CA-901 LCD Tv Switch Power Supply Module for Display Maintenance

CA-901 LCD TV Switch Power Supply Module for Display Maintenance is a highly versatile, high-performance replacement solution designed to repair and restore the power stages of LCD and LED televisions ranging from 12 to 46 inches. This universal module replaces damaged primary power supply controllers and MOSFETs, offering a reliable fix for screens facing power failures or unstable voltage outputs. Consequently, technicians can avoid the high cost of replacing an entire motherboard by simply integrating this compact switching unit into the existing circuit. Utilizing an advanced sampling technique and high-speed switching frequency, the CA-901 ensures stable DC output and protects sensitive display components from voltage spikes. Furthermore, its simple five-wire installation method makes it an essential tool for professional display maintenance. Therefore, you can efficiently upgrade or repair power systems in monitors and televisions using this robust, energy-efficient module.

Key Features:

• Universal Compatibility: This module supports a wide range of display sizes from 12 to 46 inches, making it a flexible choice for various TV and monitor brands.
• High Power Output: It delivers a maximum output power of up to 100W, which provides sufficient energy for large-screen LED backlights and logic boards.
• Five-Wire Simplified Design: The streamlined wiring interface reduces installation time and minimizes the risk of connection errors during the repair process.
• Integrated Protection: Built-in circuitry guards against over-current and short-circuit conditions. However, users must ensure proper heat sinking for long-term reliability.
• Stable Regulation: The sampling feedback loop maintains precise voltage control, ensuring the display remains flicker-free and stable.

Technical Specifications:

• Input Voltage Range: ≈ 220 V_AC (Rectified to 300 V_DC at the filter capacitor)
• Output Voltage Support: 12 V and 24 V systems
• Maximum Output Power: 100 W
• Switching Frequency: ≈ 65 kHz
• Operating Temperature: −20°C to +85°C
• Efficiency: ≥ 85%

Mechanical Specifications:

• Module Type: Universal Flyback Switching Power Supply Module
• Substrate: High-temperature resistant FR-4 PCB
• Cooling Requirement: Attaches directly to the original equipment heatsink via the integrated power transistor.
• Wiring Type: Pre-soldered color-coded flexible leads

Dimensions:

• Board Length: ≈ 35 mm
• Board Width: ≈ 28 mm
• Total Thickness: ≈ 15 mm (including components)
• Lead Length: ≈ 100 mm to 150 mm

Pinout and Wiring:

• Red Wire (Drain): Connect this to the Drain pin of the original power MOSFET or the primary winding of the transformer.
• Black Wire (GND): Attach this lead to the negative terminal of the 300V large filter capacitor (Hot Side Ground).
• Green Wire (VCC): Connect to the auxiliary supply voltage pin (typically 12V-18V) that powers the original IC.
• White Wire (FB): Solder this to the feedback pin of the optocoupler (usually pin 4) to enable voltage regulation.
• Yellow Wire (Source): Connect to the source pin of the original MOSFET or the negative side of the primary winding.

Datasheet Reference:

• Download CA-901 Universal Power Supply Module Reference Sheet

Commonly Used in:

• LCD/LED TV Repair: Technicians frequently use this module to bypass failed internal power supply units (PSU).
• Computer Monitors: Ideal for restoring power to 1080p and 4K desktop displays with external or internal power boards.
• Industrial Displays: Useful for maintaining power systems in CNC monitors or POS terminals where original parts are obsolete.

Applications:

• Power Supply Retrofitting: Replacing outdated or irreparable switching controllers with a modern, efficient alternative.
• Prototype Power Stages: Providing a quick DC power source for heavy-duty embedded system testing.
• Maintenance Training: Serves as an excellent instructional component for teaching switch-mode power supply (SMPS) troubleshooting.

Equivalent Models:

• CA-888: A similar three-wire universal module designed for smaller screens, however, it supports lower power levels.
• CA-901 Plus: An enhanced version with improved thermal management for high-brightness 55-inch panels.
• VIPer22A Based Modules: Common low-power alternatives, although they lack the wide-range compatibility of the CA-901.

Package Includes:

• 1 x CA-901 LCD Tv Switch Power Supply Module with Color-Coded Leads