Service LC3050 / Manual LCD TV TABLE OF CONTENTS SECTION PAGE PRODUCT SPEC........................1 SAFETY PRECAUTIONS ......................2 SERVICING PRECAUTIONS ...................... 3 DISASSEMBLY PROCEDURE ....................4 PARTS LIST ..........................10 MECHANICAL EXPLODED VIEW ....................11 TROUBLE SHOOTING ......................12 WIRE DRESSING ........................
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MARANTZ Parts for your equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
Note: In some cases a signal on the LCD TV may not be displayed properly. The problem may be an inconsistency with standards from the source equipment (DVD, Set-top box, etc...). If you do experience such a problem please contact Marantz Service Center, Inc. and also the manufacturer of the source equipment.
SAFETY PRECAUTIONS !! Import ant Safety Notice !! Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.
SERVICING PRECAUTIONS CAUTION! ! Before servicing receivers covered by this service manual, read and follow the SAFETY PRECAUTIONS on page 2 of this publication. General Servicing Precautions 1.Always unplug the receiver AC power cord from AC power source before; Removing or reinstalling any component, circuit board module or any other receiver assembly. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.
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DISASSEMBLY PROCEDURE 2).Metal plate & Rear chassis Remove Removal of rear metal chassis... Remove 2. Slide away the metal plate Removal of Terminal metal plate SERVICE MANUAL PAGE:5...
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DISASSEMBLY PROCEDURE 3).Main PWB & Connectors Remove 4 Main CB screws Remove 4 Main CB screws Removal of Main P C ... Removal of Main P C ... Remove Remove Removal of Main PCB Removal of Main PCB SERVICE MANUAL PAGE:6...
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DISASSEMBLY PROCEDURE 4).LCD Panel chassis Remove 8 screws, then take off sub-metal Removal of LCD Module sub -bracket Remove 8 screws, then take off two vertical mountmetal brackets Removal of LCD Module vertical brackets SERVICE MANUAL PAGE:7...
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DISASSEMBLY PROCEDURE 5-1). LCD Moul Remove18 screw Removal of LCD Module brackets Remove 4 brackets, then lift out LCD Module (move all wire looms away which are attached to the module) Removal of LCD Panel module mounting brackets SERVICE MANUAL PAGE:8...
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DISASSEMBLY PROCEDURE 5-2).LCD Module Front mask remains after removing LCD Module SERVICE MANUAL PAGE:9...
90M47AW809030 CUSHION CUSHION BOTTOM L 310-010E 90M47AW809040 CUSHION CUSHION BOTTOM R 310-010F NOTE : “nsp” PARTS IS LISTED FOR REFERENCE ONLY, MARANTZ WILL NOT SUPPLY THESE PARTS. ELECTRICAL PA RTS LIST VERS. PART NO. PART NO. PARTS NAME DISCRIPT POS. NO.
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TROUBLE SHOOTING Check IC601 Check CVBS Signal Pin#21 from Pin #67 of IC201 (CVBS Sibnal) to Pin #21 of IC101 Check Pin #57 ~ 60 of IC 101 Replace IC01 (R,G,B FB) Check Pin #67,70,72 Check RF Source gain 73 of IC201 (R,G,B FB) SERVICE MANUAL PAGE:15...
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TROUBLE SHOOTING DC Reg Check In/Out Power Line IC271,272,821 Check & Replacement In/Out Voltage IC201 Each and all Check v ideo Input Check AL201~206& Pin #78,80,82= AL208~210 Component IC201 Video Data out 96=RF CVBS 98=A/V 100,102=Y/C IC301 Each and all Check Input Signals Check AL301~306...
WIRE DRESSING Wire Dressing Note : Using Acetate Tape No1, No3, No4, No5. Using Copper Tape No2, No6 (Conducted tape) SERVICE MANUAL PAGE:17...
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WIRE DRESSING 1) Wire Dressing for Left speaker & woofer speaker. ( No.1) 2) Wire Dressing for Right speaker & Woofer speaker. ( No.2 ) 3) Wire Dressing for Key control & Power Indicator with IR receiver ( No.3 ) SERVICE MANUAL PAGE:18...
ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 1.SVC mode data Adjustment NOTE!! When the EEPROM has been replaced, the SVC data should be restored as the function of individual system and specification. [ Enter and exit SVC mode ] Note: into the SVC mode, Initialize with default data. 1) Press 5 Seconds MENU buttons on both TV set and Remote Controller at the same time to get into SVC mode.
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ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2-2.SVC Data Table Initialize Factory with PAGE ITEM REMARK outgoing default setting data Not apply to DUAL option DUAL Apply to DUAL option Not apply to MONO option MONO Apply to MONO option Not apply to NICAM STEREO option A2 ST Apply to NICAM STEREO option Sound curve option 1...
RESERVED RESERVED DATA 5 RESERVED RESERVED NEC-A Save NEC- A TV Channel Marantz Save Marantz TV Channel L-Model Save L- Model TV Channel E-Model Save E-Model TV Chann el M-Model Save M-Model TV Chann el KOREA Save KOREA TV Channel...
WAVE FORM NOTE!!: You can find number from Schematic Diagram 1)IC101 PIN27 - MCKA 2)IC801 PIN26 - MCLK 3)IC101 PIN 24 - MCKE 4) )IC101 PIN 23 - MCAS 5) IC101 PIN 380 - LCLKA 6) ) IC101 PIN 378 - LCLKA SERVICE MANUAL PAGE:30...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 7) IC101 PIN 369 – B signal OUT 8) IC101 PIN 346 – G signal OUT 9) IC101 PIN 327 - LDTG 10)IC101 PIN 326 H- sync 11) IC101 PIN 328 R signal out 12)IC 101 pin 301 V-sync SERVICE MANUAL PAGE:31...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 13) IC 201 pin 73 TELETEXT B signal input 14) IC 201 pin 72 TELETEXT G signal input 15) IC 201 pin 73 TELETEXT R signal.input 16) IC 201 pin 67 TELETEXT FB signal input 17) IC201 pin 54 R signal output 18) IC 201 pin 51 clock output SERVICE MANUAL...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 19) IC201 pin 39 V-output 20) IC201 pin 33 pin 32 H-output H-output 21)IC201 pin 32 H-output 22) IC201 pin 25 G -signal Output 23) IC201 pin 132 B-signal Output 24)IC201 S-Video C signal input SERVICE MANUAL PAGE:33...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 25)IC201 S-Video Y signal input 26)IC201 pin 82 Component U - signal input 27) IC201 pin 80 Component Y - signal input 28) IC201 pin 78 Component V - signal input 29) IC601 pin 67 SIF signal input 30) IC601 pin 56&57 AV1 sound input(video) SERVICE MANUAL...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 32) IC601 pin 47&48 sound input ( PC ) 31) IC601 pin 50&51 sound input(phone -2P) ( XGA 1024*768@60HZ ) 33)IC601 pin 28 L -sound output 34) IC601 pin 27 R- sound output 35)IC691 pin 3 HEAD_PHONE L -sound output 36)IC691 pin 1 HEAD_PHONE R -sound output SERVICE MANUAL...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 37)IC651& 652 pin 8 MUTE 38)IC301 5V (VCC) 39) IC301 RX0+ signal 40) IC301 RX2+ signal ( XGA 1024*768@60HZ ) ( XGA 1024*768@60HZ ). 41) ) IC301 pin 85 data clock 42) IC301 pin 86 Disenable ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ)
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 43) IC301 pin 87 V - sync output 44) IC301 pin 88 H - sync output ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ) 45) IC301 pin 89 SOG sync output 46) IC301 pin 99 R signal ouput ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ) 47) IC301 pin 10 G signal ouput...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 49) IC01 pin 11 SDA clock output 50) ) IC01 pin 11 SCL clock output 51) IC171 pin 2 data input. 52) IC172 pin 2 data input. 53) IC402 pin 37 ARD output 54) IC402 pin 41 ARC output SERVICE MANUAL PAGE:38...
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 55) P1014 pin 2 MXCS clock 56) P1014 pin 3 MXDA clock 58) P901 pin 1 R signal input 57) P1014 pin 4 MXCL clock ( XGA 1024*768@60HZ) 60) P901 pin 3 B signal input 59 P901 pin 2 G signal input ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ)
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WAVE FORM NOTE!!: You can find number from Schematic Diagram 61) P901 pin 13 H-sync input 62) P901 pin 14 V-sync input ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ) 63) P1002 Component Y signal input 64) P1002 Component U signal input 65) P1002 Component V signal input 66)P1004 pin 10 CVBS TV signal input SERVICE MANUAL...
FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. 1, PART LIST ( Assemble process ) POS.NO. PART NO PART NAME DESCRIPTION Q,TY 300-003G 30 BOX BOX, ACCESSORY 300-003K 30 BOX pad BOX, ACCESSORY 320-005A CASIO MANUAL...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY CON02P200AOU 30.1 SPK,2P 700MMH/- LEAD ASSY CON03P200AOY 301 SPK,3P 900MM H/- LEAD ASSY CON04P200AOU 301 SPK,4P 700MM H/- LEAD ASSY...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY AL201 0RYSS330FJTS 33 OHM, 3216 RESISTOR, ARRAY CHIP AL202 0RYSS330FJTS 33 OHM, 3216 RESISTOR, ARRAY CHIP AL203 0RYSS330FJTS 33 OHM, 3216...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C1042 0CHSS102DKTS 1000PF,1608 CAPACITOR, CHIP C1048 0CASH2R2HMTS 2.2UF 50V CAPACITOR,CAN C1049 0RHSS000DJTS 0 OHM, 1608 J RESISTOR, CHIP C105 0CHSS104DZTS 0.1UF,1608...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C138 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP C139 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP 0CHSS330DJTS 33PF,1608 CAPACITOR, CHIP C140 0CHSS150DJTS 15PF,1608 CAPACITOR, CHIP C141...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C2002 0CASH471AMTS 470UF 10V CAPACITOR,CAN C2003 0CHSS102DKTS 1000PF,1608 CAPACITOR, CHIP C201 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP C202 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY 0CASH100CMTS 10UF 16V CAPACITOR,CAN C263 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP C271 0CASH101AMTS 100UF 10V CAPACITOR,CAN C272 0CASH101AMTS...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C425 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP C426 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP C427 0CASH100CMTS 10UF 16V CAPACITOR,CAN C429 0CASH100CMTS 10UF 16V CAPACITOR,CAN...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C644 0CASH100HMTS 10UF 50V CAPACITOR,CAN C645 0CHSS102DKTS 1000PF,1608 CAPACITOR, CHIP C646 0CHSS102DKTS 1000PF,1608 CAPACITOR, CHIP C649 0CHSS560DJTS 56PF,1608 CAPACITOR, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C734 0CHSS473DKTS 0.047UF,1608 CAPACITOR, CHIP C735 0CHSS473DKTS 0.047UF,1608 CAPACITOR, CHIP C736 0CHSS473DKTS 0.047UF,1608 CAPACITOR, CHIP C737 0CHSS473DKTS 0.047UF,1608 CAPACITOR, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY D831 1DHSTYW020TS SMBYW02-200 DIODE, CHIP D832 1DHSTYW020TS SMBYW02-200 DIODE, CHIP D833 1DHSTYW020TS SMBYW02-200 DIODE, CHIP D834 1DHSTYW020TS SMBYW02-200 DIODE, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY IC652 498-001A Silicon Grease IC685 1ICSTVN02NBD VN02N, Vertical IC, SOLID STATE RELA IC691 1ICST2822MBD H/P SOUND AMP IC, SOUND AMP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY L108 0LBSS601FJTS 600 OHM, 3216 BEAD, CHIP L109 0LBSS601FJTS 600 OHM, 3216 BEAD, CHIP L110 0LBSS601FJTS 600 OHM, 3216 BEAD, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY L803 0LRSM10100BD 100UH, SMC H100 INDUCTOR L804 0LBSS3580RTR BFD-3580 R2F BEAD CORE, RADIAL L804 0LBSS601FJTS 600 OHM, 3216 BEAD, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY Q951 0TRKE3875STS KTC3875S TRANSISTOR, CHIP 0RHSS470DJTS 47 OHM, 1608 J RESISTOR, CHIP 0RHSS332DJTS 3.3K OHM, 1608 J RESISTOR, CHIP R1001...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY R115 0RHSS000DJTS 0 OHM, 1608 J RESISTOR, CHIP R1151 0RHSS470DJTS 47 OHM, 1608 J RESISTOR, CHIP R1152 0RHSS470DJTS 47 OHM, 1608 J...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY R307 0RHSS470DJTS 47 OHM, 1608 J RESISTOR, CHIP R308 0RHSS470DJTS 47 OHM, 1608 J RESISTOR, CHIP R309 0RHSS472DJTS 4.7K OHM, 1608 J...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY 0RHSS101DJTS 100 OHM, 1608 J RESISTOR, CHIP 0RHSS101DJTS 100 OHM, 1608 J RESISTOR, CHIP 0RHSS470DJTS 47 OHM, 1608 J RESISTOR, CHIP...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY R664 0RHSS561DJTS 560 OHM, 1608 J RESISTOR, CHIP R665 0RHSS472DJTS 4.7K OHM, 1608 J RESISTOR, CHIP R666 0RHSS472DJTS 4.7K OHM, 1608 J...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY R901 0RHSS101DJTS 100 OHM, 1608 J RESISTOR, CHIP R902 0RHSS000DJTS 0 OHM, 1608 J RESISTOR, CHIP R904 0RHSS470DJTS 47 OHM, 1608 J...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. 4, PART LIST (CONTROL & LED PCB ) - AYCOLT32A01B POS.NO. PART NO PART NAME DESCRIPTIONS Q,TY C3001 0CHSS101DJTS 100PF,1608 CAPACITOR, CHIP LD3001 0DLSYRG138AD RED, SL RG138...
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FACTORY SPARE PARTSLIST These are reference only, MARANTZ will not supply these parts. 6, PART LIST (FRONT PANAL ASSY) - AYCALT32A01K POS.NO. PART NO PART NAME DESCRIPTION Q,TY 400-011U 30", M-TOOL,BK COVER, FRONT 450-002G 30",M,FRONT,AL Aluminum,TOP 450-002H 30",M,FRONT,AL Aluminum,BOTTOM 501-016Z...