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17ips62 Schematic Diagram Updated

The Vestel 17IPS62 is a widely used Power Supply Unit (PSU) found in various budget and mid-range LED TVs, including brands like JVC, Toshiba, Techwood, and Telefunken. It is a combined power supply and LED backlight driver board. Schematic Overview

The board is divided into two primary sections separated by a "hot" and "cold" isolation barrier:

Primary (Hot Side): Handles the AC mains input, rectification, and high-voltage filtering. It typically converts 230V AC into a stable ~400V DC (PFC) or ~320V DC.

Secondary (Cold Side): Provides low-voltage rails (usually 12V and 24V) to power the mainboard and the LED backlight strips. Key Components & Functions

PWM Controller: Often uses a FAN6300 or similar IC to manage the Switch Mode Power Supply (SMPS).

LED Driver: Features a boost converter (often utilizing a MAP3249 IC) to increase voltage for the LED backlights. 17ips62 schematic diagram

Safety Features: Includes a 3.15A fuse (FS1/FS2) at the AC input and various snubbers to protect against voltage spikes. Common Failures & Troubleshooting

No Power / Dead Set: Check the main fuse and bridge rectifier. If the fuse is blown, the MOSFET on the primary side is often shorted.

Sound but No Picture: This is usually a backlight failure. Check the voltage at the LED connector (CN6). If the boost converter isn't jumping from ~24V to a higher voltage (e.g., 60V–100V), the driver IC or a LED strip is likely faulty.

Standby Light Blinking: Often caused by failing electrolytic capacitors on the secondary rails (12V/24V) or a corrupt EEPROM on the mainboard communicating with this PSU. Useful Resources

Manuals: You can download the full service manual and schematic for 17IPS62-R2 or 17IPS62-R4 on Elektrotanya. The Vestel 17IPS62 is a widely used Power

Detailed Views: High-resolution circuit diagrams are available on Scribd.

Are you trying to repair a specific fault (like no power or no backlight), or Vestel 17IPS62 Power Supply Schematic | PDF - Scribd

* C61 AC4 D35 1N4148 DRAIN D29. 2 3 AC3 S91 Q3 K10104. B 1n D21 C15V B. AC2 4kV RS1008FL C90 C88. R66 47p C102 1n. C63. 4kV. 1n. *

Vestel 17IPS12 no backlights , fault finding to component level

Symptom 1: No Power, Blown Fuse

  • Implied Schematic Issue: Shorted primary MOSFET (Q1) or bridge rectifier (DB1).
  • Fix: Desolder Q1. Check the current sense resistor (R10, typically 0.22Ω) connected to the source of Q1. Replace the PWM controller if the gate drive pin is shorted to ground.

Symptom 3: Vertical Lines or "Ghosting" on IPS Panel

  • Implied Schematic Issue: LVDS mismatch or corrupted VCOM voltage.
  • Fix: On the schematic, locate the VCOM potentiometer (often a small blue square trimmer). Measure VCOM relative to ground. It should be exactly half of AVDD (e.g., if AVDD is 15V, VCOM is 7.5V).

Step 6: How to Read the Zenith Factory Schematic (If you find one)

Zenith factory schematics (not Sams) have: Symptom 1: No Power, Blown Fuse

  • Z-number for parts (e.g., Z1 = capacitor)
  • Voltage chart on the side – key for troubleshooting
  • Waveforms for horizontal & vertical stages

Sams Photofact includes:

  • Large foldout schematic
  • Chassis photo with parts labeled
  • Alignment instructions
  • Parts list with modern equivalents

Understanding Schematic Diagrams

Schematic diagrams are visual representations of electronic circuits. They use standardized symbols to depict the components and their connections. These diagrams are crucial for understanding how a circuit works, for troubleshooting, and for the repair or development of electronic devices.

Feature Profile: 17IPS62 LCD Controller Board

The 17IPS62 is an integrated Main Board + Power Board (2-in-1) commonly used in 32-inch to 43-inch LED displays. A solid schematic diagram for this board must clearly define the following four sub-circuits:

Part 5: Creating a Substitute Schematic Diagram

If you are an engineer trying to repair a legacy system with a missing 17ips62 schematic diagram, you can synthesize one using these common values:

| Component Label | Typical Value | Role in Schematic | | :--- | :--- | :--- | | F1 | 3.15A / 250V | Input protection | | BD1 | KBP210 | Rectification | | IC1 | LD7575PS | PWM Controller (62kHz) | | Q1 | 7N60 (MOSFET) | Primary switching | | T1 | EF-25 | Flyback transformer | | D12 | SB5100 (5A, 100V) | 12V rectification | | IC2 | TL431 | Voltage reference | | IC3 | PC817 | Isolation feedback | | IC4 | OZ9993 | LED driver (6-string) | | CN1 | 30-pin FFC | LVDS to IPS panel |