Dell Latitude E6420 XFR (Early 2011) - Manual (Page 44)

Dell ™ Latitude™ E6420 XFR Service Manual
Page 44
7. Disconnect the contactless smartcard cable, LED board cable, touchpad cable, and FPR cable (optional)
accessible through access panels.
1 LED Board (JLED1) 2 Touchpad (JTP1)
3 Contactless Smartcard (JCS1) 4 Keyboard (JKB1)
5 Media Board (JMEDIA1)
6 Finger Print Reader (JBIC1)