CD1: CD player in kit with the Philips CD-PRO2
This kit is based on the Philips CD-PRO2 mechanism, one of
the best mechanism available. Our kit is intended for the DIY construction
of a high quality CD Player.
This are the basic part of the kit:
The two boards are supplied mounted and tested because of
their complexity. In this way all the parts are tested before shipment.
alluminium plate fo the CD-PRO2
power supply board
control and display board
wiring for the connection of the CD-PRO2 to the boards
microswitch for the cover of the CD Palyer. It stop the laser
suspension srping parts
This Philips CD-PRO2 mechanism (VAU 1254) is the evolution
of the oldest CD-PRO (VAU 1252).
The most important difference are:
Here you will find the PDF
of the mechanical drawing of the CD-PRO2.
Better centering and fixing of the CD disc
CDR e CDRW disc reading
It is 100% compatible with the oldest CD-PRO (VAU 1252)
The CD-PRO2 have 2 different output:
It is a complete CD-Player, with digital and analog output.
The analog output is a 16 bit, not intended to be a high performance output.
To increase the sonic performance we strongly suggest our external DAC:
the DAC4 with I2S interface and analog
output at 24bit.
analog 16 BIT
Alluminium plate for the mechanism:
The CD-PRO2 must be mounted in the way that it work in suspension
on its spring. This is very important because isolate the mechanism from
For this reason we supply with the kit an alluminium
plate with a specific shape for the assemblage of the suspension spring
and the isolation rubber.
You must ensure a proper fixing of the plate to your
For who need it, we can supply the cabinet CONT4
: it permit the assemblage of the CD1's kit, of the DAC4
and of the PRE4 in the way to realize
a complete CD player.
Power supply board:
We have realized four different power supply regulator to
lower as possible the interference of one with the other one. On the board
you will find the protection fuse, diode bridge and the precision voltage
regulator for every power stage.
You need four different AC power supply:
The power supply transformer are not includet in the kit:
you can use your preferred tipe of transformer or, you you prefer, you
can use our "C" nucle transformer.
8Vac / 7VA +5V for the
12Vac / 15VA +9V for the motor of the mechanism
8Vac / 7VA +5V for the
18Vac / 10VA negative voltage for the display
The total filter bypass capacitor mounted on the power
supply board is greater than 45.000uF to ensure a optimum filter. On the
motor's power supply you will find more than 15.000uF: in this way the
motor and the laser control cicuitry have a large reserve of power.
To prevent false and dangerous movements of the motor
and expecially of the laser during the power-up/power-down, Philips suggest
to first give +5V and then the +9V during the power-up, and take away the
+9V and then the +5V during the power down.
We have realized a proper circuitry that sense the power
supply directly from the AC input and make this sequence to ensure the
correct operation. This will longer the life of the CD-PRO2 mechanism.
Control and display board:
The control board is equpped with a microprocessor that manage
the DSA (six pole cable) comunication between the CD-PRO2 and the control
board. It receive the power supply from the power supply board.
The microswitch is also connected on this board.
On the front panel's side you will find the 6 buttons
to control the function of the player (STOP, PLAY, PREV, NEXT, FF, FR).
You will find also the display (pay attention to it: it's very delicate)
and the IR receiver for the remote IR control.
This board was thinked to simplify the assemblage of the
unit: all the electronics components are mounted on one side and the display,
buttons and IR receiver are mounted on the other side.
With the kit are supplied the cabled used to interconnect
the CD-PRO2 with the power suply and control boards. Every wire have a
diffent colour and in the instruction manual you will find the table of
The female connector are polarized (you can fit it in
the male connector on the CD-PRO2 only in one way) and are identified with
a colour that you will find on the CD-PRO2 mecahism also.
six wire cable for DSA
four wire cable for the power supply of the CD-PRO2
two pole female connector with 2cm of wire for the digital
four pole female connector with 2 cm of wire for the AUDIO
tree wire cable for the laser-off microswitch
With the kit you will receive all the other parts to complete
microswitch for the laser-off.
remote IR control that include the complete set of function
for the control of the cd-player.
rubber parts and seeger for the suspension system.
V. Tanaro, 18 12051
Alba - CN - Italy
Tel: +39 0173 362546
Fax: +39 0173 362546