Tariq Tech Reviews

  Fixing a Multinet 55 Inch LED TV with Distorted Lines and Black Screen: A Real-World Home Service Diagnostic Case Study Welcome back to another practical troubleshooting guide from the electronics repair bench! Today, we are shifting away from the workshop setup to discuss a live on-site repair case. As field technicians and engineers, home service calls bring a unique set of challenges. You must diagnose complex micro-electronics issues right in front of the customer, using limited portable tools, and deliver an immediate, reliable solution. Recently, I received an urgent call regarding a premium Multinet 55 inch smart LED TV. The customer reported a frustrating intermittent display failure that was disrupting their viewing experience. Let us dive deep into the systematic diagnostic procedure, step-by-step isolation of the panel electronics, and the exact cleaning method used to restore this massive screen back to factory performance. The Symptoms: Intermittent Screen Lines and ...

How to Fix Lithium Solar Battery Backup Drop: Step-by-Step Cell Replacement and Pro BMS Moisture Protection Formula Welcome back to the electronics and solar power world, folks! If you are managing a Lithium battery bank at your home, shop, or commercial setup, and suddenly notice its backup time has plummeted, this comprehensive technical guide is exactly what you need. Lithium battery banks are globally praised for their deep discharge cycles, high efficiency, and extended lifespan compared to old-school lead-acid or gel batteries. However, despite their heavy-duty performance, they possess a critical dependency: if even one or two individual cells inside the parallel-series matrix turn weak, the entire battery management network fails. Recently, a very interesting case landed on our workshop bench featuring this exact diagnostic challenge. Let us walk you through the real-world live troubleshooting, internal engineering, and a brilliant local hack to save your unit from environmenta...

  Splicing a 5-Wire Universal Power Module (CA-888) into a Dead 32-Inch China LED TV: Bench Diagnostics Hey everyone, welcome back to Tariq Tech! I’m Tariq Mehmood. If you are joining my bench for the first time, here is the breakdown: I am an electronics engineer, senior production manager, and active workshop technician with over 20 years of hands-on experience in component-level hardware repairs. I’ve spent more than 15 years managing high-volume electronics assembly lines, heavy-duty power storage systems, and advanced diagnostic centers. Through Tariq Tech (TT & Sons), I skip the theoretical fluff and give you pure, practical workshop gold to fix dead circuitry safely and efficiently. Today on the bench, we have a very common industrial problem: a 32-inch unbranded China LED TV that is completely dead . No standby light, no response from the power button, and absolute zero voltage output across the secondary rails. When an amateur technician encounters a blown primary swit...

Why Hybrid Inverters Fail During Net Metering: The Real Reasons and Simple Fixes By: Tariq Mehmood Electronics Engineer & Power Electronics Repair Specialist Inside the electronics repair lab, the solar revolution looks a bit different than it does in sales brochures. Homeowners spend hundreds of thousands on premium hybrid inverters, and everything runs beautifully for months. However, the moment the bidirectional green net meter is activated, the headaches begin Suddenly, the inverter starts throwing random error codes, suffers from continuous nuisance tripping, or worse—suffers a catastrophic internal short circuit accompanied by a loud pop and a burnt smell coming from the power stage. Over my 20-year career troubleshooting power electronics and fixing complex circuit boards on the bench, I have torn down hundreds of these damaged systems. Today, I will break down in plain, practical language exactly why net metering causes reliable hybrid solar inverters to fail, whi...