Summary of Contents for Samsung LA32A330J1N Series
Page 1
LCD-TV Chassis : GJE32ASA-N61A Model : LA32A330J1N** 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 LA32A330J1N** Refer to the service manual in the GSPN (see the rear cover) for the more information.
3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LA32A330J1N** LCD TV. WARNING: This TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly Cautions: 1.
Page 5
3. Disassembly and Reassembly Description Picture Description Screws 3. Remove Screw from the stand BRKT. Lift up the stand BRKT.
Page 6
3. Disassembly and Reassembly Description Picture Description Screws 4. Disconnect a cable from the Main&IP boards. Remove a Cable. 5. Remove the screws of the Main & IP boards. Remove the Main & IP boards.
Page 7
3. Disassembly and Reassembly Description Picture Description Screws 6. Remove the Screw from Front Assy. Lift up the Panel BRKT. x 10 7. Remove the screws from Panel BRKT. Remove the Panel BRKT. Reassembly procedures are in the reverse order of disassembly procedures. ※...
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.
2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model LA32A330J1N** Feature RF, 2-HDMI, 2-Component, 1-AV, D-SUB � Brightness : 550cd/m � Contrast Ratio : 1500:1 � Response time : 6.5ms � Dynamic contrast � Specifications Item Description LCD Panel TFT-LCD panel, RGB vertical stripe, normaly black, 32-Inch viewable, 0.51075(H) x 0.51075(W) x 3 mm pixel pitch Scanning Frequency...
Page 72
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 73
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...
Page 74
2. Product specifi cations 2-2. Specifi cation Comparison to Old Models Model HANARO (LA32A330J1N**) JASMINE (LA32S81BX**) Design Display Type LCD TV LCD TV Built-in Tuner Resolution 1366 x 768 1366 x 768 LCD Panel TFT LCD Panel 50Hz TFT LCD Panel 50Hz Screen Size 32”...
2. Product specifications 2-3. Accessories Product Description Code. No Remark Remote Control & Batteries BN59-00676A (AAA x 2) Power Cord 3903-000145 Cover-Bottom BN63-04269B Samsung Electronics Service center Owner’s Instructions BN68-01424A Cleaning Cloth BN63-01798A Stand Screw x 4 6002-001294 Stand BN90-01580A...
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 78
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 79
Check a IC5. output of LVDS Data(IC5 #81~96)? Change a main PCB ass’y Check a LVDS Cable Connection? Please, Call to Samsung Co. LTD. Replace a lcd panel? Caution Make sure to disconnect the power before working on the SMPS/IP.
Page 81
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 (IC1005) checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off.
Page 82
4. Troubleshooting WAVEFORMS Digital Output Data Signal of HDMI(Data)
Page 83
Does the signal appear at Check a IC5. R3235 of TU3002_RDY? 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 85
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 86
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 89
4. Troubleshooting 4-3-3 Factory Data Option Table(Service) WB Adjust Information Checksum T-HNRMEAM-XXXX (Main Micom Ver.) EDID: L12_1366_768 Success HDCP Success Month/Day/Year Hour/Min./Sec. Advanced Menu 4-13...
Page 90
0~63 (12) Auto Power On/Off LNA Menu On/Off Hotel Option On/Off D.Gamma Off/0.85/0.88/0.90/0.93/0.95/0.98/M1/M2/M3/M4 Tuner Select XUGUANG English/China/French Language Ch Table SUWON/SESK/SHE/TTSEC/SEIN/SDMA/TSED/SAVINA/SIEL/TSE SAMSUNG Shop Mode On/Off Nordic On/Off Arabic On/Off NT Conversion On/Off Control PDP Filter PDP Group Spread Spectrum 4-14...
Page 91
4. Troubleshooting 2. WB Adjust Calibration White Balance EPA Standard Movie WB 3. Information Checksum T-HNRMEAM-XXXX (Main Micom Ver.) EDID: L12_1366_768 Success 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 0~255 CVBS Y Gain 0~255...
Page 92
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 93
4. Troubleshooting II. 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 94
4. Troubleshooting III. 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 IV. 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 96
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 99
4. Troubleshooting Order Description ETC. Open the Flash Downloader. Before clicking the Click “Connect” icon, TV shoud be turned on. Click “Program” 4-23...
4. Troubleshooting 4-6-2 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 CN1001 <-> CN802 1. Supply main power from SMPS to Main Board. * defective symptom : No Power 2. Supply dimming power from SMPS to Main Board. * defective symptom : No picture CN1 <->...