6 - 14
11.2 Connection
A
pparatus is
n
o
t
R
ecognize
OK
Proceed section 12.1 "HUB isn't recognize"
NG
NG
OK
Failure point
The un-connection of the down stream port
cable.
OK
NG
OK
NG
Failure point
FB316, FB317 failure.
Failure point
I307 power switch failure.
OK
NG
Failure point
L302, L303
failure.
OK
NG
Failure point
Faulty operation of the over-
current protection function .
Proceed "12.4 Check the USB IC"
section.
NG
Failure
point
I309
Is it aware of the USB hub in
the host PC?
Is apparatus connected to the
down stream port ?
Is 5V +/- 5% supplied to P305
pin1 ?
Does 5V output from I309 pin 5
and pin 8?
Does I309 during
protection mode?
OK
Does L302, L303 open ?
Does 5V output to VBUS1 and
VBUS2?
Summary of Contents for MultiSync 20WGX2 Series
Page 5: ...MultiSync 20WGX2 User s Manual ...
Page 45: ...4 8 Page 6 Each Color Temperature Data Adjustment needed Page 5 LCD panel type ...
Page 116: ...8 1 REPLACEMENT PARTS LIST TABLE OF CONTENTS Page Model 20WGX2 B For Europe 8 2 ...
Page 140: ...11 1 PACKING SPECIFICATION TABLE OF CONTENTS Page B Version 11 2 ...
Page 141: ...11 2 ...
Page 143: ...12 1 Revision History Revision Revision New Issue 1st Edition 2006 03 ...