6 - 16
11.4 Check the USB IC
NG
Proceed "9. Check the DC/DC
converter circuit" section.
OK
OK
NG
OK
NG
Failure point
I308 failure
Failure point
X302 failure
NG
Failure point
I318, I320
failure
OK
NG
Failure point
Faulty operation of the over
current protection function.
Failure point
I318, I320 failure
Is 3.3V supplied to I319 Vcc pin
3,7,11,15,19,23,27,33,39,45,55?
Does X302 oscillate
(24 MHz) ?
Does the output of
X302 satisfy a threshold
level ( High:more than
2.2V,Low:less than
0.8V) ?
Does it have the output of the High Level
(more than 4.75V) from I318, I320
Pin 5 and 8?
Does I318, I320 short ?
OK
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 ...