64 or 128 Output Driver Board Assembly Manual ()
Contents
1. socket pins Be patient E Capacitors 1 Install 00089 in positions C1 through C8 and C17 Ensure that these are seated as close to the board as possible Solder and trim the leads F Integrated Circuits 1 Install 00055 in the socket for U17 Align the notch on the IC with the notch on M the socket Place the IC in the socket carefully so as not to damage any leads ELECTROVOCE www electrovoce com 00161B 2 AO AO Be certain that all IC leads end up in the socket Push evenly until the IC body rests on the top of the socket DO NOT SOLDER 2 Install 00158 in the sockets for U2 U4 U6 U8 U10 U12 U14 and U16 Align the notch on the IC with the notch on the socket Place the IC in the socket carefully so as not to damage any leads Be certain that all IC leads end up in the socket Push evenly until the IC body rests on the top of the socket DO NOT SOLDER 3 Install 00159 in the socket for U1 U3 U5 U7 U9 U11 U13 and U15 Align the notch on the IC with the notch on the socket Place the IC in the socket carefully so as not to damage any leads Be certain that all IC leads end up in the socket Push evenly until the IC body rests on the top of the socket DO NOT SOLDER G Installing the Expansion Board Cable 1 Solder the 64 Output Driver expansion board cable 00083 to the board at J5 The red wire should face pin 1 IV INSPECT YOUR WORK Before proceeding take some time to inspect your workmanship Loo2. 64 or 128 Output Driver Board Assembly Manual l IMPORTANT NOTES BEFORE BEGINNING Q A Failure to take ESD precautions could permanently damage the components ESD damage is permanent and invisible to the naked eye Zapped parts are terribly difficult to find once they are assembled into your MIDItools Computer Although it is best to always wear your ESD ground strap while assembling your kit all assembly steps that require ESD protection are marked with this symbol in the margin B Many components are polarized This means that they must be installed only in the orientation shown on the layout diagram All assembly steps that pertain to polarized or directional components are marked with this symbol in the margin Incorrect orientation can damage components C This manual may make reference to the TOP BOTTOM LEFT or RIGHT sides of the circuit board These directions correspond to the circuit board held as shown in the layout diagram In other words holding the circuit board with the white text markings right side up D The components bodies are installed on the white text side of the circuit board inside the component outlines The component leads go through the holes in the circuit board and are soldered on the opposite side E Integrated circuits ICs are not soldered to the circuit board Instead IC sockets are soldered in their place When solder assembly is finished ICs are pressed in into the appropr
3. iate socket Il SET UP YOUR WORK AREA A Your work surface should be well lit and well ventilated B Gather your tools ESD grounding strap soldering iron solder noncorrosive electronics solder wire cutters screwdrivers phillips and pan head pliers wire strippers etc C Prepare ESD grounding protection A typical ESD ground strap is adequate Put the strap around your wrist and clip the other end to the head of a slightly loosened screw of a working grounded AC outlet plate The strap should have an internal 10M ohm or equivalent resistor in series to ground This will safely dissipate any static charge that might otherwise damage your components during assembly and test D Lay out the circuit board and components Do not remove components from their bags yet Familiarize yourself with the parts list layout diagram and part numbers Notice that the component bags are marked with the item number found on the parts list Also note ELECTROVOCE www electrovoce com 00161B 1 that the reference designators can be found on the schematic parts list and layout diagram Ill INSTALL THE COMPONENTS A Jumpers 1 Install 00093 everywhere you see the jumper wire length designation They should be bent to 4 There are 8 jumpers on this circuit board Mount the component bodies flush to the board surface Solder the leads and trim off the excess B Resistor Network Pack 1 Install 00092 at designator RP9 The pin cor
4. k for and correct the following potential problems solder that bridges two or more traces missed solder joints untrimmed leads incorrect component orientation forgotten parts did you have any leftover components ICs not inserted in sockets properly ICs not oriented properly are all the jumpers installed V FINAL ASSEMBLY A If you are using only one 64 Output Driver Expansion Board follow step 7 of the Final Assembly Manual 00116 B If you are using two 64 Output Driver Expansion Boards for a total of 128 drivers mount the boards according to the following instructions 1 Solder the second expansion cable 00083 to position J6 on both expansion boards The red wire should face pin 1 on both boards 2 Solder or screw in wires for the external power supply that the drivers will be switching READ THE USER MANUAL 00259 BEFORE COMPLETING THIS STEP 3 Place four 1 5 screws 00064 through the four remaining holes in the enclosure bottom 00049 Set the unit on a solid surface so that the screws point upwards into the body of the unit Slide four spacers 00113 over the screws 4 Lift the entire unit so that the screws fall half way out of the board and place the first expansion board 00115 solder side down onto the screws The 34 pin ELECTROVOCE www electrovoce com 00161B 3 connectors should face out of the back of the unit Again place the entire unit on a solid surface so that the scre
5. responding to the stripe on the part must be oriented towards the square solder pad on the back of the board as illustrated by the dot on the assembly diagram Mount the component body flush to the board surface Solder the leads 2 Install 000157 at designators RP1 RP8 The pin corresponding to the stripe on the part must be oriented towards the square solder pad on the back of the board as illustrated by the dot on the assembly manual Mount the component body flush to the board surface Solder the leads C IC and Connector Sockets 1 Install 00070 flush to the circuit board in position U17 The notch on the socket body is used to indicate pin 1 of the IC As shown in the layout diagram the notch on the socket should point towards the notch on the circuit board Solder all 16 socket pins The notch on the socket board also indicates pin 1 on the ribbon cable 2 Install 00071 flush to the circuit board in positions U2 U4 U6 U8 U10 U12 U14 and U16 The notch on the socket should point towards the notch on the circuit board Solder all 20 socket pins 3 Install 00155 flush to the circuit board in positions U1 U3 U5 U7 U9 U11 U13 and U15 The notch on the socket should point towards the notch on the circuit board Solder all 18 socket pins 900 D Connectors 4 Install 00156 flush to the circuit board in positions J1 and J2 The long output pins of the socket should face the back of the circuit board Solder all 34
6. ws are fully inserted into the chasis 5 Slide four 1 2 spacers 00113 over the screws 6 Again lift the unit up and place the second expansion board onto the screws Release the board so that it sets back down on the solid surface 7 Carefully secure the sandwiched circuit boards with the four provided kep nuts 01137 Inspect the boards to ensure that no components are squashed or the ribbon cables kinked Also make sure that the external power supply wires are not bound behind the back of the boards If any problems are detected loosen the kep nuts and correct ELECTROVOCE www electrovoce com 00161B 4
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