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LCD-TV Chassis : N89B/N89A Model : LA19C350D1 LA22C350D1 LA26C350D1 LA32C350D1 SERVICE Manual TFT-LCD TV Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram LA19C350D1/LA22C350D1 LA26C350D1/LA32C350D1 Refer to the service manual in the GSPN (see the rear cover) for the more information.
4-5. How To Upgrade ......................4-27 4-6. Servicing Information ....................4-27 5. Exploded View & Part List ..................5-1 5-1. LA19C350D1 Exploded View ..................5-1 5-2. LA19C350D1 Parts List ....................5-3 5-3. LA22C350D1 Exploded View ..................5-5 5-4. LA22C350D1 Parts List ....................5-7 5-5.
3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LCD TV. WARNING: This LCD TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly (LA19", 22"C350) Cautions: 1.
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3. Disassembly and Reassembly Description Picture Description Screws 3. Lift up the rear-cover. 4. Remove the left and right speaker. 5. Remove the 4 screws of main board and 22"_C350 4 screws (22"C350 : 6 screws) of IP board. 6003-000269 (M3 x L6, TAPTYPE) 6003-001439 19"_C350...
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3. Disassembly and Reassembly Description Picture Description Screws 7. Lift up the stand link. 8. Lift up the panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...
3. Disassembly and Reassembly 3-2. Disassembly and Reassembly (LA26", 32"C350) Cautions: 1. Disconnect the LCD TV from the power source before disassembly. 2. Follow these directions carefully; never use metal instruments to pry apart the cabinet. Description Picture Description Screws 1.
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3. Disassembly and Reassembly Description Picture Description Screws 3. Lift up the rear-cover. 4. Remove the 3 screws of main board and 4 screws of IP board. Caution : This hole is the screw point to assemble the Rear Cover. 6003-001188 (M4, L10, TAPTYPE) 5.
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3. Disassembly and Reassembly Description Picture Description Screws 6. Remove the 8 screws of Panel. 6002-001294 (M4, L16,Tapping) 6003-001188 (M4, L10, TAPTYPE) 7. Lift up the panel. 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 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. Feature & Specifications Model LA19C350D1 Feature RF, 1-HDMI, 1-Component, 1-AV, 1-USB2.0, D-SUB, MEDIA PLAY, Headphone Out ሪ Brightness : 350cd/m ሪ Contrast Ratio : 3000:1 ሪ Response time : 8.5ms ሪ Specifications Item...
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2. Product specifications Model LA22C350D1 Feature RF, 1-HDMI, 1-Component, 1-AV, 1-USB2.0, D-SUB, MEDIA PLAY, Headphone Out ሪ Brightness : 350cd/m ሪ Contrast Ratio : 3000:1 ሪ Response time : 8.5ms ሪ Specifications Item Description LCD Panel 22 inch HD 60Hz Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 40 Hz ~ 75 Hz (Automatic)
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2. Product specifications Model LA26C350D1 Feature RF, 1-HDMI, 1-Component, 1-AV, 1-USB2.0, D-SUB, MEDIA PLAY, Audio Out ሪ Brightness : 350cd/m ሪ Contrast Ratio : 3000:1 ሪ Response time : 8.5ms ሪ Specifications Item Description LCD Panel 26 inch HD 60Hz Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 40 Hz ~ 75 Hz (Automatic)
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2. Product specifications Model LA32C350D1 Feature RF, 1-HDMI, 1-Component, 1-AV, 1-USB2.0, D-SUB, MEDIA PLAY, Audio Out ሪ Brightness : 400cd/m ሪ Contrast Ratio : 3000:1 ሪ Response time : 8.5ms ሪ Specifications Item Description LCD Panel 32 inch HD 60Hz Scanning Frequency Horizontal : 43 kHz ~ 53 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic)
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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 (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA...
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2. Product specifications (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA 791.25 791.25 791.25 791.25 791.25 799.25 799.25 799.25 799.25 799.25 807.25 807.25 807.25 807.25 807.25 815.25 815.25 815.25 815.25 815.25 823.25...
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2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 46.25 57.25 49.75 64.25 57.75 55.25 86.25 65.75 61.25 95.25 77.25 67.25 102.25 85.25 77.25 175.25 168.25 83.25 182.25 176.25 175.25 189.25 184.25 181.25 196.25 192.25 187.25 209.25 200.25...
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2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 695.25 823.25 699.25 702.25 831.25 705.25 709.25 839.25 711.25 716.25 847.25 717.25 723.25 855.25 723.25 730.25 863.25 729.25 737.25 735.25 744.25 741.25 751.25 747.25 758.25 753.25 765.25 759.25 772.25...
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2. Product specifications Cable CHANNEL (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA 105.25 103.25 103.25 105.25 105.25 112.25 111.25 111.25 112.25 112.25 119.25 119.25 119.25 119.25 119.25 126.25 127.25 127.25 126.25...
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2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 105.25 112.25 73.25 112.25 120.25 55.25 119.25 128.25 61.25 126.25 136.25 67.25 133.25 144.25 77.25 140.25 152.25 83.25 147.25 160.25 175.25 154.25 224.25 181.25 161.25 232.25 187.25 168.25 240.25...
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2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 475.25 481.25 487.25 493.25 499.25 505.25 511.25 517.25 523.25 529.25 535.25 541.25 547.25 553.25 559.25 565.25 571.25 577.25 583.25 589.25 595.25 601.25 607.25 613.25 619.25 625.25 631.25 637.25 643.25...
2. Product specifications 2-3. 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”. Model Name LA19C350D1 LA22C350D1 LA26C350D1 LA32C350D1 Vendor CHILIN CHILIN...
2. Product specifications 2-4. Wall Mount * The wall mount's SCREW point have Filim tape for Dust protection(Panel). So, If User want use Wall mount, Remove Wall mount's Film tape. Model LC3D(LA**C350D1D) Wall mount Point * LC3D Model 's Wall mount point have Film tape 1.
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.
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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.
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Does the digital data appear at the Check a IC4000. Change a main PCB ass’y output of LVDS Cable? Check a LVDS cable? Replace a lcd panel? Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
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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 M-star checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. 19"/22"_C350 26"/32"_C350 Power Indicator is off.
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4. Troubleshooting WAVEFORMS Digital Output Data Signal of HDMI(Data)
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Does the Signal appear at C4022 Change a main PCB ass’y. of IC4000? Diagnostics Check the LVDS cable? Replace the LCD panel? Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
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Lamp on, no picture. Does the signal appear at C4025 of Check a connection harness. IC4000? Check a LVDS cable ? Replcelcd panel? Diagnostics Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
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4. Troubleshooting WAVEFORMS CVBS Output Signal 4-10...
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4. Troubleshooting 4-1-6. 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. 19"/22"_C350 26"/32"_C350 Check the source and check the connection of sound cable Input the sound source properly.
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4. Troubleshooting WAVEFORMS The Signal are Inputed to IC1201 The Signal are Inputed to IC1202 4-12...
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 INFO FACTORY - The buttons are active in the service mode.
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4. Troubleshooting Hotel Hotel Mode On/Off Option Power On Channel 0~99 Power On Band TV, AV1, AV2, Compon1, Component2, PC, HDMI1, HDMI2, Power On Source HDMI3, HDMI4 Power On Volume 0 ~ 100 Min Volume 0 ~ 100 Max Volume 0 ~ 100 Local Key Lock On/Off...
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4. Troubleshooting Sound Detection Threshold M2S Thr High 0~255 M2S Thr Low 0~255 S2M Thr High 0~255 S2M Thr Low 0~255 Amp On Thr High 0~255 Amp On Thr Low 0~255 Amp Off Thr High 0~255 Amp Off Thr Low 0~255 NSR On Thr High 0~255...
4. Troubleshooting Advanced Menu MST69A84HQ VDEC SYNC_LVL 0~255 HPLL_MD HPLL_SPD1 0~63 HPLL_SPD2 0~255 CBCRLP_MD YC_DLY IFCOMP 0~63 SAT_ADJ 0~255 YSEPFLT NOISE_LVL 0~255 IPC/MJC Film Det Speed NT 0~255 Film Det Speed PAL 0~255 Motion Hist Motion History Color Space Red Sat 0~30 Red Hue...
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4. Troubleshooting Pattern Select 0~25 B-Slope Gain 0~255 B-Tilt Min 0~255 B-Tilt Max 0~255 LFuc-Basis 0~255 HFuc-Basis 0~255 Mean-Offset1 0~255 Mean-Offset2 0~255 Mean-Slope 0~255 ACR Offset 0~127 ACR Th1 0~255 ACR Th2 0~255 Skin Enable 0~255 Skin Uv 0~255 Mskin Uv 0~255 Sub Color 0~255...
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4. Troubleshooting EPA Standard Std Contr 0~100 Std Bright 0~100 Std Sharp 0~100 Std Color 0~100 Std Tint 0~100 Std Backlight 0~10 Adjsut Dynamic Dimming On/Off Dynamic CE Dynamic CE On/Off B Slope On/Off LNA Plus RF Db 0 Level 0~255 RF Db 1 Level 0~255...
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4. Troubleshooting Sharpness H1 Gain 0~63 H2 Gain 0~63 H3Gain 0~63 H4 Gain 0~63 V1 Gain 0~63 V2 Gain 0~63 H Overshoot B1 0~255 H Overshoot B2 0~255 V Overshoot B5 0~255 V Overshoot B8 0~255 H Undershoot B1 0~255 H Undershoot B2 0~255 V Undershoot B5...
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 Adjust spec.
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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"...
4-6-1 USB Download Method Samsung may offer upgrades for TV’s firmware in the future. Please contact the Samsung call center to receive information about downloading upgrades and using a USB drive. Upgrades will be possible by connecting a USB drive to the USB port located on your TV.
6. Wiring Diagram 6-3. Connector Functions Connector Functions ↔ Supply main power and dimming signal from IP board to Main Board. CN1001 CNM802 ↔ The LVDS signal transfered from Main Board to Panel. CN7001 Panel 6-4. Cables Main IP (12P for LC350) Main - TCON 26", 32"...