PN64E8000GFXZA
Fast Track Troubleshooting Manual – Rev 5/23/12
Vs Va Vsc Ve
Label Voltages
Buffer Y
Y Main
Logic Main
PCB
Spkr R
Logic Buffer Boards
SMPS
Bluetooth
Module
HELP : 888-751-4086; 866-894-0637 FE)
GSPN
http://gspn3.samsungcsportal.com
PLUS ONE
http://my.plus1solutions.net/clientPortals/samsung
HOT TIPS
- Check for continuous Firmware upgrade for
this model series…
-Motion Control command problems are
related to Firmware upgrade and room
environments. Check room environment and
user operation understanding and conditions.
moIP
Module
Spkr L
Logic Buffer Boards
X Main
Buffer X
Main PCB
Wi-Fi
Module
FIRMWARE
2012 PDP Echo-P Firmware (1018.2)
Avail on GSPN or Samsung,Com
Always check for latest updates
SERVICE BULLETINS
4/2/12 ASC20120402001 : Voice Command
issue … Fix: Update to latest firmware
Quick Parts: Verify before Ordering
1
Fast Track Troubleshooting Manual PN64E8000GFXZA
Power On Sequence
1. STBY 5V (Pin 2 CN801)
2. PS_ON (approx 3.3V – 0V) (Pin 1 CN801)
3. Low Voltages On 5.3V & 15V (Voltage Signals listed in Charts)
4. VS_ ON (approx 0V – 3.3V) (Pin 6 CN802)
(Power Supply sends Vs to Y & X Boards, & Va to Logic Buffer Boards.)
5. TV on with Boot Logo appearing.
Fast Track Troubleshooting Manual
Power Supply Trouble Shooting Notes:
2010/2011/2012 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 check Vs, Va, Vsc & Ve
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.
3
MoIP Module Troubleshooting
4
Standby A3.3V
on Function
Connector, Pin
3.
All Pins should
read 3.3V
before
commands.
Press, at Key 1,
Pin 6. 3.3V to
Function Control Troubleshooting
0.0V DC
Left, Right, Up,
Down at
Key 2, Pin 7.
Check specific
voltages on
chart.
5
Fast Track Troubleshooting Manual
TROUBLESHOOTING VIDEO
PROBLEMS
1. Verify Video Operation:
A. Customer Picture Test
B. “Display”
C. If display & Customer Picture
Test are OK source is suspected
D. Substitute with known good
source and cabling.
2. Using Test Patterns in
Service Mode:
Customer Remote
A. Power off
B. Mute, 182, Power
Factory Remote:
A. Power On
B. Info, Test
3. Verify Echo-P Patterns
4. Verify Logic Patterns
If Logic Patterns are OK and Echo-
P are noisy, replace the
defective LVDS Cable or Main
Board.
If Echo-P and Logic Patterns are
both noisy check for specific
on screen noise error to
determine failure. (next slide)
6
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
problem
2. Check/Set Option Bytes:
with Diffusion consult bulletins and/or report
.
64ESCrD
7
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