Getting the correct speed on your vinyl turntable is essential for accurate pitch and tempo. If your R512 Vintage Style Record Player is spinning too fast or too slow, your records may sound distorted. Fortunately, adjusting the speed is simple. This guide covers two methods to ensure your turntable spins at the correct RPM.
Method 1: Adjust the 33/45 RPM Knob
The easiest way to correct playback speed is by using the 33 and 45 RPM knob located next to the tonearm:
- 33 1/3 RPM – Use for standard 12-inch LPs.
- 45 RPM – Use for singles and EPs.
Simply select the appropriate button depending on the record you are playing. In most cases, this adjustment alone will fix minor speed issues.
Method 2: Adjust the Motor Speed
If the RPM knob does not fully solve the problem, you can fine-tune the motor speed for precise control. The motor drives the turntable platter, which determines how fast your vinyl spins. If the motor spins too fast or too slow, the record will play at the wrong pitch and tempo, making music sound unnatural or distorted. By adjusting the motor via the calibration holes, you can correct minor deviations caused by belt tension, wear, or manufacturing tolerances, ensuring the platter rotates at the correct RPM (33 1/3 or 45).
Tools You’ll Need
Screwdriver set (Phillips/flathead)
Small flathead (1-head) screwdriver for motor adjustment
Flashlight (optional, for better visibility)
Steps
1. Open the Bottom Panel
- Turn off and unplug the turntable.
- Loosen the 4 screws on the bottom key board (refer to numbers marked in the diagram or picture).
- Gently lift the bottom plate to access the internal components.
2. Locate the Motor
The motor is usually highlighted or circled in red in the diagram.
3. Identify the Adjustment Holes
The motor has two adjustable holes:
“L” hole → controls 33 1/3 RPM speed
“H” hole → controls 45 RPM speed
4. Adjust the Motor Speed
Insert the 1-head screwdriver into the desired adjustment hole.
Turn clockwise → decreases speed (slower)
Turn counterclockwise → increases speed (faster)
⚠️ Tip: Make small adjustments at a time and test playback after each turn to avoid over-correcting.
5. Test and Fine-Tune
- Reassemble the bottom plate lightly.
- Play a record or use a strobe disc or smartphone app to check RPM accuracy.
- Repeat adjustments until the platter spins at the correct speed.
You can also refer to our video for visual guidance.
Maintenance Tips
- Keep the motor and surrounding area clean to prevent dust from affecting speed.
- Apply a drop of light oil if the motor shaft feels dry.
- Check the belt for wear; replace if necessary to maintain stable rotation.
- Store the R512 in a dry, dust-free environment to protect both the motor and your records.
Conclusion
Adjusting the speed of the R512 All-in-One Record Player is straightforward with these two methods. Start with the 33/45 RPM knob and fine-tune the motor if needed to ensure precise playback. With proper care, your R512 will keep your vinyl sounding warm, accurate, and true to the original recording.
If issues persist, contact Retrolife customer support for assistance and watch our instructional video for a visual step-by-step guide.