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DIGITAL ADJUSTMENT CONTROL - PCP1231

1/2 STEREO MUSIC CHANNELS 

 

DESCRIPTION

1+1 W stereo amplified control with digital volume adjustment, possibility 
of selecting two music channels, LOUDNESS, SUPERBASS, SCAN and 
SLEEP function, output for earphones and input for walkman.

NOTE: The system must be wired up separately from the electricity 
mains, according to regulations.

After making the connection, switch the main unit on and make 
sure there are two audio sources connected to the main unit 
(tuners or another external audio source).  If a telecontrol is used 
make sure the main unit uses the telecontrol by voltage (see infor-
mation on main unit).Check the position of the MONO/STEREO 
switch (10).  If both speakers have been installed in that room the 
switch will be placed on Stereo (position by defect). 

If only one speaker has been installed in that room place the swit-
ch on MONO (M). Apply ON/OFF pushbutton (5) and make sure 
the ON LED (6) comes on.  Keep the key (1) pressed 
until the music is heard at desired level and let it go.  To lower the 
music level apply Volume - key (2).

Switch control on:

 Apply ON/OFF pushbutton (5) and verify that 

the “on” LED (6) has come on.

Turn volume up:

 To increase the sound level of the music apply 

key (1).  The “on” led (6) will flash whilst this key is 
pressed or until the maximum volume is reached.

Turn volume down:

 To reduce the sound level of the music apply 

Volume – key (2).  The “on” led (6) will flash whilst this key is 
pressed or until the minimum volume is reached.

Superbass function:

  The default control comes with the 

Loudness option (“on” led (6) on red); if you want greater bass 
enhancement, apply (1) and volume – (2) keys at the 
same time, thus activating the Superbass function (“on” led (6) 
will turn green).

Switch control off:

 To switch the control off, lightly press the ON/

OFF pushbutton (5) and verify that the “on” LED (6) goes off.

SLEEP function:

 If you wish to activate the SLEEP function 

(timed off) instead of pressing it lightly (which turns it off imme-
diately), keep the key pressed down until the “on” LED starts to 
flash, thus indicating the SLEEP activation.  The control will go off 
automatically after about 30 minutes.  If, with the SLEEP function 
activated, we press the ON/OFF key again, the control will go off 
immediately.

Note: Whilst the SLEEP function is activated, all the other 
functions of the control will remain operative.

SCAN function:

 

If the musical signal comes from a SONELCO tuner 

and the SCAN line is connected, the station can be selected by applying 
the SCAN button (9) (the “on” led (6) will flash whilst the key is pressed 
down).

 

GENERAL CHARACTERISTICS

Electronic ON/OFF switch
Luminous ON/Sb indicator /Two-coloured LED type 
Key pressed luminous indication (Vol+, Vol- and SCAN)
100-stage digital volume control with memory of selected position  
with main unit in operation. 
Integrated audio processor.
Microprocessor-controlled progressive Loudness and Superbass
SCAN function, (remote change of radio station in a SONELCO 
tuner)
SLEEP function (the control switches itself off after 30/60 minutes)
Selection of two music channels, with light indicating channel selec-
ted.
Output for stereo earphones, with disconnection of speakers.
Input for outside audio signal (Walkman) for amplification through  
speakers, with automatic disconnection of line signal.
Telecontrol by voltage

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CONNECTION

 

OPERATION

Before connecting, make sure the system’s main power supply unit is 
switched off. Insert the control in the metal base plate and make the 
connection according to the following instructions:

TERMINALS

  1 

-  SCAN. Connect to Scan line

  2 

-  Input + 16V supply

  3 

-   16 V, after switch

 4 

-  Ground 

  15 

-  Left channel audio 1 input

  16 

-  Right channel audio 1 input

  25 

-  Left channel audio 2 input

  26 

-  Right channel audio 2 input

  - 

-  Common ground for speakers

  L+ 

-  Output for left speaker

  R+  -  Output for right speaker

4FA022401

1 - Raise volume/sb push-button
2 - Lower volume/sb push-button 
3 - 3.5 mm jack connector for Walkman input.
4 - 3.5 mm jack connector for earphone output
5 - ON/OFF/SLEEP pushbutton
6 - Operation indicator light 
7 - Music channel indicator light
8 - Music channel change pushbutton
9 - SCAN pushbutton 
10 - MONO / STEREO switch

VERIFICADO

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