Technogym Top 600 XTPRO Service Maintenance Manual page 32

Replace the CPU 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:
(1) Place the tester probes between terminals L1 and N1 of the input socket / on-off switch block.
The measured voltage should be approximately 220 VAC or 110 VAC depending on the
mains electricity supply.
(2) As for step (1) but with the tester probes at the filter input.
(3) As for step (1) but with the tester probes at the filter output.
(4) Disconnect connector CN1 from the power supply. As for step (1) but with the tester probes
on pins 4 and 6 of the connector.
(5) Slightly lift connector CN2 on the power supply to access the pins with the tester probes.
Check that all the output voltages of the power supply are correct, referring to paragraph 2.5.
"Wiring diagram with non-coded receiver"
(6) As for step (5) but on connector CN3 of the alternator interface board.
(7) As for step (5) but on connector CN1 of the alternator interface board.
(8) As for step (5) but on connector CN1 of the display CPU board.
Page 6.4
TOP 600 XTPRO: Service & Maintenance Manual - rev. 2.0
B
Are all DC voltages present at
the output of the alternator
interface board?
YES
Do all DC voltages reach the
CPU board?
7
NO
YES
8
NO
Replace the alternator
interface board
Replace cable
connecting panel
connector to the CPU
board