Samsung PN43D440A5DXZA Schematic

Page 1

PN43D440A5DXZA Fast Track Troubleshooting Manual

Y Buffer
Y Main
HELP: 1-888-751-4086 (Tech Support)
http://service.samsungportal.com/EP/web/ portal/jsp/EP_Default1.jsp
PLUS ONE
http://my.plus1solutions.net/clientPortals/s amsung
HOT TIPS
-Power On Problems: (p g. 3)
-Video Problems: (pg. 4)
SMPS
X Main
Logic Main
Buffer F Buffer E Spkr
Spkr
Latest Firmware:
Frmware for 2011 PDP Saturn 4 TV Video & Audio > TV > Plasma Model Code: PN43D440A5DXZA Added by CMS Registered date 05.18.2011 Display Y Attached Files
2011_PDP_TV__Firmware_Upgrade_Instru ction.pdf(134.7KB) T-STD4AUSHC.exe(4.3MB)
Func.
Service Bulletins:
ASC20110506002
Preventing the failure or repeated failure of the X Main board .
Quick Parts List:
Version Parts No Short Description
ALL BN44-00442A SMPS N102 BN96-16507A Logic Main PCB B104 BN96-16507B Logic Main PCB
ALL BN96-16508A Buffer E
ALL BN96-16509A Buffer F N102 BN96-16510A X Main B104 BN96-16510B X Main
ALL BN96-16511A Y Main
ALL BN96-16512A Y Main Scan
ALL BN96-16730C Function & IR PCB
ALL BN96-19470A Main PCB N102 BN96-17356A Panel B104 BN96-17356B Panel
ALL BN96-16782A Rear Cover
ALL BN96-16786A Stand Guide N102 BN96-16789A Stand Base
ALL BN96-16789C Stand Base N102 BN96-17869P Front Cover N102 BN40-00140B Tuner
ALL BN96-13325G LVDS Cable N102 BN96-18071A Speaker
ALL 3903-000467 Power Cord
ALL AA59-00506A Remote
Page 2
PN43D440A5DXZA
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
Page 3
PN43D440A5DXZA
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 cor r ect voltage briefly before shut- ting down.(You have enough time t o chec k 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.
SMPS Over Current Protection
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
“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 shorted connector r emov ed for correct Vs voltage verification. (It may only come up briefly but to full level). Be careful not to reconnect power connectors until Vs falls below 10V.
If Va is low or missing, disconnect power connectors to Address Boards and Check to see if SMPS Supply is restored. (Note Va feed normally passes through the Y-Driv e t o t he Addr ess Boards (Logic Buffer Boards).
If Vsc is low or missing and Vs is OK, the failure is with the Y-Board
.
since the Y-Board generates the Vsc voltage from the supplied Vs. 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 rare cases the Ve is generated by the Y-Board fed to the X-Board.)
Other SMPS Voltages:
Check Low Voltage feeds to the Main Board and other supplied Assemblies.
3
Page 4
PN43D440A5DXZA
Fast Track Troubleshooting Manual
TROUBLESHOOTING VIDEO PROBL E M S
1. Verify Video Operation
a) Customer Picture Test (if available) b) “Display” c) Substitute with known good Source (external DVD or Signal Generator
(If display is OK source is suspected)
3. Determine cause
a) If Logic pattern is NG; Logic
board, Logic buffers or Panel are suspect.
b) If FBE patterns is NG and
Logic is OK; Main or LVDS cable are suspect. If both are OK it is likely a
c)
source issue.
2. Using Test Patterns in Service Mode
- ENTERING SER VICE MODE –
Customer Remote: Service Remote:
)
1. Power off 1. Power On
2. Mute, 182, Power 2. Info, Test
4
Page 5
2011 PDP Signal Path for
Genoa-P
Main Board
A R
Inputs
A/V HDMI PC USB Etc.
Boot Logo
S E N A L
Genoa
-P
OSD
Customer Picture Test
Troubleshooting
LVDS CABLE
Logic Board
X
M
A
I
N
X
B U
F F
Logic Buffer
Boards
Y
M
Y
B
Logic
(
A
I
N
U
F F
PNXXD8000 Sample)
Page 6
PN43D440A5DXZA
Fast Track T roubleshooting Manual
ALIGNMENTS & OPTION BYTES :
1. Check/Adj. VS, VA, VE, & VSC according to Panel Label and Diffusion test. (see bulletins for any special notes before making changes)
2. Check/Set Option Bytes:
- ENTER SERVICE MODE -
a) Customer Remote: Power off; M ute, 182, Power On b) Service Remote: Power On; Info, Test
Model
Code
PN43D440A5
DXZA
Side Label
N101 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF N102 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF A103 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF B104 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF
I105 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF I406 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF I407 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF I108 43DHHcD PD440 ALPS TAS5715 P-S-C-BK OFF
Type Model Tuner
Option
Audio
AMP
Front Color
DIFFUSION TEST/ADJ. (cell miss-firing, older units)
- Allow the unit to warm up 15 to 20 minutes
- Access the Burn Protect Sig . Pattern i n Cust . Menu.
-Adj ust the Vs volts until screen errors are gone in both dark and bright areas.
- Adjust the Vs volts within +/- 10V on the panel label.
Exhibition
Mode
SPECIAL NOTES:
See bulletin “Red Dots” for correction/ adjustments for this model.
6
Loading...