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Klavis

 

 

Logica 

XT 

user manual V1.0 

Page 

2

 of 

11

 

 

Installation and security 

Purpose 

This module is meant for installation in a Eurorack-compliant chassis. 
It adheres to Doepfer Eurorack mechanical and electrical specifications. 

Do not attempt using this module in other mechanical or electrical contexts.  

Installation 

Before the installation, disconnect the mains power supply from your modular system. Some 
power supplies are not safely isolated; there is a risk of injury! 

See in the specifications if this module requires 5V from the supply rails. If 5V is needed and your 
rack is not providing 5V, do not attempt connection! 

Check that the current consumption requirements of this module, when added to your installed 
set of modules do not exceed the available current from your supply. This is done by adding up 
the current draw of all modules (mA) separately for each of 5V, 12V and -12V rails. If any of these 3 
sums exceeds the available current of your supply for that voltage, do not connect the module to 
your system; you need a stronger power supply. 

The provided supply flat cable can only be inserted in the appropriate orientation at the back of 
the module, so there is no risk of error on that end. However, you should pay attention to the 
orientation of the cable in the socket of the supply PCB inside your chassis. Cheap sockets 
without shrouding may allow you to plug in the connector the wrong way! 

The red stripe on the cable should match a stripe printed on the supply board. The stripe also 
indicates the -12V side. In case there is no stripe, a -12V marking is a safe indication of the 
orientation. 

Double check that the connectors are fully inserted and correctly oriented before switching on 
the power supply. In case of an anomaly, switch off the power supply immediately and check 
everything again. 

 

 

Summary of Contents for Logica XT

Page 1: ...D S H 1 High Off Gt Tr S R C Features at a glance 14 modes of operation o 6 basic logic functions o 2 forced states o 6 advanced logic functions The Gater adds up multiple gate signals while maintaini...

Page 2: ...ing up the current draw of all modules mA separately for each of 5V 12V and 12V rails If any of these 3 sums exceeds the available current of your supply for that voltage do not connect the module to...

Page 3: ...With simple logic functions these all work in the same way Any signal can be brought to any jack Normalization With simple logic unused jacks automatically get the necessary default value so that it i...

Page 4: ...active column Manual input button This button acts as a fourth input The default status of the button depends on the logic function selected Where it makes sense this default status can be changed by...

Page 5: ...ccepted and within that half only levels high enough will produce a logic one on the output So changing the amplitude or the voltage offset of the saw will change the width of the resulting pulse saw...

Page 6: ...ate sounds much different from cascading multiple 2 input Xor the div 2 out can even provide melodies out of subtly detuned static pitches Here is the detail of the Xor Xnor function Input jacks Out j...

Page 7: ...ines all inputs as an Or function does but also retriggers the output every time a new gate starts while one or more are already active All inputs work the same the button brings a 4th gate signal The...

Page 8: ...input 1 Signals may overlap only their rising edge is considered for proper validation The manual button inverts the current state of the output Coin This function offers 3 heads or tails random gener...

Page 9: ...l be delayed Turning the pot within its first half the LED column indicates the delay as follows LED off 1 input is copied to out on the next clock then up one LED at a time corresponding to 2 3 4 6 8...

Page 10: ...ne Below lowest Off Off On Input jacks are disabled Button inverts Summary Advanced logic White LED Function Out jack Details Top On On Input jacks are disabled Button inverts 1 2 Gater On if at least...

Page 11: ...and outputs can withstand signals between 12V and 12V without harm Jack Effective voltage range received or generated CV control input 5V to 5V All outputs 0 or 5V logic levels Input low to high chan...

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