Video & projection
AJA FS-HDR troubleshooting
The AJA FS-HDR problems live-event techs bring to Ask Roadie most (also called Colorfront, FS-HDR frame sync). Pick your symptom, or describe your own in plain words, and get the likeliest fix first, with the manual page when there is one.
Common FS-HDR errors & problems
What techs run into most, and what's usually behind it. The step-by-step fix for your exact unit is in Ask Roadie.
- Step-by-step fixGet the fix →
Cannot find FS-HDR on the network / need its IP address
Likely cause: DHCP-with-static-failover means the box always has a reachable address; knowing the 192.168.0.2 fallback lets a tech recover control when no DHCP is present.
- Step-by-step fixGet the fix →
Choosing the right HDR/WCG conversion LUT set
Likely cause: Matching the conversion engine to the deliverable spec (broadcaster-mandated BBC/NBCU LUTs vs.
- Step-by-step fixGet the fix →
Firmware update interrupted by power loss / unit booted the old version
Likely cause: The dual-image safe-boot design protects against bricking, so an interrupted flash is recoverable by repeating the normal update steps.
- Step-by-step fixGet the fix →
Frame sync intermittently will not lock to the input signal
Likely cause: The forced HFR sync alignment could conflict with the input timing and block lock; making it defeatable (default Off) restores reliable locking for standard single-stream use.
- Step-by-step fixGet the fix →
Front panel shows "No Input" on IN1 even though the Genlock (GEN) shows Ref
Likely cause: Genlock lock state and video-input presence are reported independently, so a locked reference does not imply a valid video input.
- Step-by-step fixGet the fix →
How to update FS-HDR firmware (web GUI procedure)
Likely cause: The two-stage upload/commit design plus a retained internal safe copy means a power glitch mid-update just boots the prior firmware, so the update is low-risk and re-runnable.
- Step-by-step fixGet the fix →
Interlaced sources with fast motion show deinterlacing artifacts
Likely cause: Aggressive motion-adaptive deinterlacing can misjudge fast motion and introduce artifacts; dialing it back reduces the adaptive processing that causes them.
- Step-by-step fixGet the fix →
No video output after a power cycle when User LUTs are loaded
Likely cause: The pre-4.3.1 boot sequence failed to reapply the stored User LUT correctly, leaving the processor with no valid output path; the v4.3.1 fix restores the LUT on boot.
- Step-by-step fixGet the fix →
Sources drift out of time / need to align multiple feeds
Likely cause: A deep frame buffer lets the box hold faster feeds until the slowest arrives; the v4.3.1 fix removes the >15-frame limitation specifically in 4K/UHD single-channel operation.
- Step-by-step fixGet the fix →
Unit will not genlock to external reference / REF LED not blue
Likely cause: An unterminated reference input floats and reads unstable; proper 75-ohm termination gives the sync circuit a clean signal to lock to.
Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.
How Ask Roadie helps with the FS-HDR
- 1. Pick the AJA FS-HDR. It's already in the list.
- 2. Describe what you're seeing. In your own words, or the error code off the screen.
- 3. Get the likeliest fix first. Steps in order, the manual page when there is one, and a note when other techs have confirmed it.
- 4. Still broken? Tap 👎 and it keeps going from where you left off.