Panasonic PT43LCX64 - MMD DIGITAL TUNER, Service Manual

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NO
YES
No picture or abnormal picture
(Only RGB1 input is NG.)
(All input are NG.)
(Only Video1 OR 2 input is NG.)
(Tuner, Component AND Video input
is NG.)
Does the OSD appear on the
screen?
Check that there is no picture or abnormal
picture on the screen from all input
terminals.
Replace the Projection Unit. Still
NG, replace the Main C.B.A.
Replace the Main C.B.A.
Replace the Rear Jack C.B.A.
Replace the Rear Jack C.B.A.
Replace the Main C.B.A.
Replace the Rear Jack C.B.A.
(Tuner input is NG, Menu (OSD) display
is OK.)
Replace the Digital Tuner Power
C.B.A. Still NG, the DTV Tuner Unit.
Still NG, replace the Main C.B.A.
Still NG, replace the Tuner C.B.A.
Replace the DTV Tuner Unit. Still
NG, replace the Main C.B.A.
Still NG, replace the Tuner C.B.A.
Replace the DTV Tuner Unit. Still
NG, replace the Main C.B.A.
Still NG, replace the Tuner C.B.A.
Still NG, replace the Rear Jack
C.B.A.
(Only Tuner input of Right screen
for split screen or PIP screen is NG.)
Replace the Tuner C.B.A. Still
NG, replace the Rear Jack C.B.A.
(Only Component 1,2, OR 3 input
is NG.)
(Only Video3 input is NG.)
Replace the Front Jack C.B.A. Still
NG, replace Rear Jack C.B.A.
ABNORMAL PICTURE:
No Color Picture (Black and White picture)
Abnormal Color Picture
No Synchronization Picture
Dark Picture
(Only RGB2 input is NG.)
Replace the Front Jack C.B.A.
Still NG, replace the Main C.B.A.
(Only HDMI input is NG.)
Replace the Main C.B.A.
(HDMI AND RGB input is NG.)
(PC/SD Card input is NG.)
(Tuner input and Menu (OSD) display
are NG.)
(Tuner input is OK, Menu (OSD) display
is NG.)
Note:
Menu (OSD) is produced by the DTV Tuner Unit.
Replace the Main C.B.A.
Replace the Main C.B.A.
Replace the Main C.B.A. Still NG,
replace the Rear Jack C.B.A.
(Component 1,2, AND 3 input
is NG.)
In the case that one or some input
is NG, it can be judged that the
Projection Unit is OK.