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