Thursday, November 12, 2015

SAMSUNG LE32R32 SERVICE MODE AND TROUBLESHOOTING

SAMSUNG LE32R32 

SERVICE MODE AND TROUBLESHOOTING 

Troubleshooting
1. Check the various cable connections first.
Check to see if there is a burnt or damaged cable.
Check to see if there is a disconnected cable connection or a connection is too loose.
Check to see if the cables are connected according to the connection diagram.
2. Check the power input to the Main Board.
3. Check the voltage in and out between the SMPS <> Main Board, between the SMPS<> INVERTER Board, and between the Main LVDS Boards
Checkpoints by Error Mode
No Power
LAMP off, power indicator LED red color? > Check a connection a power cable.
Does proper DC 12V, DC 5V appear at CN101? > Change a Assy PCB Power.
Does proper DC A3.3V, A5V appear at C126, C127? > Check a IC104, Q104. Change a main PCB ass'y.
Does proper DC 12V, 9V, 3.3V, 2.5V, 1.8V appear at C109, C105, C132, C145, C159 ? > Check a IC102_CPT, IC101, IC105, IC106, IC109. Change a main PCB ass'y
No Video (Analog PC)
Check a PC source and check the connection of DSUB cable? > Input a analog PC signal and connected cable(DPMS).
Does the signal appear at C313, C316, C320 near IC602? > PC cable. Change a PC cable. Change a main PCB ass'y.
Does the digital data appear at the output of LVDS (R716, 717, 719~726)? >  Check a IC602 Change a main PCB ass'y.
Check a LVDS cable? Replace a lcd panel?
No Video (Digital-HDMI)
Check the connection of HDMI cable? > Input a HDMI cable.
Does the digital data appear at R738~R745? > Check a a IC602 Change a main PCB ass'y.
Does the digital data appear at output of IC602 LVDS(R716, 717, 719~726)? > Check a IC602 Change a main PCB ass'y.
Check a LVDS cable? Replace lcd panel?
No Picture (Tuner_CVBS)
Dose the signal appear at R126? > Check a B+ voltage (#6 of Tuner) 5V, change a main PCB ass'y
Does the signal appear at C611 near IC602? > Change a main PCB ass'y.
Does the digital data appear at output of R716, 717, 719~726? > Check a IC602. Change a main PCB ass'y.
Check a LVDS cable? Replacea lcd panel?
No Picture (Video_CVBS)
Does the signal appear at C614 near IC602? >  Check a connection harness.
Does the signal appear at Out of IC602 R716, 717, 719~726? > Check a IC602. Change a main PCB ass'y
Check a LVDS cable? Replace lcd panel?
No Sound
Does the signal appear at Pin #8, #14(CH1_L, R Sound) and Pin #29, #35 (CH2_L, R Sound) of IC806? >Check a connection harness and headphone jack / Side AV.
Check the DC 12V of IC806? > Check a IC806 Change a main PCB ass'y.
Does the signal appear at L802~L805? > Change a main PCB ass'y.
Entering Factory Mode
To enter to service mode press the remote keys in the following sequence
Power OFF > INFO > MENU > MUTE > Power ON
If you have Factory remote – control
PICTURE ON > DISPLAY > FACTORY
Panel Check
Specially for LE32R32**, You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating!
If Panel Mark is "A", Set the factory mode indicating as follows.
Panel BOM(Bill of material) : BN07-00289A
Connector between Panel and Power Unit
: BN39-00603M (300mm)
Option Byte
1. Gamma "AUO"
2. Panel Option "AUO"
If Panel Mark is "S" or not printed.
Panel BOM(Bill of material) : CPT :BN07-00315A
CMO:BN07-00207A
Connector between Panel and Power Unit
: BN39-00603M (300mm)
Option Byte
1. Gamma : CPT: Off, CMO: 0.94
2. Panel Option : CPT: CPT, CMO: CMO
If Panel Mark is "C" , Set the Factory mode indicating as follows.
Panel BOM(Bill of Material) : CPT : BN07-00315A
CMO : BN07-00207A
Connecotor between Panel and Powe Unit :
BN39-00659A(200mm)
Option Byte
1. Gamma " CMO "
2. Panel Option " CMO "
White Balance - Adjustment
If picture color is wrong, check White Balance condition.
Equipment : CA210, Patten : Toshiba
Adjust W/B in Factory Mode
Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz
HDMI[DVI] : 1280*720/60Hz
[ Test Pattern : MSPG-945 Series Pattern #16 ]
Color temperature
1500K +/-500, -6 ~-20 MPCD
Color coordinate
H/L : 267/263 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 270/260 +/- 3 1.5 Ft +/- 0.2Ft
Conditions for Measurement
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
INPUT SIGNAL GENERATOR : MSPG-925LTH
 Mode NO 2 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz
Pattern NO 36 : 16 Color Pattern
NO 16 : Toshiba ABL Pattern
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46
Method of Adjustment
1. Adjust the white balance of AV, Component and DVI Modes.
(AV Component)
a) Set the input to the mode in which the adjustment will be made
(RF > DTV > PC > DVI).
Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16
DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16
HDMI Mode: Model #6(1280*720 Mode), Pattern #16
b) Enter factory color control, confirm the data.
c) Adjust the low light.
Adjust sub - Brightness to set the 'Y' value.
Adjust red offset ('x') and blue offset ('y') to the color coordinates.
Do not adjust green offset data.
d) Adjust the high light.
Adjust red gain ('x') and blue gain ('y') to the color coordinates.
Do not adjust the green gain and sub-contrast (Y) data.
Alignments and Adjustments
Adjust the high light.
Adjust red gain ('x') and blue gain ('y') to the color coordinates.
Do not adjust the green gain and sub-contrast (Y) data.
Software Upgrade
How to Update Flash ROM
1. Installthe Flash Downloader
ConnectSet(Service Jack)and Jig Cable to execute Program Update.
2. Flash Downloader program update (SVP-PX)
Before Turning on the set,Click "connect"which is under of OSD Screen!
Turn on the Set.
3. Flash Downloader program update (MTK)
After Turning on the set, Click '1'(reset button)button two or more.
Click 'Browse' button, and find micom file for update.
Click 'Upgrade' button.
Turn on the set.