Introduction
This manual provides instructions for the Tekswamp Replacement Remote Control, designed for use with the Sony CDP-CX400 device. This remote control offers most of the original commands for your device without requiring additional programming. It is specifically compatible with the Sony CDP-CX400 model.
Setup
Battery Installation
The remote control requires two AAA batteries (not included) for operation. Follow these steps to install the batteries:
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards or outwards to open it.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

The remote control's electrical circuit is designed for low power consumption, allowing it to function even when batteries are nearing the end of their life cycle.
Operating Instructions
Basic Functions
This remote control is guaranteed to perform essential functions for your Sony CDP-CX400 device:
- Power On/Off: Use the designated power button to turn your device on or off.
- Input Signal Selection: Access and select various input signals.
- Menu Navigation: Utilize the directional arrow buttons and the 'OK' button to navigate through your device's menu system.
The remote provides most of the original commands. Some specific functions, such as page flip, keystone correction, video adjustment, and number input, are typically available. However, in rare instances, these functions may not operate as expected with certain devices. Please note that this remote control does not include a laser pointer function.
Button Layout Overview

The remote features a compact, rectangular body with comfortable, easy-to-reach buttons. The buttons are designed to be responsive without being overly sensitive, preventing accidental signals and ensuring durability.

Maintenance
Cleaning
To clean the remote control, use a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as these can damage the remote's surface or internal components.
Battery Replacement
Replace batteries when the remote's responsiveness decreases or if the ON Indicator light does not illuminate consistently. Always replace both batteries at the same time with new AAA batteries. Dispose of old batteries according to local regulations.
Storage
Store the remote control in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries to prevent leakage.
Security Screw
The remote control includes a security screw feature to prevent unauthorized access to small internal parts, enhancing child safety by mitigating choking hazards.
Troubleshooting
- Remote not responding:
- Check if the batteries are installed correctly with the correct polarity.
- Replace old batteries with new ones.
- Ensure there is a clear line of sight between the remote control and the device's infrared receiver. Obstructions can block the signal.
- Confirm that the ON Indicator light illuminates when a button is pressed. If not, batteries may be dead or incorrectly installed.
- Specific functions not working:
- While the remote provides most original commands, some advanced or less common functions (e.g., page flip, keystone correction) may not be fully supported or may behave differently depending on the specific device model.
- Refer to your device's original manual for specific function details.
Specifications
| Brand | Tekswamp |
| Model Name | 5921473b-6439-4aee-9be7-0f8ff47d5a62 |
| Connectivity Technology | Infrared |
| Compatible Devices | Sony CDP-CX400 (Stereo System) |
| Battery Type | AAA |
| Number of Batteries Required | 2 |
| Maximum Range | 7 meters |
| Button Quantity | 31 |
| Item Weight | 2 ounces |
Warranty Information
For specific warranty details regarding your Tekswamp Replacement Remote Control, please refer to the documentation provided at the time of purchase or contact the seller directly. Warranty terms and conditions may vary.
Support
If you encounter any issues or have questions not addressed in this manual, please contact the seller or manufacturer for assistance. Provide your product model number (5921473b-6439-4aee-9be7-0f8ff47d5a62) and purchase details when seeking support.