Page 1
LCD-TV Chassis : GAM19SE* GAM22SE* Model : LE19A65*A** LE22A65*A** SERVICE Manual TFT-LCD TV Contents 1. Precautions 2. Product specifi cations 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram LE19A65*A**/ LE22A65*A** Refer to the service manual in the GSPN (see the rear cover) for the more information.
Page 4
3. Disassembly and Reassemble 3. Disassembly and Reassemble This section of the service manual describes the disassembly and reassembly procedures for the LE19A656A1D LCD TV. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly Cautions: 1.
Page 5
3. Disassembly and Reassemble Description Picture Description Screws 2. Lift up rear cover and remove the stand. 3. Remove Screw from the stand BRKT and lift up the stand BRKT.
Page 6
3. Disassembly and Reassemble Description Picture Description Screws 4. Disonnect cable from the boards. 5. Remove the screws of Scaler board’s shield case and boards.
Page 7
3. Disassembly and Reassemble Description Picture Description Screws 6. Remove screws and Lift up the Lod pa Reassembly procedures are in the reverse order of disassembly procedures. ※...
Page 8
5. Exploded View & Part List 5. Exploded View & Part List 5-1. LE19A650A** Exploded View...
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 two 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.
Page 55
2. Product specifications Model LE22A65*A** Feature Digital TV(LE22A65*A**), RF, 1-HDMI, 1-Component, 1-AV, D-SUB � Brightness : 300cd/m � Contrast Ratio : 1000:1 � Response time : 8ms � Dynamic contrast � Specifications Item Description LCD Panel TFT-LCD panel, RGB vertical stripe, TN mode, normaly white, 22-inch viewable, 0.282(H) x 0.282(W) x 3 mm pixel pitch Scanning Frequency Horizontal : 30 kHz ~ 80 kHz (Automatic)
Page 56
2. Product specifications CHANNEL FREQUENCY TABLE OUTPUT FREQUENCY : ANALOG fv:45.75MHz, fs:41.25MHz DIGITAL Fc:44MHz TUNING STEP SIZE : FIRST PLL 250KHz SECOND PLL 62.5KHz OSD CH NO CH NO CH NO CH NO Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC 72.
Page 57
2. Product specifications OSD CH NO CH NO CH NO CH NO Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC 499.25 ULTRA 498.00 499.25 505.25 ULTRA 504.00 505.25 511.25 ULTRA 510.00 511.25 517.25 ULTRA 516.00 517.25 523.25 ULTRA 522.00 523.25 529.25...
2. Product specifi cations 2-2. Spec Comparison to the Old Models Model AMBER (LE19/22A656A1D) JASMINE(LE22S86BD) BORDEAUX PLUS(LE19R86BD) Design Display Type LCD TV LCD TV LCD TV Built-in Tuner LE22A656A1D : 1680 x 1050 Resolution 1680 x 1050 1440 x 900 LE19A656A1D : 1440 x 900 LCD Panel TFT LCD Panel 50Hz...
Page 59
READY: BN59-00676A Power Cord 3903-000145 19” : BN63-03039A Cover-Bottom 22” : BN63-04269B Owner’s Instructions BN68-01424A Samsung Electronics Service center Cleaning Cloth BN63-01798A Warranty Card / Registration Card / Safety Guide Manual (Not available in all locations) Stand Screw x 4 6002-001294 19”...
4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 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 61
4. Troubleshooting 4-1-1. No Power The LEDs on the front panel do not work when connecting the power cord. The SMPS relay does not work when connecting the power cord. Symptom 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 62
Does the digital data appear at the Check a IC5001. output of LVDS (RA5012~13)? Change a main PCB ass’y Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel? Caution Make sure to disconnect the power before working on the SMPS/IP.
Page 64
4. Troubleshooting 4-1-3. No Video (HDMI - Digital Signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source Major Check the SEMS01 checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off.
Page 65
4. Troubleshooting WAVEFORMS Digital Output Data Signal of HDMI(Data)
Page 66
PCB ass’y. Does the signal appear at R3169? Change a main PCB ass’y. Check the LVDS cable? Please, Call to Samsung Co. LTD. Replace the LCD panel? Caution Make sure to disconnect the power before working on the SMPS/IP.
Page 68
4. Troubleshooting 4-1-5. No Sound Symptom Audio is normal but no picture is displayed on the screen. Check the RF Source Major Check the SEMS01 checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Connect a sound cable.
Page 69
4. Troubleshooting WAVEFORMS The Signal are Inputed to IC2002 The Signal are Inputed to IC2001 4-10...
4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction Usually, a color 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 INFO MENU MUTE Power on - If you have Factory remote - control PICTURE ON DISPLAY FACTORY...
Page 72
4. Troubleshooting 4-3-3 Factory Data Option Table(Service) WB Adjust Information Checksum T-AMB22PEUMD-XXXX (Main Micom Ver.) T-PERLDEUC-XXXX(DTV MICOM Ver.) EDID: L12_1680_1050 Success (IF 19” 1440 x 900) HDCP Success Month/Day/Year Hour/Min./Sec. Advanced Menu 4-13...
Page 73
4. Troubleshooting Option Table(Service) Factory Reset Default Country(0x55) Others-0~3/Russia-4~5/Nordic-6~9 Ready Panel Inch 19”/22”/23”/26”/27”/32”/37”/40”/42”/46”/50”/52”/57” Dimm Type INT/INT_NEG/EXT_POS/EXT_NEG/EXT Panel Type 19A T/22A T/22D T/26A AG/26L AG/26D T/32L AG/32L NG/32D NG/32D AG/37L AG/37I NG/40L AG/40A AG/32A AG 7/32A AG 8/37L NG/26 D T NF/32D AG NF/32A AG NF/37L NG NF/37I NG NF/40L AG NF/40A AG NF/32A PB/26A PB/37L PB/40A PB Model Option Amber/Coral/Jade/Tanzanite/Hanaro/Jade_FBE/Pyrope/Pyrope_3D/Carnelian/...
Page 74
4. Troubleshooting 2. WB Adjust Calibration White Balance EPA Standard Movie WB 3. Information Checksum T-AMB22PEUMD-XXXX (Main Micom Ver.) T-PERLDEUC-XXXX(DTV MICOM Ver.) EDID: L12_1680_1050 Success (IF 19” 1440 x 900) HDCP Success Month/Day/Year Hour/Min./Sec. 4. Advanced Menu I. MST68981 1) ADC Calibration ADC Calibration AV/COMP/PC/HDMI/DTV CVBS Y Offs...
Page 75
4. Troubleshooting 2) Calibration Target AV ADC Target High Delta Comp ADC Target High Delta PC ADC Target High Delta ALL RGB Target High Delta 3) IPC/MJC 4) Picture Enhance Sharpness H1 Gain 0~63 H2 Gain 0~63 H3 Gain 0~63 H4 Gain 0~63 V1 Gain...
Page 76
4. Troubleshooting II. Option Block 1) FBE Pattern Select B-Slope Gain B-Tilt Min B-Tilt Max Lfunc-Basis Hfunc-Basis Mean-Offset1 Mean-Offset2 Mean Slope ACR Offset ACR Th1 ACR Th2 Skin Enable Skin Uv Mskin Uv Sub Color Msub Color 2) FRCS 3) FRCM 4) LD 5) PDP LOGIC 4-17...
Page 77
4. Troubleshooting III. Sound Saturation Mute FM Prescale AM Prescale Nicam Prescale FM M Prescale SC1 Vol SC2 Vol Audio Delay Audio Delay Time Ch1BW Ch2BW Num of Check Num of Double Check Mono Weight Stereo Weight Dual Weight BG M2S Threshold DK M2S Threshold BG S2M Threshold DK S2M Threshold...
Page 78
4. Troubleshooting IV. YC Delay PAL BG PAL DK PAL I SECAM BG SECAM DK SECAM L NTSC 358 NTSC 443 AV PAL AV SECAM AV NT358 AV NT443 AV PAL60 V. Adjust Video Mute time Dynamic Dimming Dynamic CE LNA Plus Megazine LNA DTV WatchDog...
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 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration ...
Page 80
4. 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”...
4. Troubleshooting 4-4-3 White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain B offset B gain (W/B adjustment Condition refer next page) 4-5. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).
Page 83
4. Troubleshooting Order Description ETC. Open the Flash Downloader. Before clicking the Click “Connect” icon, TV shoud be turned on. Click “Program” 4-24...
Page 84
Order Description ETC. Connect PC and TV Set with Serial cable. TV should be turned on. Open the Samsung Set-top Box upgrade Wizard. 1) Choose the DTV S/W by clicking “Browse” 2) After choosing the S/W, click the “Next” icon.
Page 85
4. Troubleshooting 4-6-3 After S/W Upgrade How to Access Service Mode Entering Factory Mode <Power OFF> → <INFO> → <MENU> → <MUTE> → <Power ON> Factory Data Option Table(Service) WB Adjust Information Advanced Menu If you want to enter here, press “0000”. How to Initialize.
6. Wiring Diagram 6-3. Connector Functions Connector Functions CN2101 <-> SPEAKER Connection Main Board and Speaker. * defective symptom : No sound but normal picture CN3002 <-> Function & IR Connection Main Board and Function & IR Assy. * defective symptom : Control panel & remocon doesn’t work CN6002_DIP<->...