Page 20
Trouble Shooting
NEC-FA150ATUA
14.3 Connection apparatus doesn’t work
Is it aware of the USB hub in the host PC ?
Proceed section 14.1 "HUB isn't recognize".
Is a host PC aware of the peripheral which doesn't work ?
Proceed section 14.2
" Connection apparatus isn't recognize ".
Is the program which is characteristic of the machine
unnecessary to make it work ?
Failure point
A machine movement program hasn't been installed.
Is there a precaution of " it doesn't sometimes move via the
hub. " in the manual of the peripheral which doesn't work ?
Failure point
The HUB urn-correspondence of connection
peripheral.
Is the pin of J204 (pin 2,3) with peripheral is connect with
rise_time and fall_time less than 20 nsec ?
In the pin of J204 (pin 2,3) which peripheral is connect
with rise_time and fall_time between 100nsec to 300
n s e c ?
Is the resistance value of R213,R214 22
O h m + / - 5 % ?
Failure point
R 2 1 3 , R 2 1 4 o p e n
Proceed section 14.4 "Check the USB IC"
NG
OK
OK
NG
NG
OK
OK
NG
OK
NG
OK
NG
OK
NG