1. Manuals
  2. Brands
  3. Samsung Manuals
  4. LCD TV
  5. LW22A13W
  6. Service manual

Samsung LW22A13W Service Manual

Tft-lcd tv/monitor
Hide thumbs Also See for LW22A13W:
Table of Contents

Advertisement

Quick Links

See also: Service Manual
SERVICE
TFT-LCD TV/MONITOR
TFT-LCD TV/MONITOR
Chassis
Model
PD22EO
LW22A13W
Manual
7. Electrical Parts List
11. Panel Description
CONFIDENTIAL
CONTENTS

Advertisement

Table of Contents
loading

Related Manuals for Samsung LW22A13W

Summary of Contents for Samsung LW22A13W

  • Page 1: Table Of Contents

    CONFIDENTIAL TFT-LCD TV/MONITOR Chassis Model PD22EO LW22A13W SERVICE Manual TFT-LCD TV/MONITOR CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8. Block Diagram 9.

  • Page 2: Precautions

    A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. LW22A13W...

  • Page 3: Servicing Precautions

    Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from solder removal devices not classified as “anti-static” a carpeted floor can generate enough static can generate electrical charges sufficient to damage electricity to damage an ESD. ESDs. LW22A13W...

  • Page 4: Product Specifications

    – BASS Control Range : -12 dB~ + 12 dB – TREBLE Control Range : -12 dB~ + 12 dB – Headphone Out: 5mW max (400m Vrms) – Output Frequency : RF => 80 Hz ~ 15 kHz A/V => 80 Hz ~ 15 kHz LW22A13W...

  • Page 5: Pin Assignments

    Signal Assignment Pin No. Signal Assignment RX2- RX2+ RXC- RXC+ DDC Input Power(+5V) Analog Red Self laster Output Signal Connection Analog Green DDC Clock (SCL) RX0- DDC Data (SDA) Analog Blue RX0+ Analog Vertical Sync. Analog Horizontal Sync. RX1- RX1+ LW22A13W...
  • Page 6 F/B GND Red IN (700mV/75 ) RGB F/B (0~0, 4V/1~3V) Video Output GND Video Input GND CVBS Out (1V/75 ) CVBS IN (1V/75 ) Common GND 2-2-3 A/V RCA Yellow CVBS Audio L RCA White Audio R RCA Red LW22A13W...
  • Page 7 2-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. 2-3-1 LCD Panel Mode : 1 mode N/C : Non-Interlaced, I : Interlaced 44.769 17.186 16.086 74.841 LW22A13W...
  • Page 8 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (1) LW22A13W...
  • Page 9 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (2) LW22A13W...

  • Page 10: Disassembly & Reassembly

    CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LW22A13W monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly.
  • Page 11 3 Disassembly and Reassembly 4. Insert a screw driver into upper groove of stand fitting hole and lift up right & left side respectively. 5. Pull the cover rear 3-2 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures. LW22A13W...

  • Page 12: Alignment & Adjustments

    6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 7. To protect aganist shock hazard, use an isolation transformer. LW22A13W...
  • Page 13 4-2-1 Entering Factory Mode 1. To enter “Service Mode” Press the remote - control keys in this sequence : - If you do not have Factory remote - control - If you have Factory remote - control 4-2-2 Factory Mode Tree LW22A13W...
  • Page 14 CONFIDENTIAL 4 Alignments and Adjustments LW22A13W...
  • Page 15 CONFIDENTIAL 4 Alignments and Adjustments Memo LW22A13W...

  • Page 16: Troubleshooting

    C841? Change main assy. (BN94-00400A) Does proper DC +8V IC843 is bad. appear at C843? Change main assy. (BN94-00400A) Check a other function. (No picture part) A power is supplied to set. Replace a assy LCD panel. (BN91-00388L) LW22A13W...
  • Page 17 CONFIDENTIAL 5 Troubleshooting WAVEFORMS LW22A13W...
  • Page 18 Change main board assy. (BN94-00400A) Does the clock pulse appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W...
  • Page 19 CONFIDENTIAL 5 Troubleshooting WAVEFORMS LW22A13W...
  • Page 20 Change main board assy. (BN94-00400A) Does the clock appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W...
  • Page 21 CONFIDENTIAL 5 Troubleshooting WAVEFORMS LW22A13W...
  • Page 22 Change main board assy. (BN94-00400A) Does the clock appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W...
  • Page 23 CONFIDENTIAL 5 Troubleshooting WAVEFORMS LW22A13W...
  • Page 24 Change main board assy. (BN94-00400A) Does the clock pulse appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W...
  • Page 25 CONFIDENTIAL 5 Troubleshooting WAVEFORMS 5-10 LW22A13W...
  • Page 26 Change main board assy. (BN94-00400A) Does the clock pulse appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W 5-11...
  • Page 27 CONFIDENTIAL 5 Troubleshooting WAVEFORMS 5-12 LW22A13W...
  • Page 28 Change main board assy. (BN94-00400A) Does the clock pulse appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W 5-13...
  • Page 29 CONFIDENTIAL 5 Troubleshooting WAVEFORMS 5-14 LW22A13W...
  • Page 30 Change main board assy. (BN94-00400A) Does the clock pulse appear at IC300 or IC901 are bad. output of RA311~RA313? Change main board assy. (BN94-00400A) Check a LVDS cable. Replace a assy LCD panel. Please, call to Samsung Co, LTD. (BN91-00388L) LW22A13W 5-15...
  • Page 31 CONFIDENTIAL 5 Troubleshooting WAVEFORMS 5-16 LW22A13W...

  • Page 32: No Sound

    Power rugulator IC (ICP23) are bad. +12V_3 of IC919, IC501? Change main board assy. (BN94-00400A) Does the signal Sound IC (IC919 or IC501) are bad. appear at L501~L504? Change main board assy. (BN94-00400A) Replace the speaker assy BN96-00176A (R), BN96-00177A (L)? LW22A13W 5-17...
  • Page 33 CONFIDENTIAL 5 Troubleshooting WAVEFORMS 5-18 LW22A13W...
  • Page 34 CONFIDENTIAL 6 Exploded View and Parts List LW22A13W...

  • Page 35: Exploded View & Parts List

    CONFIDENTIAL 6 Exploded View & Parts List Memo LW22A13W...

  • Page 80: Block Diagram

    CONFIDENTIAL 8 Block Diagram 8-1 Main LW22A13W...
  • Page 81 CONFIDENTIAL 8 Block Diagrams 8-2 Power LW22A13W...

  • Page 82: Wiring Diagram

    CONFIDENTIAL 9 Wiring Diagram 9-1 Main PCB CNP1 CN104 ADJ_BRIGHT CN501(L) SW_INVERTER CN502(R) CN101 CN102 CN100 CN103 LW22A13W...
  • Page 83 +5V_A DVI_RX2- DVI_RXO- DVI_RX2+ CN204 CN206 +5V_A DVI_RXO+ TP129 VOL+ TP131 TP132 BUZZER TP134 PC_DDC_SCL PC_DDC_SDA VOL- DVI_RXC+ PC_VSYNC SOURCE DVI_RXC- DVI_RX1- MENU PC_BLUE DVI_RX1+ PC_HSYNC TP130 PC_GREEN TP133 PC_5V PC_RED IDENT_PC CN300 CN301 CN213 CN19 CN211 CN208 CN207 LW22A13W...

  • Page 84: Schematic Diagrams

    RESET_3230 high oprt’lly SUPLVAL RA27 1/16W Hsync_PC CB10 TP534 SUPLVAL RA28 1/16W 100nF from 9883 Csync_DTV CA20 TP682 RA21 RA22 CA21 47pF SUPLVAL 47pF DG01 check_CN102 TP680 1/16W 1/16W SUPLVAL SDA_DPTV TP679 SUPLVAL SCL_DPTV DG01 DG01 DG01 DG01 LW22A13W 10-1...

  • Page 85: Schematic Diagrams

    CONFIDENTIAL 10 Schematic Diagrams 10-2 LW22A13W...
  • Page 86 T217 R314 R316 RESET_DPTV T_VSYNC 1/16W 1/16W T_HSYNC T_BOUT R321 R325 R315 R326 T_GOUT 1/16W 1/16W 1/16W 1/16W DPTV#31 T_ROUT AGDP2 T_GND R244 1.5K DGDP 1/16W R243 4.7K 1/16W Q201 SW_70IRE KSC1623-Y FROM MUX AGDP1 (9883 OR 3230) LW22A13W 10-3...
  • Page 87 CONFIDENTIAL 10 Schematic Diagrams 10-4 LW22A13W...
  • Page 88 C572 C527 0.056nF C568 C574 0.01nF 0.01nF CONTR1 0.056nF 1/16W 1.5nF PCB: BN41-00229A SOUND MUTE C575 AGND_S 100uF AGND_S AGND_S AGND_S L541 C577 C576 SW_7050 47uF 47nF 3.9UH D545 RLZ8.2 TP501 AGND_S AGND_S AGND_S SCL2 SDA2 RESET_3451 SW_1101_MUTE LW22A13W 10-5...
  • Page 89 CONFIDENTIAL 10 Schematic Diagrams 10-6 LW22A13W...
  • Page 90 10 OHM CP60 SC2_R_OUT 1/16W CP54 CP55 CP56 CP57 CP59 CP58 TP674 SUPLVAL 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100uF 100uF TP676 SUPLVAL check_CN102 TP675 SUPLVAL DGND CP52 CP61 CP62 CP53 100nF 100nF 100nF 100nF DGND EUROPE ONLY LW22A13W 10-7...
  • Page 91 CONFIDENTIAL 10 Schematic Diagrams 10-8 LW22A13W...
  • Page 92 TP21 2SC2412K-Q LTST-C150GKT LED_GRN TP22 (+14V) LTST-C150GKT TP23 82uF 4.7K +5V_A 1/16W TP24 WOOFER_OUT TP25 LED1 OUTPUT CN213 746HF 1/16W 2SC2412K-Q 1/16W 82uF 82uF 82uF LED_RED POWER_JACK9P 100uF 4.7K 1/16W JACK3P CN207 WOOFER_OUT ZD29 RLZ8.2 100pF ZD30 RLZ8.2 LW22A13W 10-9...
  • Page 93 CONFIDENTIAL 10 Schematic Diagrams 10-10 LW22A13W...
  • Page 94 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Printed in Korea P/N : BN82-00084C-00...

Table of Contents