1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.
1. Precautions 1-2. Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
1. Precautions 1-4. Installation Precautions For safety reasons, more than a people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
2. Product specifications 2-2. Detail Factory Option If you replace the main board with new one, please change the factory option as well. ※ The options you must change are "Type" and "Front Color". 2-2-1. UD5003 / UD4003 Model Name UE22D5003BW UE40D5003BW UE19D4003BW...
TV’s USB port. • Before connecting your device to the TV, please back up your files to prevent them from damage or loss of data. SAMSUNG is not responsible for any data file damage or data loss.
Page 18
2. Product specifications Music Playing Music Press the ◄/►/▲/▼ button to select the desired Music in the file list. ENTERE � (Play) Press the button or button. – You can use � (REW) μ (FF) buttons during playback. N Only displays the files with MP3 and PCM file extension. Other file extensions are not displayed, even if they are saved on the same USB device.
Page 19
2. Product specifications Photos Viewing a Photo (or Slide Show) Press the ◄/►/▲/▼ button to select the desired Music in the file list. ENTERE � (Play) Press the button or button. – When a selected photo is displayed, press the ENTERE button to start the slide show.
Page 20
2. Product specifications 2-4-2. e-Manual How to view the e-Manual 2-14...
3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LED/LCD TV. WARNING: This LED/LCD TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly Cautions: 1.
Page 23
3. Disassembly and Reassembly Description Picture Description Screws Lift up the Rear-Cover. Remove the left and right speaker. Remove the 4 screws of Main Board. Remove the 5 screws of SMPS Board. 6003-001782 Remove the 6 screws of Bracket Stand Link & Guide.
Page 24
3. Disassembly and Reassembly Description Picture Description Screws Lift up the Panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...
Page 25
3. Disassembly and Reassembly UE32D4003 Description Picture Description Screws Place the TV face down on cushioned table. Remove 4 screws from the Stand.(machine type) 6001-002621 (Machine) Remove Stand. Remove the screws of Rear-Cover. • 26D4003 : Remove the 4 screws. •...
Page 26
3. Disassembly and Reassembly Description Picture Description Screws Remove the left and right speaker. Remove the 4 screws of Main Board. Remove the 5 screws of SMPS Board. 6001-002653 (Machine) Remove the 4 screws of Bracket Stand Link 6001-002653 (Machine) Remove the Stand Link.
Page 27
3. Disassembly and Reassembly UE22D5003 Description Picture Description Screws Place the TV face down on cushioned table. Remove 2 screws from the stand. (machine type) 6003-001782 Remove Stand. Remove the screws of Rear-Cover. • 19D4003/22D5003 : Remove the 4 screws. 6003-001782 Lift up the Rear-Cover.
Page 28
3. Disassembly and Reassembly Description Picture Description Screws Remove the 4 screws of Main Board. Remove the 3 screws of SMPS Board. 6003-000115 Remove the Stand Link. Lift up the Panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...
4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 4-1-1. Previous check Check the various cable connections first. • Check to see if any cables are damaged or burnt. • 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. Check the power input to the Main Board.
Page 30
4. Troubleshooting 4-1-2. Flip (UE40D5003BW*** / UE26/32D4003BW*** / LE40D503F7W*** / LE32D400E1W*** / LE32D403E2W***) 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 units appears to be dead.
Page 32
4. Troubleshooting No video (HDMI 1, 2 - Digital signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 35
4. Troubleshooting No Video (Tuner_CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 38
4. Troubleshooting No Video (Tuner DTV) Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 41
4. Troubleshooting No Video (Video CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 44
4. Troubleshooting No Sound Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the connection of sound cable Input the sound source properly.
Page 45
4. Troubleshooting Main Board_Bottom 4-17...
Page 46
4. Troubleshooting WAVEFORMS Speaker out 4-18...
Page 47
4. Troubleshooting 4-1-3. Non Filp (UE22D5003BW*** / UE19D4003BW***) 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 units appears to be dead. The IP 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.
Page 48
4. Troubleshooting Main Board_Bottom 4-20...
Page 49
4. Troubleshooting No video (HDMI 1, 2 - Digital signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 52
4. Troubleshooting No Video (Tuner_CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 55
4. Troubleshooting No Video (Tuner DTV) Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 58
4. Troubleshooting No Video (Video CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
Page 61
4. Troubleshooting No Sound Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the connection of sound cable ? Input the sound source properly.
Page 62
4. Troubleshooting Main Board_Bottom 4-34...
Page 63
4. Troubleshooting WAVEFORMS Speaker out 4-35...
4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction Usually, a color LED/LCD TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. Use the specified test equipment or its equivalent. Correct impedance matching is essential.
4. Troubleshooting 4-3. Factory Mode Adjustments 4-3-1. Entering Factory Mode To enter ‘Service Mode’ Press the remote -control keys in this sequence : - If you do not have Factory remote - control Power OFF INFO MENU MUTE Power ON - If you have Factory remot - control INFO FACTORY KEY...
4. Troubleshooting 4-3-3. Factory Data Option Factory Name Data Range Factory Reset 19A6TH0C/19I6TH0C/22D6TF0C/22I6TF0C /26A6AH0C/26D6AH0C/26L6AH0C/32A6AF0C Select Panel Type /32A6AH0C/32D6AF0C/32L6AH0C/37L6AF0C : inch /40A6AF0C/40D6AF0C/40L6AF0C/46A6AF0C : vendor /46D6AF0C/19A6TH0E/19L6TH0E/22D6TF0E : refresh Type /22L6TF0E/23A6TF0E/24L6TF0E/27A6TF0E : POL /32A6AH0E/32A6UF0E/32P6AH0E/32P6UF0E : resolution /32L6UF0E/32L6AH0E/37P6UF0E/40A6UF0E : multi /40P6UF0E/40H6UF0E/46A6UF0E/46P6UF0E ...
Page 67
4. Troubleshooting Control Factory Name Data Range EDID EDID ON/OFF EDID WRITE ALL … EDID WRITE PC … Download EDID data to EEPROM. 1. Set "ON" of EDID ON/OFF EDID WRITE HDMI … 2. Go EDID WRITE ALL and Push Enter or ...
Page 69
4. Troubleshooting Bandwidth Not modified Frequency Not modified LNA Status Not modified Not modified Modulation Not modified Code Rate Not modified Not modified Hier Modulation Not modified Frequency Offset Not modified Timing Offset Not modified Not modified Not modified PLL Type Not modified DEMOD Type Not modified...
Page 70
4. Troubleshooting C_BER_1 Not modified ADC_WB Factory Name Data Range AV Calibration Success Success / Failure Comp Calibration Success Success / Failure PC Calibration Success Success / Failure HDMI Calibration Success Success / Failure ADC Target 1st_AV_Low 0 ~1020 1st_AV_High 0 ~1020 1st_AV_Delta 0 ~ 7...
Page 71
4. Troubleshooting Sub Brightness 0 ~ 255 R_Offset 0 ~ 255 G_Offset 0 ~ 255 B_Offset 0 ~ 255 Sub Contrast 0 ~ 255 R_Gain 0 ~ 255 G_Gain 0 ~ 255 B_Gain 0 ~ 255 Movie R Offset 0 ~ 1023 Movie B Offset 0 ~ 1023 Movie R Gain...
4. Troubleshooting 4-4. White Balance - Calibration 4-4-1. White Balance -Calibration 1. Calibration AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-4-2. White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain B offset...
4. Troubleshooting 4-5. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance). Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes. The optimal values for each mode are configured by default.
4-6. Servicing Information 4-6-1. USB Download Method (Main SW & e-Manual) Samsung may offer upgrades for TV’s firmware in the future. Upgrades will be possible by connecting a USB drive to the USB port located on your TV. Insert a USB drive containing the firmware ( T-MSU4DEUC) upgrade into the USB port on the rear of the TV.
4. Troubleshooting 4-7. How To Upgrade Sub Micom 4-7-1. Sub S/W (in Factory mode) If you don't have DDC Manager, Use this method. Into the Factory Mode. Select "SVC". (Use r button.) Select "MICOM UPGRADE off". (use r button.) If message change from "off" to "wait", TV is upgrading Sub S/W. (It takes about 5 min.) If update completes, TV set will booting automatically.
4. Troubleshooting 4-8. Mechanical diagram 4-8-1. UD5003_40003 22D5003 40D5003 19D4003 26D4003 32D4003 Set with Stand 515.8 x 124 x 350.0 943.8 x 219.4 x 603.5 447.2 x 124 x 312.4 624.0 x 169.4 x 418.3 756.4 x 182.4 x 498.1 (W x D x H) Size Set without...
5. Wiring Diagram 5-3. Connector Functions Connector Functions Main IP (14p) Supply main power and dimming signal from IP Board to Main Board. The LVDS signal transfered from Main Board to Panel. Main T-CON (51p/30p LVDS) Supply power from IP board to Driver Board.