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DIGITAL CLOCK MODEL CLK036

 

GEKCO INC.  

 

 

 

Rev 1.0  

 

 

 

 

11

 

fully seated in their holes, solder the rest of the 
pins to the foil. 

(   ) 

RN1: 10 k

 103 resistor pack.  

NOTE:  When you install the diode, be sure to 
orient  the  diode  correctly.  Always  match  the 
band  on  the  diode  with  the  band  mark  on  the 
circuit board. The circuit will not work properly if 
a diode is installed backwards. 

 (   ) 

D1: 1N5817 schottky diode 

When  installing the IC socket next, be sure to 
align the notch on the socket with the notch on 
the PCB silkscreen. 

(   )  

X1: 28 pin DIP socket 

 

 

Figure 5: Main Board Top View 4 

(   )  

SW1: momentary right angle switch 

(   )  

SW2: momentary right angle switch 

(   )  

SW3: momentary right angle switch 

(   )  

SW4: momentary switch 

 (   )  

J2: Connector Header Male 6 pin right 

angle mount 

(   )  

J3: Connector Header Male 5 pin right 

angle mount 

In the next step, solder one pin and re-align the 
connector if necessary and then solder the rest 
of the pins. The connector 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  mating 
connectors between the display board (J1) and 
the main board (J5).  

Open  the  display  board  parts  kit  and  get  the 
following parts: 

Quantity 2 of:  
M3 x 12 mm nylon standoffs 
 
Quantity 4 of: 
M3 x 6 mm nylon screws 
 
The display board 

The display board connector  
J1: Connector header male 5 pin 

 

The main board connector 
J5: Connector Header Female 5 pin 
 

Refer to figure 10 and 11 for the next steps 

Mount two M3 x 12 mm nylon standoffs with 
two M3 x 6 mm nylon screws on the main 
board as shown. 

(2) M3x12 
mm nylon 

standoff

 

 

Figure 6: Main board with standoffs 

Insert the 5 pin female connector into the main 
board at J5. 

Identify the long pins on the display board 5 pin 
male connector J1 and insert into or mate with 
J5 the 5 pin female connector. 

Place  the  display  board  onto  the  two  M3  x 12 
mm  nylon  standoffs,  with  the  5  pin  male 
connector  J5  inserted  into  J1  on  the  display 
board and insert two M3 x 6 mm nylon screws 
as shown. 

Summary of Contents for CLK036

Page 1: ...SW Cypress Ln McMinnville OR 97128 503 472 4770 P N 595 324 REV 1 0 Copyright 2018 GEKCO Inc All Rights Reserved Printed in the United States of America c GEKCO DIGITAL CLOCK MODEL CLK036 ASSEMBLY OP...

Page 2: ...This page is intentionally left blank...

Page 3: ...2 ASSEMBLY 9 4 3 SOLDERING 9 5 STEP BY STEP ASSEMBLY 10 5 1 MAIN CIRCUIT BOARD 10 6 INITIAL TESTS 12 7 FINAL TESTS 13 8 IN CASE OF DIFFICULTY 13 9 FINAL PCA ASSEMBLY 13 10 FINAL ASSEMBLY 13 11 THEORY...

Page 4: ...URE 3 MAIN BOARD TOP VIEW 2 10 FIGURE 4 MAIN BOARD TOP VIEW 3 10 FIGURE 5 MAIN BOARD TOP VIEW 4 11 FIGURE 6 MAIN BOARD WITH STANDOFFS 11 FIGURE 7 MAIN AND DISPLAY BOARD INTERFACE CONNECTOR MOUNTING 12...

Page 5: ...in electronics can be successful but the more experienced builder can skip any unnecessary information Also this design is fully open source for both the hardware and firmware There are full schemati...

Page 6: ...avoid 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 DBR836 KIT Clock Display Board PCA parts ki...

Page 7: ...20 104 Cap mono Cer 50v radial lead 0 1UF 2 2 C1 C2 21 220 Cap mono Cer COG radial lead 22pF 100v 3 1 C3 26 102 Cap elect alum radial lead 10uF 16v 4 1 Y1 404 160 Crystal HC49 16 00 MHz 5 1 D1 55 62...

Page 8: ...DIGITAL CLOCK P N CLK036 ASSEMBLY OPERATION MANUAL 6 REV 1 0 GEKCO INC 15 1 LS1 220 1420 Audio Piezo Transducer 30V 16 1 81 180912C Printed Circuit Board Main Board 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1...

Page 9: ...LK036HDW KIT ITEM QTY PART NO DESCRIPTION 1 2 255 25511 Hardware Standoff Nylon M3 x 12 mm 2 2 255 29346 Hardware Screw Nylon M3 x 0 50 mm Thread 16mm White 3 2 255 29347 Hardware Screw Nylon M3 x 0 5...

Page 10: ...KIT ITEM QTY PART NO DESCRIPTION 1 1 86 18111901 Front Panel Acrylic 3mm Transparent Red 2 1 86 18111902 Back Panel Acrylic 3mm Clear 3 1 86 18111903 Top Panel Acrylic 3mm Clear 4 1 86 18111904 Botto...

Page 11: ...rations 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 solder connecti...

Page 12: ...3 Main Board Top View 2 C1 22 pF 22 radial lead ceramic capacitor C2 22 pF 22 radial lead ceramic capacitor In the next step be sure to observe the correct polarity as noted before and lay the capacit...

Page 13: ...e 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 mating connecto...

Page 14: ...llowing IC s on the main circuit board CAUTION Integrated circuits IC s are complex electrical devices that perform many complicated operations in a circuit These devices can be damaged during install...

Page 15: ...ority of kits that fail are due to poor solder connections Therefore you can eliminate many difficulties by carefully inspecting each connection to make sure it is soldered as described in the solder...

Page 16: ...of the enclosure onto the main board assembly Make sure the switches properly align with the top piece of the enclosure Figure 10 Enclosure Back with Top Add the main board assembly with the top panel...

Page 17: ...ing 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 you have successfully completed the assembl...

Page 18: ...display boards which could vary in size If may be helpful to review the block diagram and schematics while reading the circuit descriptions 11 1 Main Board Circuit Description The main circuit board h...

Page 19: ...tor J2 is the programming interface connector This allows the firmware to be modified and the ability to reprogram the microcontroller The CLK036 main board looks just like a Arduino Uno and can use t...

Page 20: ...EMENT MINUTES INCREMENT SECONDS MENU MENU MENU MENU SET MENU SET MENU PLUS MENU SET MENU LOOP SELECT HOURS SELECT MINUTES SET PLUS MENU PLUS ALARM LOOP RETURN TO FUNCTION LOOP INCREMENT HOURS INCREMEN...

Page 21: ...DIGITAL CLOCK MODEL CLK036 GEKCO INC Rev 1 0 19 12 2 Firmware Design Description 13 PCA Pictorial Diagrams 13 1 Main Board...

Page 22: ...GEKCO DIGITAL CLOCK P N CLK036 ASSEMBLY OPERATION MANUAL 20 REV 1 0 GEKCO INC 13 2 Display Board Figure 11 Display Board Top Side...

Page 23: ...DIGITAL CLOCK MODEL CLK036 GEKCO INC Rev 1 0 21 Figure 12 Display Board Bottom Side...

Page 24: ...GEKCO DIGITAL CLOCK P N CLK036 ASSEMBLY OPERATION MANUAL 22 REV 1 0 GEKCO INC 14 Schematic Main Board...

Page 25: ...DIGITAL CLOCK MODEL CLK036 GEKCO INC Rev 1 0 23 15 Schematic Display Board...

Page 26: ...GEKCO DIGITAL CLOCK P N CLK036 ASSEMBLY OPERATION MANUAL 24 REV 1 0 GEKCO INC 16 Document Revision History 1 0 3 Dec 18 Initial Release...

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