REGA Fono MC User Manual

Fono MC

The Fono MC diskstage is designed to amplify the signal
from a moving coil cartridge to a level which can feed
into a 200mV line level input on a standard hi-fi amplifier
i.e. with CD, Tuner and Tape Inputs.

The Fono MC Input sensitivity, capacitive and resistive
loading can be set to four different levels. These levels
should match most MC cartridges, which have an output
level of 150 to 600µV and a loading requirement of 70 to
400Ω in parallel with 1000 to 4200pF.

Method of connection

Input

Connect the tonearm leads and earth (if used) to the
input socket and to the earth terminal on the back of the
Fono.

To change the Input loading and Gain (sensitivity)

(1) Remove the two Pozidrive screws on the back of the
unit.
(2) Holding the Earth terminal, pull the back of the unit
away from the case.
(3) Withdraw the back and PCB by approximately 8cm
from the case.
(4) There are four "DIP" switches on the PCB with the fol­lowing markings.

LEFT LOADING SWITCH
RIGHT LOADING SWITCH
LEFT GAIN SWITCH
RIGHT GAIN SWITCH

(5) These switches can be set to the following settings by
turning the switches to there ON or OFF positions (facto­ry setting 100Ω and 4200pF input loading).

Gain Switch Settings (Input sensitivity)

1 Off and 2 off = 150uV
1 On and 2 off = 300uV
1 Off and 2 on =460uV
1 On and 2 on = 600uV

Loading Switch Settings
Resistance loading

1 Off and 2 Off = 400Ω
1 On and 2 Off = 100Ω
1 Off and 2 On = 150Ω
1 On and 2 On = 70Ω

Capacitance Loading

3 Off and 4 off = 1000pF
3 On and 4 off = 2000pF
3 Off and 4 on = 3200pF
3 On and 4 on = 4200pF

Output

Connect the output socket of the Fono to the line input
on the amplifier.

Power Supply

Connect the Rega PS1 to the AC socket on the Fono
back panel.

WARNING: We advise you to turn the Fono diskstage
on first and then the amplifier last. This is because
the power surge in the Fono diskstage could cause a
“power on” thump which may distress the speakers.

Specifications

Input sensitivity for 200mV output in to 50KΩ

150µV
300µV
460µV
600µV
Factory setting150µV

Input Resistance loading

400Ω
100Ω
150Ω
70Ω
Factory setting 100Ω

Input Capacitance Loading

1000pF
2000pF
3200pF
4200pF
Factory setting 4200pF

Maximum input level with 100Ω and 4200pF input
loading

150uV = 10mV
300uV = 20mV
460uV = 31mV
600uV = 40mV

Minimum Output Load Impedance = 10KΩ
Power requirements = 24VAC @ 140mA (Rega PS1)
Frequency Response (50KΩ Load) = 13Hz (-3dB) to
100KHz (-0.1dB)
RIAA accuracy (50KΩ load) = +/-0.1dB 100Hz to 100KHz

Power Supply Specifications

PS1 UK

Input....................................................230V ~ 50Hz 0.05A

Output.....................................................24V ~ 300MA AC

PS1 EU (Euro 2 pin)

Input....................................................230V ~ 50Hz 0.05A

Output.....................................................24V ~ 300MA AC

PS1 UL (American)

Input................................................................115V ~ 60Hz

Output.....................................................24V ~ 300MA AC

MC Phono Pre-Amplifier

Rega Research Limited., England