Video & projection
Decimator MD-Cross V2 troubleshooting
The Decimator MD-Cross V2 problems live-event techs bring to Ask Roadie most (also called Decimator Cross V2, MD Cross V2, MDCROSS). 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 MD-Cross V2 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 →
Can't connect to the unit over USB from the control app
Likely cause: The control panel talks to the device only over USB with the matching app version; a stale app or a second open session blocks the connection.
- Step-by-step fixGet the fix →
Downstream SDI device won't accept the output (3G source)
Likely cause: 3G-SDI 1080p50/60 is carried as either Level A (single stream) or Level B (dual-link mapped).
- Step-by-step fixGet the fix →
Image is mirrored or upside-down
Likely cause: The V2 scaler includes independent horizontal and vertical flip, commonly needed for periscope/mirror rigs or inverted-mounted cameras.
- Step-by-step fixGet the fix →
Need to convert between 59.94Hz and 50Hz (or other frame rates)
Likely cause: The V2 has a dedicated frame-rate converter (not just a scaler), enabling standards conversion between NTSC-family and PAL-family rates that a scale-only device cannot do.
- Step-by-step fixGet the fix →
No audio or wrong audio channels on the output
Likely cause: The unit passes/embeds up to 16 channels; the metering overlay is the fastest field diagnostic to confirm whether audio is present on input vs lost in routing.
- Step-by-step fixGet the fix →
Not sure whether the fault is the converter, the source, or the cable
Likely cause: A self-generated reference pattern splits the signal chain in half instantly, the fastest way to localise a fault in the field.
- Step-by-step fixGet the fix →
Output drifts / won't genlock to house sync
Likely cause: Genlocking the DUC/scaler output to house reference keeps the converter's output timing aligned with the rest of the facility so downstream switchers don't glitch on cut.
- Step-by-step fixGet the fix →
Unit is completely dead / no power LED
Likely cause: Wide-range 5-32V input tolerates many field PSUs, but reversed polarity or a loose locking barrel is the usual cause of a no-power unit.
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 MD-Cross V2
- 1. Pick the Decimator MD-Cross V2. 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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