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PN59D550C1FXZA
Fast Track Troubleshooting Manual - Rev 12/31/11
Vs Va Vsc Ve
Voltages
Buffer Y
SMPS
Logic
Y Main
Spkr R
HELP : 888-751-4086; 866-894-0637 FE)
GSPN
http://gspn3.samsungcsportal.com
PLUS ONE
http://my.plus1solutions.net/clientPortals/samsung
HOT TIPS
If the set has "grainy" video, verify the sources first.
If they are good, check the OSD. if that is fine,
narrow the inputs if possible. Digital noise will show
up as artifacts that customers will describe as
"Grainy" and can occur on the HDMI inputs. If this
only occurs on the HDMI inputs, and you know the
sources are good, replace the main board. Also
check external HDMI Cable is < 40 feet.
Main PCB
Buffer
V
Main PCB
Buffer
X Main
Buffer X
Spkr L
FIRMWARE
T-MST4AUSC.exe(24.9MB)
Avail on GSPN or Samsung,Com
Check for latest updates
SERVICE BULLETINS
2 011 PDP Option Byte Table
ASC20110630001
Quick Parts: Verify before Ordering
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Fast Track Troubleshooting Manual PN59D550C1FXZA
CN801 (SMPS) ↔ CN201 (Main Board)
Power On Sequence
1. STBY 5V (Pin 2 CN801)
2. PS_ON (approx 3.3V – 0V) (Pin 1 CN801)
3. Low Voltages On 5V & 15V (All “B” Signals
listed – to Main Board)
4. VS_ ON (approx 0V – 3.3V) (Pin 6 CN802)
(Sending Vs to Y & X Boards, & Va to Logic
Buffer Boards.
5. TV on with Boot Logo appearing.
CN802 (SMPS) ↔ CN2000 (Logic Board)
Pin No.
(SMPS)
1 D5.3V 1 5.3V
2 D5.3V 2 5.3V
3 GND 3 GND
4 VS-SIGNAL 4 GND
5 PS-ON 5 PS_ON
6 VS-ON 6 VS_ON
Signal
(SMPS)
Pin No.
(Logic Board)
Signal (Logic
Board)
Pin No.
(SMPS)
1 PS-ON 1
2 STBY 2 A5V_PW
3 GND 3 DGND
4 D15V 4
5 GND 5 DGND
6 GND 6 DGND
Pin No.
(SMPS)
7 D5.3V 7 B5V_PW
8 D5.3V 8 B5V_PW
9 GND 9 DGND
10 D15V 10 B15V_PW
11 D15V 11 B15V_PW
12 D5.3V 12 B5V_PW
Signal
(SMPS)
Signal
(SMPS)
Pin No.
(Main
Board)
Pin No.
(Main
Board)
Signal
(Main
Board)
SW_POW
B15VS_P
Signal
(Main
Board)
ER
W
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Fast Track Troubleshooting Manual
Power Supply Trouble Shooting Notes:
2010/2011 models
Will not be run with the “X” or “Y” main disconnected. The SMPS will shut
down immediately. However if a meter is first connected to the test point
when power is applied it will read the correct voltage briefly before shut-
ting down.(You have enough time to check key voltages)
CAUTION: Do not reconnect any connectors to SMPS or Y/X Boards until
power has been turned off long enough for Vs to drop below 10V or damage
will occur to X or Y Boards. .
Over Current Protection
For the SMPS Power Supply... If a short circuit occurs on either the VS or
VA voltage lines, the SMPS stops operating, but should not fail. When the
short circuit is removed from the source line, the Power Supply will
operate normally again. Many SMPS Supplies are replaced needlessly!
SAMPLE VIEW & READINGS
. “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 meter to
measure resistance while disconnecting Y-Board & X-Board supply feeds one
at a time.
Turn Power On and Test SMPS with short connector removed for correct Vs
voltage verification. (It may only come up briefly but to full level). Again be
careful not to reconnect Power Connectors until Vs falls below 10V.
If Va is low or missing, disconnect Supply Feed to Address Boards and
Check to see if SMPS Supply is restored. (Note Va feed normally passes
through the Y-Drive to the Address Boards (Logic Buffer Boards).
If Vsc is low or missing and Vs was OK, the failure is with the Y-Board
.
since the Y-Board generate the Vsc voltage from the Vs supplied by the
SMPS.
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 Vs supplied by the SMPS. Please note
in some rare cases the Ve may be generated by the Y-Board feed to the XBoard.) Other SMPS Voltages:
Check Low Voltage feeds to the Main Board and other supplied Assemblies.
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Fast Track Troubleshooting Manual
TROUBLESHOOTING VIDEO PROBLEMS
1. Verify Video Operation
a. Customer Picture Test (models available)
b. “Display” (If display is OK source is suspected)
C. Substitute with known good Source
(external DVD or Signal Generator)
2. Using Test Patterns in Service Mode
- ENTERING SERVICE MODE -
Customer Remote Service Remote
1. Power off 1. Power On
2. Mute, 182, Power 2. Info, Factory
2011 PDP 8000 Series Sample
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Fast Track Troubleshooting Manual
ON SCREEN FAILURE EXAMPLES:
ALIGNMENTS:
1. Check/Adj. VS, VA, VE, & VSC according to Panel Label
and Diffusion test. (see bulletins for any special notes
before making changes)
DIFFUSION TEST/ADJ. (cell miss-firing)
- Allow the unit to warm up 15 to 20 minutes
- Access the Burn Protect Sig. Pattern in Cust. Menu.
-Adjust the Vs volts until screen errors are gone in
both dark and bright areas.
-Adjust the Vs volts within +/- 10V on the panel label.
-NOTE: Diffusion may appear with aging panels. New panels with
Diffusion consult bulletins and/or report problem.
2. Check/Set Option Bytes:
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