These instructions and other details are meant for Professional Service Personals only. Not meant for a normal user. A normal user, who is not sound in electronics can’t make any repair to this TV, or she/he can’t understand anything I’ve detailed here.
FIRMWARE: 6/4/2012 Version 1012.32012 LED TV X9N Full HD Firmware (T-MX9FAUSC_1012.3)
“Makes better picture quality and solves sound noise with 'Auto Volume On'.” Avail on GSPN or Samsung.com
BN44-00499A:
SMPS (Power supply)
BN94-05764R:
Main Board
BN96-22213A: T-Con
BN07-01140A: LCD-Panel
BN96-22413L: Jog Sw. & IR
AA59-00600A: Remote Control
TROUBLESHOOTING
VIDEO PROBLEMS
Verify Video Operation (2012 Models)
a. Boot Logo models with X10 Micro-Processor & above during power on. Boot Sound only (X9 MPU) during power on.
b. Customer Picture Test in user menu
c. “Display” (If display and Boot Logo & Customer Picture Test are OK the source or cables are first suspected . Then check for a defective input on the Main Board.)
d. Substitute with known good Source. (external DVD or Signal Generator to check inputs on Main Board)
Using
Test Patterns in Factory Mode
ENTER
FACTORY MODE
1. Select an active source signal since Test Pattern may rely on signal source to appear or select TV Source mode.
1. Select an active source signal since Test Pattern may rely on signal source to appear or select TV Source mode.
Customer
Remote Service Remote
2. Power Standby 2. Power On
3. Mute, 182, Power On 3. Info, Test
4. Select SVC
5. Select Test Patterns
2. Power Standby 2. Power On
3. Mute, 182, Power On 3. Info, Test
4. Select SVC
5. Select Test Patterns
T-Con
Troubleshooting
Click on the pictures to magnify
ON SCREEN FAILURE EXAMPLES
ALIGNMENTS
Check/Set Option Bytes: in Factory Mode (Must be performed after replacing Main Board. )
1. Enter Service mode
Standard Remote
1. Power OFF the TV
2. Press MUTE, 1 8 2, then POWER
Factory remote
1. Power the TV ON
2. Press INFO then FACTORY
2. Check/Perform latest Firmware Upgrade for all repairs.
3. Perform reset in Service Mode if Main board is replaced.
2012
LED Hybrid Disassembly cautions for Front Cover removal
To prevent the removal process from damaging the connections on the sides of the panel.
1. Place TV face up on cushioned table.
2. Cut and split the cover off at the top.
3. Carefully remove the Front Cover and insulated paper in Front of T-Con area.
4. Attach the Front Cover bottom first to the panel
5. Secure the plastic latch on the left and right side of the Front Cover as shown
6. Visually inspect the spacing between the Cover and the panel for equal clearance
7. Combine to stick the Front Cover Rib into the middle mold.
Function
Control Troubleshooting
* 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 0.0V DC
* Left,
Right, Up, Down at Key 2, Pin 7.
Check specific voltages on chart.
Check specific voltages on chart.
UN**EH TV Start Up Sequence
Voltage chart (UN50EH5000FXZA)
