STEP EXCITE: Service & maintenance manual - rev. 1.4
Page 6.10
A
Are the DC v oltages at the
output of the brake board
correct?
NO
3
Are the DC
voltages correct at the:
-input of the conn. board?
-input of the CPU board
(UB models)?
Replace cable STP-03
NO
YES
4
Are the DC voltages at the
output of the CPU board to
the LCD inv erter correct?
NO
5
Replace the CPU
and/or connector
board
YES
Are the DC voltages at the
input to the LCD inv erter
correct?
Replace cable:
-CV-302 (NCB models)
-CU98 (UB models)
NO
6
YES
B
YES
Replace the brake
board
Are the AC v oltages at the
output to the LCD inv erter
correct?
Replace LCD inverter
NO
7
Continued on the following page.