Technogym ISOCONTROL, Service Maintenance Manual

Page: 45 / 72

ISOCONTROL: Service & Maintenance Manual - rev. 1.2
Pagina 6.29
6.2. THE DISPLAY FAILS TO ILLUMINATE
The problem may be due to absence of the power supply or to a malfunction of the display board.
Does the wall outlet to which
the machine is connected
supply the correct v oltage?
Is the mains lead ok?
Are the DC v oltages at the
output of the power supply
correct?
Plug the machine into
a working electrical
outlet
Replace the power
supply
Replace the power
supply
THE DISPLAY
FAILS TO
ILLUMINATE
Are the DC v oltages at the input
to the display board correct?
NO
YES
NO
YES
NO
YES
NO
YES
2
1
Replace cable ISO-01
or ISO-02
Replace the display
board
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below: