Power jack for Lenovo T Series / R Series — extra digital PJ340668 (replacement DC power connector)

Replacement DC power jack compatible with Lenovo T Series and R Series laptops, model extra digital PJ340668. Designed to replace a damaged or worn DC power connector, this power jack restores a secure electrical connection between the AC adapter and the laptop, enabling reliable charging and stable operation. The component is intended for in-place replacement inside the laptop chassis and is suitable for both professional repair technicians and experienced users performing DIY maintenance.

Advantages

The power jack provides a direct replacement for failed or loose DC connectors, reducing the need to replace the entire adapter or motherboard. It is manufactured to match mechanical dimensions and electrical contact points used in compatible Lenovo T and R Series models, ensuring consistent fit and contact reliability. Using the correct replacement connector helps maintain charging stability, prevents intermittent power loss, and extends the usable life of the laptop without major component overhaul.

Suitable for (tasks / use cases)

• Repairing damaged or loose DC power input on Lenovo T Series laptops
• Repairing damaged or loose DC power input on Lenovo R Series laptops
• Workshop repairs and professional laptop servicing
• DIY laptop maintenance by experienced users comfortable with disassembly
• Restoring charging functionality without replacing the AC adapter or motherboard

Key specifications

• Type: DC power jack (replacement internal connector)
• Compatibility: Lenovo T Series and R Series laptop models
• Contact configuration: standard center-pin DC connector layout used by compatible models
• Mounting: internal chassis-mounted connector designed for solder or cable harness connection (model-specific)
• Material: metal contacts with insulating housing designed for electrical durability
• Function: restores power input and charging connection

How to use

Power off the laptop, disconnect the AC adapter and remove the battery if it is user-accessible. Open the laptop chassis according to the service manual for the specific Lenovo model to access the existing DC jack. Desolder or disconnect the faulty connector from the motherboard or cable harness and install the replacement jack, ensuring correct orientation and secure electrical contacts. Reassemble the laptop and test charging and power delivery with a compatible AC adapter to confirm correct installation.

Usage recommendations

Use appropriate electrostatic discharge (ESD) precautions and follow the manufacturer's service instructions for the specific Lenovo T or R Series model. If you are not experienced with laptop disassembly and soldering, consult a professional repair technician to avoid further damage.