Sony KDE-50XBR950 / KDE-P50MRX1 / KE-50MR2 / KE-P50MRX1 Service Manual ▷ View online
43
1 line
2 lines
Block
Block
Horizontal Line : 1 line, 2 lines, a block
a)
Failure of Scan IC of the Scan relay PKG.
b)
Failure of opening and poor contact etc of the Scan voltage flexible cable (CN01-
CN04, CN06-CN09) by the side of Scan relay PKG output.
c)
Failure of poor contact of the connector between Scan PKG and Scan relay PKG.
d)
Short between Scan IC terminals by conductive substances, such as screw waste.
The cause of presumed
Phenomenon (1 line, 2 lines, Block un-lighting)
Horizontal Line
44
Plasma Display
(NP50C4MF01)
Repair Manual
Ver.1
45
Preparation of a tool etc.
Preparation of a module
Remove connectors, cables
Remove screws
Remove fault PKG
Attach normal PKG
Attach
screws
Connect cables, connectors
Attach a module to jig
Attach P/
S and signal cables
Aging
Remove a module from jig
Analysis
Repair
Inspection
Page 46
Page 47
Page 48-50
Page 51
Page 51
Page 52
Page 52
Page 53-56
Page 57
Page 60
Page 61
Do analysis based
on Confirmation Manual
NG
OK
Adjust voltages
Page 58-59
Page 57
Display inspection
To the following process
as normal module.
Repair Flow Chart
46
Tools, JIGs
a) Philips type Driver
----------When taking off PKGs.
b) Wristband for static electricity countermeasure
----------At the time of the electronic parts handling of PKG etc.
c) Signal generator (PC etc)
----------At the time of voltage adjustment and display inspection
d) Power supply
----------At the time of voltage adjustment and display inspection
e) The jigs for module installation
----------At the time of standing a module upright and checking picture.
f) Tester ----------At the time of a short check and voltage adjustments
g) Cushions
g) Cushions
----------At the time of PKG exchange etc.
Cautions
Please always wear a wristband for the destructive prevention by static electricity
when handle PKGs.
when handle PKGs.
Preparation of tools
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