Doepfer Pocket Electronic - Manual (Page 16)

Page 16 Pocket Electronic User's Guide
Check list
In case that your PE installation does not work at the first go please check the following points:
• Is the power supply working correctly ? Provided that a LED is connected to ST1 (pay
attention to the polarity) it should light up for a short time and then go out.
• Are the controls connected as described in this manual ?
• Was no short circuit made (neither in the wiring nor mounting) ?
• When the diode D1 and the voltage regulator IC6 become hot probably a short circuit
between GND and +5V was made !
• When momentary or toggle switches are used: Are the 10k (4k7...100k) resistors soldered
accordingly?
• Are unused inputs connected to GND ? When the LED is flickering permanently without
operating one of the controls probably one of the 16 analog inputs is left open !
• Is the LED flickering if incoming Midi messages appear at the Midi In of PE (e.g. from a
keyboard)?
• Are the Midi connections between PE and the other Midi devices installed correctly ? Midi
Out of PE has to be connected to Midi In of the Midi device controlled by PE. 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.
• Is the right preset number selected with the DIP switch ? A good preset number for testing is
no 0: if all 8 switches are "off" one obtains volume on the Midi channels 1...16 (provided that
the factory presets are unchanged, otherwise the Midi messages you have programmed to
preset no 1 will appear).
Extent of delivery
The PE delivery contains the following parts:
• Pocket 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 Pocket Electronic user's guide
• Two 10 pin ribbon cables with double row female connectors, about 30 cm each (for
connection of the 16 controlling potentiometers or switches)
• One momentary switch/button (snapshot function)
• one LED (control display)
• One 4 pin single row female connector with cables, about 30cm (for connection of the switch
and LED)
• 16 resistors 8k2...100k (5% carbon)