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PN50C490B3DXZA Fast Track Troubleshooting Manual - Rev 1/10/12
SERVICE BULLETINS

Buffer Y
Vs Va Vsc Ve
Voltages
X Main
SMPS
Please check GSPN for parts update!

Y Main Logic PCB
Buffer X


Main PCB

Buffer E Buffer F



FIRMWARE
Please check Samsung.com for
HELP : 1-888-751-4086 (Tech Support) latest update!
1-866-894-0637 (FE)
GSPN
http://gspn3.samsungcsportal.com
10/17/2010, Ver. 1002.0
PLUS ONE
http://my.plus1solutions.net/clientPortals/samsung No sound from SPDIF on PC-DTV PIP.

9/2/2010, Ver. 1001.0.2
HOT TIPS Volume going up and down
-Power On Problems: (pg. 3) intermittently.
-Video Problems: (pg. 4) 1
PN50C490B3DXZA Fast Track Troubleshooting Manual




Power On Sequence
-STBY 5V (Pin 2 CN801)
-PS_ON (approx 3.3V