background image

DIGITAL CLOCK MODEL CLK100

 

GEKCO INC.    

 

 

Rev 1.1  

 

 

 

 

11

 

5.

 

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

 

Summary of Contents for CLK100

Page 1: ...CLOCK MODEL CLK100 ASSEMBLY OPERATION MANUAL GEKCO Inc 1565 SW Cypress Ln McMinnville OR 97128 503 472 4770 P N 595 445 REV 1 1 Copyright 2021 GEKCO Inc All Rights Reserved Printed in the United State...

Page 2: ...GEKCO DIGITAL CLOCK P N CLK100 ASSEMBLY OPERATION MANUAL 2 REV 1 1 GEKCO INC THIS PAGE INTENTIONALLY BLANK...

Page 3: ...INITIAL TESTS 17 7 FINAL TESTS 18 8 IN CASE OF DIFFICULTY 18 9 FINAL ASSEMBLY 18 10 OPERATIONAL INSTRUCTIONS 21 10 1 SETTING THE TIME 21 10 2 SETTING THE UTC MODE ON OR OFF 21 10 3 SETTING THE UTC HOU...

Page 4: ...IGURE 7 MAIN BOARD TOP VIEW 2 15 FIGURE 8 MAIN BOARD TOP VIEW 3 15 FIGURE 9 MAIN BOARD TOP VIEW 4 16 FIGURE 10 MAIN BOARD BOTTOM VIEW 16 FIGURE 11 RTC MODULE ASSEMBLY 17 FIGURE 12 DISPLAY BOARD HARDWA...

Page 5: ...y information Also this design is fully open source for both the hardware and firmware There are full schematics and pictorial diagrams of the hardware also there are links and flowcharts of the firmw...

Page 6: ...misplacing parts 3 1 Top Level Parts List Remove the parts from the main bag and separate each individual parts bags ITEM QTY PART NO DESCRIPTION 1 1 DBR100 KIT Clock Display Board PCA parts bag 2 1 C...

Page 7: ...D Display Module 7 Segment 2 Digit 0 56 2 1 X1 434 3110 Socket IC Dip24 300 3 1 U1 442 3090 IC LED Display Driver MAX7219CNG 4 1 J1 131 1X10 Connector Header Single Row Male 10 pins 5 2 LED1 LED2 412...

Page 8: ...rectifier 1N5817 T 6 3 SW1 SW2 S W3 64 1839 Switch Momentary SPST 7 1 SW4 64 1827 Switch Momentary 5mm H 8 1 J4 131 1X10S Conn Header Female Single Row 10 pins 9 1 J2 131 1X06RA Conn Header Right Ang...

Page 9: ...dware Screw Panhead 4 40 x 1 4 3 2 250 1533 Hardware Screw Panhead 4 40 x 1 8 4 2 252 440 Hardware Nut 4 40 3 5 Enclosure Parts List Clock 100 Enclosure kit P N CLK100ENC KIT ITEM QTY PART NO DESCRIPT...

Page 10: ...st important operations you will perform while assembling your kit A good solder connection will form an electrical connection between two parts such as a component lead and a circuit board foil A bad...

Page 11: ...IGITAL CLOCK MODEL CLK100 GEKCO INC Rev 1 1 11 5 Step By Step Assembly 5 1 Display Circuit Board Figure 1 Display Board Top Side Completed Assembly Figure 2 Display Board Bottom Side Completed Assembl...

Page 12: ...t Board with the bottom side facing up as shown U3 NOTCH Figure 3 Display Board Bottom Side Locate the 24 pin IC socket for U3 Place the socket on the board with the notch on the socket aligned with t...

Page 13: ...he side of the capacitor The aluminum electrolytic capacitor has the marking for a negative lead which may look like an oblong bar sometimes with a circle around it inside an arrow Be sure to install...

Page 14: ...rrectly there is a flat side on the LED housing or make sure the long lead anode is inserted in the square hole and the short lead cathode in the round hole LED1 LED Red PCB Mount LED2 LED Red PCB Mou...

Page 15: ...22 radial lead ceramic capacitor C6 10 uF radial lead electrolytic aluminum capacitor Figure 8 Main Board Top View 3 Y1 Crystal HC49 16 MHz For the next step be careful to position the end with the d...

Page 16: ...ector needs to be aligned with the silkscreen outline J1 Connector Power 2 1 mm LS1 Audio Piezo Speaker Solder the leads to the foil and cut off the excess lead lengths The next step is to install the...

Page 17: ...nductor devices Be sure they do not get damaged by static electricity Once you remove the IC from the foam pad do not let go of it or lay it down until it is in its socket Install it as follows Read a...

Page 18: ...ur during the assembly and testing of your Digital Clock Additional In Case of Difficulty information is also provided in your Operation Manual In an extreme case where you are unable to resolve a dif...

Page 19: ...he enclosure front end as shown in figure 15 Figure 15 Front Panel Attach the front panel with the bezel to the enclosure base with two 4 40 pan head screws Figure 16 Front Panel to Base Assembly Slid...

Page 20: ...BLY OPERATION MANUAL 20 REV 1 1 GEKCO INC Figure 18 Enclosure Back This completes the assembly Congratulations you have successfully completed the assembly of the unit and now you can enjoy using a cl...

Page 21: ...ent the minutes and the decrement button to decrement the minutes Once you have set the correct minutes then press the SET button again to change to the seconds setting Press the increment button to i...

Page 22: ...e AL OFF display option is shown Then press the increment button to toggle the alarm either On or Off Press the SET button to exit to the next menu option 10 6 Setting the Local Time to 12 or 24 hour...

Page 23: ...DECREMENT MINUTES SET SET UTC HOURS INCREMENT DECREMENT HOURS SET UTC ON OFF TOGGLEUTC ON OFF MENU ROUTINE SELECT SECONDS SET START INCREMENT DECREMENT TENS OF SECONDS SET SET ANY TIME SETTINGS CHANG...

Page 24: ...LOCAL BUZZER DISPLAY DRIVER MENU PLUS MINUS OPTIONAL DISPLAYBOARD MAIN BOARD Figure 20 Block Diagram The clock consists of two modules the main board and the display board The clock was designed this...

Page 25: ...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 CLK100 board lo...

Page 26: ...H PRESS YES NO MENU ROUTINE Figure 21 Software Flowchart 12 2 Firmware Design Description There are two basic modes of operation Clock Mode Menu Mode 12 2 1 Clock Mode This mode reads the real time cl...

Page 27: ...DIGITAL CLOCK MODEL CLK100 GEKCO INC Rev 1 1 27 13 PCA Pictorial Diagrams 13 1 Main Board Figure 22 Main Board Top Figure 23 Main Board Bottom...

Page 28: ...GEKCO DIGITAL CLOCK P N CLK100 ASSEMBLY OPERATION MANUAL 28 REV 1 1 GEKCO INC 13 2 Display Board Figure 24 Display Board Top Side...

Page 29: ...DIGITAL CLOCK MODEL CLK100 GEKCO INC Rev 1 1 29 Figure 25 Display Board Bottom Side...

Page 30: ...GEKCO DIGITAL CLOCK P N CLK100 ASSEMBLY OPERATION MANUAL 30 REV 1 1 GEKCO INC 14 Schematic Main Board...

Page 31: ...DIGITAL CLOCK MODEL CLK100 GEKCO INC Rev 1 1 31 15 Schematic Display Board...

Page 32: ...tch positions connections to other units operating procedures voltage readings and any other information you think might be helpful REPAIR SERVICE Service facilities are available if needed to repair...

Page 33: ...DIGITAL CLOCK MODEL CLK100 GEKCO INC Rev 1 1 33 17 Document Revision History 1 0 18 Nov 18 Initial Release 1 1 21 Jan 5 Updated with Main Board Rev B...

Reviews: