Published 6 Sep 2022

LG LKD 2NS

\\ {{ :electronic:equipment:phone:a.jpg?200|LKD 2NS overview}} ===== Overview ===== \\ ===== Hardware description ===== ====Components==== * National Semiconductor TP3057 ‘‘Enhanced’’ Serial Interface CODEC/Filter * 74HC123D Dual retriggerable monostable multivibrator * ON TL494CD 40V, 0.2A 300KHz Pulse Width Modulation controller * QFR EUCA0000301 F6N33-000 0132 Rev. 1 * 1458 Dual operational amplifier ===== Examples ===== |{{:electronic:equipment:phone:a.jpg?800|LKD 2NS top}}\\ {{:electronic:equipment:phone:dsc_1724a.jpg?600|LKD 2NS front}} {{:electronic:equipment:phone:dsc_1725a.jpg?600|LKD 2NS back}} ---- ===== Tear down ===== {{:electronic:equipment:phone:dsc_1726a.jpg?800|LKD 2NS interior}} {{:electronic:equipment:phone:p4137542a.jpg?600|LKD 2NS interior}} {{:electronic:equipment:phone:p4137543a.jpg?600|LKD 2NS interior}} {{:electronic:equipment:phone:p4137545a.jpg?400|LKD 2NS keyboard top}}\\ {{:electronic:equipment:phone:p4137546a.jpg?400|LKD 2NS keyboard front}}\\ {{:electronic:equipment:phone:p4137544a.jpg?400|LKD 2NS keyboard back}} {{:electronic:equipment:phone:p4137538a.jpg?400|LKD 2NS PCB front}}\\ {{:electronic:equipment:phone:p4137539a.jpg?400|LKD 2NS PCB back}} ===== References and Additional Resources =====

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