+-----------------------+ +-----------------------+ | | | | | Main Board |--------| Power Supply Unit | | (Inputs, Smart Chip) | | (PSU) | | | | | +-----------------------+ +-----------------------+ | | | (LVDS / V-by-One) | (Backlight Power) v v +-----------------------+ +-----------------------+ | T-CON Board | | LED Backlight Strips| | (Timing Control) | | (Inside Panel) | +-----------------------+ +-----------------------+ | | (Ribbon Cables) v +-----------------------+ | Source / Gate PCBs | | (Bonded to Panel) | +-----------------------+ 1. Power Supply Unit (PSU)
Replace T-CON board. If lines persist, the panel's Chip-On-Film (COF) driver is damaged. Tab Bonding / COF Panel Driver
Horizontal or vertical lines; solarized colors; half-screen image; white screen. V7 0 Smart Oled Led Lcd Tv Repair Tips Pdf Free
A downloadable single-page PDF feature that provides concise, high-value repair tips, diagnostics flow, safety warnings, common fault fixes, and parts checklist specifically for the "V7 0 Smart OLED/LED/LCD TV" family.
These TVs feature integrated Wi-Fi modules and RAM/Flash memory on the mainboard, making them susceptible to firmware corruption. 2. Common Symptoms and Quick Fixes A. The "Black Screen of Death" (Sound but No Picture) This is the most common issue in LED TVs. Tab Bonding / COF Panel Driver Horizontal or
. It covers a wide range of common display and internal hardware failures across major brands. Key Content of the V7.0 Repair Guide
Smart features, firmware & network issues including any personal information you added.
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Open the back cover and look at the Power Supply Board (PSU). Look for "bulging" or leaking capacitors.
Measure the PS-ON (Power On) pin on the cable connecting the main board to the PSU. When you press the power button, this pin should jump from 0V to roughly 3.3V or 5V.