User's Guide
Wheel Electronic V1.0 and 2.0
Page 15
Check list
In case that your
WE
installation does not work at the first go please check the following points:
•
Does the power supply work correctly ?
•
After power on the LED has to turn
on
! Otherwise the AC adapter used is not suitable, has
the wrong polarity, voltage or current, or does not work. The correct polarity is: outside ring =
GND, inside lead = +7...12V.
•
Are the controls connected correctly as described in this manual ?
•
Is the right Midi channel selected with the jumpers 1… 4 of JP1 ?
•
Is the right preset number selected with the jumpers 5… 8 of JP1 ?
•
Is the right voltage range selected with the jumpers jumpers of 1...4 JP2 ?
•
Are unused analog inputs connected to GND or +5V (or jumpered correspondingly directly at
the pin headers ST1… ST4) ? When the LED is flickering permanently without operating one
of the controls probably one of the four analog inputs is left open !
•
If inputs jumpered for the reduced voltage range seem to work not as they should (e.g.
permanent data transmission or no data transmission) check if the voltage V+ adjusted with
P1 is more than +3V. With reference voltages below +3V the a/d converters do not work
properly.
•
Is the LED flickering if incoming Midi messages appear at the Midi In of
WE
(e.g. from a
keyboard)?
•
Was no short circuit made (neither in the wiring nor mounting) ?
•
If the diode D3 and the voltage regulator IC3 become hot probably a short circuit between
GND and +5V was made !
•
If momentary or toggle switches are used at the analog inputs ST1… ST4: are the 10k
(4k7...100k) resistors soldered accordingly?
•
Are the Midi connections between
WE
and the other Midi devices installed correctly ? Midi
Out of
WE
has to be connected to Midi In of the Midi device controlled by
WE
. Especially
when computers are used Midi In and Out are very often mixed up by the user. Once again:
Midi Out
→
Midi In (not Midi Out
→
Midi Out nor Midi In
→
Midi In).
•
Please use only cables that are suitable for Midi.
•
When a PC with sound card is used only high quality multimedia cables should be used. Low
cost multimedia cables without optocouplers for Midi In and without drivers for Midi Out very
often cause Midi data problems.
Extent of delivery
The
WE
delivery contains the following parts:
•
Wheel Electronic pc board, assembled and tested
•
Power Supply (230V mains voltage, European type mains plug, output voltage range
7...12V, current min. 100 mA) included only for shipments within Germany, for shipments
outside Germany please contact your local representative or dealer
•
This Wheel Electronic user's guide
•
Four 3-pin cable sets (about 30 cm) for ST1… ST4
•
One 2-pin cable sets (about 30 cm) for ST5
Elements that can be connected to
WE
(e.g. modulation or pitch wheels, rotary or slider/fader
potentiometers, foot controllers, foot switches, joy sticks and so on) are not included and have
to be purchased in addition. Suitable parts can be found on our website www.doepfer.com.
Please use the link
accessories and spare parts
of the product overview page. Prices can be
found in the price list.
