Service Manual
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Mount the new control knob on the inner knob. Continue to press with the screwdriver and turn the control knob
clockwise until it stops when it is in position.
12I/O modules
12.1 General
The machine can be equipped with either one or two I/O modules:
• I/O module type 81 is always installed in the machine at delivery. It controls internal machine functions and outputs
to heating, motors etc.
• I/O module type 2 is installed as an option. It controls the external functions and inputs from payment and booking
systems etc.
The functionality of I/O module inputs and outputs is depending on the parameter software downloaded to the ma-
chine’s program device. The function options for the I/O modules are indicated by a letter in the program designation
for each module.
Machine fitted with two I/O modules
6A83 LG1 EL T5190 8_E 2_J
8_E = Function options I/O module type 81 (internal functions).
2_J = Function options I/O module type 2 (external functions).
Machine fitted with one I/O module
6A83 LG1 EL T5190 8_E 2_j
8_E = Function options I/O module type 81 (internal functions).
2_j = The letter that appears in lower case means that the machine is not fitted with I/O module type 2 but the down-
loaded parameter software is I/O module type 2 enabled.