Video Problems - Toshiba 32RV525RZ Service Material And Reference Tips

32RV525RZ, 37RV52R, 37RV52RZ,
37RV525RZ, 40RV52R, 40RV52RZ,
40RV525R, 40RV525RZ, 46RV525R,
46RV525RZ
No or distorted
video
Does
NO
the back light function
normally when the unit
is turned on?
Troubleshoot for
backlight problelms.
*** Warranty Authorization required if
display is replaced in warranty – Go
to www7.toshiba.com for instructions.
No or distorted Video
YES
the screen
YES
discolored or does it
have streaks and dark
areas on the
screen?
This signal viewed from
the twisted cable pairs at
the LVDS connector while
referencing cold ground.
If the LCD Control
Board (T-con) is
available, try it. If this
does not help, replace
the LCD display panel.
Is
NO
When
the input button
is pressed on the
YES
receiver or remote, is
the on screen
display clear and
normal?
Replace
the Main
Module.
Check for LVDS activity at
CN3. If it is present suspect a
problem with the display control
board (Tcon). If it is not present
replace the main PCB.
***
NO
Using the
power distribution
YES
diagram, are the
voltages normal at P802
of the power supply
module?
SMART2009-LCD209-V9 Page 5 of 10
Examples
NO
Suspect the
power supply
module.