Tp.mt5510i.pb805 Diagram ~repack~
Turn on the TV, press the Source/Input button on the remote control, and type the numeric sequence 2580 or 2080 .
Main power system bus, audio amplifier chip, T-CON power panel supply. Stable in standby and active modes. (STB) USB ports, Standby IR sensor, keypad controller. Constantly active when plugged in.
Measure the main capacitor voltage ( >300Vis greater than 300 cap V
Once stepped down by the transformer, the secondary side outputs stable direct currents to power the logic board.
"Tp.mt5510i.pb805" schematic MT5510I touch panel pinout "pb805" PCB diagram Tp.mt5510i.pb805 Diagram
Keep holding the button until the standby light starts blinking rapidly or an upgrade progress bar displays on screen. Do not interrupt this process. RT809H / RT809F ISP Recovery
Controls the LED brightness (PWM dimming).
If blown, check for a shorted bridge rectifier or a shorted main switching MOSFET.
| Section | Content | |---------|---------| | | VDD, AVDD, VDDIO, GND, decoupling caps | | Host interface | SCL, SDA (I²C), /INT, /RST | | Touch sensing | X lines (driving), Y lines (sensing) – matrix | | Test points | TP1, TP2 (for debug) | | Jumpers | For I²C address selection or boot mode | | LED indicators | If present, for touch detection or power | Turn on the TV, press the Source/Input button
When diagnosing, always start at the input (Fuse/AC) and move toward the output (LED/Mainboard connectors) following the traces on the diagram.
Feedback mechanism for voltage regulation. B. LED Driver Section (Backlight Driver)
TP.MT5510I.PB805 - ELECTRONICA BENEDICTO offers a detailed photo and pinout of the board.
The format Tp.mt5510i.pb805 suggests:
Bridge Rectifier, Switching Transformer, and PFC Circuit (if applicable).
[ AC Power Input (100V-240V) ] │ ▼ [ EMI Filter & Rectifier Circuit ] │ ▼ [ Hot Side Primary Switching (PWM) ] │ (Transformer) │ ┌────────┴────────────────────────────────────────┐ ▼ ▼ [ Secondary Rectifier (12V Main Rail) ] [ Backlight Boost Circuit ] │ │ ├────────────────────────┐ ▼ ▼ ▼ [ LED Backlight Output ] [ 5V Standby Regulator ] [ 1.1V / 1.5V / 3.3V ] (To Screen Panel LEDs) │ [ SoC Power Rails ] ▼ │ [ Main CPU / Flash ] ◄─────────┘ │ ▼ [ LVDS Output to Panel ] Key Circuit Sections and Diagnostic Test Points
The board typically runs on and is optimized for Full HD (1920x1080) panel resolutions. CPU : Quad-core Mediatek (often identified as MT5659QHMT). Memory : 1GB RAM and 8GB EMMC Storage. Power Supply : Integrated power module with a 45W rating.
⚠️ : Always ensure any downloaded firmware or diagram matches your exact board revision and panel model. Incorrect firmware can cause image distortion or permanent board damage. (STB) USB ports, Standby IR sensor, keypad controller