HEIDENHAIN TNC 306 Service Manual - Manual (Page 34)

SERVICE MANUAL TNC 306/360
Page 30
HEIDENHAIN Service
8.3 Power Supply of the NC Part
The power supply line for the NC is connected to the terminals of X31.
The different voltages for the LE are transformed from the voltage fed (+24V) in the
"POWER SUPPLY" assembly (see block diagram, sec. 8.3.1).
The input and output voltages are displayed by LEDs.
The states of the individual voltages are only displayed approximately by the LEDs. For
exact values please see section 8.4, Power Supply Check.
Two power supply versions are used:
a) Connection to the processor board via connector.
b) Direct connection to the processor board via soldered terminals.