Samsung B1930HD Service Manual
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Samsung B1930HD Service Manual

Samsung B1930HD Service Manual

Chassis lpt19ds, lpt20ds, lpt22ds, lpt23ds, lpt24ds, lpt24as
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SERVICE
TFT-LCD Monitor
B1930HD / B2030HD / B2230HD /
B2330HD / B2430HD
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LPT19DS / LPT20DS /
LPT22DS / LPT23DS/
LPT24DS / LPT24AS
Model
: B1930HD / B2030HD /
B2230HD / B2330HD /
B2430HD(EU) /
B2430HD(Australia)
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contents

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Summary of Contents for Samsung B1930HD

  • Page 1 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram B1930HD / B2030HD / B2230HD / B2330HD / B2430HD Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-11. Software Upgrade ....................... 4-17 4-12. Micom Program Upgrade ..................4-18 5. Exploded View & Part List 5-1. Exploded View (B1930HD) ..................... 5-1 5-2. Exploded View (B2030HD) ..................... 5-2 5-3. Exploded View (B2230HD) ..................... 5-3 5-4. Exploded View (B2330HD) ..................... 5-4 5-5.
  • Page 3 Mideast & Africa http://mea.samsungportal.com © 2010 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.
  • Page 4 3. Disassembly and Assembly 3. Disassembly and Assembly This section describes the disassembly and reassembly sequences for this monitor. Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1. Disassembly Caution: 1. Turn the monitor off before beginning the disassembly process. 2.
  • Page 5 3. Disassembly and Assembly Description Photo Screws 3. Turn the monitor over again .
  • Page 6 3. Disassembly and Assembly Description Photo Screws 4. Turn the monitor over again to remove the back cover. 5. After disassembling the Rear-Cover, prepare for the internal disassembly as shown in the picture on the right. LVDS LAMP WIRE Screws Function&Speaker wire 6.
  • Page 7 3. Disassembly and Assembly Description Photo Screws 8. Remove the Function & SPK wires. 9. Remove the SPK upwards. 10. Remove the Assy Shield-Cover. Disassemble the PCB inside the Assy. 11. Disassemble the panel. ※ Reassembly procedures are in the reverse order of disassembly procedures.
  • Page 8 5. Exploded View & Part List 5-1. LS23PTDSF/EN Exploded View (B2330HD) R001A CS02A AC352 M0014 M0215 MASB1 M0027 F001A P001A SP01A 5-1-1. LS23PTDSF/EN Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark F001A BN96-12455E ASSY COVER P-FRONT;Plum MFM 23 (B2330HD) M0215 BN07-00609A LCD-PANEL;LTM230HT01,SSRZTS,6Bit + Hi-FR...
  • Page 9 5. Exploded View & Part List 5-2. LS23PTDSF/EN Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS23PTDSF/EN BN90-02391D ASSY COVER FRONT;cancel F001A BN96-12455E ASSY COVER P-FRONT;Plum MFM 23 (B2330HD) ...3 W392 6003-000282...
  • Page 10 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 JA332 3722-002691 JACK-PIN;2P,Ni,WHT/RED,STRAIGHT ...3 JA331 3722-002703 JACK-PIN;3P,Ni,GRN/BLU/RED,STRAIGHT ...3 CIS3 BN40-00173A TUNER;DTOS40CVL081A,DVB-T/C,164CH,38.9MH ...3 BN97-03630E ASSY SMD;LS23PTDSF/EN,BN94-02646E ..4 0202-001477 SOLDER-CREAM;LST309-M,D20~45um,96.5Sn/3A 3.476 ..4 DS01A 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 0401-001099...
  • Page 11 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 ARR2 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 ..4 KAR11 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 ..4 R105 2007-000138 R-CHIP;100ohm,5%,1/16W,TP,1005 ..4 AR49 2007-000140 R-CHIP;1Kohm,5%,1/16W,TP,1005 ..4 MR306 2007-000141 R-CHIP;2.2Kohm,5%,1/16W,TP,1005 ..4 AVR73 2007-000142 R-CHIP;2.7Kohm,5%,1/16W,TP,1005 ..4 R319...
  • Page 12 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 PC43 2203-000233 C-CER,CHIP;0.1nF,5%,50V,C0G,TP,1005 ..4 MC302 2203-000425 C-CER,CHIP;.018nF,5%,50V,C0G,TP,1005 ..4 C254 2203-000438 C-CER,CHIP;1nF,10%,50V,X7R,TP,1005 ..4 C507 2203-000489 C-CER,CHIP;2.2nF,10%,50V,X7R,TP,1005 ..4 FC04 2203-000552 C-CER,CHIP;0.02nF,5%,50V,C0G,1608 ..4 AD480 2203-000679 C-CER,CHIP;0.027nF,5%,50V,C0G,1005 ..4 DC25...
  • Page 13 BN68-01570A LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark ACCE1 BN92-06155A ASSY ACCESSORY;LS22PTDSF/EN T0268 3903-000452 CBF-POWER CORD;DT,EU/KR,CP3,IEC320 C13,2 EC29 BN39-00244H CBF SIGNAL-D-SUB TO D-SUB;D-sub cable,15 T0074 BN59-01012A REMOCON;TM950,SAMSUNG,20PIN SINGLE,48KEY M0027 BN96-12485A ASSY STAND P-BASE;PLUM 22~24,ABS+PMMA(SF ...3 M0081 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SWRC ...3 CIS4 BN61-01717A HOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5) ...3 BN63-06313A COVER-STAND BASE;PLUM23,ABS+PMMA(SF-0950...
  • Page 14 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..5 BN61-02932E BRACKET-STOPPER NUT;ECOFIT 20,M4,D8,L12, ...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.05,680mm,20 ...3 BN68-02466C LABEL-STICKER;PLUM,ALL,ART PAPER,50,10,S ACCE1 BN96-13948H ASSY ACCESSORY;LS19PTDSF/EN,20,22,23,24 EC08 BN39-01286A CBF SIGNAL-STEREO;3p,UL2547, Audio Stand BN92-06607A ASSY BOX;LS23PT,30-MFM T0077...
  • Page 15 5. Exploded View & Part List Memo...

  • Page 16: Precautions

    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 17: Servicing Precautions

    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.

  • Page 18: Installation 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 19 1. Precautions Memo...

  • Page 20: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Feature Supreme Digital Interface & Networking ሪ - With a built-in ATV tuner, it supports TV with no particular set-top box and provides simple access with a single remote control. Excellent Picture Quality ሪ...
  • Page 21 2. Product specifications Specifications Item Description Model B1930HD B2030HD B2230HD LCD Panel TFT-LCD Panel, RGB TFT-LCD Panel, RGB TFT-LCD Panel, RGB Vertical stripe, normally Vertical stripe, normally Vertical stripe, normally White, 18.5-Inch viewable, White, 20-Inch viewable, White, 21.5-Inch viewable, 0.2768(H) X 0.2768(V)mm 0.24825(H) X 0.24825(V)
  • Page 22 2. Product specifications Specifications Item Description Model B2330HD B2430HD (EU and Australia) LCD Panel TFT-LCD Panel, RGB Vertical stripe, TFT-LCD Panel, RGB Vertical stripe, normally White, 23-Inch viewable, normally White, 24-Inch viewable, 0.27675(H) X 0.27675(V)mm Pixel Pitch 0.2655(H) X 0.2655(V)mm Pixel Pitch Scanning Frequency Horizontal : 30 kHz ~ 81 kHz (Automatic) Vertical: 56 Hz ~ 75 Hz (Automatic)

  • Page 23: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models 30-MFM CREAM-MFM Model B1930HD / B2030HD / B2230HD / 2333HD B2330HD / B2430HD Design Screen Size 18.5”/ 20”/ 21.5”/ 23”/ 24” 23” 1366X768(HD) 60Hz : B1930HD 1600X900 60Hz : B2030HD...

  • Page 24: Accessories

    & BN59-01012A Batteries (AAA x 2) 3903-000452 & Power Cord 3903-000440 (Australia) Stand Body BN96-12487A Stand Base BN96-12485A Samsung Electronics Service center D-Sub Cable BN39-00244H BN59-01091A User’s Guide, & Monitor Driver, BN59-01091F Natural Color Pro Software (Australia) Cleaning Cloth BN63-01798B...
  • Page 25 2. Product specifications Memo...

  • Page 26: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. First Checklist for Troubleshooting Self-Test Feature Check „ Your monitor provides a self test feature that allows you to check whether your monitor is functioning properly. Turn off both your computer and the monitor. Unplug the video cable from the back of the computer Turn on the monitor.

  • Page 27: No Power

    4. Troubleshooting 4-2. No Power The LED on the front panel of the monitor does not work when the power is connected and the Symptom Power button is pressed. Check if the Power switch on the rear panel of the monitor has been turned on. Check the SMPS fuse and the IP-Board output power.
  • Page 28 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...
  • Page 29 4. Troubleshooting 4-2-2. Waveforms ① ②...

  • Page 30: Pc (Analog) No Screen

    4. Troubleshooting 4-3. PC (ANALOG) No Screen The LED power is on but no picture is displayed on the screen when the D-SUB cable is Symptom connected Even though the LED power turns on, the screen is blank when connecting the VGA cable. Check the D-sub cable connections.
  • Page 31 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
  • Page 32 4. Troubleshooting Analog PC 4-3-2. Waveforms when no screen is displayed ( ④ ⑤...

  • Page 33: Dvi/Hdmi No Screen

    4. Troubleshooting 4-4. DVI/HDMI No Screen The LED power turns on but the screen is blank when the HDMI cable is connected. Symptom Check the HDMI cable connections. Check whether the LVDS cable is connected correctly to the panel. Major checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 34 4. Troubleshooting 4-4-1. Circuit diagrams and waveforms (DVI/HDMI No Screen) when no screen is displayed on the monitor...
  • Page 35 4. Troubleshooting 4-4-2. Waveforms when a blank screen is displayed (DVI/HDMI No Screen) ⑧ ⑨ 4-10...

  • Page 36: Faults And Corrective Actions

    4. Troubleshooting 4-5. Faults and Corrective Actions Fault Photo Symptoms and Corrective Actions Remarks Symptoms: DVI signals are not recognized. * Refer to the Training Manual for information on inputting the DVI DDC. Causes: This fault occurs when the PC does not recognize the mode information because the DVI DDC has not been input to the monitor.

  • Page 37: Adjustment

    4. Troubleshooting 4-6. Adjustment 4-6-1. Service Instruction 1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. 2. Use the specified test equipment or its equivalent. 3. Correct impedance matching is essential. 4.
  • Page 38 4. Troubleshooting 4-7-3. Sub-Page of Service - OPTION - SVC - ADC/WB - Control 4-13...

  • Page 39: White Balance -Calibration

    4. Troubleshooting 4-8. White Balance - Calibration 4-8-1 White Balance -Calibration 1. Calibration PC Calibration 4-8-2 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration „ Adjust spec. 1. Source : PC 2.

  • Page 40: White Ratio (Balance) Adjustment

    4. Troubleshooting 4-8-3 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) 4-9. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).

  • Page 41: Servicing Information

    4-10. Servicing Information 4-10-1 USB Download Method 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 upgrade into the USB port on the rear of the TV.

  • Page 42: Software Upgrade

    4. Troubleshooting 4-11. Software Upgrade 4-11-1. Program Upgrading - MAIN 1. If you select MENU → Support → Software Upgrade on remote control, you’ll see below picture 2. Press ENTER, then you’ll see below picture. Select Yes 3. Micom program is now upgrading as below picture. After Software Upgrade is process by 100%, the monitor is automatically turn off and on.
  • Page 43 4. Troubleshooting 4-12. Micom Program Upgrade DDC Manager Connection „ 1. Prepare PC to Upgrade the Program. PC for MCU upgrading Connect to Parallel port 2. Prepare the DDC Manager 3. Connect D-sub cable to Target Monitor TV 4. Power on the Target Monitor TV winDDC_V2-39 Program installed Run winDDC 4-18...
  • Page 44 „ 1. Select WinISP Menu 2. Make same setting like picture. 3. Choose Device Type. - 30-MFM(B1930HD/B2030HD/B2230HD/B2330HD/B2530HD:WT61P8 4. Load File ( Select file to download) 5. Set Option to load Binary Files 6. Select files (hex file) 7. Click button to load files...
  • Page 45 4. Troubleshooting 8. Check the OK message (Load) 9. Click Auto Program button 10. If you see OK message (Verify), program download is completed 4-20...

  • Page 46: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram...

  • Page 47: Board Connection - Main Board

    6. Wiring Diagram 6-2. Board Connection - Main Board Connect with IP LVDS Connector board (Connect to Panel) Common Interface (CI-Slot) * EU models only USB (Program Headphone Update) PC Stereo HDMI / DVI PC Analog Digital Audio EXT In/Output Output (Scart) (Optical)

  • Page 48: Connector Functions

    * When a problem occurs: The No USB Download Operating error may occur. CN801 Component Audio input terminal. * When a problem occurs: The No Speaker Output error may occur. CN1301 Headphone output terminal. 6-4. Cables LVDS 30P FFC cable Item B1930HD / B2030HD B2230HD B2330HD B2430HD Code BN96-12453S BN96-12453R BN96-12453Q BN96-12453P...
  • Page 49 6. Wiring Diagram Memo...

This manual is also suitable for:

B2030hdB2230hdB2330hdB2430hd euB2430hd australia

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