www.freeservicemanuals.info 5/22/16 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.
www.freeservicemanuals.info 5/22/16 1. Precautions 1-1-4. Product Safety Notices Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage, wattage, etc.
www.freeservicemanuals.info 5/22/16 1. Precautions 1-3. Static Electricity Precautions Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effect transistors. The following techniques will reduce the incidence of component damage caused by static electricity. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground.
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". Model Name T22A300 T27A300 Vendor Panel CODE...
2. Product specifications 2-3. Accessories Product Description Code. No Remark Remote Control & Batteries AA59-00496A (AAA x 2) 4301-000121 T22A300 : 3903-000603 Power Cord T27A300 : 3903-000525 T22A300 : BN96-12485J Stand Base T27A300 : BN96-20897A Stand Body BN96-12487D Samsung Electronics Service center...
• 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. • Do not disconnect the USB device while it is loading.
www.freeservicemanuals.info 5/22/16 2. Product specifications • If a USB device connected to the TV is not recognized, the list of files on the device is corrupted or a file in the list is not played, connect the USB device to the PC, format the device and check the connection. •...
Page 12
www.freeservicemanuals.info 5/22/16 2. Product specifications Music Playing Music Press the ▲/▼/◄/► button to select the desired Music in the file list. Press the ENTER button. 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 13
www.freeservicemanuals.info 5/22/16 2. Product specifications My Downloads - Additional Functions Music/Photos Play Option menu During playing a file, press the TOOLS button. Category Operation Music Photos Shuffle Mode You can play the music randomly. Repeat Mode You can play movie and music files repeatedly. Picture Mode You can adjust the picture setting.
www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the Monitor. As this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1.
Page 15
www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly Description Picture Description Screws Remove the screws of Rear-Cover. 22" : 5 screws 27" : 7 screws 6003-001782 Lift up the rear-cover. Remove the left and right speaker. Remove the 4 screws of main board. Remove the 3 screws of SMPS board.
Page 16
www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly Description Picture Description Screws Lift up the panel. Reassembly procedures are in the reverse order of disassembly procedures. Published in Heiloo, Holland.
www.freeservicemanuals.info 5/22/16 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 18
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-2. 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 19
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Bottom Published in Heiloo, Holland.
Page 20
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-3. 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 21
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Top Published in Heiloo, Holland.
Page 22
www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS HDMI input (RX_Data, RX_Clk) LVDS output Published in Heiloo, Holland.
Page 23
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-4. 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 24
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Top Published in Heiloo, Holland.
Page 25
www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS LVDS output Published in Heiloo, Holland.
Page 26
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-5. 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 27
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Top 4-11 Published in Heiloo, Holland.
Page 28
www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS LVDS output 4-12 Published in Heiloo, Holland.
Page 29
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-6. 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 30
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Top 4-14 Published in Heiloo, Holland.
Page 31
www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS CVBS OUT (Grey Bar) LVDS output 4-15 Published in Heiloo, Holland.
Page 32
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-7. 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 Input the sound source properly.
Page 33
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts Main Board_Bottom 4-17 Published in Heiloo, Holland.
Page 34
www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS Speaker out 4-18 Published in Heiloo, Holland.
www.freeservicemanuals.info 5/22/16 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.
www.freeservicemanuals.info 5/22/16 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...
Page 37
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-3-3. Factory Data Option Factory Name Data Range Factory Reset Select Panel Type 12 : inch 3 : vendor 22D6TF0E / 22L6TF0E / 23A6TF0E 4 : refresh Type 24L6TF0E / 27A6TF0E / 27D6TF0E 5 : POL 6 : resolution 7 : multi 8 : BLU...
Page 38
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Control Factory Name Data Range EDID EDID ON/OFF EDID WRITE ALL … Download EDID data to EEPROM. EDID WRITE PC … Set "ON" of EDID ON/OFF Go EDID WRITE ALL and Push EDID WRITE HDMI … Enter or ►...
Page 39
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Control Factory Name Data Range Sound High Devi ON/OFF Carrier_Mute ON/OFF Speaker Delay Normal 0~255 Audio delay for Lipsync Control for ATV sound of stereo Pilot Level High Thld 0x28h 0x00~0xff /multiplex Control for ATV sound of stereo Pilot Level Low Thld 0x10h 0x00~0xff...
Page 40
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Factory Name Data Range 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 41
www.freeservicemanuals.info 5/22/16 4. Troubleshooting Factory Name Data Range 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...
Page 42
www.freeservicemanuals.info 5/22/16 4. Troubleshooting ADC WB Factory Name Data Range 2nd_G_H 0 ~ 255 2nd_B_H 0 ~ 255 Mode 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...
www.freeservicemanuals.info 5/22/16 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...
www.freeservicemanuals.info 5/22/16 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.
4-6. Servicing Information 4-6-1. USB Download Method (Main SW) 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-MSUMDEUC) upgrade into the USB port on the rear of the TV.
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. 4-8. Mechanical diagram T22A300 T27A300 Set with Stand 507.0 x 394.0 x 197.0 mm 642.1 x 473.7 x 217.3 mm...
www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-9. PCB diagram 4-9-1. PCB layout Mian PCB Main PCB 4-31 Published in Heiloo, Holland.
Page 48
www.freeservicemanuals.info 5/22/16 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-32 Published in Heiloo, Holland.
Page 49
www.freeservicemanuals.info 5/22/16 4. Troubleshooting SMPS PCB Model / Inch CODE 22” BN44-00467C PD22A0_BPNV Model / Inch CODE 27” BN44-00450A PD27A0_BDY 4-33 Published in Heiloo, Holland.
www.freeservicemanuals.info 5/22/16 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 (30p LVDS) Supply power from IP board to Driver Board.
Need help?
Do you have a question about the T22A300 and is the answer not in the manual?
Questions and answers