Introduction
This manual provides comprehensive instructions for the Redi-Remote replacement remote control, specifically designed to operate Onkyo units RC-438DV and DV-S939. This is a custom-built replacement remote and is not an original Onkyo product. It is engineered to perform all essential functions of the original remote for the specified models.
Setup
Battery Installation
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards to open it.
- Insert four (4) 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.
Initial Use
This Redi-Remote replacement control requires no programming. Once batteries are installed, it is ready for immediate use with compatible Onkyo RC-438DV and DV-S939 units.
Operating the Remote Control
Button Layout Overview
The remote control features a logical button layout for intuitive operation. The upper section contains primary control buttons, while the lower section, accessible by sliding down a panel, provides advanced functions for media playback and settings.

Image: Front view of the Redi-Remote replacement remote control. The upper half features power, menu, volume, channel, and number buttons. The lower half, covered by a sliding panel, reveals media playback, setup, and additional function buttons.
Upper Section Buttons
| Button | Function |
|---|---|
| PWR | Power On/Off for the Onkyo unit. |
| TOP MENU | Accesses the main menu of the connected device. |
| SLEEP | Activates or adjusts the sleep timer function. |
| ZOOM+ / CH+ | Increases zoom level or navigates to the next channel. |
| STANDBY / TV/VIDEO | Puts the unit in standby mode or switches between TV and video inputs. |
| DISP/NAVI / DISP | Displays on-screen information or navigates menus. |
| VOL- / VOL+ | Decreases or increases the volume level. |
| MUTE | Mutes or unmutes the audio output. |
| MENU | Accesses the device's menu system. |
| CH- / ZOOM- | Decreases zoom level or navigates to the previous channel. |
| ZOOM ON | Activates or deactivates the zoom feature. |
| RECALL | Recalls the previously viewed channel or input. |
| Number Buttons (0-9) | Direct input for channel numbers or menu selections. |
| +10 / 100 | Used for entering two-digit or three-digit channel numbers. |
| SEARCH | Initiates a search function. |
| ENT (Enter) | Confirms a selection or input. |
Lower Section Buttons (Slide Down Panel)
To access the advanced functions, slide the lower panel of the remote control downwards. This reveals additional buttons for media playback, audio/video settings, and other specific features.
| Button | Function |
|---|---|
| DVD | Selects the DVD input source. |
| VIDEO 1 / VIDEO 2 / VIDEO 3 | Selects the corresponding video input source. |
| AUDIO | Selects the audio input source. |
| ANGLE | Changes the viewing angle on compatible DVDs. |
| SUBTITLE | Toggles subtitles on/off or cycles through subtitle options. |
| OPEN/CLOSE | Opens or closes the disc tray. |
| RETURN | Returns to the previous menu or screen. |
| SETUP | Accesses the setup menu for the device. |
| PROG-RESSIVE (Progressive Scan) | Activates or deactivates progressive scan output. |
| V.REMOTE | Function specific to virtual remote or advanced control. |
| PLAY | Starts playback. |
| ENTER | Confirms selections within menus. |
| Directional Arrows (Up, Down, Left, Right) | Navigates through menus and options. |
| REWIND / FAST FORWARD | Rewinds or fast forwards media playback. |
| PREVIOUS / NEXT | Skips to the previous or next track/chapter. |
| STOP | Stops media playback. |
| SLOW | Activates slow-motion playback. |
| PAUSE/STEP | Pauses playback or advances frame by frame. |
| DIMMER | Adjusts the brightness of the unit's display. |
| CLEAR | Clears current input or selection. |
| RANDOM | Activates random playback mode. |
| MEMORY | Stores or recalls settings/preferences. |
| REPEAT | Repeats current track, chapter, or disc. |
| - STILL + | Adjusts still image settings. |
| DNR (Digital Noise Reduction) | Toggles or adjusts digital noise reduction. |
| A-B | Repeats a specific section between points A and B. |
Maintenance
Cleaning
To clean the remote control, wipe it gently with a soft, dry cloth. Do not use liquid cleaners, abrasive materials, or chemical solvents, as these may damage the remote's surface or internal components.
Battery Replacement
Replace batteries when the remote's performance degrades or it stops responding. Always replace all four AAA batteries at the same time with new ones. Dispose of old batteries responsibly according to local regulations.
Troubleshooting
- Remote not responding:
- Ensure batteries are inserted correctly with proper polarity.
- Replace old batteries with new ones.
- Ensure there are no obstructions between the remote and the Onkyo unit's infrared sensor.
- Confirm the remote is pointed directly at the unit.
- Limited range:
- Check battery strength; weak batteries can reduce range.
- Ensure no strong light sources (like direct sunlight or fluorescent lights) are interfering with the IR signal.
- Specific buttons not working:
- Clean the remote's surface, especially around the non-working buttons, to remove any dirt or debris.
- If only lower panel buttons are affected, ensure the panel is fully slid down.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 7 x 2.5 x 1 inches |
| Item Weight | 5 ounces |
| Batteries Required | 4 AAA batteries |
| Connectivity Technology | Infrared (IR) |
| Max Number of Supported Devices | 1 |
| Special Feature | No Programming Required |
| Compatible Devices (as per specifications) | Projector |
Note: While specifications list 'Projector' as a compatible device, this remote is specifically designed and tested for Onkyo RC-438DV and DV-S939 units as stated in the product description.
Support
If you encounter any issues or have concerns regarding the remote control after purchase, please contact the seller directly for assistance. Direct contact ensures the quickest resolution for any product-related inquiries.