Sony KDE-50XBR950 / KDE-P50MRX1 / KE-50MR2 / KE-P50MRX1 Service Manual ▷ View online
35
NEGA
POSI
POSI
NEGA
Check Point
Between NEGA and POSI
Judgment
OK : More than K ohms
NG : Short
(Cautions) Even if it removes the connector during High voltage PKG and Scan relay
PKG, when between NEGA-POSI by the side of Scan relay PKG is short, it is failure
of Scan IC on the Scan relay PKG.
PKG, when between NEGA-POSI by the side of Scan relay PKG is short, it is failure
of Scan IC on the Scan relay PKG.
Scan Relay PKG
Scan Relay PKG (R-T)
Scan Relay PKG (R-B)
High Voltage PKG
High Voltage PKG
Tester Check 7
36
Judgment : Compare with specification
1 piece
2 piece continuation
Pixel Defect
2 piece continuation
Pixel Defect 1
37
3 piece continuation
3 piece continuation
3 piece continuation
Pixel Defect 2
Pixel Defect
38
The cause of presumed
One of red lines is open.
a)
Failure of opening and poor contact etc of the flexible
cable for Data relay.
cable for Data relay.
b)
Failure of data IC etc.
c)
Panel failure.
All Red Pattern
All Green Pattern
All Blue Pattern
All Black Pattern
Black 1 Line
Red 1 Line
Red 1 Line
Normal picture
Phenomenon (Open Mode)
Vertical Line : 1 line
Vertical Line 1
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