MAC TOOLS Mentor Touch ET750, Operating Instructions Manual

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1 689 989 285 2020-02-24
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Robert Bosch GmbH
Initial commissioning | ET750 | 13 en
4.6.1 Notes on control unit diagnosis
The ET650 is supplied with voltage either via the
power supply unit provided or the OBD interface in the
vehicle.
!
If a test step involves starting the engine, the
battery voltage may drop to such an extent that
supply via the vehicle is no longer guaranteed. In
such cases it may be necessary to run the ET650 by
way of the power supply unit.
i
On some vehicles, the ignition must be switched on
for power to be supplied via the OBD interface.
Connection to the diagnostic interface in the vehicle is
done using the OBD connection cable (fig. 6, item. 2).
!
Make sure the OBD connection cable is properly
connected to the ET650. Incorrect connection
could cause the pins of the plug to bend or break
off. Only use the OBD connection cable contained
in the scope of delivery of the ET750.
i
Notes on control unit diagnosis can be found in the
online help for the HUB software (
).
4.6.2 Firmware update
After an update of HUB, the firmware of the ET650 is
updated automatically when the control unit diagnosis
is started.
To update the firmware, supply the ET650 using
the provided power supply unit and connect to
ET750 using the USB connecting cable. Do not
interrupt the USB connection during the firmware
update. The firmware update can also be done using
DDC (Diagnostic Device Configuration) (see online
help on DDC).
!
For the ET650, firmware updates must always be
performed using the USB connecting cable (not by
way of Bluetooth).
5. Initial commissioning
¶
Remove the ET750, the ET650, the storage battery
and the power supply unit with power supply cable
from the case.
5.1 Fitting the storage battery
1. Loosen the screws in the battery cover (fig. 3, item 1)
on the back of the ET750 and remove the battery
cover.
2. Orient the storage battery properly, place it in the
battery compartment (fig. 7, item 2) and slide it
onto the battery connector (fig. 7, item 3).
3. Fasten the storage battery using the two screws on
the battery.
4. Reinstall the battery cover and fasten it with the
screws.
459966-06_Re
1
3
1
2
Fig. 7: Inserting the storage battery
1 Battery fastening sleeves
2 Battery compartment
3 Battery connector
i
It is advisable to charge the storage battery for at
least three hours before running the ET750 off the
battery.
5.2 Connection
Prior to the initial commissioning, make sure the
mains voltage coincides with the voltage specified on
the power supply unit (use the power supply cable
provided).