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Samsung BN41-03323A Mainboard for TQ75QN74FAT QN74F Neo QLED 75 2025 TV

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99.95 €
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Samsung BN41-03323A Mainboard for TQ75QN74FAT QN74F Neo QLED 75 2025 TV

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🇪🇸 Spanish seller · Shipped from Spain in 24/48h · VAT invoice

Main board Samsung BN41-03323A · chassis DFVC2550

For Samsung Neo QLED 75" QN74F series (2025) · Grade A with zero hours of use

Board designBN41-03323A-000 · chassis DFVC2550 · PONTUS BUILT IN · 193 x 241 mm 1.6T · date 2024.11.29
WiFi/BT ModuleBN40-00274A soldered onto board (batch 251212 X82C) — included
Built-inTuner DVB-T/satellite, WiFi/Bluetooth module BN40-00274A, HDMI, USB, LAN, CI+, TAS5807M audio amplifier
ManufacturePCB dated 29/11/2024 · marked 2025Y
Extracted fromSamsung TQ75QN74FAT (TQ75QN74FATXXC) · Version 02 / QN7XF / QN70FF-Q75FF2 · S/N 0MHM3HKL300280E · manufactured in Hungary
ConditionGRADE A — ZERO HOURS OF USE: from a new TV with panel damaged in transit
✓ COMPATIBILITY

For Samsung Neo QLED from the QN74F family (2025). For Samsung main boards, compare the board design BN41-03323A with yours, or get in touch with your full model number and version (from the label on the back of the TV) and we'll confirm compatibility with no obligation. Typical symptoms of a faulty main board: TV that won't boot up, gets stuck on the logo, no signal on HDMI, no WiFi/apps.

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and protected rigid box		 🛡 WARRANTY
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MULTiTECH · Marbella, Málaga (Spain) · Genuine spare parts from leading brands
🛠️ MULTITECH DIAGNOSTIC BENCH — find the culprit in 3 steps

STEP 1 — The torch test 🔦 (the one that separates a smart purchase from a return): in the dark, switch the TV on and hold a torch right up against the screen. Can you make out an image? The panel and the main board work: your problem is the backlight (LED strips, driver or the backlight stage of the power supply). No trace of an image? Keep reading.

STEP 2 — Standby light and ear 👂: is the standby LED steady, blinking or dead? Can you hear relay clicks or channel audio? Each combination points to a different suspect in the table.

STEP 3 — Find your symptom:

What your TV doesSuspect no. 1Also check
Completely dead, standby LED offPower supplyfuse, mains cable
Standby LED blinks, won't startPower supplymain board
Turns on and shuts off immediatelyPower supply (protection)main board, shorted LED strips
Sound OK, image visible only with a torchLED stripsLED driver, power supply backlight stage
Sound OK, pitch black even with a torchMain board (video circuit)T-CON, LVDS flex
Dark areas or uneven brightness by zonesLED stripsLED driver
Vertical lines or half screenT-CONpoorly seated LVDS flex
Odd colours or negative imageT-CON (gamma)LVDS flex
Poor sound: distorted, rattling or one channel silentSpeakersmain board (audio stage)
Can't find WiFi networks or Bluetooth won't pair (Magic Remote, headphones)WiFi/BT modulemodule flex cable, main board
Frozen image, artefacts, no response to the remoteMain boardfirmware
Thin horizontal lines⚠️ usually the panel (COF flex)ask us before buying

💬 Unsure about your diagnosis? Message us BEFORE buying with your TV's full model number and the symptom: we'll tell you which part you need, no obligation — we'd rather advise you for free than process a return. And if the part still doesn't fix your fault, you have 30 days to return it and get your money back (return postage paid by the buyer).

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