Video & projection
AJA FiDO fiber converters troubleshooting
The AJA FiDO fiber converters problems live-event techs bring to Ask Roadie most (also called FiDO, FiDO-2R, FiDO-4T, FiDO-TR). 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 FiDO fiber converters 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.
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Can I mix a 12G FiDO transmitter with a 3G FiDO receiver (or vice versa)?
Likely cause: The reclocker and optics in each generation are rated to a maximum SDI bit rate; the slowest device in the chain sets the ceiling.
- Step-by-step fixGet the fix →
How do I update FiDO firmware or change its settings?
Likely cause: AJA splits the converter line by generation: the passive original FiDO has no firmware/USB, while the 12G Mini-Converters expose USB + Mini-Config for parameter control and firmware loads.
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Does FiDO reclock the signal, and what rates?
Likely cause: Reclocking regenerates the signal, so a FiDO pair can rescue marginal SDI as well as extend it over fiber.
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FiDO 12G series capabilities (4K)
Likely cause: Picking the 12G line avoids trying to push 4K60 through a 3G-only converter, which will not lock.
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FiDO connector types (LC vs ST vs SC)
Likely cause: Physical connector families are not interchangeable; matching them removes a whole class of no-link causes.
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FiDO power requirements and supply
Likely cause: Wide-input DC plus the specific AJA brick model means a lost or wrong supply is a fast thing to rule out.
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Which FiDO model do I pull for a job?
Likely cause: FiDO is a point-to-point pair; direction, channel count, and fiber type must all match end to end.
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Maximum fiber run distance for FiDO
Likely cause: MM has far less reach than SM; distance at or beyond the rated limit is a common hidden cause of flaky links.
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Fiber eye-safety with FiDO transmitters
Likely cause: Even Class 1 optics warrant not looking into the beam; a habit that also keeps ferrules clean.
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Remote monitoring of FiDO over a show
Likely cause: DashBoard gives centralized signal-presence and health monitoring you cannot get from the standalone units' LEDs alone.
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Using FiDO to kill ground loops / hum bars
Likely cause: Optical isolation removes the shared ground that causes the loop, without touching mains grounding.
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What do the FiDO LEDs mean?
Likely cause: The LED pattern isolates whether the fault is on the SDI feed, the fiber path, or the far converter.
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 FiDO fiber converters
- 1. Pick the AJA FiDO fiber converters. 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.
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