Technogym BIOSTRENGTH LINE, Руководство по техническому обслуживанию

Страница: 143 / 646

BIOSTRENGTH LINE: Service & Maintenance manual - rev. 2.1
Page 6.19
6.7. THE LCD DISPLAYS THE MESSAGE “HW FAULT: CHECK
FPGA”
This error message appears when the CPU board receives no signal from the Bio servo board, or
receives an incorrect signal.
HW FAULT: CHECK
FPGA
Replace the CPU board
Replace the Bio servo
board
Check whether the Bio servo
board sends signals to the
serial cable connected to the
CPU board
YES
NO
1
2
Check whether the CPU board
receives signals on the serial
cable connected to the Bio
servo board
Replace the BS-6/2
cable
Check whether the error signal
still appears on the LCD if the
CPU board is replaced
Replace the Bio servo
board
YES
NO
NO
YES
Follow the step-by-step guide to properly diagnose the error. Pay special attention to those tests
indicated in numbered boxes, and described in detail here below:
(1) Insert the oscilloscope probes between pins 12 and 1 of the CN7 connector on the Bio servo
board. With the time scale in 100
µ
sec, you should see the signal change from high to low.
(2) Insert the oscilloscope probes between pins 3 of the K3 connector and pin 1 of the K4
connector on the CPU board. With the time scale in 100
µ
sec, you should see the signal
change from high to low.
On Chest Press and Leg Press, the BS-6/2 cable is divided into 2 parts through the
connector CN36. Carry out the test on this connector and, if necessary, replace only the
defective section of the BS-6/2 cable.