BDL4550D Panel Replacement Procedure

BDL4550D Panel Replacement Procedure

Applies To

  1. Philips Professional Display (BDL series) with panel fault symptoms

  2. Symptom: Horizontal line, flashing colours, unstable panel drive behaviour

  3. Typical outcome: Panel replacement required

Resolution

  1. Replace the panel (screen)

Before You Start

  1. Power the display off, unplug from mains, and allow it to cool down

  2. Prepare a clean work surface and appropriate tools

  3. Ensure the technician has reviewed the reference videos before attending site

  4. Confirm site busy hours and pre-arrange attendance time (do not attend unannounced)

Critical Documentation Requirement (Must Do)

  1. After removing the rear cover, take clear photos of the internal layout

  2. Photos must show component positions and cable connection routing clearly

  3. Purpose: to ensure correct reassembly on the new panel and avoid cable misrouting

Additional Photo Requirements (Recommended by Philips)

  1. Take detailed photos of the internal connections before disconnecting anything

  2. Capture photos of the front bezel area after removal (if applicable for the model/service method)

  3. Organise screws by type and position, keep different screw types separated and labelled

Panel Replacement Procedure (High Level SOP)

  1. Ensure the display is powered off, unplugged, and cooled

  2. Remove the back cover carefully (avoid damaging internal cables)

  3. Record internal layout with photos before disconnecting any cables

  4. Disconnect internal components as required (power board, main board, other PCBs)

  5. Remove the existing panel from mounting points/brackets carefully

  6. Align and install the new panel using original screws and mounting points

  7. Reconnect all internal components, following the recorded layout photos

  8. Refit the back cover, confirm no cables are pinched

  9. Power on and verify the fault is resolved

  10. Apply firmware updates or configuration if required by the job scope

Reference Videos for Technicians:

Permanent Internal Download Location (Westan SharePoint)

  1. Download videos and job guidance from:
    https://westanonline.sharepoint.com/:f:/s/Support/IgAElKdV9obISrrEOSq9r6TyAXMeX6hPz5pjpPLH25iXZbE?e=dIt1ab

Service Notes

  1. Handle the Philips Device (PD) carefully to prevent damage during removal or installation

  2. If water damage is detected during attendance, take photos and advise warranty may not apply, then unplug for safety

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