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Technical Product Manual
Fault analysis and repairs 1318
6 Additional equipment
Section 6: Additional equipment • Edition 12/2005
TU00-1318-0200302 © Siemens VDO Trading GmbH Section 6 6–27
6.7.1 Checking automatic power-off function
Procedure
Turn the two knobs to position " ".
On the board (1) or v board (1.1) or (1.2) bridge soldering points (3) and
(4).
Use an insulated wire (5) for this; maximum 20 cm long with a cross-section of
A = 0.75 mm².
When the two points are bridged, the distance/working time motor must
switch off after seven to ten seconds.
6.7.2 Retrofitting automatic power-off board
Procedure
On the v board remove any solder on soldering points (7) by suction.
Put board (1) on the v board with the strips (2) facing down and solder it on.
Solder the blue wire to the v board
1
. (See illustration)
Perform the check. (See Chapter 6.7.1)
Remark
Additional equipment "B30" guarantees that the WT system is switched off
automatically if the vehicle has been stationary for 36 hours. Thus, power
will be only supplied to the clock mechanism, regardless of the knob
settings.
With µP units (EC version) the automatic power-off function is standard and
is activated after 25 hours. The relevant electronic components are located
on the EC v board. These cannot be checked.
Note
The anti-static protective measures must be observed.
The board is a CMOS board.
Remark
v boards 1318.0210.104.001 and 1318.0210.104.001 cannot be retrofitted.
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