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PN51D6900DFXZA Fast Track Troubleshooting Manual, Rev. 1/10/12

Y Buffer X Buffer No Service Bulletins
X Main
SMPS
Y Main
Please check GSPN for parts update!

Quick Parts List:
Version Parts No Short Description
Main N202 BN44-00446A Power PCB
N202 BN94-04402L Main PCB
Logic N202 BN96-16521A Buffer E
N202 BN96-16522A Buffer F
N202 BN96-16527A Logic Main PCB
N202 BN96-16528A X Main
Spkr
Spkr Wi-Fi N202 BN96-16529A Y Main
Blue Tooth
Buffer E Buffer F N202 BN96-16530A Buffer X
N202 BN96-17107A RF module PCB
HELP: 1-888-751-4086 (Tech Support) Latest Firmware: N202 BN96-19070B Function & IR PCB
1-866-894-0637 (FE) Please check Samsung.com for latest N202 BN96-19432A Y Main Scan
GSPN update! N202 BN96-17359A Panel
http://gspn3.samsungcsportal.com 2011 PDP Firmware for D6000, D7000 N202 BN96-16788A Stand Guide
PLUS ONE Series (T-MST5AUSC, 1009.2 N202 BN96-16807A Front Cover
http://my.plus1solutions.net/clientPortals/samsung N202 BN96-16825A Rear Cover
Firmware for D6000, D7000 Series
- Version : 1009.2 N202 BN96-18195A Stand Guide Neck
HOT TIPS
- Folder Name: T-MST5AUSC N202 BN96-18954C Stand Base
-Power On Problems: (pg. 3) - Related Models: LED: D6000, D7000 Series
-Video Problems: (pg. 4) N202 BN40-00208A Tuner
- Description:
N202 BN96-18070A Speaker
Support 3D Explore and Compassion Apps
N202 BN96-18130H LVDS Cable
N202 4301-000103 Battery
N202 BN96-09872R Power Cord
PN51D6900DFXZA Fast Track Troubleshooting Manual




Power On Sequence:
1. STBY 5V (CN801, #2, 5v)
2. PS_ON (CN801, #1, 3.3v-0v)
3. VS_ ON (CN802, #6, 0-3.3v)
4. Panel should illuminate briefly
PN51D6900DFXZA Fast Track Troubleshooting Manual




Sample

"VITAL SIGNS"
When troubleshooting, It's very important to first check Vs, Va, Vsc & Ve
If Vs is missing (0V), disconnect power and check for short. Use ohm
Power Supply Trouble Shooting Notes: meter to measure resistance while disconnecting Y-Board & X-Board
supply feeds one at a time.
2010/2011 models
Turn Power On and Test SMPS with shorted connector removed for
Will not be run with the "X" or "Y" main disconnected. The SMPS will correct Vs voltage verification. (It may only come up briefly but to full
shut down immediately. However if a meter is first connected to the level). Be careful not to reconnect power connectors until Vs falls below
test point when power is applied it will read the correct voltage briefly 10V.
before shut- ting down.(You have enough time to check key
If Va is low or missing, disconnect power connectors to Address Boards
voltages)
and Check to see if SMPS Supply is restored. (Note Va feed normally
CAUTION: Do not reconnect any connectors to SMPS or Y/X Boards passes through the Y-Drive to the Address Boards (Logic Buffer Boards).
until power has been turned off long enough for Vs to drop below 10V If Vsc is low or missing and Vs is OK, the failure is with the Y-Board
or damage will occur to X or Y Boards. .
since the Y-Board generates the Vsc voltage from the supplied Vs.

SMPS Over Current Protection If Ve is low or missing and Vs is OK, the failure is with the X-Board since the
Ve is generated by the X-Board from the supplied Vs. (Please note: In some
If a short circuit occurs on either the VS or VA voltage lines, the SMPS rare cases the Ve is generated by the Y-Board fed to the X-Board.)
stops operating, but should not fail. When the short circuit is removed
from the source line, the Power Supply will operate normally again. Other SMPS Voltages:
Many SMPS Supplies are replaced needlessly! Check Low Voltage feeds to the Main Board and other supplied Assemblies.
3
PN51D6900DFXZA Fast Track Troubleshooting Manual
TROUBLESHOOTING VIDEO PROBLEMS
1. Verify Video Operation 2. Using Test Patterns in Service Mode
a) Customer Picture Test (if available) - ENTERING SERVICE MODE