Restoration and validation workflow for monochrome and color text-era adapters, including monitor timing and character ROM behavior.

Adapter Modes

MDA, Hercules-compatible, CGA text and graphics

Output Paths

TTL monochrome, composite, RGBI output checks

Clock Profiles

14.31818MHz domain checks and divider validation

ROM Handling

Character ROM preservation and checksum workflow

Display Validation

Geometry, sync, and phosphor persistence tests

Field Scope

Pre-286 display stack bring-up and troubleshooting