Text preview for : Troubleshooting.pdf part of Samsung Troubleshooting Samsung LCD TV PL42C91HPXXAP, PL50C91HXXAZ Chassis F33A(N_HD)_Lily sm Troubleshooting.pdf
Back to : Troubleshooting.pdf | Home
Troubleshooting
4. Troubleshooting
4-1 Troubleshooting
4-1-1 First Checklist for 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 or loose cable connection.
- 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 X, Y Main Board, and between the
Logic Boards.
Samsung Electronics 4-1
Troubleshooting
4-1-2 Checkpoints by Error Mode
No Power
- The LEDs on the front panel do not work when connecting the power cord.
Symptom - The SMPS relay does not work when connecting the power cord.
- The unit appears to be dead.
The SMPS relay or the LEDs on the front panel does not work when connecting the power cord if the cables
are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
- Check the internal cable connection.
Major Checklist
- Check the fuses.
- Check the output voltage of the SMPS.
- Replace the Main Board.
Troubleshooting
Procedures
Is the AC IN socket connector and No Insert the AC in connector and the
the SMPS CN800 connected? SMPS CN800 connector
Yes
Is the Fuse (F801S) of the SMPS Yes
Power Input Part blown?
Replace Fuse (F801S)
No
SMPS CN801 No
Pin 3 : STB 5V
Pin 2 PS-ON : Check to see if it is 0V
Replace the SMPS
Yes
Replace the Main Board
4-2 Samsung Electronics
Troubleshooting
When the unit is repeatedly turning on and off
Symptom - The SMPS relay is repeatedly turning on and off.
In general, the SMPS relay repeatedly turns on and off by the protection function due to a defect on a board
connected to the SMPS.
- Disconnect all cables from the SMPS, operate the SMPS alone and check if the SMPS works properly and if
Major Checklist each voltage output is correct.
- If the symptom continues even when SMPS is operated alone, replace the SMPS.
- If the symptom is not observed when operating the SMPS alone, find any defective assemblies by connecting
the cables one by one.
Troubleshooting
Procedures
Does the symptom continue when No Replace the Y Main Board
connecting the power after removing
CN810 from the SMPS?
Yes
Does the symptom continue when
connecting the power after removing
No
Replace the X Main Board
CN809 from the SMPS?
Yes
Does the symptom continue when No
connecting the power after removing
CN807 from the SMPS?
Replace the Logic Board
Yes
Replace the SMPS
WHEN SEPARATING AND CONNECTING THE CABLES SUCH AS CN810, CN809, CN808, CN807 OF THE
MAIN SMPS, CN4701 OF THE X MAIN BOARD, AND CN5707 OF THE Y MAIN BOARD, A SPARK MAY BE
Caution
GENERATED BY THE ELECTRIC CHARGE OF THE HIGH CAPACITY CAPACITOR. THEREFORE, WAIT
SOME TIME AFTER DISCONNECTING THE POWER CORD FROM THE UNIT.
Samsung Electronics 4-3
Troubleshooting
No Picture (When audio is normal)
Symptom - Audio is normal but no picture is displayed on the screen.
- This may happen when the Main Board is functioning but the X, Y Main Board, Logic Board, or Y Buffer
Boards are not.
Major Checklist
- The output voltage of the Main SMPS.
- This may happen when the LVDS cable connecting the Main Board and the Logic Board is disconnected.
CN810
CN809
CN808
CN807
Troubleshooting
Procedures
Are the Vs and Va voltages normal after No Replace the SMPS
removing all cables from the SMPS?
(CN810, CN809, CN808, CN807)
Yes
No
Did problem improve? Replace the Y Main Board
Yes
No
Did problem improve? Replace the X Main Board
Yes
No
Did problem improve? Replace the Logic Board
Yes
No
Did problem improve? Replace the Y Scan Board
WHEN SEPARATING AND CONNECTING THE CABLES SUCH AS CN810, CN809, CN808, CN807 OF THE
MAIN SMPS, CN4701 OF THE X MAIN BOARD, AND CN5707 OF THE Y MAIN BOARD, A SPARK MAY BE
Caution
GENERATED BY THE ELECTRIC CHARGE OF THE HIGH CAPACITY CAPACITOR. THEREFORE, WAIT
SOME TIME AFTER DISCONNECTING THE POWER CORD FROM THE UNIT.
4-4 Samsung Electronics
Troubleshooting
No Sound
Symptom - Video is normal but there is no sound.
- When the speaker connectors are disconnected or damaged.
Major Checklist - When the sound processing part of the Main Board is not functioning.
- Speaker defect.
Troubleshooting
Procedures
Is the cable connection between the No
Main Board and the speaker
properly connected?
Connect the cable properly or
replace the cable, if necessary.
Yes
Is the output voltage of SMPS normal?
(CN801 #13)
No
Replace the SMPS
Yes
Is the speaker output terminal No
of the Main Board normal? Replace the Main Board
Yes
Replace the Speaker
Samsung Electronics 4-5
Troubleshooting
No Video
Symptom - A normal/cable network analog broadcast screen is blank or abnormal but OSD is OK.
- Check the antenna connection settings (Air: NTSC / ATSC, Cable: NTSC)
Major Checklist - Check the CVBS cable connection.
- Check the power input of the Main board.
Troubleshooting
Procedures
Is the antenna connection setting No
properly configured? Configure properly
Yes
No
Check CN101 pin2 for +33V Replace the SMPS
Yes
Replace the Main Board
4-6 Samsung Electronics
Troubleshooting
SMPS Troubleshooting
Power ON
Abnormal
STD_5V Check the U101, D108
Normal
Abnormal
PFC Check the U201, Q203, Q204
Normal
Abnormal
VA Check the U501
Abnormal
Multi Check the U601
Normal
Abnormal
VS Check the Q401, Q402
Normal
Check the Other board (Image Board or Driver Board) or Cable.
Samsung Electronics 4-7
Troubleshooting
Drive Board Troubleshooting
1) Troubleshooting Summary
Condition Name Description Related Board
No Voltage Output Operating Voltage don't exist PSU
No Display Operating Voltage exist, but an Image doesn't exist on screen Y-MAIN, X-MAIN, Logic Main, Cable
Abnormal Display Abnormal Image (not open or short) is no screen Y-MAIN, X-MAIN, Logic Main
Sustain Open Some horizontal lines don't exist on screen Scan Buffer, FPC of X/Y
Sustain Short Some horizontal lines appear to be linked on screen Scan Buffer, FPC of X/Y
Address Open Some vertical lines don't exist on screen Logic Main, Logic Buffer, TCP
Address Short Some vertical lines appear to be linked on screen Logic Main, Logic Buffer, TCP
4-8 Samsung Electronics
Troubleshooting
2) Troubleshooting Procedure in Abnormal Conditions
No Display
No Display is related with Y-MAIN, X-MAIN, Logic Main and so on.
This page shows you how to check the boards, and the following pages show you how to find the defective board.
No Display
[ Logic Main ] [ Y-MAIN ] [ X-MAIN ]
LED Blinks Check necessary points Check necessary points
[ Logic Main ]
Check if power is supplied
( 5V, 3.3V )
YES NO
Check the LED Check the
operation power connectivity
YES NO
Check if internal is Check the Check the FUSE
Default Black MICOM operation
Check the
Check if any address Check the ASIC input voltage
data output is detected Control Signal output
If the input voltage is
Check if the data abnormal, replace the
and control signals PSU and check it
between DDR & ASIC again as this indicates
are normal a PSU output error
[ Y-MAIN ] [ X-MAIN ]
Check several points Check several points
F5001 for VDD OPEN F4001 for VCC OPEN
F5002 for Vs F4002 for Vs
FUSE Replace the Board FUSE Replace the Board
F5004 for VCC F4004 for VDD
F5005 for OUT_L F4005 for Ve
OK OK
Q4002~Q4003
Q5009~Q5021 SHORT SHORT
FET/ Q4011~Q4016 FET/
D5005, D5007 Replace the Board Replace the Board
DIODE D4004 DIODE
D5008
D4006~D4008
OK OK
Y-MAIN X-MAIN
Normal State Normal State
Samsung Electronics 4-9
Troubleshooting
Abnormal Display(Abnormal Image is on Screen.(except abnormality in Sustain or Address))
Abnormal Display is related with Y-MAIN, X-MAIN, Logic Main and so on.
This page shows you how to check the boards, and the following pages show you how to find the defective board.
Abnormal
Display
[ Logic Main ]
[ Y-MAIN ] [ X-MAIN ]
Observation of
Check necessary points Check necessary points
abnormal display
[ Logic Main ]
LED Blinks
( action of Vsync )
Regular NO
Logic Main
abnormal
Normal State
pattern
YES
Replace the Board Replace Panel
[ Y-MAIN ] [ X-MAIN ]
Check several points Check several points
F5001 for VDD OPEN F4001 for VCC OPEN
F5002 for Vs F4002 for Vs
FUSE Replace the Board FUSE Replace the Board
F5004 for VCC F4004 for VDD
F5005 for OUT_L F4005 for Ve
OK OK
SHORT SHORT
Q4002~Q4003
Q5009~Q5021 FET Replace the Board FET Replace the Board
Q4011~Q4016
OK OK
Y-MAIN X-MAIN
Normal State Normal State
4-10 Samsung Electronics
Troubleshooting
Sustain Open (some horizontal lines don't exist on screen)
[ Y-FPC ]
Sustain Open
NG
After Changing Y-buffer, Replace the Panel
recheck the status There is a defect on the FPC
OK
Done
(Defect is from Y-buffer)
Sustain Short (some horizontal lines appear to be linked on Video)
[ Y-FPC ]
Sustain Short
(Discharging in unwanted Scan line)
NG
After Changing Y-buffer, Replace the Panel
recheck the status There is a defect on the FPC
OK
Done
(Defect is from Y-buffer)
Samsung Electronics 4-11
Troubleshooting
Address Open, Short
Address Open and Short is related with Logic Main, Logic Buffer, FFC, TCP film and so on.
This page shows you how to check the boards, and the following pages show you how to find the defective board.
[ Logic Main ]
Address Open/Short
Check the LED operation
LED2011 : blink
LED2010 : on
NG NG
Check if the internal mode Check the check the voltage of
screen is normal Video Board C2901, C2902, C2903 is 1.25V
OK OK
OK
NG
Reload the data onto the
MICOM and recheck it
Check if a specific TCP Block check the voltage of
screen is displayed abnormally U2650 pin1 is 3.3V
Check if there is an open or
short circuit on the Buffer Board
and the Logic Main address
data output section.
Check the FFC connection status
OK
NG NG
Check the detailed waveform Replace Logic Main /
and control the signal waveform Address Buffer (E or F) /
FFC
NG
OK
DONE
Replace the Panel
4-12 Samsung Electronics
Troubleshooting
4-1-3 Faults and Corrective Actions
Symptom Related Image Causes and Countermeasures
A blank vertical cell (block) Address buffer defect
appears on the screen. - Replace the corresponding upper/lower
buffers (E, F)
COF defect (burnt)
- Replace the module
A green screen appears when The Scale is not reseting
the TV is turned on. - Replace the Main board
The OSD box appears but there Incorrect program version
is no text. - Check the version of each program
- Replace the Main board
A blank upper (or lower) block Upper/Lower Y Buffer defect
appears on the screen. - Replace the corresponding upper/lower
buffers (E, F)
Samsung Electronics 4-13
Troubleshooting
Symptom Related Image Causes and Countermeasures
Either the main or sub picture Replace the Main board
does not appear.
A vertical green line appears on The SMPS voltage is incorrect
the screen. - Adjust the SMPS voltage according to
the voltage printed on the module label
Dim screen (blurred in red) X-Main board defect
- Replace the X-Main board
A blank screen appears - Replace the Y-Main board
4-14 Samsung Electronics
Troubleshooting
4-1-4 Troubleshooting Procedures by assembly
No Assembly Major Symptoms
1 SMPS-PDP TV No power, Blank screen, the Relay repeats On and Off.
2 ASSY PDP MODULE P-X-MAIN Blank screen
3 ASSY PDP MODULE P-Y-MAIN Blank screen
4 ASSY PDP MODULE P-LOGIC MAIN Blank screen, Screen noise
5 ASSY PDP MODULE P-Y-MAIN SCAN BUFFER Row Bar screen is blank
6 ASSY PDP MODULE P-ADDRESS E BUFFER Corresponding Buffer Board block screen is blank.
7 ASSY PDP MODULE P-ADDRESS F BUFFER Corresponding Buffer Board block screen is blank.
8 ASSY PCB MISC-MAIN No Power, Abnormal screen for each input source, PIP screen trouble, Sound trouble
9 ASSY BOARD P-FUNCTION The side function key does not work properly
10 ASSY BOARD P-POWER&IR The remote control does not work properly, the LED does not work properly.
11 ASSY BOARD P-SIDE AV The AV2 and S-VIDEO2 modes do not work properly
Samsung Electronics 4-15
Troubleshooting
4-2 Adjustment
4-2-1 Service Instruction
Before Performing After Sales Services
1. Check if the measurement and test equipment is working properly.
2. Secure sufficient work space for disassembling the product.
3. Prepare a soft pad for disassembling the product.
Service adjustment item after replacement of Board
PDP Option of Factory Mode set the Factory Data Type item as the suitable value of relevant model.
Adjust Calibration of Factory Mode for each mode.
Adjust White Balance of Factory Mode.
Write down the value of HDMI White Balance of Factory Mode before replacing Board.
PDP Option of Factory Mode set the Factory Data Type item as the suitable value of relevant model.
Set the value of HDMI White Balance with the value written down before.
4-16 Samsung Electronics
Troubleshooting
4-2-2 How to Access Service Mode
1. General Remote
To Enter: POWER OFF MUTE 1 8 2 POWER ON
(Interval between key strokes: less than 3 sec)
To Exit: POWER OFF POWER ON
2. Factory Remote
To Enter: POWER ON INFO FACTORY Key
(Interval between key strokes: less than 3 sec)
To Exit: POWER OFF POWER ON
Press the Factory key twice with a key stroke interval of more than 1 second (Pressing once enters Aging Mode)
3. Settings when entering Factory mode
- Sharp Screen (Dynamic), Color Tone (Cool1), Factory (Dynamic CE Off)
4. Adjustment Procedures
- Channel Key : Select an item.
- Volume Key : Adjust the value up or down.
- MENU Key : Save the changes to the EEPROM and return to the higher-level mode.
- Using the Numeric (0~9) keys, you can select a channel.
- Using the SOURCE key, you can switch AV modes.
5. Initial SERVICE MODE DISPLAY State
1 Calibration 11 Bus Stop
2 Option Byte XXXXXX XXXXXX 12 Password 80 80 80 80
3 W/B 13 CheckSum
4 W/B Movie 14 Dynamic Contrast
5 MTK 8202 15 Spread Spectrum
6 FBE2 option 16 Reset
7 Pdp Logic
8 SOUND
9 YC Delay
10 Adjust
HDCP Write Success..
T-LIL42NSA-XXXX Month, Date, Year 00:00:00 T-BDPMNSAS-XXXX
Panel On Time(Hour) 0
TV Air 3 0
The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the
improvement of product functions.
If you have adjusted the settings in Service Mode, you have to reset the product.
Samsung Electronics 4-17
Troubleshooting
4-2-3 Factory Data The underlined are items applied during the service adjustment. None of the others should be adjusted.
1. Calibration
ITEM Data
AV Calibration Success
Comp Calibration Success
DTV Calibration Success
HDMI Calibration Success
2. Option Byte
ITEM Range Initial RF AV Componet PC HDMI/DVI
Logic D/L On/Off Off
Depending
Data Type 42"SA SPU
on Module and Fliter
Gamma On/Off Off
Auto Power On/Off On
Hotel Mode On/Off Off
Shop Mode On/Off Off
High Devi On/Off Off
Carrier Mute On/Off Off
Side Jack On/Off On
V-Chip On/Off Off
Caption On/Off On
Volume Table Small/Large Large
Same as Initial (RF & AV) Data
PDP 10W/
Sound Wattage PDP 10W
PDP 15W/LCD 10W
Auto/PAL-M/PAL-N/
Initial Color System Auto
NTSC-M
PS Test Min/Sec Min
English/French/
Language Spanish English
Portuguese
Active Low/
Hp Detect Active Low
Active High
PC Ident On/Off On
WM Calib On/Off Off
Uart Select Normal/Debug_DL Debug/DL
Sub MCU PW Down On/Off Off
4-18 Samsung Electronics
Troubleshooting
3. W/B
ITEM Range Initial RF AV Componet PC HDMI/DVI
Sub Bright 0~255 128
Adjustable
Red Offset 0~255 128
Green Offset 0~255 128 128
Blue Offset 0~255 128
Sub Contrast 0~255 128 Adjustable
Red Gain 0~255 128
Green Gain 0~255 128 128
Blue Gain 0~255 128 Adjustable
4. W/B Movie
ITEM Range Initial RF AV Componet PC HDMI/DVI
W/B Movie On/Off On/Off Off Off Off Off Off Off
Dynamic/Standard
Service P Mode Movie Movie Movie Movie Movie Movie
/Movie
Cool2/Cool1/
Service Color Tone Normal/Warm1/ Warm2 Warm2 Warm2 Warm2 Warm2 Warm2
Warm2
MSub Brightness 0~255 128 128 128 128 128 128
Msub Contrast 0~255 128 128 128 128 128 128
Warm1 Red Gain 0~255 140 140 140 140 140 140
Warm1 Blue Gain 0~255 105 105 105 105 105 105
Warm1 Red Offset 0~255 140 140 140 140 140 140
Warm1 Blue Offset 0~255 100 100 100 100 100 100
Warm2 Red Gain 0~255 145 145 145 145 145 145
Warm2 Blue Gain 0~255 90 90 90 90 90 90
Warm2 Red Offset 0~255 145 145 145 145 145 145
Warm2 Blue Offset 0~255 90 90 90 90 90 90
Normal Red Gain 0~255 130 130 130 130 130 130
Normal Blue Gain 0~255 120 120 120 120 120 120
Normal Red Offset 0~255 135 135 135 135 135 135
Normal Blue Offset 0~255 120 120 120 120 120 120
Cool2 Red Gain 0~255 123 123 123 123 123 123
Cool2 Blue Gain 0~255 145 145 145 145 145 145
Cool2 Red Offset 0~255 125 125 125 125 125 125
Cool2 Blue Offset 0~255 128 128 128 128 128 128
Mov.Contrast 0~100 80 80 80 80 80 80
Mov.Brightness 0~100 50 50 50 50 50 50
Mov.Color 0~100 55 55 55 55 55 55
Mov.Sharpness 0~100 45 45 45 45 45 45
Samsung Electronics 4-19
Troubleshooting
5-1. MT8202 (Cal. Adjustment)
ITEM Range Initial RF AV Componet PC HDMI/DVI
R_Offset 0~255 34
G_Offset 0~255 13
B_Offset 0~255 24
R_Gain 0~255 92
G_Gain 0~255 82
B_Gain 0~255 82
Y_Offset 0~255 21
Cb_Offset 0~255 35
Cr_Offset 0~255 22
Y_Gain 0~255 48
Cb_Gain 0~255 48
Cr_Gain 0~255 48
CVBS Offset 0~255 54
Same as Initial Data
CVBS Gain 0~255 49
CVBS U 0~255 0
CVBS V 0~255 0
R Offset After 0~255 129
G Offset After 0~255 129
B Offset After 0~255 129
Red Gain 0~255 159
Green Gain 0~255 159
Blue Gain 0~255 159
R Offset Before 0~255 113
G Offset Before 0~255 113
B Offset Before 0~255 113
LVDS Control 0~255 55
4-20 Samsung Electronics
Troubleshooting
5-2. MT8202 (Cal. Target)
ITEM Range Initial RF AV Componet PC HDMI/DVI
AV_Offset Target 0~255 15
AV_Offset Delta 0~255 1
AV_Gain Target 0~255 220
AV_Gain Delta 0~255 3
Comp_Y_Gain Target 0~255 235
Comp_Y_Gain Delta 0~255 3
Comp_Y_Offset Target 0~255 16
Comp_Pb_Offset Target 0~255 128
Comp_Pr_Offset Target 0~255 128
Same as Initial Data
Comp_Y_Offset Delta 0~255 2
Comp_Pb_Offset Delta 0~255 0
Comp_Pr_Offset Delta 0~255 0
PC_Offset Target 0~255 1
PC_Offset Delta 0~255 0
PC_Gain Target 0~255 254
PC_Gain Delta 0~255 0
Black Target 0~255 1
White Target 0~255 235
5-3. MT8202 (Picture Enhance2)
ITEM Range Initial RF AV Componet PC HDMI/DVI
PreLGain_Main 0~191 64 64 64 64 64 64
PreMGain_Main 0~191 64 64 64 64 64 64
PreHGain_Main 0~191 76 76 76 76 76 76
PreLGain_Sub 0~191 64 64 64 64 64 64
PreMGain_Sub 0~191 64 64 64 64 64 64
PreHGain_Sub 0~191 76 76 76 76 76 76
LocalLGain 0~191 72 72 72 72 72 72
LocalMGain 0~191 64 64 64 64 64 64
LocalHGain 0~191 64 64 64 64 64 64
PostLGain 0~191 96 96 96 96 96 96
PostMGain 0~191 96 96 96 96 96 96
PostHGain 0~191 64 64 64 64 64 64
Vgain 0~191 20 20 20 20 20 20
Sub Color 0~100 30 30 30 30 30 30
Samsung Electronics 4-21
Troubleshooting
6. FBE2 Option
ITEM Range Initial RF AV Componet PC HDMI/DVI
Patt-Sel 0~20 0 0 0 0 0 0
B-Slope gain 0~255 64 64 64 64 64 64
B-Tilt min 0~255 20 20 20 20 20 20
B-Tilt max 0~255 120 120 120 120 120 120
Lfunc-Basis 0~255 75 75 75 75 75 75
Hfunc-Basis 0~255 88 88 88 88 88 88
Mean-Offset1 0~255 64 64 64 64 64 64
Mean-Offset2 0~255 235 235 235 235 235 235
Mean-Slope 0~255 93 93 93 93 93 93
Input-offset 0~255 128 128 128 128 128 128
ACR-Offset 0~127 25 25 25 25 25 25
ACR-Th1 0~255 20 20 20 20 20 20
ACR-Th2 0~255 120 120 120 120 120 120
Skin-Enable On/Off On On On On On On
Skin-Tu 0~255 128 128 128 128 128 128
Skin-Tv 0~255 128 128 128 128 128 128
M-Skin-Tu 0~255 128 128 128 128 128 128
M-Skin-Tv 0~255 128 128 128 128 128 128
Sub Color 0~255 135 135 135 135 135 135
M-Au-Sub Color 0~255 128 128 128 128 128 128
M-Wi-Sub Color 0~255 128 128 128 128 128 128
MW-Skin-Tu 0~255 128 128 128 128 128 128
MW-Skin-Tv 0~255 128 128 128 128 128 128
7. Pdp Logic
ITEM Range Initial RF AV Componet PC HDMI/DVI
Pattern Select 0~31 0 0 0 0 0 0
CDC Sw On/Off Off Off Off Off Off Off
CDC Strength Th 0~31 10 10 10 10 10 10
BRE Sw On/Off Off Off Off Off Off Off
FRC Repeat Mode On/Off Off Off Off Off Off Off
FRC DBG MarkOn 0~15 0 0 0 0 0 0
FRC Bypass On/Off Off Off Off Off Off Off
CDC Lower Gain 0~31 4 4 4 4 4 4
CDC Upper Gain 0~31 6 6 6 6 6 6
Panel Type Read Only
Panel Inch Read Only
Panel Version Read Only
Logic Sw Version Read Only
Panel Temp Read Only
4-22 Samsung Electronics
Troubleshooting
8. SOUND
ITEM Range Initial RF AV Componet PC HDMI/DVI
AM Mute Th_High 0~20 7
AM Mute Th_Low 0~20 8
FM Mute Th_High 0~96 14
FM Mute Th_Low 0~96 7
NICAM Fine Vol 0~40 20
FM Fine Vol 0~40 20
AM Fine Vol 0~40 19
Fine Tune Vol 0~40 20
SC1 Fine Vol 0~40 20
SC2 Fine Vol 0~40 20
Bypass/L_Mono/
Output Matrix Bypass
R_Mono
MTS Num of Check 0~80 50 Same as Initial Data
MTS Pilot Num 0~50 35
MTS Pilot Low 64~137 112
MTS Pilot High 89~160 128
MTS SAP Num 0~50 20
MTS SAP Low 69~132 101
MTS SAP High 101~202 167
MTS SAP Mute Lvl 0~100 0
MTS Fine Vol 0~40 20
MTS SAP Fine Vol 0~40 20
FM Mute Th_H HDev 0~150 57
FM Mute Th_L Hdev 0~150 38
Speaker EQ On/Off On
Samsung Electronics 4-23
Troubleshooting
9. YC Delay
ITEM Range Initial RF AV Componet PC HDMI/DVI
RF PAL-B/G 0~10 6
RF PAL-D/K 0~10 5
RF PAL-I 0~10 5
RF PAL-L/L' 0~10 5
RF SECAM-B/G 0~10 7
RF SECAM-D/K 0~10 5
RF SECAM-I 0~10 5
RF SECAM-L/L' 0~10 5
RF NTSC3.58 0~10 5
RF NTSC4.43 0~10 6 Same as Initial Data
RF PAL-M 0~10 7
RF PAL-N 0~10 5
AV PAL 0~10 6
AV SECAM 0~10 7
AV NTSC3.58 0~10 6
AV NTSC4.43 0~10 6
AV PAL60 0~10 5
AV PAL-M 0~10 7
AV PAL-N 0~10 5
10-1. Adjust (User Control Unit)
ITEM Range Initial RF AV Componet PC HDMI/DVI
TTX PWM 0~255 30
Dyn. Contrast 0~255 100
Dyn. Brightness 0~255 45
Dyn. Color 0~255 55
Dyn. Sharpness 0~255 75
Std. Contrast 0~255 80
Std. Brightness 0~255 50
Std. Color 0~255 55
Std. Sharpness 0~255 50
Same as Initial Data
Melody Volume 0~100 20
Brightness Center 0~55 38
Contrast Gain 0~255 64
MTK_Dyn. Contrast On/Off Off
DSP Recovery On/Off On
Suwon/Sesk/SEH/
Channel Table SUWON
TTSEC
Video Mute Time 0~10 5
Sound Delay 0~70 0
4-24 Samsung Electronics
Troubleshooting
10-2. Adjust (LNA Plus)
ITEM Range Initial RF AV Componet PC HDMI/DVI
LNA PLUS On/Off On
RF_dB0_TH 0~255 5
RF_dB1_TH 0~255 15
RF_dB2_TH 0~255 43
RF_dB3_TH 0~255 64 Same as Initial Data
NR1_Coring 0~255 16
NR2_Coring 0~255 32
NR3_Coring 0~255 32
NR4_Coring 0~255 32
10-3. Adjust (Hotel Option)
ITEM Range Initial RF AV Componet PC HDMI/DVI
Power On Channel 0~100 3
Power On Band AIR/STD/HRC/IRC AIR
Power On Volume 0~100 10
Max Volume 0~100 100
Same as Initial Data
Local Key Lock On/Off Off
TV/AV1/AV2/
S-Video/Componet1/
Power On Source TV
Component2/PC/
HDMI1/HDMI2
10-4. Adjust (HDMI)
ITEM Range Initial RF AV Componet PC HDMI/DVI
Hot Plug On/Off On
Clock Control On/Off On Same as Initial Data
Hot Plug Dly 3~50 9
11. Bus Stop
ITEM Range Initial RF AV Componet PC HDMI/DVI
Main Loop On/Off Off
Eeprom On/Off Off
Tuner On/Off Off Same as Initial Data
Normal On/Off Off
Watch Dog On/Off On
12. Password 80 80 80 80
13. CheckSum 91A8
Samsung Electronics 4-25
Troubleshooting
14. Dynamic Contrast
ITEM Range Initial RF AV Componet PC HDMI/DVI
Dynamic On/Off Off
Same as Initial Data
Dynamic Dimming On/Off Off
FBE Y_MEAN Read - 100 Read Only
15. Spread Spectrum
ITEM Range Initial RF AV Componet PC HDMI/DVI
Spread Spectrum On/Off Off
Step 480i/576i 0~255 40
Rang 480i/576i 0~255 50
Step 480p/576p 0~255 30
Rang 480p/576p 0~255 50
Step 720p 0~255 30
Rang 720p 0~255 40
Step 1080i 0~255 30
Rang 1080i 0~255 45
Fixed Value about each mode.
Step 640*480 0~255 40
Rang 640*480 0~255 50
Step 800*600 0~255 40
Rang 800*600 0~255 55
Step 1024*768 0~255 40
Rang 1024*768 0~255 55
Step 1360*768 0~255 40
Rang 1360*768 0~255 55
FBE_Spectrum 1/2/3/4/Off 2
16. Reset
4-26 Samsung Electronics
Troubleshooting
4-2-4 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance.
Color Calibration
Adjust spec.
1. Source : HDMI
2. Setting Mode : 1280*720@60Hz
3. Pattern : Pattern #24 (Chess Pattern)
( Chess Pattern )
4. Use Equipment : CA210 & Master MSPG925 Generator
If you don't have any equipment we suggested, you may use the equipment to support the same mode and resolution with the
same Test Pattern.
Use other equipment only after comparing the result with that of the Master equipment.
Input mode Calibration Pattern
CVBS IN (Model_#1) Perform in NTSC B&W Pattern #24 Lattice
Component IN (Model_#6) Perform in 720p B&W Pattern #24 Lattice
Perform in VESA XGA (1024x768)
PC Analog IN (Model_#21) Lattice
B&W Pattern #24
HDMI IN Perform in 720p B&W Pattern #24 Lattice
Samsung Electronics 4-27
Troubleshooting
Method of Color Calibration (AV)
1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port
2) Press the Source key to switch to "AV1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "AV Calibration" menu.
6) In "AV Calibration Off" status, press the "" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "AV Calibration" status from Failure to Success.
Method of Color Calibration (Component)
1) Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port
2) Press the Source key to switch to "Component1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "Comp Calibration" menu.
6) In "Comp Calibration Off" status, press the "" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "Comp Calibration" status from Failure to Success.
Method of Color Calibration (PC)
1) Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port
2) Press the Source key to switch to "PC" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "PC Calibration" menu.
6) In "PC Calibration Off" status, press the "" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "PC Calibration" status from Failure to Success.
Method of Color Calibration (HDMI)
1) Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port
2) Press the Source key to switch to "HDMI1" mode
3) Enter Service mode
4) Select the "Calibration" menu
5) Select the "HDMI Calibration" menu.
6) In "HDMI Calibration Off" status, press the "" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) You can see the change of the "HDMI Calibration" status from Failure to Success.
4-28 Samsung Electronics
Troubleshooting
White Balance - Adjustment
If you don't have any equipment we suggested, you may use the equipment to support the same mode and resolution with the
same Test Pattern.
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 : NTSC composite, Component : 1280*720/60Hz,
HDMI[DVI] : 1280*720/60Hz
[ Test Pattern : MSPG-945 Series Pattern #16 ]
* Color temperature
1500K