XG-MB67X
8 – 1
XG-MB67X
Service Manual
CHAPTER 8. TROUBLE SHOOTING TABLE
[1] TROUBLE SHOOTING TABLE
Checking the basic operation
Does the power LED light up or
flash in red or green?
NO Has P1701 come off or is it
loose?
YES Fully insert the connector.
YES NO
Does the set function with its keys
or the remote controller?
NO Go to "Main PWB check".
YES
Lamp does not turn on or it turns
off in a short time.
YES Go to "Checking the lamp light-
up".
NO
Nothing is displayed or white ver-
tical line noise
YES Go to "DMD system check".
NO
Colors are not displayed normally.
Color deviation and color fluctua-
tion occur.
YES Check PHOTO SENSOR circuit.
NO
Are RGB and component input
displayed normally?
NO Go to "RGB and component sig-
nal check".
YES
Is VIDEO input displayed nor-
mally?
NO Go to "VIDEO input check".
YES
Is S-VIDEO input displayed nor-
mally?
NO Go to "S-VIDEO input check".
YES
Does the LAN function? NO Go to “checking the LAN”.
YES
END