Component Identification; Controls; Diagnostic System Cables; Electronics Module - Aston Martin DB7 Workshop Manual

The Aston Martin Lagonda Diagnostic System
Installation Instructions
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Component Identification
Base Station (Fig 1 -16)
The Base Station is a wall or bench mounted steel
unit on which up to two Portable Diagnostic Units
and a Vehicle Interface Adaptor can be stored.
Portable Diagnostic U n i t ( P D U ) (Fig 1-15)
The PDU is a hand held diagnostic tool utilising a
touch sensitive screen and serial communications
capability
Electronics Module
The Electronics Module is located behind the base
station door (Fig 1 -17) and facilitates the charging
of the PDU battery. Also contained in the module
is the CD-ROM drive (Fig 1 -23) for the storage of al I
system software. The PDU must be connected to
the electronic modu le whenever it is located on the
base station.
Vehicle interface Adaptor (VIA) (Fig 1 -14)
The VIA enables the PDU to interface with vehicle
systems not equipped with serial communications.
Vehicle Battery Adaptor (VBA)
The VBA provides the correct voltage to power the
PDU from the vehicle battery and also protects the
PDU from any interference from the vehicles
electrical systems.
Controls
The Touching the Power On button (Fig 2-2) will
switch on the unit and bringon the screen backlight.
Also note that the Power On Indicator (Fig 2-6) will
illuminate.
Touching the Power Off button (Fig 2-3) w i l l turn off
the unit, screen backlight and power on indicator.
The Touch Sensitive Screen (Fig 2-1) is used to
display information in digital or in graphic forms.
Program options are also displayed and may be
selected by touching the appropriate area of the
screen.
CAUTION: The use of sharp pointed implements
will damage the touch sensitive screen. Use only
light finger pressure to operate the PDU.
To adjust the screen contrast, rotate the contrast
control (Fig 2-4) to the required position.
In order to preserve the battery charge, the power
to the screen backlight is automatically switched
off after 5 minutes of inactivity. In this state, the
Power On indicator (Fig 2-6) remains illuminated
to indicate that the PDU is in stand-by mode.
Touching the screen will return the PDU to normal
operating mode.
Diagnostic System Cables
Cables
The cables connecting the diagnostic system
elements together and to the electronic units of the
vehicle are identified in the following illustrations.
The cables should be stowed in the base station
drawer or in the pockets of the PDU and VIA
carrying cases.
CAUTION: Care must be taken when using the
vehicle cables since they are capable of passing
high currents. Short Circuits are a fire risk.
7 5 6
Figure 2. The Portable Diagnostic Unit
9-4
May 1996