6 - 13
11. Check the USB Hub Circuit
11.1 HUB is
n
o
t
R
econgnize
OK
Failure point
USB cable disconnection
NG
OK
NG
Failure point
USB cable disconnection
OK
NG
Failure point
I306
NG
OK
NG
Failure point
R434, R433, C499,
D331.
OK
OK
Printed wire breaks
between X302 and
I308
NG
Proceed "12.4 Check the USB IC "
section
Is a cable with the host PC connected
Is a USB cable connected with the
monitor?
Is a 3.3V supplied to I319 Vcc Pin 3, 7, 11,
15, 19, 23, 27, 33, 39, 45, 55 ?
Doesn't I306 open
Is a Reset Signal Input to
I319 pin 46?
Doesn't clock input to
I319 pin 21.
Failure point
X302
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 ...