Instruction Manual
850P Reference Dual-Mono Preamplifier 
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18 
Remote Control Operation 
The  MOON 850P Dual-Mono preamplifier uses the ‘FRM-3’ full function, all 
aluminum backlit remote control (figure 5). It operates on the Philips RC-5 
communication protocol and is can be used with other MOON components such 
as CD Players, DAC’s, Integrated Amplifiers, as well as other Preamplifiers. 
The ‘FRM-3’ remote uses three AAA batteries (included). To install them, use a 
Phillips head screwdriver #1 to remove the three screws located on the rear 
plate; insert the batteries in the correct direction and then screw the rear plate 
back into place. 
To operate the 850P with this remote control, you must first press the AMP 
button located on the second row from the top. 
The 
 power button switches the 850P between ‘Standby’ and ‘On’ mode. 
The Balance W and  Balance X buttons control channel balance; Pressing the 
left arrow button causes a decrease in the volume level of the right channel; 
pressing the right arrow button causes a decrease in the volume level of the left 
channel. The balance adjustment operates in 1% increments. When the balance 
is equal for both channels, “Å 00 Æ” will briefly appear in the front panel 
display. The range for the balance control varies from “Å 100” for left channel 
only to “100 Æ” for right channel only. 
The  Input  S and Input  T buttons allow you to sequentially scroll through 
each of the preamplifier’s inputs, performing the identical function as the ‘Input’ 
buttons located on the 850P’s front panel 
The Mute button, located between the input and volume buttons, reduces your 
volume setting to zero, performing the identical function as the ‘Mute’ button 
located on the 850P’s front panel. 
The VolS and VolT buttons increase and decrease the volume level. From 30 
to 80dB, holding either button down results in 1.0dB volume changes; 
repeatedly pressing either button very briefly results in 0.1dB volume changes. 
The  Disp button allows you to adjust the brightness of the digital display 
window. It also provides you with the option of turning off the display, 
performing the identical function as the ‘Display’ button located on the 850P’s 
front panel. 
Mon engages (and disengages) the Monitor loop, performing the identical 
function as the ‘Monitor’ button located on the 850P’s front panel.
Figure 5: FRM-3 Remote Control 










