Preliminary Design Review
Contents
1. Quick cutting between images often with handheld cameras is typical fare for your generation e g the contemporary Bourne movies This is maddening to many older folks The older folks are probably paying you Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 49 Practice Prevents exceeding your time limit temptation to read from the screen anxiety embarrassment amp shame Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 50 amp Repeat the questioner s question The best responses sound like enthusiastic replies to a respected peer Authenticity is a winner Do not start waffling babbling crying Do not lie Just don t The result is a total loss of credibility If you do not know it is acceptable to say effectively 1 do not know but shall find out and get back to you Brent s Q amp A Georgialnstiwte of Technology Whit Smith 2008 ECE4007 L12 51 Posted Online Dress recommendations Content from last two lectures Christina Bourgeois s assignment handout UPCP Grading Criteria Georgialnstiiuite of Technology Whit Smith 2008 ECE4007 L12 52 Grading Criteria Command of Material Voice Projection Eye Contact Gestures Posture Confidence eAitire Overall Quality of PowerPoint Slides Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 53 Fall Brea2. Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 6 Project Documentation A critical aspect of your final project deliverables amp Supporting your PDR for some Project Advisors Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 7 Types of Project Documentation System High Level Big picture block diagrams Detail Low Level Electrical schematics mechanical drawings Interconnections How different modules are connected Software Flow charts commented source code End User Customer Documentation Operator s manual maintenance manual etc General Project Document the design process Georgia LLLI Whit Smith 2008 ECE4007 L12 8 High Level Block Diagrams Needed for every report and presentation Show functional elements these are not necessarily physical elements although they often are Clearly label each element Indicate interconnections and connectivity type e g analog digital data bus etc Label all interconnections Use arrows to show directionality Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 9 Previous Example System Description PC Based Oscilloscope TDS5034 Controls multiplexer via USB interface Controls pulser receiver via GPIB interface Runs LabView Pulser Receiver Signal output goes to scope input and
3. LEAD SCREW NUT REXROTH STAR 22 1 02 5267 2 REVISIONS DESCRIPTION P N ITEMS 11 12 18 amp 23 WAS A 7 18 00 REG REVISED SCREW TO STAR GENERAL REVISIONS 1 24 01 P N ITEM 29 WAS 11 6 5 15 01 J VE CORA ALIN DETAIL DETAIL D 2 2 02 5037 1 STOP LIMIT ALUMINUM 2 PLACES 2 PLACES 1 4 02 5038 1 A BRACKET SWITCH ALUMINUM PART NUMBER DESCRIPTION MATL SPEC r LIST 50 6 10 32 X 1 LG 50 HD CAP SCREW STANLESS STEEL E ES Is 82 vius US ao je F SESAN ES 49 4 1 4 20 X 1 1 4 16 505 HD CAP SCREW STAINLESS STEEL 45 NT 0 Uia 47 1 4 20 X 3 4 LG S0C HD CAP SCREW STAINLESS STEEL 43 10 amour 25 00 SCANNER AXIS DRIVE ee e a or 80 5070 1 0 PARTS LIST pen gx 175 52 1 OF 2 Institute of Whit Smith 2008 ECE4007 112 29 3 2 1 ALUMINUM 1 02 5198 2 HOUSING BEARING ALUMINUM K 1 102 5198 1 HOUSING BEARING ALUMINUM STOP LIMIT ALUMINUM 6 2 02 5041 1 SWITCHMAN ALUMINUM 5 2N02 5040 1 A 4NCHOR DETENT ALUMINUM BRACKET SWITCH ALUMINUM 3 2 02 5938 1 SWITCHMAN ALUMINUM 212 02 505 1 STOP LIMIT ALUMINUM BRACKET SWITCH ALUMINUM ITEM PART NUMBERN DESCRIPTION MAT L SPEC LIST U U u L 2 A s 1 02 5197 1
4. RE Fos they eme 1 02 5198 2 A HOUSNG BEARING ALUMINUM ach eli 1 02 5198 1 HOUSNG BEARNG ALUMINUM d 29 7 2 02 42 1 8 sroP UMT ALUMINUM Li LLLLLLLL LII 1 1 S B 2 02 5041 1 SWITCHMAN ALUMINUM 5 2 02 5040 1 ANCHOR DETENT ALUMINUM 31 4 2 02 5038 1 HRACKET SWITCH ALUMINUM 3 2 02 5058 1 SWITCHMAN ALUMINUM DETAIL DETAIL 2 2 02 5037 1 8 STOP LIMIT ALUMINUM 2 PLACES 2 PLACES 1 4 02 50538 1 BRACKET SWITCH ALUMINUM QTY PART NUMBER DESCRIPTION MATL SPEC PARTS LIST 501 6 10 32 X 1 LG 50 HD CAP SCREN STANLESS 5 46 2 10 32 X 2 1 2 LG soc SCREW STAINLESS STEEL 49 4 14 20 X 1 1 4 Lc soc HD CAP SCREW STAINLESS 5 45 4 10 32 X 2 1G 50 HD CAP SCRE STAINLESS STEEL 48 20 14 20 X 1 LG c 0 pp SANE mios EC wor S XX 2 018 ASSEMBLY 47 16 1 4 20 x 3 4 LG 50 SCREW STANLESS 5 43 28 10 32 X 3 4 LG 505 HD SCREM STANLESS STEEL Aum 25 SCANNER Y AXIS DRIVE DESCRIPTION MATL SPEC EE I H 80 5070 1 D Institute of nology Whit Smith 2008 ECE4007 L12 30 Typical Part Number Block 10 1 Q2 5197 1 A NUT ALUMINUM KIER 02 5198 2
5. left 8 right Signals going to and coming from other pages top amp bottom a Ooocoooo x 4 6 p A x ga ju HCL25 l J3 m a 5 eres HC1538 pra 13 J3 9 5 q Bb HR MR RXCX 3929 1538 m 296 J2 HC S J 01 TE en d e 1 2 3 4 5 8 8 8 Show power and ground on connectors Ui lOcoooooo 048298 Company Company Name Logo SERVO CONTROLLER OAAUN OCT 29 R LONG 189 gt gt 117895 LI V feto e Tw J UF Voltage regulator and decoupling caps Unused Gates A Company Logo Lus wr SERUO CONTROLLER 123 DRAIN oc pee p oS 16 Bs 244 P HC573 P HC573 5110 i P 573 P HCS73 JP 2764 P 574 D s P 574 5 6264 1 s P HC574 x Georgialnstiiuite of Technology PINIGRA PIN28RA PINA a 8 e 8 4 1556 NIS Doe Whit Smith 2008 p 92 B m n B B p HC4538 5 8 5 JP JP CD4020 3 B HC4538 8 CD4023 P HC573 1 ices em 8 105 3 3F Physical locations shown for all parts All part numbers
6. 9 HD CAP SCREW STAINLESS STEEL 1 4 Lc SOC HD SCREW STAINLESS STEEL ASSEMBLY 47 1 4 20 X 3 4 LG 505 HD CAP SCREW STANLESS STEEL 43 10 32 X 3 4 LG 506 HD SCREW STANLESS STEEL im 15299 SCANNER Y AXIS DRIVE 8 0 P A 5070 1 D em OU PARTS LIST PARTS LIST WA Institute of nology Whit Smith 2008 ECE4007 L12 28 REVISIONS 42 18 10 52 X 1 2 LG BUTTON HD SCREW STAINLESS STEEL 8 22 X 3 4 Le SX HD OF SCREN STANLESS STEEL DESCRIPTION L DATE BY 632 x 578 LG Sc Sami SASS STER B P N TDS 11 12 18 amp 23 WAS A 7 18 00 REG 5 32 X 1 Le BUTION HD StRDHSSTANLESS STEEL C REMSED SCREW TO STAR GENERAL REVSIONS 1 24 01 REG screw STAINLESS pm D ITEM 29 WAS CN11 6 5 15 01 REG 8 X 378 15 Sx Or SCREW STAINLESS STEEL 5232 X T Ve WO sosv MISTANLESS STEEL 35 1 BODMR FX6A45 STOP SWICH ALLEN BRADLEY ee R 32 2 64 01 10 PADDLE LATCH SOUTHCO 31 54 51 BUMPER McMASTER CARR 30 4 SSMDSSN _____ PLUNGER VER AA aH 28 1 TCN 01 F_ _ LOCKNUT 27 1 DKN4S 41 98 11 CCUPLING RIMTEC 26 4 R 8 22 BEARING MRC 23 1 428 40100 00 SERVO MOTOR PACF SCENTEK C 24 1 48 5068 1 A BALL GUIDE SPECS THOMSON 23 1 3075248 1 A
7. identified All component values identified ECE4007 L12 25 Physical locations related to unique component identifiers Part numbers and component values are often on this drawing better than separate drawings Georgialnstiiuie of Technology Whit Smith 2008 ECE4007 L12 26 aS TS 75 37 X 12 TE BUTTON WO SOR DESCRIPTION BY HIZI REV 40 REVISED SCREW TO STAR GENERAL REMSIONS 1 24 01 REG 16 4 40 X 3 8 LG 37 8 2 56 X 5 8 15 36 4 8 32 x 1 1 4 L6 35 1 BOOMR FXBA4S EMERG STOP SWIC 34 4 5 D H CRD 33 4 152 32 2 64 01 10 PADDLE LATCH SOUTHCO 1 8540 51 McMASTER CARR 30 4 SSMDSSN _____ PLUNGER VER 28 1 001 08 22 HANDWHEEL DUPLING IMTEC LESS STEEL STEEL STEEL STAINLESS STEEL STEEL Al STEEL AINLESS STE BRAD CRD 88 3 e B ge m 28 4 E gi RYO se 3 3 BEE 2m DRILL DIMPLE SCREW SHAFT FOR SETSCREWS AT ASSEMBLY SET ANGLE KET MOTO UNT EMERG M CARRIAGE LATE CARRIAG 10 1 02 5197 1 BRACKET BALL NUT 9 1 02 5198 2 HOUSINGC BEARIN 8 1 02 5198 1 HOUSINC BEARING 7 2 02 5042 1 8 6 2 02 5041 1 5 2 02 5040 1 2 02 5039 1 H
8. 1 OF 1 Institue of nology Whit Smith 2008 ECE4007 L12 33 Interconnection Documentation Interconnections can be internal e g between boards in a chassis and external e g between instruments in a system No standard way to document interconnections Standard cables can be identified by part number and name e g CAT6 USB e Custom cables have to be described in detail Drawing showing construction details and or Table showing pin numbers and wire colors if needed e Wiring connections with discrete wires has to be described in detail Georgialnstiiuite of Technology Whit Smith 2008 ECE4007 L12 34 oystem Block Diagram Calls Out Interconnections 5800PR Pulser Receiver GPIB Control Signal Out analog coax TDS5034 LabView Transmit analog coax Receive analog coax Digitized by TDS5034 USB Control Oe ee Multiplexer Digital Control 24 Ribbon Cable USB Converter inside Mux Custom cable needs further documentation To From Transducers Georgialnstituie of technology Whit Smith 2008 ECE4007 L12 35 Example DB9 to Ribbon Cable 1 2 3 4 5 OOOOO 9 Ribbon Header 9999 9 8 7 6 6789 Op 3 4 0 3 9 6 Not Used G
9. A HOUSING BEARING ALUMINUM HOUSNG BEARING ALUMINUM SWITCHMAN ALUMINUM ALUMINUM a 02 5039 1 A ER BRACKET SWITCH 3 2 02 5038 1 SWITCHMAN ALUMINUM __ ITEM QTY PART NUMBER DESCRIPTION SPEC PARIS LIST ros Whit Smith 2008 ECE4007 L12 31 410 32 UNF X 9 16 DEEP 2 PLACES AS SHOWN 4 40 UNC THRU 1 2 2 PLACES AS SHOWN 1 4 DIA THRU 002 909 1 4 20 UNC AS SHOWN 750 DIA THRU C DRILL 9 32 TO SLOT C BORE 13 32 DIA X 1 4 DEEP 380 005 000 was 385 010 000 11 6 00 REG DESCRIPTION REVISIONS UNLESS SPECIFIED DIMENSIONS ARE IN INCHES TOLERANCES FRACTIONS 21 54 DECIMALS ix e STOP SCANNER TRAVEL LIMIT ANGLES 5 DRAWN REG DATE 4 00 096 Georgialmstitzte Mechanical Detail Drawing from Assembly Drawing of Technolog ech Whit Smith 2008 ECE4007 L12 32 i DESCRIPTION BY REVISIONS STOP SCANNER TRAVEL LIMIT d 6061 T6 ALUM 02 5042 1 B BLACK ANODIZE 002 1 4 20 UNC AS SHOWN 750 DIA WRU C DRILL 9 32 TO SLOT B C BORE 13 32 DIA X 1 4 DEEP 380 005 000 WAS 385 010 000 11 8 00 REG DESCRIPTION REVISIONS 14 22 sots STOP SCANNER TRAVEL LIMIT Xi ALUM Pr 4 00 02 5042 1 ELA SCLE 2 1 005 C SIZE 508 p170PD SHT
10. H __ ena 32 2 54 01 10 PADDLE LATCH SOUTHCO 31 oseoks BUMPER McMASTER CARR 30 ssMossN BALL PLUNGER 29 1 ovi s smsas HANDWHEEL BERG z amp 1 cN o1 r Locknut RULAND 27 71 5 41 8 COUPLING 26 4 R 8 zz BALL BEARING MRC 25 1 PuA2ZB 00T00 00 SERVO MOTOR 5 u 2 2 ASSEMBLY SCANNER Y AXIS DRIVE n EEEIEE E ES 22222227526 a d x A ALUMINUM ALUMINUM C SIZE P170PD 1 OF 2 ALUMINUM Opi j MP NNER NNER NSING MP STOP RIAGE 7 2 02 5042 1 8 STOP LMIT ALUMINUM 2 02 5041 1 SWITCHMAN ALUMINUM 5 2 02 5040 1 A ANCHOR DETENT ALUMINUM 4 2 02 5038 1 A BRACKFT SWITCH ALUMINUM F 2 02 5058 1 SWTCHMAN ALUMINUM 2 2 02 5037 1 ALUMINUM 2 PLACES 4 02 5038 1 A BRACKET SWITCH ALUMINUM MDANI PART NUMBER PARTS LIST 50 6 10 32 X 1 LG S0C HD SCREW STAINLESS STEEL 46 2 10 32 X 2 1 2 LG SOC HD CAP SCREW STAINLESS STEEL MES aa A DERION 49 4 1 4 20 X 1 1 4 16 505 HD CAP SCREW STAINLESS STEEL 45 4 10 32 X 2 LG S0C SCREW STAINLESS STEEL TOLERANCES 4 20 X 116 _
11. Lecture 12 4007 ECE Culminating Design Project Preliminary Design Review 2008 October 1 Georgialhstitute of Technology Whit Smith 2008 ECE4007 L12 1 Preliminary Design Review PDR Finish by October 24 Details specific to your Project Advisor and section Graded jointly by your Project Advisor and UPCP some projects e g externally soonsored may present in different venues Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 2 Preliminary Design Review PDR Design Review Presentation Final Presentations Recommended be By 24 October Dead Week Presentation Content 1 Qualitative Project Goals brief X 2 Quantitative Project Specifications X 3 Background Research State of the Art audience relevant 4 Status X 5 Schedule GANTT or similar chart X X X X X X X X X Highlights Results with contrast to proposal 10 minutes 15 minutes Georgialhstiiute of Technology Whit Smith 2008 ECE4007 L12 3 Preliminary Design Review PDR Common Industrial Practice Convince whomever is funding your project that The design is sound You are making reasonable progress e A favorable outcome is likely Review specifications particularly any changes Review plan for demonstration and acceptance testing Other purposes Review project tasks and schedule Present marketing and cost analysis if appropriate e he PDR convinces your funding source
12. RACKET SWITCH ALUMINUM 3 2 02 5038 1 A SWITCHMAN ALUMINUM 2 2 02 5037 1 8 sroP LiMIT ALUMINUM 1 4 02 5036 1 BRACKET SWITCH ALUMINUM eM QTY PART NUMBER DESCRIPTION MATL SPEC PARTS LIST gt ALUMINUM ALUMINUM LG SOC HD CAP SCREW STAINLESS STEEL maa g OOA I T Eae ta ____ B EAM ER 47 16 1 4 20 X 3 4 16 505 SCREW STANLESS 5 43 28 10 32 X 3 4 LG SOC HD CAP SCREW STANLESS STEEL x SCANNER Y AXIS DRIVE WA PARTS LIST PO 1 or 2 Georgialnstiiute Mechanical Assembly Drawing of Technology Whit Smith 2008 ECE4007 L12 27 REVISIONS REV DESCRIPTION DATE BY B P N ITEMS 11 12 18 amp 23 WAS A 7 18 00 REG C REVSED SCREW TO STAR GENERAL REMSINS 1 24 01 REG 42 18 10 52 X 1 2 LG BUTTON SCREW STAINLESS STEEL 41 24 8 52 X 3 4 LG SOC HD SCREW STAINLESS STEEL 40 4 6 52 X 5 8 LG SOC HD CAP SCREW STAINLESS STEEL 39 6 6 52 X 1 4 LG BUITON HD SCREW STAINLESS STEEL 38 16 4 40 X 3 8 LG SOC HD CAP SCREW STAINLESS STEEL D 29 WAS 11 6 5 15 01 REG 37 8 2 55 X 5 8 LG 506 HD SCREW STAINLESS STEEL 56 4 8 32 X 1 1 4 Lc SOC HD CAP SCREW STAINLESS STEEL 35 1 BOOMR FXGAZS EMERG STOP SMICH ALLEN BRADLEY S SMICH ACTUATOR Den AKO 1se2 se SWITC
13. eorgialinstitute Different manufacturers can number pins differently of Technology 2 3 4 5 7 10 Whit Smith 2008 ECE4007 L12 36 Software Documentation Usually a flowchart is useful for helping someone else understand the flow Also helps the designer figure out how various modules of the software interact Software documentation should enable someone else to work on your code Well written and commented source code is absolutely essential Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 37 Example High Level Flow Chart Parameters for each channel are transmitter receiver P R setup file and TDS5034 setup file Define channel sequence and parameters Ready to acquire Initiated Acquire store single either by measurement from keystroke or all channels timed Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 38 Code Examples Are revisions identified and described s formatting consistent and clear Are comments are appropriate not too few or too many Are variable names reasonable descriptive without being too long Georgialnstiwte of Technology Whit Smith 2008 ECE4007 L12 39 Maintain Version and Revision Control of Software Use a version control software product such as Microsoft Visual Source Safe Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 40 Typ
14. ical Software Version Control Features Automatically tracks and controls source code changes Provides sharing and linking capabilities for multiple developers Supports parallel development and branching There are overhead costs associated with using version control software Ce ci Technology Whit Smith 2008 ECE4007 L12 41 General Revision Version Control Most companies follow strict procedures for version and or revision control after the product is completed Normally required to comply with dictates of most quality assurance systems Engineering Change Notice DCN Design Change Notice Keep an index of ECN DCN numbers Georgialnstiiuite of Technology Whit Smith 2008 ECE4007 L12 42 Customer Documentation e User s Operator s Manual How does the end user interact with the product Engineers usually have to write at least some and often most of the User s Manual particularly software engineers Maintenance Manual What does the end user or the manufacturer need to know to maintain the product Engineers usually write this manual Many technical writing opportunities for design engineers Georgialnstitiuie of Technology Whit Smith 2008 ECE4007 L12 43 Documenting the Design Process Laboratory notebooks or some paper system of recording your design progress Work in progress sketches schema
15. is digitized Transmit and Receiver are connected to the Mux Eight Channel Multiplexer Supports up to 8 transducers Routes Transmit and Receive to from transducers USB interface with scope PC Georgialnstitute of Technology Whit Smith 2008 ECE4007 L12 10 Previous Example System Block Diagram 5800PR Pulser Receiver GPIB Control Signal Out analog coax Transmit analog coax TDS5034 LabView Digitized by TDS5034 Receive analog coax USB Control Digital Control Ribbon Cable USB Converter o o Multiplexer Much clearer To From Transducers More information Georgialnstitute of Technology Whit Smith 2008 ECE4007 L12 11 Would you rather Look at a Block Diagram or Read a Text Description Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 12 Example System Description Ultrasonic Structural Health Monitoring System Sensor Cluster Multiple ultrasonic sensors up to 16 per cluster Each sensor can operate as a transmitter or a receiver Synchronization between all sensors in a cluster Processing capabilities for local data analysis e Structure with Multiple Sensor Clusters Local sensors for monitoring small areas Global sensors for monitoring large areas e Wireless Link Sends raw waveforms or processed data to ba
16. k October 11 14 You are welcome to work on your projects Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 54
17. se station COTS USB link 2 4 GHz Base Station Further processing of data Can link combine data from multiple sensor clusters Georgialnstituie of Technology Whit Smith 2008 ECE4007 L12 13 Example System Description Ultrasonic Structural Health Monitoring System Wireless USB Link Local Sensor Local Sensor Em Waveform and or Cluster pL Cluster 200 M Feature Data Local d m Th Sy F Processing gt Central Processing Station Global Structural Component Georgialhstitute of Technology Whit Smith 2008 ECE4007 L12 14 Temperature Monitor Display Temperature A D Interface Sensor Converter Logic Functional Block Diagram Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 15 of Electronic Files Mechanical drawings Electrical electronic schematics Software source code Project planning charts Use a version revision scheme for naming files and on all title blocks and software headers Date and keep a chronological record of revisions Institute nology Whit Smith 2008 ECE4007 L12 16 Typical ANSI Standard Title Block ANSI American National Standards Institute List of revisions Revision letter Title Drawing number File information of Technology Whit Smith 2008 ECE4007 L12 17 Electrical Electronic Schematics Physical layout Sho
18. tics flow charts block diagrams etc Electronic files Software source code Drawings and schematics Project correspondence Emails notes from phone calls letters etc Other project documentation Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 44 Project Correspondence Any information transmitted to and or shared with others that relate to the project Customer letters and emails Internal memos and emails Keep a posted hard copy file with a file index Table of Contents to document important project correspondence Important to keep organized and up to date Georgialnstiwte of Technology Whit Smith 2008 ECE4007 L12 45 Misc Project Documentation Related research articles Vendor information Purchasing records Meeting notes Copies of electronic files Georgialnstiwte of Technology Whit Smith 2008 ECE4007 L12 46 General to Specific You cannot show your entire project at a fully detailed level of abstraction You are the ones who select what specifics to show Choose what is relevant to the point you are illustrating amp your audience You are demonstrating your creativity Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 47 Presentation Styles MTV Versus 19505 TV News Broadcast Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 48 Presentation Styles
19. to keep on supporting you e An unsuccessful PDR outcome is project cancellation Should be optimistic but realistic e Dont cover up problems Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 4 PDR Presentation Guidelines Presentation must be in PowerPoint not a PDF Every team member must give a non trivial part of the presentation several minutes Your audience for the presentation is company management including technical management and engineering peers who will be evaluating your progress You need to convince management that your project is worthy of continued support and that any problems are understood and under control Your presentation should include graphical information such as block diagrams screen layouts flow charts etc and not just text Should clearly indicate current project status Georgialnstiwte of Technology Whit Smith 2008 ECE4007 L12 5 Project Documentation for the PDR e A PDR presentation cannot properly show all needed project documentation A supplementary documentation package may required check with your project advisor e Should convey technical details beyond the scope of a presentation such as Detailed schematics Mechanical drawings Screen layouts GUI details Detailed block diagrams and flow charts Prepare a hardcopy package for your project advisor and post all information to your project website as a zip file
20. w components I O connectors and interconnections between circuit blocks Parts list List all procured parts and vendors Numbers assigned must agree with physical layout and schematics Schematics Label components with part numbers values and identifier numbers e g U1 U2 R1 R2 Label all 1 0 connectors and interconnections between schematics ry to make signals flow from left to right and top to bottom inputs on left top outputs on right bottom Georgialnstituite of Technology Whit Smith 2008 ECE4007 L12 18 schematic Example VHF Pre Amplifier Ramsey PR 20 Units jr M Capacitors 9 VOLIS DC 2 G Resistors Signal Flow Power Flow 5 Inductor Arrow Fa 2 f N gt INPUT 100 RF OUTPUT ipi Di m 2502498 of Technology Whit Smith 2008 ECE4007 L12 19 Complex Schematic Example servo controller board Multi page schematic Component overlay Silkscreen overlay Georgia EE Enn O Whit Smith 2008 ECE4007 112 20 DATA BUS 6 w Paseo 25 Pump 8 JS hos e PA oooooooo o Pins of connector HC1538 Company Name Company Signals Logo going to SERVO CONTROLLER other DRAUN Me 19 23 pages Ems pr rose 2 DATA BUS PORTIS Signals flow left to right and top to bottom usually Connectors
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