ELECRAFT K3S Installation Instructions Manual

21, 21 Circuit Description The KPA3A option consists of three subassemblies: the KPA3A power amplifier, a fan panel to provide cooling, and the KPAIO3A interface module. KPAIO3A The KPAIO3A acts as an interface between the RF board and the KPA3A power amplifier. It includes a rela…

20, 20 Hold the top cover above the K3S/K3, route the speaker wire under the stiffener bar and plug it into P25 on the KIO3A/KIO3 board at the left rear as shown in Figure 20. Figure 20. Connecting Speaker Cable. Position the top cover on the K3S/K3. Note that the tab on the back cent…

4, 4 Preventing Electrostatic Discharge Damage Sensitive components may be damaged by Electrostatic Discharge (ESD) simply by touching them or a circuit board containing them unless you take specific steps to prevent such damage. Damage may occur with static discharges far too littl…

9, 9 K3S/K3 KIT BUILDERS: If you are installing the KPA3A as part of the initial K3S/K3 kit assembly, skip the following steps and resume with Installing the KPAIO3A Interface Module on page 12 Remove the stiffener bar that runs from side to side across the top of the chassis. This is the ba…

2, 2 Contents Introduction ............................................................................................................................................... 3 Customer Service and Support ................................................................................…

15, ELECRAFT K3S 15 Position the fan panel near the rear opening and plug the fan leads into the connectors in the upper right corner of the KPAIO3 board as shown in Figure 14. Be sure to orient the connectors so the red lead is to the left as indicated on the board. If the connectors don’t want t…