SONY 1-457-141-21 Power Supply Board Tv

( Brand: Sony ), ( Manufacturer Part Number: 1-457-141-21 ), ( Compatible Brand: For Sony ), ( Type: Power Supply Board )

Review SONY Power Supply Board Replacement Tv

The **Sony 1-457-141-21 Power Supply Board** is a critical, high-performance component designed exclusively for select Sony television models, ensuring seamless power distribution and optimal functionality for your display system. This precision-engineered board is a vital part of the TV s internal electronics, responsible for converting and regulating the incoming AC power into the precise DC voltages required to power the backlighting, tuners, processors, and other essential circuitry within the set. Built to Sony s rigorous standards, this power supply board features a robust design with high-quality capacitors, MOSFET transistors, and voltage regulators that work in tandem to deliver stable, efficient power delivery while minimizing heat generation and electrical noise. Its compact yet durable construction ensures compatibility with the tight confines of modern flat-panel TVs, making it an indispensable replacement for damaged or failing original units. Whether your television is experiencing intermittent power loss, flickering backlights, or complete shutdowns, this genuine Sony part offers a reliable solution, restoring your display to full operational capacity with minimal setup required. Ideal for technicians and DIY enthusiasts alike, the 1-457-141-21 board is a direct-fit replacement, maintaining the original performance and longevity of your Sony television while adhering to the manufacturer s exact specifications.

### Pros and Cons of buying a Sony 1-457-141-21 Power Supply Board for a TV

1. **Compatibility** This is an official or high-quality third-party replacement part designed specifically for Sony TVs, ensuring it fits seamlessly without modification. It is intended for models that use this exact power supply board, such as certain Sony Bravia series (e.g., KDL-40V3500, KDL-46V3500, or similar models from the late 2000s to early 2010s).

2. **Reliability** Sony s power supply boards are generally well-built, and a genuine or reputable third-party replacement should provide stable power delivery, reducing the risk of flickering, shutdowns, or damage to other components.

3. **Warranty (if applicable)** If purchased from an authorized dealer or a seller offering a warranty (e.g., Amazon Renewed, eBay with return policies, or Sony s official support), you may have some recourse if the part fails prematurely.

4. **Prevents Further Damage** A faulty power supply can damage other internal components (e.g., backlight, tuner, or motherboard). Replacing it early can save money on more extensive repairs.

5. **Ease of Installation** Power supply boards are relatively straightforward to replace, especially if you have basic electronics experience or access to a technician. Many users report successful DIY replacements with minimal tools.

6. **Cost-Effective Fix** Replacing a power supply board is often cheaper than buying a new TV, especially for older models where parts are no longer manufactured by Sony.

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1. **Age of the TV** If your TV is very old (e.g., pre-2010), finding compatible parts may become increasingly difficult over time, and the cost of labor for installation could outweigh the part s price.

2. **Third-Party Quality Concerns** While some sellers offer high-quality replacements, others may provide counterfeit or low-quality parts that fail quickly or pose fire hazards. Always buy from reputable sources (e.g., Amazon, eBay with positive reviews, or authorized repair shops).

3. **Labor Costs** If you re not comfortable with electronics, hiring a technician to install the part will add to the total cost. Labor fees for TV repairs can range from $50 to $150 or more, depending on location and complexity.

4. **Limited Availability** Sony has phased out support for many older models, so finding the exact part (1-457-141-21) may require searching for "universal" or "compatible" alternatives, which might not be identical.

5. **Potential for Other Issues** Even with a new power supply, other components (e.g., capacitors, backlight, or motherboard) may be degraded. If the TV was off for a long time, moisture or dust could have caused further damage.

6. **Voided Warranty (if applicable)** If your TV is still under warranty (unlikely for models this old), replacing the power supply with a third-party part may void any remaining coverage.

7. **Safety Risks** Power supplies deal with high voltage. If you re not experienced with electronics, improper handling could lead to electric shocks or fires. Always disconnect the TV from power before working on it.

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The Sony 1-457-141-21 power supply board is a viable replacement for fixing a non-functional TV, provided the TV is compatible and the part is sourced from a trusted seller. The decision to buy it depends on factors like the TV s age, your technical comfort level, and whether other components are still functional. If the TV is otherwise in good condition and the power supply is confirmed as the issue, replacing it is a cost-effective solution. However, if the TV is very old or other parts are failing, the long-term value may not justify the repair.

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1. **Verify Compatibility** Double-check that your TV model (e.g., KDL-40V3500, KDL-46V3500, etc.) uses this exact part. Sony s part numbers can vary slightly by region or model variant.

2. **Buy from a Trusted Source** Purchase from sellers with high ratings (e.g., Amazon, eBay with 4 stars, or authorized repair shops). Avoid unknown marketplaces or sellers offering parts at suspiciously low prices.

3. **Consider Professional Installation** If you re not experienced with electronics, hire a technician to replace the power supply. This ensures safety and reduces the risk of further damage.

4. **Check for Other Faults** Before buying, inspect the TV for signs of other issues (e.g., bulging capacitors, burnt smells, or dead pixels). If the TV has multiple problems, repair may not be worth the cost.

5. **Compare Costs** Calculate whether replacing the power supply is cheaper than buying a used/refurbished TV of similar size. For example, a 40-inch Sony from 2010 might cost $100 $200 used, while a new power supply could be $50 $150 plus labor.

6. **Test the Part Before Finalizing** If possible, request a returnable or money-back guarantee to ensure the part works before committing.

**Final Verdict:** If your TV is compatible, the power supply is the confirmed issue, and you re confident in the source or installer, replacing it is a practical fix. However, weigh the costs and risks carefully, especially if the TV is older or has other underlying problems. For most users, this part is worth buying if the TV is otherwise functional.

Details:

Sony power supply board 1-457-141-21 replacement for Sony tv.

part #: 145714121 price

• $45.94

specifications tvboardgo:

• brand: Sony
• mpn: 1-457-141-21
• compatible brand: For Sony
• type: Power Supply Board

general tvboardgo:

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

shipping tvboardgo:

• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• carrier: USPS
• transit: 6-10 Days
• cost: $9.20

payments tvboardgo:

• other
• wallet: Apple-pay
• credit card: Discover

seller tvboardgo:

• city: Plant City, Florida
• rating: 100.0%
• # reviews: 7

returns tvboardgo:

• policy: No Returns

offer tvboardgo:

• best offers: True
• started: February 14, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock

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