is a blinking red LED, which typically indicates a . Even after replacing the LED strips, the error may remain stored in the memory, preventing the TV from turning on.
| Section | Key Information Provided | |---------|--------------------------| | | Exact panel type, backlight type (LED), power consumption, input/output ratings, dimensions, weight. | | Chassis & Firmware | Chassis platform (e.g., 1AV or similar), firmware version control, update procedures. | | Disassembly Instructions | Step-by-step sequence for removing bezel, panel, main board, power supply, T-con board, speakers, and LED strips. | | Block Diagram | Signal flow from tuner/inputs to panel (video) and amplifier (audio). | | Schematic Diagrams | Detailed circuit diagrams for Power Supply Unit (PSU), Main Board (video/audio processing), Inverter/LED driver, T-con (timing control). | | Voltage & Waveform Charts | Critical test points (e.g., STB, 5V, 12V, 24V, PFC, PWM waveforms). | | Troubleshooting Flowcharts | Decision trees for: No power, no backlight, no picture (but sound), no sound, distorted image, remote not working. | | Self-Diagnosis & Error Codes | LED blink codes, forced startup modes, bus (I²C) error detection. | | Adjustment Procedures | Entering service mode (typically using remote key sequences), resetting panel drive parameters, white balance/color temperature adjustment, EEPROM initialization. | | Spare Parts List | Official part numbers for: Main board (e.g., QPWBXC...), Power supply board (e.g., DPS-...), LED light strips (specific length and LED count), remote control, IR sensor. | | Safety Precautions | Discharging high-voltage capacitors (LED driver can hold charge), handling panel (fragile), ESD protection. |
The manual provides a code (often Input + 2580 or Menu + 1147 on the remote) to enter the Service Menu.
On page 2 of the service menu, select "FACTORY INIT" to restore the TV to its original software state.