Vestel 17ips62 Schematic New |work| -

Measure the voltage at the LED output connector at the exact moment the TV is powered on. If the voltage spikes up to 70V–100V and then rapidly drops down to the base 12V/24V rail, the power supply circuit is working fine. The fault lies with burnt-out LED strips inside the panel itself.

If the power supply outputs 12V but not the backlight voltage, the issue is likely in the LED driver circuit (U500/Q501). Conclusion

The is a widely used Power Supply Unit (PSU) found in many 32" to 55" LED TVs under brands like JVC, Hitachi, and Toshiba. This "new" report outlines the critical schematic architecture, key voltage rails, and common failure points for the R2 and R4 revisions. Core Circuit Architecture

: Approximately +400V DC across the main filter capacitor if PFC is active. Common Failure Points vestel 17ips62 schematic new

Check the surface-mount MOSFET and the high-speed diode responsible for stepping up the voltage.

Unlike older boards that used separate OVP (Over Voltage Protection) coils, the 17IPS62 integrates the LED driver into the LLC transformer windings or utilizes a post-regulator boost topology.

When troubleshooting a dead or malfunctioning 17IPS62 board, focus on these common failure points: 1. Completely Dead Board (No Standby Light) Measure the voltage at the LED output connector

Typically +12V DC (Main power) and +5V DC (Standby power, depending on the specific chassis variant) Backlight Driver Topology: Boost converter configuration

Check for 12V on the secondary side connectors. Key Components on the 17IPS62 Circuit Diagram

The 17IPS62 is known for specific component failures, often triggered by power surges or aging capacitors. 1. The "Dead TV" Symptom Primary side failure. If the power supply outputs 12V but not

A large electrolytic capacitor (typically rated at 450V, 68µF to 150µF) smooths the pulsating DC into a stable high-voltage DC bus of approximately 310V to 320V DC (for 230V AC regions). 3. The Pulse Width Modulation (PWM) Control Circuit

The 17IPS62 is highly reliable for its price point, but years of thermal stress can cause specific components to degrade. Below are the most common failures found when cross-referencing the schematic.

Vestel frequently updates their boards without changing the main model number. A 17IPS62 from 2016 might have slight component value differences compared to a "new" version from 2022.