Read Sony KDE-V42A12U / KE-V42A10E Service Manual online
1. OVERVIEW ...................................................................................................................................................... 4
1.1 M
ODEL
N
AME OF
P
LASMA
D
ISPLAY
............................................................................................................... 4
1.2 E
XTERNAL
V
IEW
............................................................................................................................................ 4
1.3 P
OINTS OF
S
CREW
M
OUNT
............................................................................................................................. 4
1.4 S
PECIFICATIONS
............................................................................................................................................. 5
2. PRECAUTIONS................................................................................................................................................ 6
2.1 H
ANDLING
P
RECAUTIONS FOR
P
LASMA
D
ISPLAY
........................................................................................... 6
2.2 S
AFETY
P
RECAUTIONS FOR
S
ERVICE
(H
ANDLING
,
PREVENTION OF A ELECTRICAL SHOCK
,
MEASURE AGAINST
POWER OUTAGE
,
ETC
) .......................................................................................................................................... 6
3. NAME & FUNCTION...................................................................................................................................... 9
3.1 L
AYOUT OF
A
SSEMBLIES
................................................................................................................................ 9
3.2 BLOCK DIAGRAM ....................................................................................................................................11
3.2.1 Block Diagram for Drive Circuit Operation .........................................................................................11
3.2.2 Block Diagram for Logic circuit .......................................................................................................... 12
3.3 M
AIN FUNCTION OF
E
ACH
A
SSEMBLY
.......................................................................................................... 13
3.3.1 X-Main board ....................................................................................................................................... 13
3.3.2 Y-Bain board......................................................................................................................................... 13
3.3.3 Logic Main board................................................................................................................................. 13
3.3.4 Logic Buffer (E, F) ............................................................................................................................... 13
3.3.5 Y-Buffer board (Upper, Lower)............................................................................................................. 13
3.3.6 TCP (Tape Carrier Package ) .............................................................................................................. 13
3.4 PRODUCT/ SERIAL LABEL LOCATION................................................................................................ 14
3.4.1 Serial No. ............................................................................................................................................. 14
4. OPERATION CHECKING AFTER RECTIFICATION ............................................................................ 15
4.1 F
LOW CHART
................................................................................................................................................ 15
4.1.1 No voltage output ................................................................................................................................. 15
4.1.2 NO display (operating Voltage but an image doesn’t exist on Screen)................................................. 16
4.1.3 Abnormal Display (Abnormal Image is on Screen except abnormality in Sustain or Address) ........... 17
4.1.4 Sustain Open (some horizontal lines don’t exist on screen) ................................................................. 17
4.1.5 Sustain Short (Some horizontal lines appear to be linked on Video )................................................... 18
4.1.6 Address Open (Some vertical lines don’t exist on screen ) ................................................................... 18
CONTENTS
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