My Projects

You are here: start » electronic » equipment » phone » lkd2ns

My Projects

User Tools

Site Tools

You are here: start » electronic » equipment » phone » lkd2ns

Published 6 Sep 2022

LG LKD 2NS


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

LKD 2NS front LKD 2NS back

Tear down

LKD 2NS interior LKD 2NS interior LKD 2NS interior

LKD 2NS keyboard top
LKD 2NS keyboard front
LKD 2NS keyboard back

LKD 2NS PCB front
LKD 2NS PCB back

References and Additional Resources

If any referenced page no longer exists, try looking for its URL on http://archive.org.




Page Tools

electronic/equipment/phone/lkd2ns.txt · Last modified: 2022/09/23 18:20 by tony
CC Attribution-Share Alike 3.0 Unported Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 3.0 Unported