Samsung LTM225W Specifications

TFT-LCD TV/MONITORChassis ModelPD22UO LTM225WManualSERVICETFT-LCD TV/MONITOR CONTENTS1. Precautions2. Product Specifications3. Disassembly & Reass

LTM225W 3-1CONFIDENTIAL3 Disassembly and ReassemblyThis section of the service manual describes the disassembly and reassembly procedures for theLTM22

CONFIDENTIAL3 Disassembly and Reassembly3-2 LTM225W3-2 ReassemblyReassembly procedures are in the reverse order of disassembly procedures.4. Insert a

CONFIDENTIALLTM225W 4-14 Alignments and Adjustments4-1 General Alignment Instuction1. Usually, a color TV-VCR needs only slight touch-up adjustment up

4 Alignments and Adjustments4-2 LTM225WCONFIDENTIAL4-2 Factory Mode Adjustments4-2-1 Entering Factory Mode1. To enter “Service Mode” Press the remote

4 Alignments and AdjustmentsLTM225W 4-3CONFIDENTIAL

Memo4 Alignments and Adjustments4-4 LTM225WCONFIDENTIAL

CONFIDENTIALLTM225W 5-15 Troubleshooting5-1 No PowerDoes proper DC 14V appear at Pin 1 of CN923?Check SMPS’s part and adapter.YesNoNoNoNoNoNoNoNoNoIC8

5 Troubleshooting5-2 LTM225WCONFIDENTIALWAVEFORMS1-8 1-91-101-2 1-31-41-11-5 1-61-7

5 TroubleshootingLTM225W 5-3CONFIDENTIAL5-2 No Video (PC Signal)Power indicator is green.YesReplace the LCD_Panel with new one.YesNoCheck CN714 and FF

5 Troubleshooting5-4 LTM225WCONFIDENTIALWAVEFORMS2-1 2-22-4 2-52-102-92-72-82-62-3

1-1-1 Warnings1. For continued safety, do not attempt to modify thecircuit board.2. Disconnect the AC power and DC Power Jackbefore servicing.1-1-2

CONFIDENTIAL5 TroubleshootingLTM225W 5-5Replace the LCD_Panel with new one.5-3 No Picture (Tuner CVBS, AV CVBS, S-Video)NoCheck CN712 and FFC(3809-001

5 Troubleshooting5-6 LTM225WCONFIDENTIALWAVEFORMS3-33-43-5 3-63-73-8 3-93-11 3-123-103-143-133-23-1

5 TroubleshootingLTM225W 5-7CONFIDENTIALReplace the LCD_Panel with new one.5-4 No Picture (DVD, DTV)NoNoNoCheck CN713 and FFC(3809-001406) cable.Check

5 Troubleshooting5-8 LTM225WCONFIDENTIALWAVEFORMS4-1 4-2 4-34-4 4-5 4-64-7 4-8 4-94-10 4-11 4-124-13 4-14

5 TroubleshootingLTM225W 5-9CONFIDENTIAL5-5 No SoundNoCheck CN714 and FFC(BN41-00240A) cable.Check CN715 and FFC(3809-001407) cable.Does the signal ap

5 Troubleshooting5-10 LTM225WCONFIDENTIALWAVEFORMS5-1 5-2 5-3

CONFIDENTIALLTM225W 6-16 Exploded View and Parts List

Memo6 Exploded View & Parts List6-2 LTM225WCONFIDENTIAL

CONFIDENTIALCN712_WIRE 3809-001406 CABLE-FLAT 30V,80C,65MM,30P,1MM,UL2896CN713_WIRE 3809-001406 CABLE-FLAT 30V,80C,65MM,30P,1MM,UL2896CN714_WIRE BN41-

C247 2402-001042 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mmC248 2203-000236 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1608C249 2203-005005 C-CERAMIC,CHIP 100

1-2-1 General Servicing Precautions1. Always unplug the unit’s AC power cord from theAC power source and disconnect the DC PowerJack before attemptin

C316 2203-000815 C-CERAMIC,CHIP 0.033nF,5%,50V,NP0,TP,1608C317 2203-000815 C-CERAMIC,CHIP 0.033nF,5%,50V,NP0,TP,1608C318 2203-005005 C-CERAMIC,CHIP 10

C342 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608C343 2402-000108 C-AL,SMD 10uF,20%,16V,WT,TP,4.3x4.3x5.4C344 2203-005005 C-CERAMIC,CHIP 100nF

C409 2203-000236 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1608C410 2203-000236 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1608C411 2402-000135 C-AL,SMD 22uF,20%,16V

C509 2203-005015 C-CERAMIC,CHIP 150nF,+80-20%,16V,Y5V,TP,1608C510 2203-005015 C-CERAMIC,CHIP 150nF,+80-20%,16V,Y5V,TP,1608C511 2203-005015 C-CERAMIC,C

C565 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C566 2402-000176 C-AL,SMD 10uF,20%,16V,GP,TP,4.3x4.3x5.4C567 2203-001077 C-CERAMIC,CHIP

C723 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C724 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C725 2203-000189 C-CERAMIC

C863 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C864 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C865 2409-001029 C-ORGANIC 120uF

C9645 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C9646 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C9647 2203-000189 C-CERA

C9698 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C9699 2203-000189 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608,C9700 2203-000189 C-CERAMIC,CH

D502 0403-001435 DIODE-ZENER QZX363C5V6,5.32-5.88,200MW,SOT-363,TPD543 0403-001052 DIODE-ZENER RD8.2MB,8.2V,7.7-8.64V,200mW,SD545 0403-001052 DIODE-ZE

CONFIDENTIAL2 Product Specifications2-1 SpecificationsLCD Panel TFT-LCD panel, RGB vertical stripe, normally Black, 22-Inch viewable, 0.381 mm pixel p

IC712 1001-001190 IC-ANALOG SWITCHFST16233MTD,BUS SWITCH,TSSOP,56P,240MIL,-,5.5V,-40TO+85C,PLASTIC,-,20OHM,8.5NS,7IC722 1001-001177 IC-VIDEO SWITCHTEA

Q01 0501-000342 TR-SMALL SIGNAL KSC1623-Y,NPN,200mW,SOT-23,TP,135-270Q404 0504-000152 TR-DIGITAL KSR2101,PNP,200mW,4.7K/4.7K,SOT-23,TPQ501 0501-000342

R301 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608R302 2007-000084 R-CHIP 4.7Kohm,5%,1/16W,DA,TP,1608R303 2007-000070 R-CHIP 0ohm,5%,1/16W,DA,TP,1608R

R442 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608R457 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608R4579 2007-001198 R-CHIP 820OHM,1%,1/10W,DA,TP,201

R4647 2007-000080 R-CHIP 2Kohm,5%,1/16W,DA,TP,1608R4648 2007-000052 R-CHIP 10Kohm,1%,1/16W,DA,TP,1608R4649 2007-000052 R-CHIP 10Kohm,1%,1/16W,DA,TP,16

R553 2007-000078 R-CHIP 1Kohm,5%,1/16W,DA,TP,1608R554 2007-000078 R-CHIP 1Kohm,5%,1/16W,DA,TP,1608R580 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608R5

R657 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608R658 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608R659 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608

R757_SIL161B 2007-000070 R-CHIP 0ohm,5%,1/16W,DA,TP,1608R805 2007-008433 R-CHIP 0.33OHM,1%,1W,DA,TP,6432R806 2007-000219 R-CHIP 1.2Kohm,1%,1/16W,DA,TP

RA739 2011-001001 R-NETWORK 0ohm,5%,63mW,L,CHIP,8P,TPRA742 2011-001001 R-NETWORK 0ohm,5%,63mW,L,CHIP,8P,TPRA743 2011-001001 R-NETWORK 0ohm,5%,63mW,L,C

- BN90-00304D ASSY COVER FRONT PD22UOC/F BN64-00111A KNOB-POWER POSEIDON22,ABS + PC IV16,IV16C/F BN96-00128C ASSY COVER P-FRONT PD22UO,ABS VO,GR81C/F

CONFIDENTIAL2 Product Specifications2-2 LTM225W2-2 Pin Assignments2-2-1 DVI-I (Analog & Digital)(Ref) DVI-D : Digital onlyD-SUB : Analog onlyPin N

8 Block Diagram8-1 Block DiagramLTM225W 8-1CONFIDENTIAL

8 Block Diagrams8-2 LTM225WCONFIDENTIAL8-2 Power Stage Block Diagram

CONFIDENTIALLTM225W 9-1CN924CN923CN712CN_DPTV_CONTROL(For engineer's reference only)CN01GYCGNDRXO-RXO+GNDRX1-RX1+GNDRX2-RX2+GNDRX3-RX3+GNDRXC-123

9-2 Input9 Wiring Diagrams9-2 LTM225WCONFIDENTIALCN16 CN18CN5CN4CN3GNDPC_RPC_LPC_RPC_LGNDNC1234567GNDHP_OUT_RHP_OUT_LHP_OUT_RHP_OUT_LGNDHP_IDENT123456

CONFIDENTIALLTM225W 10-1BLUEGREENMCA(10) (90)YDPTV : HIGHSDA2DDC_SCLE2-ROMCrPRINTER:dps_c4_1dofdofEMU#87 ALECN921GREENPr(DPTV)PRINTER:dps_c4_2CN713OPE

10 Schematic Diagrams10-2 LTM225WCONFIDENTIAL2-1 2-2 2-3 2-4 2-54-1 4-2 4-3 4-4 4-54-6 4-7 4-8 4-9

LTM225W 10-310 Schematic DiagramsCONFIDENTIAL10-2 Schematic Diagram PIN3.3V94PINOPTION(VS HS DCLK)PIN172DPTV_3D_PROPIN1406868 Ohm Netwok ResistorPIN 1

10 Schematic Diagrams10-4 LTM225WCONFIDENTIAL2-8 2-9 2-10 3-5 3-63-7 3-8 3-93-124-143-13 3-143-10 3-114-12 4-13

LTM225W 10-510 Schematic DiagramsCONFIDENTIAL10-3 Schematic DiagramFROM ADAPTERTO PANEL INVERTER+OFF : HIGH100uHSIFEMI+STAND-BY POWERSTAND-BY POWERPC

10 Schematic Diagrams10-6 LTM225WCONFIDENTIAL1-1 1-2 1-3 1-4 1-51-6 1-75-2 5-31-8 1-9 1-10

2 Product SpecificationsLTM225W 2-3CONFIDENTIALPinSeparate12345GNDYCGNDGNDRCA GreenRCA BlueRCA RedRCA WhiteRCA RedYGNDPb (Cb)GNDPr (Cr)GNDAudio LGNDAu

LTM225W 10-710 Schematic DiagramsCONFIDENTIAL10-4 Schematic Diagram22_OHM22_OHMOPTIONFrom ComponentToDPTVFrom Micom22_OHM0_OHMFrom Micom0_OHMToScalerO

10 Schematic Diagrams10-8 LTM225WCONFIDENTIAL2-6 2-7 3-1 3-24-10 4-113-35-13-4

LTM225W 10-910 Schematic DiagramsCONFIDENTIAL10-5 Schematic DiagramNT_KO_USA_ANGLE_TYPE_TUNER CODE NO:BN40-00018AS_Video InputCN15MAIN PCB BOARDINPUT

10 Schematic Diagrams10-10 LTM225WCONFIDENTIALMemo

Samsung Electronics Co.,Ltd.416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea.Printed in KoreaP/N : BN82-00084A-00http://www.samsungsupport.

2 Product Specifications2-4 LTM225WCONFIDENTIAL2-3 Timing ChartThis section of the service manual describes the timing that the computer industry reco

2 Product SpecificationsLTM225W 2-5CONFIDENTIALµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµs2-3-2 Supported Modes (

2 Product Specifications2-6 LTM225WCONFIDENTIALµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµsµs2-3-2 Supported Modes (