Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung Monitor Samsung_PN43D450_X-main_repair_tips
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SERVICE BULLETIN
PRODUCT: PDP
BULLETIN NUMBER: ASC20110506002
BULLETIN DATE: May 6, 2011
MODELS: PN43D440A5D,
PN43D450A2D,
PN43D490A1D
SUBJECT: Preventing the failure or repeated failure of the X Main board
SYMPTOM: No "power on" or "no picture"
REPAIR: Check the production range of the PDP. If it was manufactured in January or February of
2011 and the X main board has failed, restore the PDP to full operation, and then verify that the
firmware on the main board is at/above the version listed in the chart. If not, upgrade the firmware.
Model Firmware version
PN43D440A1D
PN43D450B1D
PN43D490A1D
Note: When servicing a Samsung TV, always check that the latest
firmware is applied before completing the repair.
PROCEDURE: Troubleshoot to determine the cause of the failure. Restore the PDP to full
operation, and then, regardless of whether the symptom is caused by a defective X main or other
board (or NDF), upgrade the firmware to the version listed above (or to the latest, whichever is the
higher version) to prevent possible (repeat) failure of the X main board.
Note: Consult the Samsung Service Website at (service.samsungportal.com) for the Service Manual
and other information on this product.
This information is published for experienced repair technicians only and is not intended for use by the public. It does not contain
warnings to advise non-technical individuals of possible dangers in attempting to service a product. Only experienced professional
technicians should repair products powered by electricity. Any attempt to service or repair the product or products dealt with in this
information by anyone else could result in serious injury or death. Information provided in this bulletin is subject to change or update
without notice.
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