initial Amount Pot, Right Lug Slide Amount Pot, Right Lug Bend Amount Pot, Right Lug TFS Amount Pot, Right Lug Mod Level Pot, Right Lug...
  • Page 44 Figure 4-9: Analog Ground Strap Wiring...
  • Page 45 Dual Ground Connection to Analog and Digital Ground If you plan on wiring the panel components up to the single ground system (analog ground) back up from this section and return to the “Single Ground Connection to Analog Ground” section preceding this section. Digital Ground Connections 1.
  • Page 46 This defeats the purpose, but is not necessarily much to worry about, as evidenced in the Appendage prototype phase of design.
  • Page 47 Figure 4-10: Digital and Analog Ground Strap Wiring...
  • Page 48 Congratulations, the panel components should now be mounted, and the strap wiring is complete. The next step is the construction of wire harness cables to connect to the panel.

  • Page 49: Chapter 5: Building The Cables

    Again, it cannot be stressed enough that using this system provides a number of advantages: (1) Final Assembly of the Appendage is made much easier. If one is to hardwire the connections, the wires must be soldered to both the front panel and the PCB assembly.
  • Page 50 There are slots on Key Tab the back of the housing Crimp Terminal Housing as viewed from the "top" or the side the wires are inserted Figure 5-1: Housing and Crimp Terminal – A Graphic Anatomy On the opposite side of the housing is a slot for each “hole” or terminal in the housing. These slots run along the bottom.
  • Page 51 Crimp or fold the tabs of the crimp terminal over here. If using solder, solder here. Be sure not to put on too much solder so the crimp terminal can fit into the housing. Don't bend the loop or the little anchor tab that juts out on the backside of the crimp terminal.
  • Page 52 A little care at these early stages can save a lot of headache at the final assembly and test stage of building your Appendage. The tab on the crimp terminal must be inserted into the housing so that the tab will poke out of the slots on the back of the housing - this helps to hold the pin in place once it has been inserted.
  • Page 53 View From Backside Insert the crimp terminal into the housing so that a soft "click" is felt. Figure 5-4: Inserting Crimp Terminals Into the Housing Remember that “loop” on the terminal must not be crushed or misshapen – it is intended to compress down over the wire, making a good connection, and also provides a certain amount of tension that helps hold the terminal in the housing.
  • Page 54 A long, long time ago, in a chapter, far, far away (Chapter 1 of this document specifically), it was mentioned that the Appendage is very accommodating to your power supply predilection. Rather than force you to trudge back to Chapter 1, that particular...
  • Page 55 All of the power connectors feed common points on the PCB, so one type of connector can be used as the power input of the Appendage, and another style of connector can be used to supply the power and ground signals to the Appendage panel For example, if the Blacet™/PAiA™/MOTM™...
  • Page 56 Table 5-1: Panel Cables Plug/Cable Number Pin Number/Panel Connections Pin1 - Ribbon In Jack, J117, Ring Lug Pin2 - Ribbon In Jack, J117, Tip Lug Pin3 - Ribbon In Jack, J1117, Sleeve Lug Pin4 - Ribbon Mode Switch, SW 105, Top Lug Pin5 - Input Mode Switch, SW 103, Upper Right Lug Pin1 - Inverted Slide Output, J113, Tip Lug Pin2 - Slide Output, J106, Tip Lug...
  • Page 57 And, of course, the connector to be used is up to you to decide, based upon which connector you decide to use to supply power to the Appendage. It should go without saying the connector that is supplying power to the Appendage PCB cannot be used to supply these signals to the panel –...
  • Page 58 Plug/Cable Number Pin Number/Panel Connections Pin 1 - -V to Coarse Offset Pot, VR105, Right Lug Doepfer™ J2 Pin 2 - No Connection Pin 3 - Analog Ground Panel Connection Pin 4 - No Connection Pin 5 - No Connection or (Digital Ground Optional) Pin 6 - No Connection Pin 7 - No Connection Pin 8 - No Connection...

  • Page 59: Chapter 6: Installing The Panel/Pcb Connection Wiring

    The Final Panel Assembly Step After you have finished the steps of this chapter of the Appendage Build Instruction, your panel, and a good chunk of the actual work of building the Appendage assembly will be completed. For Those Not Using the Plugs and Headers...
  • Page 60 Appendage works, should you be curious and/or a glutton for punishment. At this point, all of your cables will be housings that have an amount of wire attached to them. Hopefully you left enough length in the wires to “reach” from between the panel to where the boards will be situated.
  • Page 61 SW105 SW103 J117 Ribbon Mode Input Mode Ribbon SPST ON-OFF DPDT ON-ON Ring Sleeve Pin 1: Rib Top Pin 2: Rib Tap Pin 3: Rib Bot Pin 4: Mode SW Pin 5: SW3A-1 1 2 3 4 5 Figure 6-1: P6/J6 Connections...
  • Page 62 Figure 6-2: P7/J7 Connections...
  • Page 63 Figure 6-3: P8/J8 Connections...
  • Page 64 D102 D101 J111 J110 Trigger LED Gate LED Trigger Output Gate Output Anode Anode Sleeve Sleeve Cathode Cathode Pin 1: Trig Out Pin 2: Trig LED Pin 3: Gate Out Pin 4: Gate LED 1 2 3 4 Figure 6-4: P9/J9 Connections...
  • Page 65 SW102 SW101 SW104 SW103 J104 Gate Mode Trigger Mode Input Input Mode External Gate DPDT ON- SPDT ON- DPDT ON-ON DPDT ON-ON Input OFF-ON OFF-ON Sleeve VR101 Glide 100K Linear Back Pin 1: SW4A-P Pin 2: Glide Pot Pin 3: Glide Tap Pin 4: SW2A-2...
  • Page 66 Back Optional Digital Ground Panel Ground (Analog Ground) Figure 6-6: P1/J1 Panel Connections The P1/J1 panel connection can be used if J1, the User Power connector, is not used as the connection between the Appendage PCB and the power supply.
  • Page 67 9 10 11 12 13 14 15 16 Figure 6-7: P2/J2 Panel Connections The P2/J3 panel connection can be used if J2, the Doepfer™ power connector, is not used as the connection between the Appendage PCB and the power supply.
  • Page 68 100K Linear Back Optional Digital Ground Panel Ground (Analog Ground) Figure 6-8: P3/J3 Panel Connections The P3/J3 panel connection can be used if J3, the Blacet™/PAiA™/MOTM™ connector, is not used as the connection between the Appendage PCB and the power supply.
  • Page 69 VR105 Coarse Offset 100K Linear Back Panel Ground Figure 6-9: P4/J4 Panel Connections The P4/J4 panel connection can be used if J4, the Synthesizers.com™ connector, is not used as the connection between the Appendage PCB and the power supply.
  • Page 70 The TB1 panel connection can be used if TB1, is not used as the connection between the Appendage PCB and the power supply. In the case of using TB1 as the connection, the wires on the panel can be soldered in place before connecting the panel to the PCB; TB1 is a terminal block, which allows the stripped and tinned ends of the wires to be inserted into the block and held in place with screws integral to the terminal block.
  • Page 71 One may wish to attach the ribbon to a keyboard, or interface to the Appendage PCB built up as a module or built into a stand-alone chassis, or, perhaps, build the Appendage as a completely stand-alone controller with the ribbon integrated with the chassis that contains the Appendage PCB and panel elements.
  • Page 72 Appendage, but there are a few reports that indicate that (perhaps) some models of the ribbon do have a couple of the pins switched around.
  • Page 73 Ohmmeter Very Little Change to Pressure Pressure Applied To Any Point On Ribbon Figure 7-3: Testing the “Outside” Pins of the SoftPot® Connect the positive and negative leads of the ohmmeter to the two outside pins of the SoftPot® (pins 1 and 3 according to Figure 7-3). The ohmmeter should indicate some value of resistance –...
  • Page 74 Connecting the Ribbon During the prototype phase of the Appendage, the testers came to the conclusion that it is a very bad idea to actually solder the connections onto the pins of the SoftPot® ribbon. You may do an admirable job of controlling the heat, but we are of the opinion, at least for this application, that any heat has the very good chance of distorting the response of the ribbon to the point of where it becomes unusable in this application.
  • Page 75 Snip Here 20 Pin SIP P201 Figure 7-4: Creating P201 from a 20 Pin SIP The plug that will connect to the ribbon carries the reference designator P201. Finding a 3 Pin SIP type of connector is likely impossible – usually the SIP connectors are sold in strips of twenty or so.
  • Page 76 Wiring P201 to a TRS Jack The standard configuration in this document for interfacing a ribbon to the Appendage is via a three conductor cable, using TRS jacks. This is certainly not the only way of doing things – other connectors can be used, but this example will help understand the connections when using any type of connector.
  • Page 77 small vise or some of those “Helping Hands” alligator clips you’ve seen while going through your electronic geek catalogs. If you don’t have any of those, get some. They’re quite helpful little hands indeed. Solder the lugs of J201 to P201 exactly as depicted in Figure 7-5, using braided wire. Make sure the wires you use will be long enough to reach the ribbon from where J201 will be mounted.

  • Page 78: Chapter 7: Building The Appendage Board

    8. Building the Appendage Board The Appendage PCB The first thing you may notice about the Appendage PCB is that it’s big. Well, it’s big in a Synth DIY way of thinking anyway – it would qualify as being rather normal sized if you were building, say, a computer or an Apollo control module.
  • Page 79 Figure 8-1: High Resolution Illustration of Appendage PCB Silkscreen Legend...
  • Page 80 It is not pleasant, so try to avoid that from happening if at all possible. You’ll need those fingers to play the Appendage later. Anyway, after the connector is held in place by this modest bit of solder you’ve just dabbed on, solder the other pins in, after which make sure this original pin has enough solder as well.
  • Page 81 Doepfer™ standard. Shrouded Ribbon Cable Header: There is only one Shrouded Ribbon Cable Header, which is J5. This connector is provided for the Auxiliary output of the Appendage PCB, and carries various signals to be used for future functional expansion.
  • Page 82 Molex(R) Type Power Connector Blacet(TM)/MOTM(TM) Type Figure 8-3: Larger Molex® Type Connector, J3 Figure 8-3 provides a view of the difference between this larger Molex® type connector. Terminal Block Connector: There are pads provided for a terminal block connector, TB1. A terminal block connector allows one to insert stripped wires and use the included screws to clamp down on the connection.
  • Page 83 Installing the Small Molex® type connectors We’ll begin with installing the smaller Molex® connectors. J1, J4, and J6 through J10 all are this type of header connector. Silk Screen Legend Header Figure 8-4: Orientation of Molex® Header Connectors Refer to Figure 8-5: There is a pin 1 to each header, and that is indicated by a square pad on the PCB.
  • Page 84 If the silk-screening is a bit much, and you find yourself hunting for just exactly where to put the connectors, use Figure 8-5 to navigate the PCB and locate exactly where each Molex® Header goes. Use Table 8-1 as a checklist to ensure that all of the connectors are in place.
  • Page 85 Figure 8-7: PCB Locations of Remaining Header Connectors The silk screen legend of the PCB indicates the location and orientation of the headers. You can also use Figure 8-7 to help locate the positions. Be sure to follow the orientation of the Molex® connector J3. The ribbon connector, J5 should be installed with the notch in the housing facing to the outside of the PCB (reference Figure 8-2).
  • Page 86 IC, usually by a notch at the top of the socket. Be sure to install them pointing in the right direction. Pin 1 of the socket will be a square pad. The Appendage PCB is designed with all of the ICs and connectors pointing in the same direction, where pin 1 is pointed to the “top”...
  • Page 87 Figure 8-8: 16 Pin IC Socket Locations 14 Pin Sockets There are thirteen 14 sockets to install: X2 through X6 and X13 through X20. Use Table 8-4 to ensure all of the 14 pin sockets are installed. Figure 8-9 can be used to help locate the socket locations.
  • Page 88 Figure 8-9: 14 Pin IC Socket Locations...
  • Page 89 8 Pin Sockets The remaining sockets in your socket arts pile should now all be eight pin sockets. There should be six of them. The six 8 pin sockets are X7 through X12. Now is the time to install them. Table 8-5: 8 Pin IC Sockets 14 Pin IC Sockets Quantity of Pins...
  • Page 90 Figure 8-10: 8 Pin IC Socket Locations...
  • Page 91 Before plowing into the resistors, we should first select and install the resistors that will determine whether your Appendage is to put out 5V peak trigger and gate signals, or 10V peak trigger and gate signals. The value of resistors R12, R13, R113 and R114 will make this determination.
  • Page 92 Figure 8-11: Gate/Trigger Level Resistor Locations Once you have determined the value of gate and trigger resistors you wish to use, go ahead and install them. Solder them in place, and record the selected values in Table 8-6 for future reference. Table 8-6: Gate and Trigger Level Resistors Gate and Trigger Level Resistors Reference Designator...
  • Page 93 100K Resistors There are several values of resistor used on the Appendage PCB. By far the most numerous value is 100K – there are a total of 61 100K resistors. We’ll install all of them in a series of steps so that it is easier to ensure that all of them have been installed in the correct locations.
  • Page 94 Figure 8-12: Locations for R24-R38...
  • Page 95 R40-R44, R47-R51, R53-R60: 18 Total 100K Resistors Count out 18 100K resistors and install them in the locations marked for R40 through R44, R47 through R51, and R53 through R60. Use Figure 8-13 to help locate the pads where these resistors are installed. Install and solder the resistors, using Table 8-8 to record that each and every resistor from this group has been installed.
  • Page 96 Figure 8-13: Locations for R40-R44, R47-R51, R53-R60...
  • Page 97 R62-R64, R66-R68, R70-R85: 22 Total 100K Resistors Count out 22 100K resistors and install them in the locations marked for R62 through R64, R66 through R68, and R70 through R85. Use Figure 8-14 to help locate the pads where these resistors are installed. Install and solder the resistors, using Table 8-9 to record that each and every resistor from this group has been installed.
  • Page 98 Figure 8-14: Locations for R62-R64, R66-R68, R70-R85...
  • Page 99 R87-R89, R103-R105: 6 Total 100K Resistors This step will finish up all of the 100K resistors. Count out 6 100K resistors and install them in the locations marked for R87 through R89, and R103 through R105. Use Figure 8-15 to help locate the pads where these resistors are installed. Install and solder the resistors, using Table 8-10 to record that each and every resistor from this group has been installed.
  • Page 100 Figure 8-15: Locations for R87-R89, R103-R105...
  • Page 101 100 Ohm Resistors (100R Resistors): 11 Total Resistors Find your 100 Ohm (100R) resistors. You should have 11 of them. These resistors have a reference designator series running from R1 through R11, so install them in the locations marked for R1 through 11. Install and solder the resistors, using Table 8-11 to record that each and every resistor from this group has been installed.
  • Page 102 Figure 8-16: Locations for R1-R11...
  • Page 103 1.8K (1K8) Resistors: 5 Total Resistors You should have five 1.8K (1K8) resistors ready for installation. These resistors have a reference designator series running from R14 through R18, so install them in the locations marked for R14 through 18. Install and solder the resistors, using Table 8-12 to record that each and every resistor from this group has been installed.
  • Page 104 Figure 8-17: Locations for R14-R18 and R20-R23...
  • Page 105 120K Resistors: 3 Total Resistors You should have three 120K resistors ready for installation. These resistors use non- sequential reference designators R61, R65, and R69. Install and solder the resistors, using Table 8-14 to record that each and every resistor from this group has been installed. Figure 8-18 can be used to help locate the pads for the resistors –...
  • Page 106 Figure 8-18: Locations for R61, R65, R69, R90-R94, R95, and R96...
  • Page 107 22K Resistors: 3 Total Resistors You should have three 22K resistors ready for installation. These resistors use reference designators R97 through R99. Install and solder the resistors, using Table 8-17 to record that each and every resistor from this group has been installed. Figure 8-19 can be used to help locate the pads for the resistors –...
  • Page 108 Figure 8-19: Locations for R97-94, R100, R101, R116-R118, R126, and R102...
  • Page 109 2.2M (2M2) Resistors: 4 Total Resistors You should have four 2.2M (2M2) resistors ready for installation. These resistors use reference designators R106 through R109. Install and solder the resistors, using Table 8- 20 to record that each and every resistor from this group has been installed. Figure 8-20 can be used to help locate the pads for the resistors –...
  • Page 110 Figure 8-20: Locations for R106-R109, R110, R111, and R112...
  • Page 111 4.7K (4K7) Resistors: 3 Total Resistors You should have three 4.7K (4K7) resistors ready for installation. These resistors use reference designators R19, R119, and R120. Install and solder the resistors, using Table 8-23 to record that each and every resistor from this group has been installed. Figure 8- 21 can be used to help locate the pads for the resistors –...
  • Page 112 Figure 8-21: Locations for R19, R119, R120, R121-R125, and R130...
  • Page 113 470K Resistor: 1 Total Resistor You should have one 470K resistor ready for installation. This resistor uses reference designator R127. Install and solder the resistor, using Table 8-25 to record that this resistor has been installed. Figure 8-22 can be used to help locate the pads for the resistor –...
  • Page 114 Figure 8-22: Locations for R127, R128, R129, and R131...
  • Page 115 0.1 µF (100 nF) Metal Poly Caps There are thirty five 0.1 µF (100 nF) capacitors on the Appendage. We’ll divide these up into two steps, to make it easier to ensure all of the caps are installed where they should be installed.
  • Page 116 Figure 8-23: Locations for C3-C20...
  • Page 117 C21-C37: 17 Total 0.1 µF (100 nF) Metal Poly Caps Now install capacitors C21 through C37. This is a total of 17 capacitors, so count out seventeen 0.1 µF (100 nF) capacitors and set them aside for this step. Use Figure 8-24 to help locate the pads where these capacitors are installed.
  • Page 118 Figure 8-24: Locations for C21-C27...
  • Page 119 Figure 8-25: Locations for C39-C41 10 nF Ceramic Radial Capacitors: 3 Total Capacitors You should have three 10 nF capacitors. These capacitors use reference designators C39 through C40. Install and solder the capacitors, using Table 8-30 to record that each and every capacitor from this group has been installed.
  • Page 120 Figure 8-26: Locations for C39-C41 1 µF Polyfilm Box Capacitors: 3 Total Capacitors You should have three 1 µF capacitors polyfilm box capacitors. These capacitors use reference designators C42 through C44. Install and solder the capacitors, using Table 8- 31 to record that each and every capacitor from this group has been installed. Figure 8- 26 can be used to help locate the pads for the capacitors.
  • Page 121 Figure 8-27: Locations for C45-C49 220 pF Ceramic Radial Capacitors: 5 Total Capacitors You should have five 220 pF ceramic capacitors. These capacitors use reference designators C45 through C49. Install and solder the capacitors, using Table 8-32 to record that each and every capacitor from this group has been installed. Figure 8-27 can be used to help locate the pads for the capacitors.
  • Page 122 Figure 8-28: Locations for C50-C52 2 nF Polypropylene Capacitors: 3 Total Capacitors You should have three 2 nF polypropylene capacitors. These capacitors use reference designators C50 through C52. Install and solder the capacitors, using Table 8-33 to record that each capacitor has been installed. Figure 8-28 can be used to help locate the pads for the capacitors.
  • Page 123 Figure 8-29: Locations for C57-C60 47 nF Ceramic Capacitors: 4 Total Capacitors You should have four 47 nF ceramic capacitors. These capacitors use reference designators C57 through C60. Install and solder the capacitors, using Table 8-34 to record that each and every capacitor from this group has been installed. Figure 8-29 can be used to help locate the pads for the capacitors.
  • Page 124 Figure 8-30: Locations for C55, C56 4.7 nF (4n7) Ceramic Capacitors: 2 Total Capacitors You should have two 4.7 nF (4n7) ceramic capacitors. These capacitors use reference designators C55 and C56. Install and solder the capacitors, using Table 8-35 to record that each capacitor has been installed.
  • Page 125 Figure 8-31: Locations for C38, C53 and C54 Single Capacitor Values 1 nF, 33 nF and 330 nF You should have one each of the following capacitors: • 1 nF ceramic capacitor – Install in the C38 location. • 33 nF metal film box capacitor – Install in the C53 location. •...
  • Page 126 Figure 8-32: Locations for C1, C2 47 µF 35V Electrolytic Capacitors: 2 Total Capacitors You should have two 47 µF electrolytic capacitors. These capacitors use reference designators C1 and C2. Be sure to observe the proper polarity when installing these electrolytic caps.
  • Page 127 This completes the installation of all of the capacitors used on the Appendage PCB. Next up will be the installation of all the diodes used by the Appendage, which promises to be a rollicking good time Installing the Diodes Know Thy Diodes...
  • Page 128 Figure 8-35: Locations for D17 through D20 (BAT85 Schottky Diodes) BAT85 Schottky Diodes: 4 Total Diodes Especially after the preceding harangue, you should have four BAT85 diodes sorted out and ready to install. These diodes use reference designators D17 through D20. Be sure to observe the proper polarity when installing these diodes.
  • Page 129 1N457 Silcon Diode: 1 Total Diodes You should have one 1N457 diode in your dwindling parts pile. Go ahead and install this diode. The 1N457 uses reference designator D16. Be sure to observe the proper polarity when installing this diode. The silk-screening indicates the cathode of the diode, as well as specifying the correct pad by its shape (square as opposed to round).
  • Page 130 Figure 8-36: Locations for D1-D15 (1N4148) and D16 (1N457)
  • Page 131 NPN. The same applies to the FET used on the Appendage. To be totally sure, use 2N3904s and an MPF102 if at all possible. U22 and U23, in all cases, must be a 78L10 and LM334Z, respectfully.
  • Page 132 Ensure that you have the MPF-102 in hand, and install it in the Q6 position on the left portion of the Appendage PCB. You can use Figure 8-38 to help locate the position (it is marked in green). Be sure to install and solder the package with the flat side aligned with the flat portion of the silk-screened legend, and record it in Table 8-41.
  • Page 133 Table 8-42. The transistors are all located on the lower right quadrant of the Appendage PCB. You can use Figure 8-39 to help locate the pads.
  • Page 134 Appendage operation once everything is put together and ready. The Appendage PCB can accommodate trim pots that have leads that are in a single row, and it can accommodate trim pots that have the “triangular” arrangement of leads.
  • Page 135 You should have one 200K multi-turn trim pot. This should be installed in the pads reserved for VR11 on the upper right portion of the Appendage PCB. You can use Figure 8-41 to help locate the position (it is marked in red). Be sure to install and solder this 200K trim pot so that the adjustment screw of the trim pot corresponds to the adjustment screw depicted on the silk screen legend.
  • Page 136 100K Trim Pots: 10 Total You should have ten multi-turn 100K trim pots. These trim pots use reference designators VR1 through VR10. You can use Figure 8-42 to help locate the position of each trim pot. Be sure to install and solder these 100K trim pots so that the adjustment screw of each trim pot corresponds to the adjustment screw depicted on the corresponding silk screen legend.
  • Page 137 Figure 8-42: Locations of 100K Trim Pots VR1 through VR10...
  • Page 138 Installing Test Points Test Points The Appendage PCB contains a total of nine test points that are used during calibration and provide signal points for trouble-shooting. These test points are handy for clipping multi-meter and oscilloscope leads to, leaving the hands free to adjust trim pots or control settings on test equipment.
  • Page 139 Figure 8-43: Locations of Test Points TP1 through TP9...
  • Page 140 Appendage will be configured. If you do not, you can hold off on this decision, but rest assured your Appendage will not be ready for operation until at least one of these two jumpers is installed.
  • Page 141 JMP2 Jumper 2 (JMP2) is used to configure the Appendage to accommodate either a dual ground power supply line or a single ground power supply line. Ground Analog Ground JMP2 Power Supply Digital Ground Appendage Single Ground Power Supply: JMP2 Installed...
  • Page 142 The depicted power supply has only one ground connection. That single connection is connected to the ground input of the Appendage. If JMP2 is not in place, the Digital Ground path of the Appendage PCB is physically disconnected from this input, and things will not work.
  • Page 143 Refer to Figure 8-46 to locate the JMP1 pads. The pads are silkscreened with letters “D” and “A”. • If power supply connection to the Appendage PCB has only one ground line feeding the PCB, install JMP2 (a bus wire soldered to the “D” and “A” pads).
  • Page 144 With each IC you install, be sure to check for the common screw-ups that so seem to plague so many IC-Socket Installation parties: • Make sure the IC is pointing in the right direction. On the Appendage PCB, the notch at the top of the IC is always pointing towards the top of the board, and pin 1 is always the upper left pin (as indicated by the square pad that’s...
  • Page 145 16 pin socket, unless the installer is incapable of seeing that there is more socket there than IC. So, we’ll start inserting ICs according to IC type. We’ll begin with the most numerous of ICs on the Appendage, the TL074. Inserting TL074s Into the IC Sockets: 8 Total You should have eight 14 pin TL074 ICs.
  • Page 146 Figure 8-47: TL074 IC Locations...
  • Page 147 Inserting (2) CD40106, (1) CD4017 and (1) LM358 ICs: 4 Total Now we’re going to mix things up a little bit. The idea is that, because we are installing two 14 pin ICs (the CD40106 ICs), one 16 pin IC (the CD4017) and one 8 pin IC (the LM358), the chances of getting the wrong IC in the wrong socket are reduced, because no type of IC has the same number of pins.
  • Page 148 Figure 8-48: CD40106, CD4017 and LM358 IC Locations...
  • Page 149 Inserting (1) CD4053, (1) TS556, and (1) CD4013: 3 Total We’re going to mix things up a little bit again – this time we will install three ICs: one 16 pin IC (the CD4053 IC) , one 14 pin TS556 IC and one 14 pin CD4053 IC. So, gather together: •...
  • Page 150 Figure 8-49: CD4053, TS556 and CD4013 IC Locations...
  • Page 151 Inserting (1) CD4081 and (5) LF398: 6 Total And, for the final IC installation step, we’ll install one 14 pin CD4081 IC and five 8 Pin LF398 ICs. So, grab the remaining ICs: • One 14 Pin CD4081 ICs (U4) •...
  • Page 152 Figure 8-50: CD4081 and LF398 IC Locations...
  • Page 153 Figure 8-51: Socketed IC Final Check...

  • Page 154: Chapter 8: Appendage Calibration Procedure

    9. Appendage Calibration Procedure Calibration Overview Once the Appendage is fully assembled, and power is applied, nothing is likely going to work as expected until the calibration procedure is finished, so don’t worry if you’re not getting the response you expected when you first power things up. Certain parameters will need to be calibrated before you can start wailing away on your Appendage.
  • Page 155 The pressure comparator generates the internal timing for the Appendage Sample and Hold circuitry as well as the timing for the gate and trigger output signals. This calibration ensures that the Appendage reacts predictably along the entire length of the ribbon in both the current and voltage modes of operation.
  • Page 156 Switch (SW105). When the Appendage is in the Voltage Mode of operation, the ribbon is supplied with a fixed, regulated voltage signal. When the Appendage is in the Current Mode of operation, the ribbon is supplied with a current generated by a constant current source.
  • Page 157 3. Connect the negative lead of the DVM to TP9. 4. Connect the positive lead of the DVM to the end of R34 indicated in Figure 9-1. 5. Record the voltage indication of the DVM. ____________VDC 6. Set the Ribbon Mode Switch (SW105) to the Current Mode position. 7.
  • Page 158 Figure 9-2: Comparator Reference Adjustment Calibration Points Procedure Required equipment: Digital Voltmeter (DVM) or Oscilloscope 1. Make sure the Appendage is powered on and the ribbon is connected to the Appendage. 2. Set the Ribbon Mode Switch (SW105) to the Voltage Mode position.
  • Page 159 6A. If the Gate LED is illuminated and the DVM reads a positive voltage close to the positive rail voltage of the Appendage power supply, adjust VR1 slowly clockwise until the precise point the Gate LED goes off, and the DVM voltage drops close to zero volts.
  • Page 160 There are two calibration points to this range adjustment. One trim (VR2, VSH Zero) sets the amount of voltage produced by the Appendage when pressure is applied to the lowest portion of the ribbon to 0V. The other trim, (VR3, VSH Level), sets the amount of voltage produced by the Appendage when pressure is applied to the highest portion of the ribbon to 10V.
  • Page 161 Figure 9-3: Voltage Mode Ribbon Range Calibration Points...
  • Page 162 Procedure Required equipment: Digital Voltmeter (DVM) Calibration Alignment Tool (Trim Pot Tweaker) Adjust VR2 For Specified Voltage VR12 Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R117 here. Figure 9-4: Initial Zero Voltage Calibration 1. Place the Ribbon Mode Switch (SW105) to the “Voltage” position. 2.
  • Page 163 Adjust VR3 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R28 here. Figure 9-5: Initial Range Voltage Calibration 6. Connect the positive lead of the DMM to the end of R28 indicated in Figure 9-5 and leave the negative lead of the DMM attached to TP9.
  • Page 164 There are two calibration points to this range adjustment. One trim (VR6, VTFS Zero) sets the amount of voltage produced by the Appendage when no pressure is applied to the ribbon to 0V. The other trim, (VR7, VTFS Level), sets the amount of voltage produced by the Appendage when the widest possible “spread”...
  • Page 165 Figure 9-6: Voltage Mode TFS Calibration Points...
  • Page 166 Procedure Required equipment: Digital Voltmeter (DVM) Calibration Alignment Tool (Trim Pot Tweaker) Adjust VR6 For Specified Attach Positive Lead of DMM Voltage to R118 here. Attach Negative Lead of DMM to TP9. Figure 9-7: Initial Voltage TFS Zero Voltage Calibration 1.
  • Page 167 Adjust VR7 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R33 here. Figure 9-8: Initial Voltage TFS Range Calibration 6. Connect the positive lead of the DMM to the end of R33 indicated in Figure 9-8 and leave the negative lead of the DMM attached to TP9.
  • Page 168 10A. If a second person is there to apply the pressure while you can adjust the trim pot, adjust VR7 until the DMM displays 10V 10B. If there is no one to help you out, release the pressure, and adjust VR7 up (clockwise) if the reading was greater than 10V, or down (anti-clockwise) if the reading was less than 10V (no adjustment is required if the voltage was 10V).
  • Page 169 There are two calibration points to this range adjustment. One trim (VR4, ISH Zero) sets the amount of voltage generated by the Appendage when pressure is applied to the lowest portion of the ribbon to 0V. The other trim, (VR5, ISH Level), sets the amount of voltage produced by the Appendage when pressure is applied to the highest portion of the ribbon to 10V.
  • Page 170 Figure 9-9: Current Mode Ribbon Range Calibration Points...
  • Page 171 Procedure Required equipment: Digital Voltmeter (DVM) Calibration Alignment Tool (Trim Pot Tweaker) Adjust VR4 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R116 here. Figure 9-10: Initial Zero Voltage Calibration 1. Place the Ribbon Mode Switch (SW105) to the “Current” position. 2.
  • Page 172 Adjust VR5 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R26 here. Figure 9-11: Initial Range Voltage Calibration 6. Connect the positive lead of the DMM to the end of R26 indicated in Figure XXX-3 and leave the negative lead of the DMM attached to TP9.
  • Page 173 There are two calibration points to this range adjustment. One trim (VR9, ITFS Zero) sets the amount of voltage produced by the Appendage when no pressure is applied to the ribbon to 0V. The other trim, (VR8, ITFS Level), sets the amount of voltage produced by the Appendage when the widest possible “spread”...
  • Page 174 Figure 9-12: Current Mode TFS Calibration Points...
  • Page 175 Procedure Required equipment: Digital Voltmeter (DVM) Calibration Alignment Tool (Trim Pot Tweaker) Adjust VR9 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R35 here. Figure 9-13: Initial Current TFS Zero Voltage Calibration 1.
  • Page 176 Adjust VR8 For Specified Voltage Attach Negative Lead of DMM to TP9. Attach Positive Lead of DMM to R89 here. Figure 9-14: Initial Current TFS Range Calibration 6. Connect the positive lead of the DMM to the end of R89 indicated in Figure 9-14 and leave the negative lead of the DMM attached to TP9.
  • Page 177 10B. If there is no one to help you out, release the pressure, and adjust VR8 up (clockwise) if the reading was greater than 10V, or down (anti-clockwise) if the reading was less than 10V (no adjustment is required if the voltage was 10V). After you’ve adjusted the trim, apply the two points of pressure again to see how close you got to 10V.
  • Page 178 Stepped mode, the external input signal is internally sent down a different path within the Appendage. The purpose of this path, and the Stepped function, is to derive AutoGlide control and trigger signals derived from discrete voltage changes in the input signal. This...
  • Page 179 Figure 9-15: External S&H Unity Gain Calibration Points...
  • Page 180 Procedure Required equipment: Digital Voltmeter (DVM) Voltage Source (Power Supply, Sequencer, Keyboard, etc.) Calibration Alignment Tool (Trim Pot Tweaker) VR119 Attach Positive Lead of DMM Front Panel VR119 here. Sample Level OR to P8/J8 Pin 11 here 100K Linear (whichever is easiest to access) Back of VR10 Adjust VR10 to exactly match...
  • Page 181 on pin 11 of P8/J8. If your DMM leads are narrow enough, you can slide down inside the P8 connector and measure the voltage there. If you have a “Toad Stabber” or “Pig Sticker” (sharp, pointy instrument with a wooden handle) that you can attach the positive DMM lead to, that will work as well.
  • Page 182 Overview The Mix input allows the signal from an external device to be mixed with the voltages generated by the Appendage. In order for external devices to provide precise pitch information, the external signal must kept at perfect unity gain.
  • Page 183 Figure 9-17: Mix Input Unity Gain Calibration Points...
  • Page 184 Procedure Required equipment: Digital Voltmeter (DVM) Voltage Source (Power Supply, Sequencer, Keyboard, etc.) Calibration Alignment Tool (Trim Pot Tweaker) Attach Positive Lead of DMM to R85 here. VR11 Adjust VR11 to exactly match voltage at R2 with voltage at Attach Negative Lead of DMM to TP9.
  • Page 185 Voltage Mode and Current Mode of operation. If you find that the LED lights at the very bottom of the ribbon in one mode, but not the other, switch the Appendage to the mode that does not illuminate the LED at the very bottom of adjustment, hold pressure at the very bottom of the ribbon, and very slightly adjust VR1 until the Gate LED illuminates.
  • Page 186 0V when there is no pressure applied to the ribbon. Do this for both current and voltage modes of operation. Once the calibration is complete, your Appendage should be up and running, and you will finally be able to interface it with your system.
  • Page 187 Appendix A Appendage Touch Ribbon Controller [Bill of Materials for PC board REV. 1.07H] Fixed Resistors (NOTE: 1% tolerances can only substitute for 5% tolerance values) REF. DESIG. QTY. VALUE COMMENTS CATALOG PART NO. R1-R11 100R 100 OHM 1/4W 1% METAL FILM...
  • Page 188 R111,R112 470R RES MF 1/4W 470 OHM 1% AXIAL DIGIKEY RNF1/4T1470FRCT-ND R113.R114 3.0K METAL FILM 3.00K OHM 1/4W 1% DIGIKEY P3.00KCACT-ND R119,R120,R19 4.7K METAL FILM 4.70K OHM 1/4W 1% DIGIKEY P4.70KCACT-ND R121-R125 5.6K 5.6K OHM 1/4W 5% CARBON FILM R130 DIGIKEY 5.6KQBK-ND R127 470K...
  • Page 189 Semiconductors REF. DESIG. QTY. VALUE COMMENTS CATALOG PART NO. CD4017 DECADE COUNTER DIGIKEY 296-2037-5-ND U2,U3 CD40106 HEX SCHMITT TRIGGER DIGIKEY 296-3503-5-ND CD4081 2-IN AND GATE QUAD DIGIKEY 296-2066-5-ND CD4013 DUAL D-TYPE FLIP-FLOP DIGIKEY 296-2033-5-ND TS556 TIMER DUAL LOW POWER DIGIKEY 497-7680-5-ND U7-U11 LF398 MONO SAMPLE &...
  • Page 190 Multi-Turn Trimmer Potentiometers REF. DESIG. QTY. VALUE COMMENTS CATALOG PART NO. VR1-VR10 100K 25 TURN, TOP ADJ DIGIKEY 490-2876-ND VR11 200K POT 200K OHM 1/4" SQ CERM SL MT DIGIKEY 3266W-204LF-ND VR12 POT CERM 10K OHM 25TRN TOP DIGIKEY 490-2875-ND Connector Hardware REF.
  • Page 191 Crimp Terminals & Misc. Hardware REF. DESIG. QTY. VALUE COMMENTS CATALOG PART NO. CRIMP TERM. DIGIKEY WM1114-ND QTY [6] PK of 10 FUTURLEC PLHDPIN TP1-TP9 5010 TEST POINT PC MULTI PURPOSE RED DIGIKEY 5010K-ND TYCO 796949-3 TERMINAL BLOCK 3 POS. MOUSER 571-7969493 Sockets REF.
  • Page 192 Appendix B Appendage Touch Ribbon Controller Panel Bill of Materials Panel Mount Potentiometers REF. DESIG. QTY. VALUE VR101-VR109 9 100K Linear Panel Mount Toggle Switches REF. DESIG. QTY. VALUE SW101 SPDT ON-OFF-ON SW102 DPDT ON-OFF-ON SW103 DPDT ON-ON SW104 SW105...
  • Page 194 Appendix C Appendage Touch Ribbon Controller Assembly Bill of Materials ™ ® ® Ribbon: spectrasymbol SoftPot or HotPot Assembly, preferred length. Available from: SparkFun: http://www.sparkfun.com/ Trossen Robotics: http://www.trossenrobotics.com/ Additional Hardware: J201: Isolated TRS, ¼”, (Mouser 502-N112BX) (Switchcraft N112BX) P201: SIP Connector (Mouser 571-1-1571994-0) (Tyco 1-1571994-0) Stereo TRS Cable, ¼”...
  • Page 208 E-10...