Page 1
LED TV Chassis : U73A Model : UA32EH50*0R UA40EH50*0R UA42EH5000R UA46EH50*0R UA50EH50*0R UA22ES500*R SERVICE Manual LED TV Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Wiring Diagram UA**EH5000R...
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.
Page 5
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.
1. Precautions 1-2. Servicing Precautions An electrolytic capacitor installed with the wrong polarity might explode. WARNING Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. CAUTION If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
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.
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. Product Specifications 2-1. Product Information 2-1-1. Model Comparison Model UA**EH50*0R Front View * W : Width H : High D : Depth Detail View Front Color Black (Panel) Set with Stand 738.3 x 498.1 x 191.6 mm 32"...
Page 10
2. Product specifications Model UA**EH50*0R Set with Stand 6.4 kg 32" Set without Stand 5.7 kg Set with Stand 11.0 kg 40" Set without Stand 9.0 kg Set with Stand 11.5 kg Weight 42" Set without Stand 9.5 kg Set with Stand 14.0 kg 46"...
Page 11
2. Product specifications Model UA22ES500*R Front View * W : Width H : High D : Depth Detail View Front Color Black (Panel) Set with Stand 513.4 x 364.4 x 161.0 mm Dimensions 22" (W x H x D) Set without Stand 513.4 x 316.2 x 49.6 mm Set with Stand 3.5 kg...
Page 12
2. Product specifications 2-1-2. Feature & Specifications Model UA22ES500*R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 350 cd/m • High Contrast Ratio : 1,000:1 • Response Time : 5 ms Specifications Item Description LCD Panel 22 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic)
Page 13
2. Product specifications Model UA32EH50*0R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 350 cd/m • High Contrast Ratio : 6,900:1 • Response Time : 5.5 ms Specifications Item Description LCD Panel 32 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M colors...
Page 14
2. Product specifications Model UA40EH50*0R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 350 cd/m • High Contrast Ratio : 5,000:1 • Response Time : 5.5 ms Specifications Item Description LCD Panel 40 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M colors...
Page 15
2. Product specifications Model UA42EH5000R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 300 cd/m • High Contrast Ratio : 3,000:1 • Response Time : 6.5 ms Specifications Item Description LCD Panel 42 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic)
Page 16
2. Product specifications Model UA46EH50*0R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 350 cd/m • High Contrast Ratio : 5,000:1 • Response Time : 5.5 ms Specifications Item Description LCD Panel 46 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M colors...
Page 17
2. Product specifications Model UA50EH50*0R Feature • ATV, 2-HDMI, 1-Component, 1-A/V, 1-USB2.0(1.5A) • Brightness : 350 cd/m • High Contrast Ratio : 5,000:1 • Response Time : 5.5 ms Specifications Item Description LCD Panel 50 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M colors...
Page 18
2. Product specifications 2-1-3. Specification Comparison to Old Models Model UE5L(UA**E*50**R) LD5K(LA**D550K7R) Design Diplay Type FULL-LED TV LCD TV Built-in Tuner Resolution 1920 x 1080 1920 x 1080 LCD Panel TFT LCD Panel 60 Hz TFT LCD Panel 60 Hz Screen Size 22"/32"/40"/42"/46"/50"...
Page 19
2. Product specifications Model UE5L(UA**E*50**R) LD5K(LA**D550K7R) 3.5 kg_with Stand 5.2 kg_with stand 22" 22" 3.3 kg_without Stand 5.0 kg_without Stand 6.4 kg_with Stand 11.8 kg_with stand 32" 32" 5.7 kg_without Stand 9.1 kg_without Stand 11.0 kg_with Stand 15.8 kg_with stand 40"...
AA59-00607A Batteries (AAA x 2) 4301-000121 Power Cord 3903-000604 Warranty Card / Registration Card / Safety Guide Manual BN96-18704V (Not available in all locations) Holder-Wire Stand BN61-05491A Samsung Electronics Service center 22" BN96-21735F 32" BN96-21735F Stand 40" BN96-21736E 42" BN96-21736E 46"...
3. Disassembly and Reassemble 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LED TV. This LED TV contains electrostatically sensitive devices. Use caution when handling these components. WARNING 3-1. Disassembly and Reassembly Disconnect the LED TV from the power source before disassembly.
Page 23
3. Disassembly and Reassemble Description Picture Description Screws Remove the 1 screw of Cover Jack. 6003-001782 6003-002755 Remove 9 screws of Cover-Middle. Remove the Cover Jack. Remove the Cover-Middle.
Page 24
3. Disassembly and Reassemble Description Picture Description Screws Disconnect the Function Assy Cable. Remove the screws of Rear-Cover. 6003-001782 6003-002755...
Page 25
3. Disassembly and Reassemble Description Picture Description Screws Remove the Rear-Cover. Remove the screws of Main Board and SMPS Board and Panel. 6001-002756...
Page 26
3. Disassembly and Reassemble Description Picture Description Screws Remove the LVDS Cable and Panel Drive Cable. Remove the Speakers (L/R). NOTE 46 / 50 inch If you need to change speakers, you should ( ) not to fall out something in the Panel Holds.
Page 27
3. Disassembly and Reassemble UA22ES500*R Description Picture Description Screws Place TV face down on cushioned table. Remove 3 screws from the Stand. Remove Stand. NOTE If you want to remove the only rear 6003-001782 cover, you don`t need to remove the stand) Remove 5 screws of Rear-Cover.
Page 28
3. Disassembly and Reassemble Description Picture Description Screws Remove the screws of Main Board and SMPS Board. • Remove the 4 screws of Main Board. • Remove the 3 screws of SMPS Board. 6001-002756 NOTE (Machine) • If you need, Side Bracket also. •...
Page 29
3. Disassembly and Reassemble Screw Size Code No. COLOR A (mm) B (mm) C (mm) 6003-001782 BLACK 7.80~8.30 11.20~12.00 3.81~3.91 6001-002755 BLACK 7.1~7.5 5.7~6.0 2.98~3.02 6001-002756 WHITE 7.1~7.5 5.7~6.0 2.98~3.02...
3. Disassembly and Reassemble 3-2. Assy Board P-Jog Switch & Ir How to disassembly Description Picture Description Refer Check the 2 Locking Holders. Press both holders. Remove the Function Assy.
Page 31
3. Disassembly and Reassemble How to assembly Description Picture Description Refer Check the locking hole. Combine the function assy to locking hole. Press the function assy to TV. When you want to ignore the funtion key actions Option 0 : New Function (Naviagtion) Key Control Config Option Navigation Key Func...
3. Disassembly and Reassemble 3-3. Disassembly(PTC) How to disassembly Description Picture Description Refer Place TV face up on cushioned table. Remove the ASSY Function assy. Spread the both sides of PTC upper (marked "▼") by use the tool. CAUTION Do not scratch on both side by use tool. Gate Cof will be damaged.
Page 33
3. Disassembly and Reassemble Description Picture Description Refer Separate the left and right side of the PTC as shown. Separate the Bottom of the PTC as shown Raise up the PTC Bottom. Disassembly is complete. 3-12...
Page 34
3. Disassembly and Reassemble How to reassembly Description Picture Description Refer Attach the PTC Bottom first to the Panel. Secure the plastic latch on the left and right side of the PTC as shown. 3-13...
Page 35
3. Disassembly and Reassemble Description Picture Description Refer Visually inspect the spacing between the PTC and the Panel for equal clearance. CAUTION Combine to stick the PTC Rib into the middle mold. 3-14...
Page 36
3. Disassembly and Reassemble Description Picture Description Refer Assembly is complete. 3-15...
4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting Previous Check 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. Check the power input to the Main Board.
Page 38
4. Troubleshooting Main Ass’y (CN204_L, CN203_S) Power Ass’y (CMN801) B13V B13V B13V B13V B13V B13V B13V B13V B13VS SW_INV SW_INV B13VS B13VS B13VS B5.3V A5.3V A5.3V B5.3V B5.3V SW_PW SW_PW B5.3V * Change the 12 PIN to B13V(2012) from NC(2011) Check the power in &...
4. Troubleshooting 4-2. How to Check Fault Symptom No Power • The PD board relay does not work when connecting the power cord. Symptom • The units appears to be dead. The PD relay does not work when connecting the power cord if the cables are improperly connected or the Main Board or PD is not functioning.
Page 40
4. Troubleshooting Check the LVDS cable? Check the T-Con B’d? Please, Contact Tech support. Replace the LCD panel? Make sure to disconnect the power before working on the IP Board. Caution...
Page 44
4. Troubleshooting No video (HDMI1, 2 - Digital signal) Symptom Audio is normal but no picture is displayed on the screen. • Check the HDMI source Major • Check the X9N checkpoints • This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
Page 45
4. Troubleshooting Location of Parts Main Board_Front Detail Image EVENCLK-S ODDCLK-S ODDCLK+S EVENCLK+S...
Page 47
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 X9N checkpoints • This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
Page 48
4. Troubleshooting Location of Parts Main Board_Front Detail Image BD607 (B3.3V) BD604 (B1.8V) EVENCLK-S ODDCLK-S #5 (B3.3V) #2 (B1.8V) ODDCLK+S EVENCLK+S 4-12...
Page 50
4. Troubleshooting No video (Video CVBS, COMPONENT) Symptom Audio is normal but no picture is displayed on the screen. • Check the Video CVBS source and Component source. Major • This may happen when the LVDS cable connecting the Main Board and the Panel is checkpoints disconnected.
Page 51
4. Troubleshooting Location of Parts Main Board_Front Detail Image EVENCLK-S ODDCLK-S R804 R808 ODDCLK+S EVENCLK+S R806 R810 4-15...
Page 53
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 54
4. Troubleshooting Location of Parts Main Board_Front Detail Image R406 R405 R428_PC R428_PC BD217_L 4-18...
Page 55
4. Troubleshooting Waveforms Speaker out 4-19...
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 MENU Power On • If you have Factory remote control INFO Factory •...
Page 57
4. Troubleshooting 4-3-2. Factory Data Note • : I should not be possible to adjust or change that does not require a change item Black : Adjustment Services for the corresponding Blue : Items that are secured Option Factory Menu Name Data Range Remark...
Page 58
4. Troubleshooting Factory Menu Name Data Range Remark TTX LIST Flof Flof/List TTX Group Lang OSD Lang OSD/W Europe/E Europe/Russia/Greek/Turkey/ Arab/Farsi/ArabHbrw HotPlug Hotplugcontrol Spread Spectrum Spread Spectrum On/Off Period 40K/50K/60K Amplitude 0/0.5/1/1.5/2 DDR Spread Off/1%/2% FRC LVDS Spread FRC LVDS Period FRC LVDS Amplitude 1.0% FRC DDR Spread...
Page 59
4. Troubleshooting Factory Menu Name Data Range Remark Watchdog On/Off FRC LVDS Order DCAB FRC Auto Recovery LVDS Format JEIDA JEIDA / VESA OSD Resolution 1366*768 Bus Stop OTA Code OTA Duration Test Alternate Del Watch Dog Count E-POP Default Energy Star PDP Option Hotel Option...
Page 60
4. Troubleshooting Factory Menu Name Data Range Remark A2 IdentOff 0x00 0x00~0xFF A2 Carr2AmpOnThr 0x00 0x00~0xFF A2 Carr2AmpOffThr 0x00 0x00~0xFF A2 Carr2NsrOnThr 0x00 0x00~0xFF A2 Carr2NsrOffThr 0x00 0x00~0xFF Nicam Sig Error On 0x00 0x00~0xFF Nicam Sig Error Off 0x00 0x00~0xFF DTV Level -12dB Audio Delay...
Page 61
4. Troubleshooting Factory Menu Name Data Range Remark SIL2165FW1128 Factory Menu Name Data Range Remark Test pattern Mstar Test Pattern Off/0~13 FBE Test Pattern LOGIC Test Pattern Off/0~31 FRC Post Pattern FRC Pre Pattern FRC PC Mode T-CON Download ADC/WB ...
Page 62
4. Troubleshooting Factory Menu Name Data Range Remark 1st_Comp_Gain_cr 1st_Comp_Offset 1st_Comp_Offset_Cb 1st_Comp_Offset_Cr 1st_PC_R_Gain 1st_PC_G_Gain 1st_PC_B_Gatin 1st_PC_R_Offset 1st_PC_G_Offset 1st_PC_B_Offset 2nd_R_Offset 0~255 2nd_G_Offset 0~255 2nd_B_Offset 0~255 2nd_R_Gain 0~255 2nd_G_Gain 0~255 2nd_B_Gain 0~255 Sub Brightness 0~255 R_Offset 0~255 G_Offset 0~255 B_Offset 0~255 Sub Contrast 0~255 R_Gain 0~255...
Page 63
4. Troubleshooting Factory Menu Name Data Range Remark Msub Contr W1_RGAIN W1_BGAIN W1_ROFFS W1_BOFFS W2_RGAIN W2_BGAIN W2_ROFFS W2_BOFFS W3_RGAIN W3_BGAIN W3_ROFFS W3_BOFFS N_RGAIN N_BGAIN N_ROFFS N_BOFFS Movie Countr Movie Brigh Movie Color Movie Sharp Movie Tint Movie BkLight M.Gamma M_Sub Gamma EPA Standard Std Contr 0~100...
Page 64
4. Troubleshooting Factory Menu Name Data Range Remark Debug Mode Debug Off Debug Off/Debug Smart/Debug RunTime Back End Mute PDP FRC VisualTEST Plus Disable Standby Mode Time 45 Min 2 Min/45 Min Delete alt.ver 1 Flash OTA confirm Time 90 Min 3 Min/90 Min OTA limit Time 3 Hour...
4. Troubleshooting 4-4. White Balance 4-4-1. Calibration Into the Factory Mode. Select Menu. Select ADC/WB menu. Select menu. Option Control Expert AV Calibration ADC/WB Comp Calibration Advanced PC Calibration HDMI Calibration 4-4-2. Service Adjustment You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration ...
Page 66
4. Troubleshooting Method of Color Calibration (AV) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port. Press the Source key to switch to “AV1” mode. Enter Service mode. Select the “ADC” menu. Select the “AV Calibration” menu. In “AV Calibration Off”...
Page 67
4. Troubleshooting 4-4-3. Adjustment Into the Factory Mode. Select Menu. ADC/WB Select menu. Select White Balance menu. Option Control (low light) (hight light) Expert Sub Brightness Sub Contrast White Balance ADC/WB R offset R gain Advanced G offset G gain B offset B gain 4-31...
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.
Page 69
W/B High MOVIE W/B Low Fixed Parameter Sub Contrast Sub Bright R-Gain G-Gain B-Gain R-Offset G-Offset B-Offset • UA42EH5000R - AUO P-Mode Section Adjustment Coordinate CA-210 Input source HDMI W/B High COMP VIDEO W/B Low W/B High MOVIE W/B Low...
Page 70
4. Troubleshooting • UA46EH50*0R - AUO P-Mode Section Adjustment Coordinate CA-210 Input source HDMI W/B High COMP VIDEO W/B Low W/B High MOVIE W/B Low Fixed Parameter Sub Contrast Sub Bright R-Gain G-Gain B-Gain R-Offset G-Offset B-Offset • UA50EH50*0R P-Mode Section Adjustment Coordinate CA-210 Input source...
4. Troubleshooting 4-6. Software Upgrade Software Upgrade can be performed by downloading the. latest firmware from samsung.com to a USB memory device. • Current Version - The software already installed in the TV. • Software is represented as ‘Year/Month/Day_Version’. 4-6-1. How to Check the Software Version Use the Main Menu ...
Page 72
4. Troubleshooting 4-6-2. How to Upgade Software and Micom Insert a USB drive containing the firmware upgrade downloaded from samsung.com into the TV. Note Please be careful not to disconnect the power or remove the USB drive while upgrades are being applied.
5. Wiring Diagram 5-3. Connector Functions UA**EH50*0R Connector Function Supply main power and dimming signal from IP board to Main Board. CN201 IP CNM803 Translate the LVDS Signal. CN1301_L_FHD T-CON CNF1 Power Supply to Panel. IP CNL802 PANEL Driver Board UA22ES500*R ...
Need help?
Do you have a question about the UA42EH5000R and is the answer not in the manual?
Questions and answers