VITREVIA — COG, COB or SMD: Can You Restore a Matching Image After a Failure?
Revision: 2026-09-11
Project: ____________________
Configuration / firmware: ____________________
Operator / date: ____________________
Agreed acceptance criteria: ____________________

TEST RECORD (repeat for each check)
Requirement ID:
Preconditions:
Test file / revision:
Action:
Expected result:
Observed result:
Evidence location:
Pass / Fail / Not tested:
Deviation and owner:
Retest / closure:

Guide: https://www.vitreviadisplays.com/insights/cog-vs-cob-vs-smd-at-system-level/

REFERENCE TABLES
Question | Evidence to put in the service record
What is replaced on site? | Exact module, cabinet, display unit, receiver or power-supply part number and revision
What must be repaired elsewhere? | Documented repair route, restrictions and expected return process
What makes a spare compatible? | Mechanical, electrical, driver/receiver, firmware and optical compatibility
Where is calibration stored? | Product-specific storage, backup and restoration procedure
When is service complete? | Function restored, configuration verified and visual match accepted