The LG 43LH576T-TD motherboard (typically marked as EAX66883503 or EAX66883504) is the primary control board for the LG 43-inch Full HD Smart LED TV. It manages all critical TV functions including video and audio processing, input/output control, and smart features powered by LG’s NetCast or early webOS platform. Supporting a 1920×1080 resolution, it delivers clear picture quality and smooth performance, with integrated support for Dolby Digital sound, Virtual Surround, and Clear Voice technologies. The board includes 2 HDMI ports, 1 USB port, AV input, RF input, LAN port, built-in Wi-Fi, and optical digital audio out, enabling versatile connectivity and access to online content like YouTube and Netflix. As the central unit linking the panel, power supply, and firmware, this motherboard is essential for the TV’s smart and multimedia capabilities, and is commonly replaced in cases of no power, signal failure, or HDMI issues.
LG (42LV3500 T A) MOTHERBOARD
The LG 42LV3500‑TA motherboard (part number EAX64290501 / AGF76318201) is the main control board designed specifically for the LG 42-inch Full HD LED TV (model 42LV3500). It manages all essential functions including video and audio processing, input/output control, firmware operations, and user interface management. This board supports multiple input options such as HDMI, component, composite, RF, and USB, and enables features like Dolby Digital sound, Picture Wizard II, and Intelligent Sensor for auto picture adjustment. It is a critical component for restoring functionality in cases of power issues, no signal, or HDMI failure and is widely available as a replacement part both new and refurbished.
₹3,000.00 ₹6,000.00
General Information
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Board Model: EAX64290501 (0 or 4)
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Part Number: AGF76318201
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Compatible TV Model: LG 42LV3500-TA / 42LV3500-UA
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Display Type: LED LCD TV
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Screen Size Supported: 42 inches
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Resolution Supported: Full HD 1920 × 1080 (1080p)
🧠 Processing Features
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Video Processor: LG XD Engine
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Supported Features:
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24p Real Cinema
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Picture Wizard II (manual calibration)
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Intelligent Sensor (automatic brightness adjustment)
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ISF (Imaging Science Foundation) Expert Calibration Modes
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🔌 Input Ports
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HDMI: 3 ports (HDMI 1.4 – supports CEC, ARC)
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Component Video (YPbPr): 1 set (shared with composite)
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Composite Video Input: 1 (shared with component)
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RF Antenna Input: 1 (supports ATSC/NTSC/QAM)
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PC Input (VGA/D-Sub 15-pin): 1
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PC Audio Input: 1 (3.5mm)
🔊 Audio Features
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Audio Output Power: 20W total (10W x 2 channels)
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Audio Decoding: Dolby Digital
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Sound Enhancements:
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Infinite Surround
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Clear Voice II
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📤 Output & Control Ports
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USB Port: 1 × USB 2.0 (supports MP3, JPEG, MPEG playback)
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Optical Digital Audio Output: 1
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RS-232C (Service Port): 1 (for technician servicing/control)
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IR/Keypad Support: Connectors for internal TV control board
⚙️ Other Technical Details
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Firmware Control: Stores and runs the TV’s operating software
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Signal Management: Distributes video/audio to panel and speakers
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Power Input: Receives DC power via power board (typically 3.3V, 5V, 12V)
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Interface Boards: Connects to T-Con board, power supply, LED driver
🛠️ Use Case & Maintenance
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Used to replace faulty main boards in LG TVs
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Common failure signs: no display, no sound, HDMI not working, or boot errors
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Requires firmware compatibility check and correct model matching
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