Protects the board against transient voltage spikes from the domestic power grid.
The is a widely used integrated power supply and backlight driver found in many budget-friendly LCD and LED televisions. Understanding its schematic is essential for diagnosing common issues like "sound but no picture" or a completely dead unit. 🔌 Schematic Overview
The 17IPS12 is a highly integrated Switch-Mode Power Supply (SMPS) combined with an LED backlight driver. It converts standard AC mains voltage into the stabilized DC voltages required to power the TV’s main logic board, panel t-con, and backlight array. vestel 17ips12 schematic
Test the diodes out-of-circuit with a multimeter in diode mode. Replace shorted diodes with high-quality equivalents (e.g., UF5402 or SB5100, depending on schematic specs). 2. Degraded Electrolytic Capacitors
Accessing the is crucial for technicians looking to repair rather than replace this board. The schematic provides a roadmap for troubleshooting voltage regulation, standby circuits, and the backlight inverter. 1. Overview of the Vestel 17IPS12 PSU Protects the board against transient voltage spikes from
Main fuse (F100) and the primary switching MOSFET (Q100).
| Reference | Description | Common Part Details | | :--- | :--- | :--- | | | Electrolytic Capacitor | 220µF, 20%, 35V | | U101 (IC) | PWM Controller | FAN6300A / FAN6300H (Fairchild/ON Semi) | | Mosfet | Backlight Driver | FQD7N10L | 🔌 Schematic Overview The 17IPS12 is a highly
You should measure approximately 310V to 325V DC across the legs of this large bulk capacitor when operating on a 230V AC grid. Primary Switching & Control IC
The Vestel 17IPS12 is notorious for a few specific component failures. If your TV exhibits symptoms like a flashing standby light, click of death, or no power at all, check the following culprits in order. Symptom A: Completely Dead TV (No Standby Light)
This developed feature transforms a standard Vestel 17IPS12 from a static power supply into a . It is highly valuable for:
The 17IPS12 usually integrates the LED driver on the same PCB. It takes the main output voltage and drives the LED strips with a constant current.