No video
Separate "no video" from "no boot." A console with a solid power light but a black screen may be running fine while only the display path has failed. Confirm the fan spins and the light is steady before assuming a dead board.
Common causes
No-video faults usually come from the AV cable, the display, the selected video mode, or a genuine boot failure. The Xbox outputs through a proprietary AV connector, and the cable type must match what the television expects.
- Check the cable and input. Confirm the AV cable is fully seated and the TV is set to the correct input. Try a different cable if possible.
- Test display compatibility. Some modern TVs reject the Xbox standard-definition signal. Try another display or a known-good standard-def set.
- Consider video mode. A console set to a video mode the TV cannot show outputs a blank screen. A different cable type can change the negotiated mode.
- Rule out boot failure. If the light flashes or the fan behaves oddly, treat it as a no-boot fault instead and inspect the board.
If the board is suspect
Persistent no video with normal power often traces back to clock capacitor corrosion or a failing GPU connection. Inspect and clean the board, then retest. troubleshooting video