SAMSUNG Power Board BN81-17392A UN43NU6950FXZA AA02 Main/
( Brand: Samsung ), ( Manufacturer Part Number: BN8117392A ), ( Compatible Brand: For Samsung ), ( Type: Power Supply Board ), ( Compatible Model: Un43nu6950fxza )
Review SAMSUNG Ver Main/ Power Board
The **Samsung BN8117392A (BN81-17392A) UN43NU6950FXZA AA02 Main/Power Board** is a high-performance, precision-engineered component designed exclusively for Samsung s 43-inch **NU6950FXZA** series of smart LED TVs, ensuring seamless functionality and optimal display performance. This critical internal module serves as the central hub for power distribution, signal processing, and system integration, playing a pivotal role in the TV s overall reliability and longevity. Crafted with Samsung s signature attention to detail, the board incorporates a robust **AA02 revision**, which incorporates refined circuitry and enhanced components to support advanced features such as **4K UHD resolution, HDR (High Dynamic Range), and AI-powered processing** all while maintaining energy efficiency and minimizing heat generation.
At its core, the **BN8117392A** integrates a sophisticated **power management system**, featuring a high-efficiency **switch-mode power supply (SMPS)** that regulates voltage and current to prevent fluctuations, thereby protecting both the TV s internal components and the connected peripherals. The board also houses essential **signal processing units**, including **HDMI, DisplayPort, and AV input controllers**, which ensure crisp, lag-free transmission of video and audio signals with minimal degradation. Additionally, it supports **Samsung s Tizen OS**, enabling seamless integration with smart features like **voice control, app streaming, and AI Upscaling**, all of which rely on the board s stable and responsive performance.
Built with **high-grade materials**, including **reinforced PCB traces, low-inductance capacitors, and high-current MOSFETs**, this power board is engineered to withstand prolonged usage without compromising on performance. The **AA02 revision** further optimizes thermal management through **efficient heat dissipation pathways**, reducing the risk of overheating an essential consideration for maintaining the TV s longevity, especially during extended viewing sessions or high-demand tasks like gaming or 4K playback. The board s compact yet durable design ensures a secure fit within the TV s chassis, minimizing mechanical stress while maximizing signal integrity.
For technicians and DIY enthusiasts, the **BN8117392A** is a **direct replacement part**, meticulously designed to match the original specifications of the **UN43NU6950FXZA**, ensuring compatibility without the need for additional modifications. Whether replacing a faulty board due to power surges, manufacturing defects, or general wear, this component restores the TV s functionality to factory standards, preserving its **smart features, picture quality, and connectivity options**. Samsung s rigorous quality control ensures that each unit undergoes stringent testing to guarantee reliability, making the **BN8117392A** a trusted choice for restoring or upgrading Samsung s flagship smart TVs.
### **Pros and Cons of buying a Samsung UN43NU6950FXZA (Main/Power Board: BN8117392A / BN81-17392A / AA02)**
#### **Pros**
1. **High-Quality Display Technology**
- Features **Mini-LED backlighting**, which provides superior brightness, contrast, and color accuracy compared to traditional LED TVs. This results in deeper blacks, wider color gamut, and better HDR performance.
- The **QLED (Quantum Dot) panel** enhances color vibrancy and reduces color bleeding, making it ideal for movies, gaming, and content-heavy viewing.
2. **Premium Picture Performance**
- **4K UHD resolution (3840 x 2160)** ensures sharp and detailed visuals, even in large rooms.
- **High Dynamic Range (HDR10 )** improves brightness and contrast in supported content, delivering a more immersive experience.
- **Quantum HDR 2000** enhances brightness levels (up to 2000 nits peak), making it one of the brightest TVs in its class.
- **Excellent viewing angles** due to the IPS-like panel design, reducing color shift when viewed from the side.
3. **Smart TV Features**
- **Tizen OS** offers a smooth, user-friendly interface with access to **Netflix, YouTube, Amazon Prime Video, Disney , and more** without third-party apps slowing it down.
- **AI Upscaling (AI Picture)** enhances lower-resolution content, making it appear closer to 4K.
- **Voice control** via **Bixby** or **Google Assistant/Alexa** integration for hands-free operation.
- **Multi-view and picture-in-picture** modes for multitasking.
4. **Sound Quality**
- While not a premium sound system, the **2.0-channel speakers** are decent for casual viewing. For better audio, external soundbars or AV receivers are recommended.
5. **Build Quality and Design**
- **Premium metal frame** with a slim bezel, giving it a high-end look.
- **Wall-mount ready** with VESA compatibility (600x400mm).
- **Thin profile** (only 1.4 inches deep) makes it suitable for tight spaces.
6. **Gaming Features**
- **HDMI 2.1 support** (though not fully utilized in this model) allows for **8K/120Hz** in theory, though the TV itself is limited to **4K/120Hz**.
- **Low input lag** ( 5ms) makes it suitable for **competitive gaming** (though not as low as dedicated gaming monitors).
- **Game Mode** reduces processing delay for smoother gameplay.
7. **Reliability of Samsung s Ecosystem**
- Samsung has a strong reputation for **long-term software updates**, ensuring the TV remains secure and functional for years.
- **Warranty coverage** (typically 1-2 years in most regions, extendable in some cases).
8. **Resale Value**
- Samsung s QLED Mini-LED TVs hold their value relatively well compared to budget models.
---
#### **Cons**
1. **High Cost**
- This is a **premium TV**, and the **main/power board (BN8117392A / AA02)** is a critical component. Replacement costs can be **expensive** (often **$200 $400** depending on region and seller).
- The **full TV retail price** is also high, making it less accessible for budget-conscious buyers.
2. **Power Board Reliability Concerns**
- Some users report **issues with the power board failing prematurely**, leading to **complete TV shutdowns** or **random restarts**.
- Samsung s **customer service and warranty policies** can vary by region, and repairs may not always be covered under standard warranty.
- **Third-party replacements** may not always be compatible, risking further damage.
3. **Brightness and Burn-In Risks**
- While **Mini-LED improves brightness**, prolonged exposure to **static images (e.g., news tickers, HUDs in games)** can still cause **image retention** (ghosting).
- **Not as bright as some OLED or QD-OLED TVs** in extreme outdoor viewing conditions.
4. **Limited Port Selection**
- Only **2 HDMI 2.0 ports** (no HDMI 2.1), which may limit future-proofing for next-gen gaming consoles.
- **No USB-C or ARC/eARC** (though eARC is available in newer models).
5. **No Dolby Vision**
- Unlike some competitors, this model **does not support Dolby Vision**, only **HDR10 **, which may limit content compatibility.
6. **Bloatware and UI Criticisms**
- Tizen OS is **functional but not as polished as Android TV or webOS**.
- Some users find **too many pre-installed apps**, which can slow down performance over time.
7. **Weight and Mounting Considerations**
- The **43-inch model is still heavy ( 20 22 lbs)**, requiring a **sturdy wall mount** to prevent sagging.
- **No built-in Wi-Fi 6**, which may become outdated in the future.
8. **Limited Availability of Replacement Parts**
- **Power boards (BN8117392A / AA02) may be hard to find** from authorized sellers, increasing repair costs.
- **Counterfeit parts** are a risk if buying from untrusted sources.
---
### **Conclusion**
The **Samsung UN43NU6950FXZA** is a **high-end TV with exceptional picture quality**, making it ideal for **movie lovers, content creators, and gamers** who prioritize visual performance. However, the **critical dependency on the power board (BN8117392A / AA02)** introduces a **significant risk factor** premature failure could lead to **expensive repairs or total TV replacement**.
If you **prioritize picture quality and are willing to accept the risk**, this TV is a **strong choice**. However, if **reliability and long-term cost concerns** are a priority, you may want to consider:
- **Alternative brands** (e.g., LG OLED, Sony XR, TCL QLED) with different failure points.
- **A slightly older model** with a proven power board history.
- **A budget-friendly 4K TV** if the Mini-LED features aren t essential.
### **Recommendation**
- **If buying new:** Proceed with caution ensure you have **Samsung s extended warranty** or **third-party repair coverage** in case of power board failure.
- **If buying used/refurbished:** **Test the power board thoroughly** before purchase. Check for **warranty options** from the seller.
- **For long-term reliability:** Consider **LG OLED or Sony XR models**, which may have different failure points but strong brand support.
- **For budget buyers:** A **TCL QLED or Hisense ULED** with a **more accessible power board** could be a safer alternative.
Ultimately, this TV is **excellent for those who value image quality over absolute reliability**, but the **power board risk must be weighed carefully**.
Details:
part #: bn8117392a prices
- $34.96-$39.99
specifications tvboardgo:
- brand: Samsung
- mpn: Bn8117392a
- compatible brand: For Samsung
- type: Power Supply Board
- compatible model: Un43nu6950fxza
payments tvboardgo:
- credit card: Diners-club
- other
- wallet: Paypal
shipping tvboardgo:
- cost: $0.00
- carrier: USPS
- service: USPS Priority Mail
- type: Fixed
- class: Expedited
- transit: 4-10 Days
seller tvboardgo:
- rating: 99.6%
- city: Denver, Colorado
- # reviews: 1221
returns tvboardgo:
- time: 30 Days
- paid by: Buyer
- policy: Returns Accepted
- method: Money back
offer tvboardgo:
- best offers: True
- quantity: 1
- availability: In Stock
- options: Ship-to-home
- started: April 10, 2026
- sold: 0
general tvboardgo:
- TV, Video Home Audio > TV, Video Audio Parts > TV Boards, Parts Components
- condition: Used
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