1. Introduction
This manual provides comprehensive instructions for the ZdalaMit RM-SC55 Replacement Remote Control. This remote is designed to function as a direct replacement for the original Sony RM-SC55 remote, offering full compatibility with various Sony Mini Hi-Fi Component Systems. Please read this manual carefully to ensure proper setup and operation.
2. Product Overview

Figure 1: Front view of the ZdalaMit RM-SC55 Replacement Remote Control. This image displays the layout of all buttons, including power, volume, playback controls, and function selection buttons.
The ZdalaMit RM-SC55 is a pre-programmed replacement remote control. It requires no additional setup or coding to operate with compatible Sony Mini Hi-Fi Component Systems. Its design mirrors the original remote for intuitive use.
Compatible Sony Mini Hi-Fi Component Systems:
- MHC-EC77
- CMT-HPR90
- MHC-EC55
- MHC-GX99
- MHC-EC68
- HCD-EC55
- HCD-HPR90
- HCD-EC77
- HCD-GX99
- HCD-EC68
3. Setup
3.1 Battery Installation
- Locate the battery compartment cover on the back of the remote control.
- Slide the cover downwards or press the latch and lift to open the compartment.
- Insert two (2) 1.5V AA Alkaline batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Replace the battery compartment cover by sliding it back into place until it clicks securely.
Note: Batteries are not included with the remote control. No programming is required; the remote is ready for use immediately after battery installation.
4. Operating Instructions
Point the remote control directly at the infrared sensor on your Sony Mini Hi-Fi Component System. Ensure there are no obstructions between the remote and the system.
4.1 Basic Functions
- 1/U (Power) Button: Turns the component system on or off.
- SLEEP Button: Activates or deactivates the sleep timer function.
- DISPLAY Button: Changes the information displayed on the system's screen.
- VOLUME +/- Buttons: Increases or decreases the audio volume.
- EQ Button: Cycles through equalizer presets.
- CLEAR Button: Clears current selections or settings.
4.2 Source Selection
- AUDIO IN Button: Selects the auxiliary audio input.
- CD Button: Selects the CD player function.
- TUNER FUNCTION Button: Selects the radio tuner function.
4.3 Playback Controls (CD/Tuner)
- Play (►) Button: Starts playback.
- Pause (⏸) Button: Pauses playback.
- Stop (■) Button: Stops playback.
- Skip Forward (⏭) / Skip Backward (⏮) Buttons: Skips to the next/previous track or station.
- Fast Forward (⏩) / Rewind (⏪) Buttons: Fast forwards or rewinds within a track.
- REPEAT/FM MODE Button: Toggles repeat modes for CD or FM stereo/mono mode for tuner.
- DISC SKIP Button: Skips to the next disc in a multi-disc changer (if applicable).
4.4 Tuner Specific Functions
- BAND Button: Switches between FM and AM bands.
- TUNING MODE Button: Selects manual or automatic tuning mode.
- TUNER MEMORY Button: Stores or recalls radio station presets.
4.5 Clock/Timer Functions
- CLOCK/TIMER SELECT Button: Used to select clock or timer settings.
- SET Button: Confirms clock or timer settings.
5. Maintenance
5.1 Battery Replacement
Replace batteries when the remote control's range decreases or it stops responding. Always replace both batteries simultaneously with new 1.5V AA Alkaline batteries. Do not mix old and new batteries, or different types of batteries.
5.2 Cleaning
To clean the remote control, wipe it with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical wipes, as these can damage the surface or internal components.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Remote control does not work. |
|
|
| Some functions do not respond. |
|
|
7. Specifications
- Model: RM-SC55
- Brand: ZdalaMit
- Power Supply: 2 x 1.5V AA Alkaline Batteries (not included)
- Dimensions: Approximately 5.9 x 1.57 x 0.55 inches (15 x 4 x 1.4 cm)
- Weight: Approximately 1.41 ounces (40 grams) (without batteries)
- Special Feature: Pre-programmed, no setup required
- Compatible Devices: Sony Mini Hi-Fi Component Systems (specific models listed in Section 2)
8. Warranty and Support
For any questions, concerns, or support regarding your ZdalaMit RM-SC55 Replacement Remote Control, please contact the manufacturer or your point of purchase. Please refer to your purchase documentation for specific warranty details.





