Rega P8 Mode D'emploi page 5

Neo PSU speed adjustment
Note: We recommend the Rega strobe kit to accurately measure the speed during adjustment (sold separately).
Note: The speed is adjusted whilst running at 331/3 RPM and any adjustments made at 331/3 RPM will be automatically be applied to
45 RPM.
1. Select 331/3 RPM.
2. Press the 'speed programme' switch on the rear panel once to put the unit into setup mode - The 'programme mode' LED will
now be permanently illuminated red.
3. Adjust the speed via the 'speed adjustment' control using a 1.7 mm allen key. Turning clockwise will increase the speed and
turning counter clockwise will decrease the speed. The step size is 0.01 RPM. Only make small adjustments of up to five 'steps'
at a time to ensure accurate adjustment. Check the speed after each adjustment to achieve the best accuracy.
4. When the speed has been correctly set, press the 'speed programme switch' once to put the unit back into 'run mode'. The
'programme mode' LED will now go out and flash approximately every ten seconds indicating the speed has been changed
from the factory setting. Your turntable is now set and ready to use.
Returning the Neo to factory settings
This process is recommended when fitting a new drive belt to your turntable or after a service to help optimise the range of
adjustment available to you.
1. Select 331/3 RPM.
2. Press and hold down the 'speed programme' switch until the 'programme mode' LED flashes every few seconds. Keep the
button pressed until a solid LED is illuminated.
3. Whilst illuminated, press the 'speed programme' switch button once again to fully factory reset and return to 'run mode'.
Note: We recommend changing Rega drive belts every five years to guarantee optimum performance. Using the Neo with old, worn
belts may result in lower performance and variation in speed stability.
Use of mobile phone apps to check and adjust the speed
Rega, along with a London mastering studio, have used the iPhone 'RPM' app (available on the App Store) developed by Philip Broder
to check and adjust the speed of a turntable using the Neo, with positive results. We have verified the basic accuracy of the 'RPM'
app using Rega's in-house speed measuring equipment, but as this is a third-party app, we cannot guarantee the readings because
of uncertainties, which could be caused by the age, condition, and operating system of the phone the app is installed on. If you are
in any doubt, you should check the calibration of the 'RPM' app using a suitable reference.
Rega Strobe and stroboscopic disc (sold separately)
The best way to adjust the speed of your Planar 8 is to use the Rega Stobe kit. A stroboscopic disc is an optical instrument used
to measure the speed of the turntable by freezing the bars on the disc. The bars are illuminated by an accurate, quartz locked LED
pulsing at 100 Hz.
Using the Strobe kit
Simply place the strobe disc on the turntable platter. Switch on the 100 Hz LED and hold it approximately 2 cm above the rotating
strobe. If the bars do not appear to move and are stationary, the speed is 331/3 RPM. If they move clockwise, the turntable is running
fast, and conversely, if they move anti-clockwise, the turntable is running slow.
If over one minute the bars appear to move by one bar to the left or one bar to the right, the speed is 0.016% fast or slow
respectively. Using the speed control on the Neo, it is possible to achieve +/- 0.05% or +/- 1.3 RPM.
Note: If over one minute the bars appear to move by two bars to the left or by two bars to the right, the speed is 0.01 RPM fast
or slow respectively. Using the speed control on the Neo, it is possible to achieve +/- 0.01 RPM, which is one step of the speed
adjustment.
Warning: Because of the nature of the stroboscopic effect of the disc and the LED light, we strongly recommend anyone with
photo-induced epilepsy not to use this device. Although this condition is very rare, we must make the user aware of this condition.
Ask your dealer for assistance if required.
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