This is a physical modification. It is permanent. But for a TV destined for the landfill, it breathes new life into the unit.
Before attempting a screen bypass, a master technician follows a logical troubleshooting path to isolate the fault. Most repair guides categorize issues into three main sections:
Learn how to "cut" or bypass specific signals (like CKV, CKVB, and STVP) to eliminate double images and horizontal lines.
Step 1: Disconnect Ribbon A ──► Clear Image on Half Screen? ──► Left Side is Good │ └──► NO ──► Reconnect A, Disconnect Ribbon B │ └──► Clear Image on Half Screen? ──► Right Side is Good Step 1: Isolate the Defective Side This is a physical modification
By safely cutting or isolating the clock lines ( CKV1, CKV2, CKVB1, CKVB2, and CPV ) on the shorted side, the panel is forced to run entirely off the healthy side.
Analog voltage supply for the source driver ICs and gamma correction circuits. 20V – 35V DC
Many authors and technicians, including Imran Ashraf Khan, have expanded their curriculum into and YouTube tutorials , demonstrating the bypassing techniques in real-time. For those looking to supplement the book, these video resources are invaluable. Additionally, resources like the "Collection of OLED LCD LED TV Repair Tips V5.0" by Kent Liew are excellent companions, providing updated tips and evolving best practices for modern displays. Before attempting a screen bypass, a master technician
How to identify a "Sound but No Picture" issue and safely test LED strips without a dedicated tester.
Led strip degradation (how to find a single dead LED causing the whole array to fail). Step-by-step voltage injection testing. 2. T-CON Board Architecture and Error Codes
Disclaimer: High voltage exists inside power supply units. Capacitors can hold lethal charges for days. Always discharge the main filter capacitors before working on a TV. The author and platform are not responsible for injuries or destroyed panels resulting from improper bypassing techniques. ──► Left Side is Good │ └──► NO
The "brains" of the TV that processes audio, video inputs, and user commands.
By placing a tiny strip of non-conductive cellophane tape over these specific pins on the FFC cable, the technician cuts off the signal to the shorted side of the panel.
Powers the internal analog circuitry of the source drivers and gamma correction buffers. Gate High Voltage 20.0V to 32.0V DC