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Samsung UN40F6400 No Picture Bad T-Con or Panel!!!

Posted: Tue May 04, 2021 1:15 pm
by mugunthans
Dear all,
I have Samsung UN40F6400, which was reboots continuously and opened the TV and checked for loose connection - disconnect and reconnect all cables.
When I power ON and noticed that its entered into Burn mode (RED/GREEN/BLUE) screen and I turned off and checked the cables again but this time it turned into white screen only. No matter how many times I restart the TV the result is same. Below are the Voltage measurement in T-Con Model: BN41-01939B.
Needed your expert advise, whether it is the TCON faulty or Total Panel Failure??

TCON LED status: All 3 Blue are ON.
Panel: 12.7v
AVDD:17v
HAVDD:8.5v
Fuse:12.7v
B1.8:1.7v
B3.3:3.3v
VonE:29.2v
HVin:13v
VoffE: -9.5v
Vss: -7.5v

Re: Samsung UN40F6400 No Picture Bad T-Con or Panel!!!

Posted: Tue May 04, 2021 8:57 pm
by notengo13
Take a look to service manual for similar TV maybe it will help
Samsung+UE32F6400-U85a.pdf