Samsung PN59D550C1FXZA Schematic
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
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PLUS ONE
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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
1
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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