DELL
DELL LCD Ribbon Cable 14" K19NX Latitude 5420 5421 5430 5431 Precision 3470
Genuine Dell OEM 14-inch LCD ribbon cable for Latitude 5420, 5421, 5430, 5431 and Precision 3470 non-touch displays with IR camera and proximity sensor
- Typelaptop-computer-replacement-parts
- Genuine Dell OEM part ensures exact fit
- 14 inch ribbon cable designed for non-touch displays
- Supports optional IR camera with proximity sensor
- Compatible with Latitude 5420 5421 5430 5431 Precision 3470
- Dell part number K19NX matches service documentation
Genuine Dell OEM replacement cable
This genuine Dell OEM LCD ribbon cable carries part number K19NX and fits Latitude 5420, 5421, 5430, 5431 and Precision 3470 models with 14" non-touch screens. It connects the display panel to the mainboard on laptops equipped with the optional IR camera and proximity sensor. Buyers repairing a different screen size or a touchscreen model cannot use this part.
Passive ribbon carries only signal
The flat flexible cable draws negligible power and produces no heat or audible noise during normal operation. It requires no active cooling and adds no measurable thermal load to the system. Installation simply routes the ribbon through the hinge assembly and seats the connectors at each end.
Compatibility limited to listed 14" non-touch IR
The cable matches Dell part numbers GDF40_EDP_CABLE_ASSY_IR_W_P_NTS, DC02C00RI00 and DC02C00R100 for the specified Latitude and Precision chassis. Systems with touchscreen panels or without the IR proximity sensor use a different ribbon and will not accept this cable.
Highlights
- Genuine Dell OEM part ensures exact fit
- 14 inch ribbon cable designed for non-touch displays
- Supports optional IR camera with proximity sensor
- Compatible with Latitude 5420 5421 5430 5431 Precision 3470
- Dell part number K19NX matches service documentation
Specifications
| Brand | Dell |
|---|---|
| Type | laptop-computer-replacement-parts |
Questions about this item
How is the K19NX ribbon cable installed, and which step is often missed?
Route the flat cable through the hinge channel, seat the ZIF connectors on the display panel and motherboard, then lock the retaining flaps before reassembling the bezel.
What maintenance or replacement will the K19NX cable need later?
No scheduled maintenance is required; the cable is replaced only if hinge fatigue causes conductor breaks or the IR proximity sensor stops responding.
What limit appears first on the K19NX cable under sustained daily opening and closing?
Repeated flexing at the hinge bend radius eventually fractures the internal traces, causing intermittent video or loss of the IR proximity function.
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