6 - 12
10. Power Board - No Power ON
OK
NG
It is not power board problem.
OK
NG
Connect it right.
OK
NG
Check F801, D802, P801 and repair them
OK
NG
Check D813, L810, I808, C853, ZD802
and repair them.
OK
NG
Check peripheral component of I801 and
repair them.
OK
NG
Check Q802, R840 and repair them.
OK
NG
Check feedback circuit around I807 and
the other component and repair them.
OK
NG
Repair them.
Check peak voltage of R840 triangle
pulse is up to 0.85 volt or not.
Check output v5V is right or not
Check power cord (P801), signal cable, P802,
P803 are connected
right or not.
Check C801 is about DC140V-330V or not.
Check C853 is over 16V or not.
Check pin 8 of I808 have same pulse or not.
Check pin 1 of T806 have same pulse or not.
Check peak voltage of R840 triangle pulse is up to
1.5 volt or not.
Check T806, D817, C845, C857 have same short
circuit, or the 5V is over load
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 ...