| Device Type | Sample Codes | |-------------|---------------| | | 12051, 10812, 10030, 10056 | | LG TV | 10178, 11423, 10030 | | Sony TV | 10000, 10834, 11000 | | Vizio TV | 11758, 10864, 10178 | | Roku TV | 13515, 12434 | | Apple TV | 11892, 11756 | | Soundbar (general) | 12100, 10302, 10043 |
| Code | Meaning | Solution | |------|---------|----------| | / PROTECT | Amplifier short circuit | Check speaker wires for frayed ends | | E02 | Overheating | Improve ventilation; clean dust filters | | E03 | DC offset on output | Internal amp failure – needs repair | | E04 | No HDMI signal | Change HDMI cable; reset EDID | | E05 | USB overcurrent | Remove USB device; check for short | | F01 | Firmware update failed | Retry update via USB (FAT32 format) | | F02 | Factory reset in progress | Wait; do not unplug | | CONNECT ERR | Bluetooth pairing failed | Delete device from memory and re-pair | | MUTE ERR | Volume control stuck | Clean volume encoder; replace if needed | 3. Legacy RCA Monitor & Computer Display Codes Vintage RCA monitors (CGA, EGA, and early VGA) used beep codes or status LEDs: rca codes list
| Code | Diagnosis | |------|-----------| | 1 beep + green LED | Normal POST | | 2 beeps + orange LED | Horizontal sync missing | | 3 beeps + blinking green | Vertical sync failure | | Continuous beep | No video input / cable disconnected | | LED off, no beep | Dead power supply or fuse blown | RCA is famous for its universal remotes. Here are common setup codes for popular TV brands (enter while holding the device button): rca codes list