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Motherboard Model: LG 32C3470‑TA
Device: 32″ LG LED TV
Type: Original OEM mainboard (application/main control board)
Condition: Usually sourced used/recovered from working TVs and factory-tested for full functionality
Role: Hosts the TV’s core processing components:
Hosts system-on-chip/ SoC for UI, video decoding, and audio control
Contains RAM, flash storage (firmware), and I/O interfaces: HDMI, USB, tuner, LVDS panel connections
Compatibility: Fits LG 32″ series TVs with similar chassis/power structure—often cross-compatible with LB35B/LC35B/LL35B models
Direct replacement board for internal TV logic and connectivity
Connectors include LVDS ribbon to the LCD panel, power from PSU, tuner coax, HDMI, USB, audio out, and possibly Ethernet/Wi‑Fi module
Software (webOS/firmware) is usually preinstalled, but re-flashing via LG service tools might be required for full compatibility
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System-on-Chip (SoC) or video/audio processing IC (often under a heatsink).
Memory modules (Flash + DRAM) to store firmware and settings.
HDMI/USB port controllers, digital tuners, and audio amplifiers.
Connectors to power board, T-Con board, and LCD panel.
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The LG 32LB550A is a 32-inch HD Ready LED TV designed to deliver crisp visuals, wide viewing angles, and user-friendly features. Built with an IPS panel, it ensures clear and vibrant picture quality from almost any angle. The Triple XD Engine enhances color, contrast, and clarity, while the Motion Clarity Index (MCI) of 100 Hz reduces blur during fast-moving scenes, making it ideal for sports and movies.
This model supports USB Movie playback with DivX HD, allowing you to watch videos directly from a USB drive. With 2 HDMI ports, it easily connects to set-top boxes, gaming consoles, or media players. The 10W stereo speakers with Dolby Digital decoding provide balanced audio suitable for small to medium rooms.
Eco-conscious users will appreciate features like Smart Energy Saving and Motion Eye Care, which adjust brightness and reduce power usage.
The LG 32LF513A is a 32-inch HD Ready LED television that utilizes the EAX66783404 motherboard (main board) for its operations. This board is responsible for processing video and audio signals, managing inputs, and controlling the overall functionality of the TV. It is commonly used in LG’s 32-inch LED TV models.
Key Features:
Display: HD Ready (1366 x 768 resolution)
Audio: Dolby Digital Decoder with 10W total speaker output
Connectivity: 1 HDMI port, 1 USB port, Composite video input, RF input
Ports: Headphone out, Audio out
Power Supply: AC 100 – 240V, 50 – 60Hz
Additional Features:
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The LG 42L5700-TA motherboard is typically found in certain LG flat-panel televisions, specifically part of their 42-inch model lineup. It handles the TV’s core functions, such as video processing, signal input/output, audio output, and power management. This motherboard integrates various components like the main processor (CPU), graphics processor (GPU), memory, input/output ports, and connectors for peripheral devices.
It ensures the smooth operation of the TV by managing the display panel, sound systems, and network connectivity, providing HDMI ports, USB ports, and sometimes Wi-Fi or Bluetooth connectivity
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LG 43U14651V Motherboard – Short Description:
The motherboard in the LG 43U14651V TV integrates the TV’s core functionalities, including video and audio processing, input/output management (HDMI, USB, etc.), Smart TV features, and signal decoding. It houses the CPU, memory, tuner circuits, and firmware that control the display panel and user interface. This board also facilitates network connectivity and coordinates communication between other internal components such as the power board and display panel.
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The LG 43L5550 motherboard is the main circuit board used in the LG 43L5550 43-inch LED TV. It controls key functions including:
Video processing
Audio output
Signal input handling (HDMI, USB, AV)
Power distribution
Smart TV features (if applicable)
This board typically includes ports like HDMI, USB, and audio/video interfaces, and is essential for the TV’s operation. If malfunctioning, it can cause issues like no power, no display, or input failures.
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The LG 43UM7300PTA motherboard is the main circuit board used in the LG 43UM7300PTA smart TV model. It manages all the TV’s core functions, including processing video and audio signals, handling smart TV features, connecting input/output ports, and controlling the display panel. This motherboard integrates components like the main processor (SoC), memory chips, HDMI and USB controllers, Wi-Fi/Bluetooth modules, and power management circuits, ensuring smooth operation and connectivity for the TV
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EBT63439831 (also listed as EAX66242602 (1.1), board ID 63024128) – found in 55LF6000/55LF650T series TVs
EBT63726201 (board ID EAX65610207 (1.1)) – another common variant in the same 55LF6xxx lineup
EBT63746901 (board ID EAX65610206 (1.0)) – used in closely related 55LF6100 and similar models
| Part Number | Board ID | Compatible Models | Notes |
|---|---|---|---|
| EBT63439831 | EAX66242602 (1.1) | 55LF6000‑UB & 55LF650T | Most often referenced for 55LF650T |
| EBT63726201 | EAX65610207 (1.1) | 55LF6100‑UA (& similar) | Alternate compatible board |
| EBT63746901 | EAX65610206 (1.0) | 55LF6100‑UA & variants | Slight revision older version |
All of these are main controller boards (sometimes called “motherboards”) handling HDMI, USB, tuner, etc.
While the board ID (EAX…) and firmware revision vary, TVmodels in the same series often share compatibility.
For example, board swaps within the 55LF6xxx series (6000, 6100, 650T) frequently work interchangeably
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Model numbers: Typically labeled as EAX69083603 (version 1.0) or EBT6645xxx family, and sometimes sold under PCB part code EBU66191401
Role: Central PCB handling video processing, audio output, HDMI inputs, USB, Ethernet, Wi‑Fi/Bluetooth, and integrating LG’s WebOS smart platform.
Compatibility: Known to be interchangeable between several UN7300 series sizes (e.g., 55″, 65″, 77″), confirmed by repair discussions .
Common issues: Fails due to power events (lightning), firmware glitches, or overheating, similar to other LG models. It’s repairable via replacement .
Approximate price range: ~₹4,000–₹25,000 (USD $50–285), depending on region and part condition (used or new)
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The motherboard in the LG 65UM7290PTD Smart TV integrates and controls core functions including:
Video and audio signal processing
Smart TV features (webOS platform)
Input/output ports management (HDMI, USB, Ethernet, etc.)
Wi-Fi and Bluetooth connectivity (if included)
Power control and remote signal reception
Interface with T-CON board and panel
It houses key chips such as the SoC (System on Chip), memory, tuner, and power ICs, and it’s tailored specifically for the UM7290 series’ performance and webOS functionality.
Let me know if you need the part number or a replacement guide.
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The motherboard in the LG 26CS410TB is responsible for signal processing, input/output management, audio and video decoding, and power distribution. It typically includes the following components:
Main processor (SoC) for video/audio processing
Tuner for receiving TV signals
HDMI, AV, Component input ports for external devices
EEPROM/Flash memory storing firmware and settings
Power regulation circuits for voltage management
Audio IC for sound output
This board acts as the brain of the TV, managing user inputs, video display, and connectivity functions.
Let me know if you need a part number, repair info, or a schematic.
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The LG 32LG80UR is a 32-inch LCD TV, and its motherboard (also known as the main board or main PCB) is the central circuit board responsible for managing all of the TV’s operations. Here’s a short description:
LG 32LG80UR Motherboard (Main Board):
The main board of the LG 32LG80UR is responsible for processing video and audio signals, managing input/output ports (HDMI, AV, etc.), and interfacing with the TV’s display panel and power supply. It includes the TV tuner, video processor, and control logic needed to operate the television.
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