SONY Tv Board 400WTC4LV3.4

( Brand: Sony ), ( Manufacturer Part Number: 400WTC4LV34 ), ( Compatible Brand: For Akai ), ( Type: T-con Board ), ( Unit Type: Unit ), ( Compatible Model: Kdl-40s3000 )

Review SONY Genuine Tv T con Board

The **Sony 400WTC4LV3.4** is a high-performance, professional-grade **T-Con (Timing Controller) board** specifically designed for Sony s **400WTC4 series** of large-format LCD panels, including the **400WTC4LV34** display model. This precision-engineered component serves as the critical interface between the display s backlight, timing signals, and power supply, ensuring seamless synchronization, optimal brightness control, and reliable operation across demanding commercial, industrial, or high-end retail environments. Built with Sony s proprietary **T-Con technology**, this board integrates advanced signal processing capabilities to deliver **superior image uniformity, reduced flicker, and enhanced color accuracy**, making it ideal for applications where visual clarity and consistency are paramount such as digital signage, trade show displays, or high-resolution monitoring systems.

The **400WTC4LV3.4** features a robust **dual-channel LED backlight driver** capable of managing high-power LED arrays with minimal heat dissipation, ensuring longevity and energy efficiency. Its **high-speed timing controller** supports **HDMI, DVI, and VGA inputs**, accommodating a wide range of video sources while maintaining **low input latency** for real-time applications. The board s **adjustable brightness and contrast controls** allow for fine-tuning to match ambient lighting conditions, while its **built-in error correction and signal recovery mechanisms** mitigate potential signal degradation, reducing the risk of display artifacts or synchronization issues. Constructed with **high-grade PCB materials and reinforced connectors**, this T-Con board is designed to withstand frequent use in dynamic environments, offering **durability and reliability** that aligns with Sony s reputation for premium display technology.

For technicians and integrators, the **400WTC4LV3.4** provides a **plug-and-play solution** that simplifies installation and maintenance, thanks to its **modular design and compatibility with Sony s ecosystem of display components**. Whether used in **retail kiosks, corporate lobbies, or large-format video walls**, this T-Con board ensures that the **400WTC4LV34 display** operates at peak performance, delivering **vibrant, flicker-free visuals** with minimal power consumption. Its **low-profile form factor** and **compact mounting options** further enhance its versatility, making it a seamless fit for both custom-built and pre-configured display systems. With Sony s commitment to innovation and quality, the **400WTC4LV3.4** stands as an essential component for professionals seeking **high-definition, professional-grade display solutions** that combine performance, durability, and ease of use.

### **Pros and Cons of buying a Sony 400WTC4LV3.4 (T-Con Board for 400WTC4LV34 TV)**

1. **Compatibility** This T-Con board is specifically designed for the **Sony 400WTC4LV34** model, ensuring a direct fit without modification. It eliminates the need for third-party adapters or risky soldering.

2. **Reliability** T-Con boards are critical components for panel functionality. A genuine or high-quality replacement reduces the risk of flickering, dead pixels, or complete panel failure.

3. **Cost-Effective Repair** Replacing just the T-Con board is often cheaper than buying a new TV, especially if the backlight, power supply, or other components are still functional.

4. **Improved Longevity** If the original T-Con board failed due to wear, a replacement can extend the TV s usable life, saving money in the long run.

5. **Ease of Installation** Many T-Con boards come with clear instructions, and some users report that swapping them is a straightforward process (though caution is advised).

6. **Potential for Resale Value** If the TV is otherwise in good condition, a repaired unit may still hold some resale value, depending on demand.

1. **Quality Variability** If purchasing from an untrusted seller (e.g., eBay, AliExpress, or unknown marketplaces), there s a risk of receiving a **counterfeit or low-quality board**, which could fail quickly or cause further damage.

2. **Technical Difficulty** While some users find T-Con replacement manageable, others may struggle with **soldering, connector alignment, or panel calibration**. Lack of experience could lead to improper installation or damage.

3. **No Warranty** Unlike buying from an authorized Sony service center, third-party T-Con boards typically come with **no warranty**, meaning you bear full responsibility for defects.

4. **Backlight or Other Issues** If the TV has **backlight failure, power supply problems, or other internal faults**, replacing just the T-Con board won t fix those issues. A full diagnostic is necessary before purchasing.

5. **Limited Availability** Some sellers may not stock the exact model, leading to delays or the need for alternative (and possibly incompatible) parts.

6. **Potential Void Warranty (If Applicable)** If the TV was under warranty, attempting a DIY repair (even with a genuine part) could void coverage, leaving you without official support.

---

### **Conclusion**

- The TV s issue is **confirmed to be the T-Con board** (not backlight, power supply, or other components).

- You **source the part from a reputable seller** (preferably with positive reviews and return policies).

- You are **comfortable with basic electronics repair** or have access to professional help.

- The TV is **otherwise in good condition** and worth repairing.

- You are **not experienced with electronics repairs**, hiring a professional may be safer.

- The TV has **multiple failing components**, a full replacement might be more economical.

- You **cannot verify the part s authenticity**, the risk of a faulty or incompatible board increases.

---

### **Recommendation**

1. **Verify the Issue** Before purchasing, confirm that the **T-Con board is the sole problem**. Test the TV with a known-good input (e.g., HDMI from a computer) to rule out backlight or power supply failures.

- **Authorized Sony repair centers** (if available in your region).

- **Well-reviewed sellers on eBay, Amazon, or specialized TV repair forums** (check for seller ratings and return policies).

- **Local electronics repair shops** that handle Sony TVs.

Avoid extremely cheap listings that seem too good to be true.

3. **Consider Professional Repair** If unsure about installation, a technician can ensure proper alignment and calibration, reducing the risk of further damage.

4. **Budget for Contingencies** Have some extra funds set aside in case additional parts (e.g., connectors, backlight drivers) are needed.

5. **Weigh Cost vs. Value** Calculate whether repairing the TV is worth the time and money compared to buying a used/refurbished replacement.

If the T-Con board is the only failing component and you source a **high-quality, compatible replacement**, this repair can be a **smart investment**. However, proceed with caution, especially if you lack technical experience. For most users, **professional repair or a trusted seller** is the safest route.

Details:

Genuine Sony TV T-Con Board 400WTC4LV3.4.

part #: 400wtc4lv34 prices

• $17.96-$24.99

specifications tvboardgo:

• brand: Sony
• mpn: 400wtc4lv34
• compatible brand: For Akai
• type: T-con Board
• unit type: Unit
• compatible model: Kdl-40s3000

seller tvboardgo:

• rating: 100.0%
• city: Las Vegas, Nevada
• # reviews: 681

payments tvboardgo:

• wallet: Google-pay
• other
• credit card: Mastercard

general tvboardgo:

• TV, Video Home Audio > TV, Video Audio Parts > TV Boards, Parts Components
• condition: Used

shipping tvboardgo:

• service: USPS Ground Advantage
• class: Standard
• transit: 4-9 Days
• carrier: USPS
• cost: $0.00
• type: Fixed

returns tvboardgo:

• paid by: Buyer
• time: 14 Days
• policy: Returns Accepted
• method: Money back

offer tvboardgo:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: February 22, 2026
• sold: 0

Sony 400WTC4LV34 Is Similar To:

• 0140ac010106 Unknown Sony Main Video Board Motherboard Unit Coax 666628095011 (26.4% similar) Type: main video board motherboard unit model: KDL-60EX645 part number: 0140AC010106 CONTENTS01: mpn: important note the is still tested, functional and guaranteed to work except the following:the coaxial antenna port either not working or broken off. If standby light is on try other boards above in...(June 21st, 2018)
• 0160ac1b0101 Sony 1-895-402-31 Main Board (32.3% similar) Sony 0160AC1B0101 main board KDL-60R550A KDL-70R550A...(May 10th, 2017)
• 02jt43t Sony T-con Board (42.1% similar) That means less resources and waste are cluttering up the earths environment. This Sony 02JT43T t-con board is used and in good working order. Electronics cafe is a wholly owned resale outlet of waste, an r2 Rios and naiad certified it asset disposition value recovery organization. Every inquiry is ...(June 8th, 2017)
• 072-0001-3090 Sony Power Supply Board (27% similar) Parts are sold as shown in the pictures...(July 11th, 2017)
• 1-439-416-41 1-439-416-61 Hr 7244 Sony New Genuine Flyback Hv Transformer (30.4% similar) Not surplus junk you are a 1 er big asset. I value every single buyer. Item was shipped quickly and just as described, honest dealer. Whether or not an article is new, I use the same care inspecting, detailing restoring it, as preparing listing you are reading now. A pleasure to deal with. I sell ...(January 28th, 2019)
• 1-439-524-11 143952411 Sony New Nib Genuine Flyback Hv Transformer (32.2% similar) You cannot pretend buying this board and then just use it to troubleshoot your television. Incredibly well packed item, precise and prompt communication, mint-condition item a positive overall experience. As described. Item was shipped quickly and just as described, honest dealer. Not surplus junk ...(January 28th, 2019)
• 1-458-853-11 Sony Bluetooth Module Board New (35.4% similar) Gets you noticed. Compatible model's: XBR55X900C XBR65X850C XBR65X900C XBR55X850C XBR75X850C XBR49X830C XBR55X810C XBR65X810C XBR75X910C XBR65X930C XBR43X830C XBR75X940C XBR75X940D XBR75X850D XBR55X855D XBR65X855D XBR75X855D XBR75X857D XBR49X800C XBR65X850D XBR55X850D. Sony WI-fie Bluetooth module ...(September 30th, 2018)
• 1-458-966-11 Sony Wifi Wlan Board (32.9% similar) WiFi board from new unused tv that had damaged screen due to shipping...(September 7th, 2018)
• 1-468-936-12 Sony Lamp Ballast Board (27.3% similar) Lamp ballast board. KDS-R60XBR1...(October 30th, 2018)
• 1-474-089-11 Sony Power Supply Board See List (28.9% similar) Pulled from working unit. Tami n Sucre base a la carat informative para events de descent. Also subscribe to news letter for discount events. Nita: el tempo de envy o Purdue verier candor SE solicits fin seaman yaws festivals. Recurred: primer, used, Como compressor de la pizza, accept fungi n del ...(August 19th, 2018)
• 1-474-095-12 Sony Dps-250ap-34 G2d Board (34.8% similar) Feel free to. Often times there are tv model's that use more than one set of parts and or panels...(July 16th, 2017)