LG 55UH650T Has No Power? Girl Finds Rusty Trace and Burnt MOSFETs - Fixed!

This LG 55UH650T TV was completely dead - no power at all. When I opened it, I found rust, a broken trace, and burnt MOSFETs. Watch me reuse spare parts from an old board to bring this TV back to life. Saved over $500! The problem: This LG 55-inch TV (model 55UH650T) had no power. Completely dead. The owner thought it was time to buy a new TV . What I found: When I opened the TV and inspected the power board, I discovered multiple issues: 🔹 Rust and corrosion on the power board 🔹 A broken trace (the copper connection between two points on the board) 🔹 This broken trace caused the voltage boost circuit to malfunction 🔹 The malfunction destroyed 2 power MOSFETs and the AC fuse Why this happened: The rust created resistance on the trace, which eventually broke. Without that connection, the circuit sent wrong signals, burning out the MOSFETs and blowing the fuse . The fix: 🔹 I searched my spare parts collection and found an old board with good MOSFETs 🔹 Removed the burnt MOSFETs from the LG power board 🔹 Soldered the working MOSFETs from the donor board 🔹 Replaced the blown AC fuse with a spare 🔹 Used a small piece of wire to reconnect the broken trace (bypassing the rust) 🔹 Cleaned the rusted area to prevent future problems The result: The TV powered on perfectly! No more dead power board, no more blown components. The LG 55UH650T works like new again! ✨ How much did this cost? Almost nothing! I reused spare parts from an old board. A new power board would cost $80-150. A new LG 55" TV would cost $500-700. This repair saved hundreds of dollars! What you can learn: ✅ Don't throw away old boards - they are treasure for spare parts ✅ Rust can kill electronics - keep your TV in a dry place ✅ A broken trace can be fixed with a simple wire ✅ Reusing parts saves money and the environment (Timestamps): 0:00 - The problem: LG 55UH650T has no power 0:30 - Opening the TV and finding rust on power board 1:00 - Discovering the broken trace 2:00 - Finding burnt MOSFETs and blown fuse 3:00 - Searching for spare parts from old board | 4:00 - Soldering new MOSFETs and fuse | 5:00 - Fixing the broken trace with a wire | 6:00 - Cleaning rust and reassembling | 7:00 - Testing - TV WORKS! | 8:00 - How much money was saved Do you keep old electronic boards for spare parts? Tell me in the comments! Reusing parts is one of the best ways to save money on repairs. Love watching TVs come back from the dead? SUBSCRIBE for daily repair videos! I upload new fixes every day! 🛎️ 👉 @phamxoavietnamesegirl Money Saved Breakdown: 💰 HOW MUCH MONEY DID THIS REPAIR SAVE? Option Cost New LG 55" 4K TV $500 - $700 New power board $80 - $150 Professional repair $150 - $250 My fix: Reused MOSFETs + wire Under $5 TOTAL SAVED $500 - $700+ Plus, I saved a TV from the landfill! What Causes Rust Inside a TV: 📌 PREVENTING RUST IN YOUR TV: Cause Solution High humidity Keep TV in a dry room Liquid spills Keep drinks away from TV Moisture from AC Don't place TV near air conditioner vents Condensation Let TV warm up before turning on if moved from cold to warm room Rust is a silent killer of electronics. A little prevention saves big money! Tips for Building a Spare Parts Collection: 📌 WHERE TO FIND DONOR BOARDS: 1️⃣ Your own broken electronics - Keep them for parts! 2️⃣ Friends and family - Ask if they have old broken devices 3️⃣ Local repair shops - They might give away broken boards 4️⃣ Online marketplaces - Sometimes free or very cheap 5️⃣ Recycling centers - Ask before they crush everything One old board can save multiple future repairs! ⚠️ DISCLAIMER - IMPORTANT: • Power boards contain high voltage that can be dangerous. Always unplug the TV and wait before opening . • Rust can hide other damage. Clean the area and check for more broken traces . • MOSFETs must be replaced with matching specs. Use the exact same part number or equivalent . • Don't use a wire that is too thin - it must handle the current of the circuit . • If you're not experienced, watch for educational purposes and consult a professional . • This video is for educational purposes only. Thanks for watching! Another TV saved with spare parts! ❤️ #lgTV #tvrepair #nopower #rustedboard #reuseparts #mosfetreplacement #girlfixes #savemoney #lg55uh650t #vietnam #phamxoa