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Summary of Contents for GEKCO CLK056
- Page 1 GEKCO MODEL CLK056 DIGITAL CLOCK ASSEMBLY & OPERATION MANUAL GEKCO Inc. Copyright 2018 1565 SW Cypress Ln GEKCO Inc. McMinnville, OR 97128 All Rights Reserved P/N 595-325 REV 181030 (503) 472-4770 Printed in the United States of America...
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Page 3: Table Of Contents
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL TABLE OF CONTENTS INTRODUCTION ..............................3 OPERATIONAL SUMMARY .......................... 3 PARTS AND UNPACKING ..........................4 3.1............................4 EVEL ARTS 3.2..........................5 ISPLAY OARD ARTS 3.3............................ 6 OARD ARTS 3.4. - Page 4 GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL LIST OF FIGURES 1: D ................10 IGURE ISPLAY OARD OMPLETED SSEMBLY 2: D ..............10 IGURE ISPLAY OARD OTTOM OMPLETED SSEMBLY ......................11 IGURE ISPLAY OARD OTTOM ...
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Page 5: Introduction
This clock has 6 digits for hours, minutes and seconds and the hours display can alternate between two time zones, i.e. Coordinated Universal Time (UTC) and local time. The CLK056 is offered in kit form or fully assembled and tested. The kit is very easy to assemble with no surface mount parts. -
Page 6: Parts And Unpacking
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Parts and Unpacking The kit is packaged in the order that the assembly is recommended. Each assembly block has it’s associated parts bag. Only open a parts bag when called for during assembly to avoid misplacing parts. -
Page 7: Display Board Parts List
DIGITAL CLOCK MODEL CLK056 3.2. Display Board Parts List Clock 056 Display Board Printed Circuit Assembly (PCA) parts kit, P/N DBR656-KIT ITEM REFDES PART NO. DESCRIPTION DS1,DS2,DS3 412-499 LED Display Module 7-Segment 2-Digit 0.56" 434-3110 Socket IC Dip24-300 442-3090 IC LED Display Driver MAX7219CNG... -
Page 8: Main Board Parts List
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL 3.3. Main Board Parts List Clock 056 Main Board PCA parts kit, CLK056M-KIT ITEM REFDES PART NO. DESCRIPTION VALUE C4,C5,C6 20-104 Cap mono Cer 50v radial lead 0.1UF C1,C2 21-220 Cap mono Cer COG radial... -
Page 9: Final Assembly Hardware Parts List
DIGITAL CLOCK MODEL CLK056 3.4. Final Assembly Hardware Parts List Clock 056 Final Assembly Hardware parts kit, P/N CLK056HDW-KIT ITEM PART NO. DESCRIPTION 255-25511 Hardware Standoff Nylon M3 x 12 mm 255-29341 Hardware Screw Nylon M3 x 0.50 mm Thread,... -
Page 10: Enclosure Parts List
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL 3.5. Enclosure Parts List Clock 056 Enclosure kit, P/N CLK0X6ENC-KIT ITEM PART NO. DESCRIPTION 86-18111901 Front Panel Acrylic 3mm Transparent Red 86-18111902 Back Panel Acrylic 3mm Clear 86-18111903 Top Panel Acrylic 3mm Clear... -
Page 11: Assembly Notes
DIGITAL CLOCK MODEL CLK056 Assembly Notes 4.1. TOOLS 4.3. SOLDERING You will need these tools to assemble your kit. Soldering is one of the most important operations you will perform while assembling Diagonal Cutters your kit. A good solder connection will form an ... -
Page 12: Step-By-Step Assembly
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Step-By-Step Assembly 5.1. Display Circuit Board Figure 1: Display Board Top Side Completed Assembly Figure 2: Display Board Bottom Side Completed Assembly REV 1.0 GEKCO INC. -
Page 13: Figure 3 Display Board Bottom Side
DIGITAL CLOCK MODEL CLK056 Open the Display Board Printed Circuit Assembly (PCA) parts kit, P/N DBR656-KIT Refer to Figure 3 for the following steps. Position the Display Circuit Board with the bottom side facing up as shown NOTCH Figure 3 Display Board Bottom Side... -
Page 14: Figure 4: Display Board Top Side Assembly Pictorial
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Position the Display Circuit Board with the component side facing up as shown below LED4 LED3 LED5 LED6 Figure 4: Display Board Top Side Assembly Pictorial Install the decoupling capacitor. - Page 15 DIGITAL CLOCK MODEL CLK056 In the next step, make sure the LED display modules are oriented correctly. Match the decimal point on the display with the orientation shown on the PCB silkscreen. Solder the corner pins first and make sure the display is mounted flush with the board and oriented correctly and then solder the rest of the pins.
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Page 16: Main Circuit Board
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL C2: 22 pF (22) radial-lead ceramic capacitor 5.2. Main Circuit Board In the next step be sure to observe the correct polarity as noted before and lay the capacitor down against the board. -
Page 17: Figure 9: Main Board Top View 4
DIGITAL CLOCK MODEL CLK056 The display board assembled earlier. The display board connector J1: Connector header male 10 pin The main board connector J4: Connector Header Female 10 pin Refer to figure 10 and 11 for the next steps Figure 9: Main Board Top View 4... -
Page 18: Initial Tests
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Now you can disassemble the two boards Main Board together and set aside the two M3 x 12 mm nylon standoffs to be used later. The four M3 x Verify that the resistance with the... -
Page 19: Final Tests
DIGITAL CLOCK MODEL CLK056 ( ) U1: MAX7219 IC 3. Check capacitor values carefully. Be sure the proper value part is installed at each Install the IC on the main circuit board: capacitor location and that the negative ( ) mark or a positive ( ) mark is ( ) U1: ATMEGA328P IC oriented correctly. -
Page 20: Figure 13 Enclosure Back
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Locate the clear back panel and insert Insert the two M3 x 12mm hex two white screws into their respective mounting standoffs and secure to the two rear screws. holes and add two ¼” spacers. Lay this assembly down on the work space with the screw threads facing up. - Page 21 DIGITAL CLOCK MODEL CLK056 Install two spacers over the mounting holes Add the front panel and make sure all pieces are aligned properly. Add two black screws and loosely tighten to secure the enclosure. Congratulations have successfully completed the assembly of the unit and now you can enjoy using a clock that you have assembled yourself.
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Page 22: Theory Of Operation
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Theory of Operation 11.1. Block Diagram DISPLAY BOARD UTC/LOCAL HOURS MINUTES SECONDS 8 8 8 8 8 8 DISPLAY DRIVER MAIN BOARD MENU REAL TIME CLOCK MICROCONTROLLER BUZZER The clock consists of two modules, the main board and the display board. The clock was designed this way to allow the same main board to use different display boards which could vary in size. -
Page 23: Display Board Circuit Description
This device uses a 3 wire, I2C interface to communicate with the microcontroller. Connector J2 is the programming interface connector. This allows the firmware to be modified and the ability to reprogram the microcontroller. The CLK056 board looks just like a Arduino Uno and can use the popular Arduino IDE. -
Page 24: Firmware
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Firmware 12.1. Flow Chart SET LOOP MENU LOOP 30 SECOND TIME OUT ON ALL FUNCTIONS MENU PLUS SELECT HOURS INCREMENT HOURS DISPLAY TIME MENU SET TIME PLUS MENU SELECT MINUTES INCREMENT MINUTES... -
Page 25: Firmware Design Description
DIGITAL CLOCK MODEL CLK056 12.2. Firmware Design Description PCA Pictorial Diagrams 13.1. Main Board GEKCO INC. Rev 1.0... -
Page 26: Display Board
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL 13.2. Display Board Figure 15 Display Board Top Side REV 1.0 GEKCO INC. -
Page 27: Figure 16 Display Board Bottom Side
DIGITAL CLOCK MODEL CLK056 Figure 16 Display Board Bottom Side GEKCO INC. Rev 1.0... -
Page 28: Schematic Main Board
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Schematic Main Board REV 1.0 GEKCO INC. -
Page 29: Schematic Display Board
DIGITAL CLOCK MODEL CLK056 Schematic Display Board GEKCO INC. Rev 1.0... -
Page 30: Document Revision History
GEKCO DIGITAL CLOCK P/N CLK056 ASSEMBLY & OPERATION MANUAL Document Revision History 30-Nov-18 Initial Release REV 1.0 GEKCO INC.
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