Imran Ashraf is a recognized expert in the field of electronics repair, particularly within the South Asian technician community. He has authored several technical guides that have become essential resources for both beginner and professional technicians dealing with complex television hardware.
His books are highly regarded for their practical approach, moving beyond theory to provide actual "tricks" and bypassing methods used in modern repair workshops.
📘 Key Publications by Imran Ashraf
1. LED LCD TV Repairing Guide and Panel Bypassing Method
This is his flagship manual, often referred to as a "master's guide." It focuses on the most difficult aspect of modern TV repair: the display panel.
Core Content:** Detailed methods for bypassing faulty internal panel circuitry (gate signals, CKV lines, and bypass tracks).
* **Technical Focus:** Solving "No Display," "Double Image," and "Slow Motion" problems without replacing the entire expensive panel.
Key Feature:** Includes extensive **COF (Chip-on-Film) Data Sheets**, which are critical for technicians using Tab Bonding machines to identify correct voltage test points (VGH, VGL, VDD). 2. Practical LCD/LED TV Training Course
Designed as a comprehensive curriculum, this book is often used by those entering the field professionally.
* **Visual Learning:** Features nearly **300 high-resolution color pages** with clear photographs of actual circuit boards and components.
Troubleshooting:** Covers everything from basic SMPS power supply repair to advanced main board software flashing.
Specialized Topics:** Includes sections on water damage repair, burn track restoration, and COF substitution.
3. LCD/LED TV Modification and Major Repairs (E-book Series)
Imran has released several volumes in digital (PDF) format, specifically tailored for quick reference on a smartphone or tablet while at the workbench.
Modification Techniques:** Teaches how to adapt universal boards (like the popular V56 or V59) to different panels.
Firmware & Software:** Guides on how to use programmers (like RT809F or RT809H) to flash firmware and resolve "logo hang" or "software stuck" issues.
🛠️ Why Technicians Value His Books
Real-World Solutions:** Unlike standard textbooks, Imran’s guides focus on "jumpering" and "bypassing"—techniques that save panels which would otherwise be considered scrap.
Language Accessibility:** His materials are available in **English and Hindi/Urdu**, making them highly accessible to the technician community in Pakistan, India, and Bangladesh.
Community Support:** Readers of his books often follow his **YouTube channel** and Blogspot site (Electronics-Tricks)**, where he provides live demonstrations of the methods described in his writing.
Note for Professionals:** Imran Ashraf's work is protected by copyright. He frequently reminds his community that these e-books are intended for personal professional use to support the hard work put into compiling these technical "secrets."
@New eBook is Available in PDF Format
@Here’s a concise and clear description for an eBook titled **" 100 Gate COF VOLTAGES Data – The Ultimate Cof @Data Guide"**:
With Source Cof Substitute Alternative Guide
This Gift for Tab Bonding Machine Working Technician,If you don't Get Original number you can use substitute cof number with this Cof Substitute List including in my eBook
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**eBook Description:**
*Unlock the secrets of advanced LCD TV panel technology with this comprehensive guide!* Bypassing Voltages VGH VGL and other Signals like CPV CKV STV OE Connection Points
This eBook dives deep into the intricate world of **Gate COF (Chip-on-Film)** and **Side COF** configurations, covering **over 100 variations** used in modern LCD TV panels. Whether you're an engineer, technician, or electronics enthusiast, you'll gain valuable insights into:
✅ **Design & Functionality** – How Gate COF and Side COF Data Voltages and Signals architectures enhance display performance.
✅ **Troubleshooting & Repair** – Common issues, failure modes, and solutions for COF-based panels.
✅ **Comparative Analysis** – Differences between 100 Gate COF designs and their applications.
✅ **Industry Trends** – The evolution of COF technology in 4K, OLED/LCD TVs.
Packed with **Information of Gate Cof, and real-world examples**, this guide is a must-have for professionals and hobbyists looking to master LCD panel engineering.
**Who Should Read This?**
- TV repair technicians
- Display panel engineers
- Electronics students & researchers
- Manufacturing & QA specialists
**Get your copy today and elevate your expertise in LCD TV panel technology!**
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This description balances **technical depth** with **accessibility**, ensuring it appeals to both professionals and enthusiasts. Let me know if you'd like any refinements!
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Pages Screenshot
Cof eBook Pages Screenshot 📌 Imran Ashraf Electronics Repair Services
Professional LCD/LED TV Firmware, COF Voltages, and Repair Solutions
🔥 Our Services
- COF Voltages Data Download
- LCD/LED TV Firmware Support
- Panel Faults Testing Tips
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to create and display images in vibrant colors and detail.
VGH stands for Vertical Gate High.
It is a voltage used in liquid crystal displays (LCDs) to control the horizontal position of the liquid crystal molecules.
VGH positive 24V to 29V as per panel size
The exact voltage needed for VGH depends on the specific LCD display technology and manufacturer
VGL is the abbreviation for Gate-to-Source Voltage Low, Negative Voltage
which refers to the voltage applied to the gate terminal of a field-effect transistor (FET) to control the flow of current between the source and drain terminals.
It is commonly used in the context of FET amplifier circuits and is typically specified as a range of values, such as -5v to -11v
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