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LN40D550K1FXZA Fast Track Troubleshooting Manual Rev - 1/11/12
SERVICE BULLETINS
2 011 LCD Option Byte Table
POWER ASC20110624001.pdf
PCB
MAIN Insert Photo of TV Board Layout FIRMWARE
Include Board Assy names (as appearing in parts) and
PCB any No current changes as of
special labels/items (i.e. Plasma voltage label)
DRIVER
1/11/12
LVDS BOARD
CABLE
Be sure to check for SW updates.
PARTS (Board Assemblies)
T-CON PCB Be sure to check for latest parts
SPEAKER SPEAKER
(under shield) updates.
HELP : 1-888-751-4086; 1-866-894-0637 (FE)
http://gspn3.samsungcsportal.com
PLUS ONE
http://my.plus1solutions.net/clientPortals/samsung
HOT TIPS
Power On Problems: (see page 2)
Video Problems: (see pages 3,4)
TIP If the unit has a vertical yellow
colored line that is one pixel wide in
the video, verify that it also affects the
OSD. If so, replace the panel. If it does
not affect the OSD and is in multiple
1
sources, replace the main board.
LN40D550K1FXZA Fast Track Troubleshooting Manual
SW-P
Wiring Diagram
Include Connector Numbers , References, and
Locations.
Power On Sequence (approximate Voltages)
)
1. Standby Voltages: CN201-4 (5V) To Force Backlight On
2. Power On CN201- 2(0