CLK036GEKCO INC. Rev 1.0 31. IntroductionThe Digital Clock Model CLK056 was designed to fill the need for an accurate digital clock with thecapabilities of two time zone displays in a compact format.This clock has 6 digits for hours, minutes and seconds and the hours display can alternate betweentwo 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 withno surface mount parts.This step by step manual will guide you through the process to complete the assembly and testing ofthe model CLK056 Digital Clock. The manual was designed so a total beginner in electronics can besuccessful but the more experienced builder can skip any unnecessary information. Also this design isfully open source for both the hardware and firmware. There are full schematics and pictorial diagramsof the hardware, also there are links and flowcharts of the firmware microcontroller code.2. Operational SummaryThe Model CLK036 has 8 digits of seven segment displays to display time zone one HOURS (UTC),time zone 2 HOURS (local), MINUTES and SECONDS. The eight digit display provides two time zones Hours, Hours, Minutes and Seconds The display LEDs are high contrast red, 0.36 inch character height Adjustable display brightness Local hours can be set for 12 or 24 hour mode Very accurate Real Time Clock (RTC) with battery backup Powered by a U.L. listed 5 VDC wall adapter Size: 4.16 x 2.35 x 1.46 inches (Width x Height x Depth) Weight: 0.30 pounds