VDO CD 3300 User Instructions page 2

CONNECTOR A (fig. 2)
POWER SUPPLY CONNECTIONS
• Brown wire A8: Connect to an earthing point on the car body.
• Red wire A7: Connect to a permanent 12 V supply. This is the main power supply.
Ensure this connection can handle a current of 10 A.
• Yellow/red wire A4: Connect to the switched 12 V supply of the car ignition.
This connection set up will enable you to make full use of the ON/OFF LOGIC function of this
set limiting the use of the set to 1 hour after removal of the ignition key. If this feature does
not appear to be functioning as expected you may require an adapter cable. See reverse of
installation card.
OPTIONAL CONNECTIONS FOR CONNECTOR A
ELECTRONIC / MOTOR AERIAL
• Connect the supply for an electronic aerial or the control wire for the relay of an automatic
motor aerial to pin A5. Use the small contact supplied.
Do not use this connection point for direct supply of the aerial motor!
PILOT LIGHT
When the car headlights are switched on, the backlight to the power key remains illuminated
(even when the radio is switched off). With this connection when the set is on, the brightness
of the display is reduced.
• Connect pin A6 to the dashboard illumination wiring of your car.
Use the small contact supplied.
SDVC AND SPEED WARNING
Speed Dependent Volume Control automatically increases and decreases the volume of the set
as a result of the car's speed.
Speed Warning can be used to inform you that you are exceeding a certain speed.
• Connect pin A1 to a signal from the speedometer of your car. Some cars are already
prepared for it (e.g. certain VW & Vauxhall/Opel cars) please consult your dealer.
If not, you may need a more detailed installation requiring extra equipment to enable
A
your car to become compatible. This can only be accomplished by persons familiar
with automotive electrical and mechanical systems.
After connection see 'SPECIAL FUNCTIONS'.
SDVC
GB
3