The board typically features the following sections and components: Input Voltages
| Pin | Signal | Description | Normal Voltage | |---|---|---|---| | 3 | STBY_ON/OFF | Main power on/off control from mainboard | Low (<0.8V) = Standby, High (>2.2V, typically 3.3V) = Power On | | 5 | BKL_ON/OFF | Backlight enable signal | 0V = LEDs Off, High = LEDs On (3.3V) | | 7 | PWM_DIM | Backlight brightness control (PWM signal) | Variable 0–3.3V DC or PWM | | 11 | 12V | 12V supply for mainboard | 12V | | Also present | 5V | Standby supply | 5V | | Also present | 24V | Supply for audio amplifiers, etc. | 24V |
A: No. While similar, they are different layouts. The 17IPS62 specifically has a dedicated 24V output. The 17IPS61 has a 12V only output for smaller screens. Do not swap them. vestel 17ips62 schematic
Fault Symptom 3: Sound Present, No Picture (The "Flashlight Test")
A snubber circuit (composed of diodes like the HER207, resistors, and high-voltage capacitors) protects the MOSFET from excessive voltage spikes during turn-off. 3. Secondary Rectification and Feedback Loop The board typically features the following sections and
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A: Vestel used multiple revisions. Rev 1.0 used TNY267. Rev 3.0 used ICE2QR4765. Always match the revision number printed on the white sticker on your board. The 17IPS62 specifically has a dedicated 24V output
Generates 12V and 24V DC for the main board and backlight driver.
The large 450V capacitor can hold a charge of over 320V DC long after the TV is unplugged. Always use a dedicated discharging tool or a high-wattage resistor to drain it before touching the board. Never short it with a screwdriver.
This board is designed for efficiency, utilizing a two-stage approach:
: This side connects to high voltage from your wall outlet. It takes in AC power and changes it to high-voltage DC power (around 400V).