Setting Up an LED Screen for Events: From Load-In to Showtime
The complete professional workflow for setting up an LED screen at an event. Covers pre-show planning, physical build, power and data connections, NovaLCT configuration, show day checks, and pack-down.
Setting up an LED screen for an event follows a defined professional workflow. The sequence matters — skip steps or do them out of order and you create problems that are hard to diagnose under pressure. This guide gives you the full professional workflow from load-in to showtime, covering the physical build, power and data connections, NovaLCT configuration, and the pre-show checks that separate experienced crews from beginners.
Pre-Event Planning (Before Load-In)
Professional LED screen setup starts days before load-in. Arriving at a venue without this preparation is how crews end up working overnight to fix problems that should have been caught beforehand.
- Confirm screen dimensions and layout — how many cabinets wide and tall, which ground support or rigging system
- Calculate pixel count and verify your Novastar controller has sufficient output capacity
- Set PC output resolution in advance — configure your display settings before arriving so you're not doing it in a dark venue
- Load your saved .scfg file onto a USB stick as backup — don't rely solely on laptop storage at a live event
- Test the complete system end-to-end at your warehouse or base before transport
- Count and check all cables — data cables (Cat6), power leads (Powercon), signal cable (HDMI/DisplayPort from PC to sending device)
Physical Build: The Correct Sequence
Build order matters for both efficiency and safety. The professional sequence:
- Set up and level the ground support structure (or confirm rigging points are rated for the load)
- Unpack cabinets and lay them out in the build order you've planned — don't unpack randomly
- Assemble the screen starting from the bottom row, left to right, locking each cabinet before moving to the next
- As you build upward, keep the screen plumb (vertical) — a slight lean at row 1 becomes significant lean at row 6
- Attach power connectors as you go — Powercon connectors are easier to connect before the screen goes to full height
- Run data cables AFTER the physical build is complete — running cables during build leads to snagged or trapped cables
- Attach the Novastar sending device to the structure or table in its final operating position before connecting cables
Power Connection Sequence
Power connections must be made in the correct order to protect the Novastar sending device and the LED cabinets.
- Ensure all MCBs (circuit breakers) are in the OFF position before connecting any Powercon cables
- Connect all Powercon cables to the cabinets — these are passive connectors and can be connected without risk
- Connect the Novastar sending device to its power supply (this can be done at any time before switching on)
- Turn on the Novastar sending device first — always power the sending device before the LED cabinets
- Turn on the LED cabinets by switching the MCBs to ON — cabinets will briefly flash all LEDs at power-on (this is normal and confirms power is reaching them)
- Confirm power indicator LEDs are lit on the back of each cabinet
Data Cabling
With power on and the physical build complete, run your data cables in the daisy chain sequence you planned before load-in.
- Connect Cat6 from Novastar Output 1 to the first cabinet's IN port
- Continue the chain — Cabinet 1 OUT → Cabinet 2 IN, and so on through each row
- Use S-curve routing (right to left on even rows) or straight routing — whichever you configured in NovaLCT
- Label any wrap cables (end-of-row to start-of-next-row connections) with tape so they're easy to identify
- Leave the last cabinet's OUT port unconnected
- For screens requiring a second output, start a new chain from Novastar Output 2
NovaLCT Configuration
- Connect your PC to the Novastar sending device via USB (for MCTRL) or Ethernet/USB (for VX series)
- Launch NovaLCT — confirm the sending device is detected in the Hardware Connection panel
- Check the receiving card count on each output — should match your cabinet count per output
- Load your pre-saved .scfg configuration: File → Open → select your file
- Send the configuration to the hardware: Screen Configuration → Send to Hardware
- Display a test pattern (white full-screen) and walk the screen to check for dark cabinets, seam issues, or colour problems
- Adjust brightness to the appropriate level for the venue and ambient light
- Play your first piece of content and confirm image position, scale, and colour are correct
Pre-Show Checks (30 Minutes Before Doors)
| Check | What to Verify | Action if Wrong |
|---|---|---|
| All cabinets lit | No dark areas anywhere on screen | Check data cable to first dark cabinet; re-seat if needed |
| Correct image position | Content fills the screen exactly — no cropping or black borders | Verify PC output resolution matches screen pixel count |
| No flickering | Stable, consistent image with no visible flicker | Check all Cat6 connections; wiggle each to find the loose one |
| Brightness appropriate | Content is clearly visible from the back row | Adjust NovaLCT brightness slider to match ambient conditions |
| No colour anomalies | White appears white across all cabinets | Check calibration; adjust per-cabinet colour if seams are visible |
| Audio sync (if applicable) | Audio matches video without noticeable delay | Adjust audio delay in your playback system if needed |
| Backup plan confirmed | USB with .scfg file is ready; spare cables accessible | Brief the operator on where backup equipment is |
Common Show Day Problems and Fast Fixes
| Problem | Most Likely Cause | Fastest Fix |
|---|---|---|
| Screen goes dark mid-show | Loose Cat6 — single cabinet creates chain break | Wiggle all data cables at back of screen; find and reseat loose connection |
| PC display goes to screensaver / sleep | Windows power management | Set PC power plan to High Performance; disable all sleep settings before every event |
| Wrong content on screen | PC extended display is on wrong monitor | Check Windows Display Settings — the Novastar output must be the correct extended display |
| Novastar disconnects from NovaLCT | USB cable too long or loose | Use a USB cable under 3m; check connection at both ends |
| Brightness changed unexpectedly | Auto-brightness feature triggered, or someone adjusted NovaLCT | Check NovaLCT brightness slider; disable auto-brightness for events |
Pack-Down: How to Disassemble Without Damage
- Power down in reverse order: switch off MCBs first, then power down the Novastar sending device
- Remove data cables before power cables — less risk of accidental energisation
- Remove power cables and coil them carefully — damaged Powercon boots are a common and expensive problem
- Disassemble the screen from the top down — removing upper rows first
- Lay cabinets face-down on soft padding if available, or face-up if the LED surface is at risk
- Check each cabinet for damage (cracked modules, damaged ports) before packing into cases
- Pack data cables separately and count them — losing a single Cat6 between events is surprisingly common
Pre-Show Checklists Included in the Full Guide
The complete guide includes fillable pre-show, during-show, and post-show checklists — professionally formatted for real event use. Print them and use them on every show.
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