LG RM-15LA66K Service Manual Download Page 18 | Manualshive

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No Raster on AV Signal
(Video, S-Video)

No Raster on TV(RF) signal

Change L1209, L1210,
L1212

Check the signal of

L1209, L1210, L1212

Repeat

[A] Process

Check the output of

TU1000

Check the input/output

of IC1

Check the input/output

of IC800, IC851

Check input source cable and jack

Fail

Fail

Fail

Fail

Re-soldering or
Change the defect part
Chek X11

Fail

Re-soldering or
Change the defect part

Check 5V, 33V of TU1000
Re-soldering or
Change the defect part

Pass

Pass

Pass

Check the input/output

of IC901

Fail

Re-soldering or
Change the defect part
Check X900

Pass

Pass

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Summary of Contents for RM-15LA66K

Page 1: ...TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041B MODEL RM 15LA66K website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 TIMING CHART 11 ADJUSTMENT INSTRUCTION 12 TROUBLE SHOOTING 15 BLOCK DIAGRAM 20 WIRING DIAGRAM 22 EXPLODED VIEW 23 EXPLODED VIEW PARTS LIST 24 REPLACEMENT PARTS LIST 25 SVC SHEET ...

Page 3: ...t such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in...

Page 4: ...vely obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a ground...

Page 5: ...not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit boa...

Page 6: ...Depth Size mm Surface Treatment Operating Mode Back light Unit R T Typ Maker Type ActiveDisplay Area Pixel Pitch mm Electrical Interface Color Depth Size mm Surface Treatment Operating Mode Back light Unit R T Typ LPL TFT Color LCD Module 15 0 inches 380 16mm diagonal Aspect 4 3 0 297mm H x0 297mm V xRGB LVDS 6BIT WITH FRC 16 777 216 colors 332 8 H x262 2 V x18 D Anti Glare HAZE 3 Hard Coating 3H ...

Page 7: ... NO BG DK BG I LL BG DK BG I LL X X O X O X X X X O O X X Item Specification Remark No Top option PAL NTSC Rear option NT Rear Rear option NT Rear option EU D sub 15 pin Rear option Commercial 5 Optical Character Item Remark Specification Viewing Angle CR 10 Luminance Contrast Ratio CIE Color Coordinates Typical MAX MIN ALL white All back Min Typ 0 03 Max Typ 0 03 R L U D Luminance cd Variation LP...

Page 8: ...CAM BG 2 PAL SECAM DK 3 PAL I I 4 SECAM L L 5 NTSC M 6 PAL N M 7 NTSC M VHF E2 E12 UHF E21 E69 CATV S1 S20 HYPER S21 S41 L L B C D VHF 2 13 UHF 14 69 CATV 1 125 VHF Low 1 M10 VHF High 4 S22 UHF S23 62 AC 100 240V 50Hz 60HZ FVS 100 program FS 1 Temp 0 40 deg 2 Humidity 85 3 Temp 20 60 deg 4 Humidity 85 Item Specification Remark No EU Non EU RZ RT PAL Market 7 NTSC Area RM PAL FRANCE NTSC JAPAN PAL ...

Page 9: ...it Remark 1 2 3 4 5 Power Supply Normal Stand By Suspend Mode DPM Off Mode Cut off Switch off ITEM D SUB Pin Configuraion Control Function Y Pb Pr D4 Jack 525i 525p 750p 1125i H V Sync On On Off On On Off Off Off Spectification 1 RED 3 Blue 5 S T GND 7 Green GND 9 N C 11 ID0 GND 13 H Sync 15 SCL 1 Contrast Brightness 2 H Position V Position 3 Tracking Clock Phase 4 Auto Configure RESET 1 Y 3 Pb 5 ...

Page 10: ...EMOCON Working Sensitivity Straight REMOCON Working Sensitivity T B L R Closed Caption Sensitivity Teletext Sensitivity 0 1 0 1 85 10 9 70 70 dBm m m dBm dBm LGE Specification 30 degree NTSC ONLY Item Min Typ Max Unit Remark Mode H_display V_display V frequency H_total H_blanking H_sync H Polarity H_bp H_fp H freq kHz Clk MHz V_total V_blanking V_sync V Polarity V_bp V_fp VGA 60 640 480 60 800 160...

Page 11: ... 480 1 3 16 H 31 469 900 720 18 108 54 V 70 082 449 400 13 2 34 H 37 879 1056 800 40 128 88 V 60 317 628 600 1 4 23 H 46 875 1056 800 16 80 160 V 75 0 625 600 1 3 21 H 48 363 1344 1024 24 136 160 V 60 004 806 768 3 6 21 Mode H V Sort 1 2 3 4 5 6 7 25 175 28 324 25 175 31 5 40 0 49 5 65 0 640x350 640x480 800x600 720x400 800x600 800x600 1024x768 Sync Polarity Frequency Dot Clock Total Period E Video...

Page 12: ...n menu Once the adjustment is completed press the Enter Key to save and finish the adjustment 2 2 3 PC Mode adjustment 2 2 3 1 Adjustment preparation Conduct Heat Run at the RF fog signals for more than 30 minutes Connect the Pattern Generator to 15 Pin D Sub Jack of LCD TV 2 2 3 2 Auto Gain Offset adjustment Convert the input mode to PC input Using the Pattern Generator 801GF VG819 adjust WXGA 12...

Page 13: ...On 0 Top Off 1 Top On 0 Ch Sound Non Memory 1 Ch Sound Memory 0 except below area Off 1 Middle east Area Vol On 0 except below area Off 1 China Australia On Option 1 Option 2 NO ITEM CONDITION REMARK 1 2 3 4 Language Txt Lang Inch opt DDCi 1 0 0 Analog 0 Eng Only 1 EU5 2 12 nations Europe 3 Eng Chines 4 Eng Arab Urdu 5 Eng FARSI 0 WEST EU 1 EAST EU 1 2 TURKY EU 3 EAST EU 2 4 CYRILLIC 1 5 CYRILLIC ...

Page 14: ...k the front AV To move channel up down or to select a function displayed on the screen To adjust the volume or accurately control a specific function To set a specific function or complete setting To move the channel down in the PIP screen To use as a red key in the teletext mode To move the channel in the PIP screen To use as a green key in the teletext mode To switch between the main and sub scr...

Page 15: ...ck short of main B D or Change Lips Change IC1107 IC1104 Change LED Assy Check 15V or 5V of Lips Check Output of IC1107 IC104 Check LED Assy Check P1100 P210 Connector Fail Fail Change Q1100 Check Output of Q1100 Fail Pass Fail Pass Pass Pass A Process ...

Page 16: ...Check inverter Connector or inverter Check input source cable and jack Repeat A PROCESS Fail Change L900 L901 L902 L903 Fail Change IC901 Fail Change inverter connector or inverter Fail Change panel link cable or module Fail Change module Fail Check panel link Cable or module Pass Pass Pass Pass B Process ...

Page 17: ...ss Check the input output of IC1 Check the input output of IC901 Check input source cable and jack Fail Re soldering or Change the defect part Check X11 Fail Re soldering or Change the defect part Check X900 Fail Pass Pass Pass Check the input output of IC800 IC851 Re soldering or Change the defect part Fail Pass ...

Page 18: ...the input output of IC1 Check the input output of IC800 IC851 Check input source cable and jack Fail Fail Fail Fail Re soldering or Change the defect part Chek X11 Fail Re soldering or Change the defect part Check 5V 33V of TU1000 Re soldering or Change the defect part Pass Pass Pass Check the input output of IC901 Fail Re soldering or Change the defect part Check X900 Pass Pass ...

Page 19: ...ut Check the input source Fail Pass Re soldering or Change the defect part Check X11 Check the input output of IC1 Fail Pass Re soldering or Change the defect part Check the input output of IC100 IC101 Fail Pass Change speaker Check the speaker Fail Pass ...

Page 20: ...IC851 LA7222 IC2 TC90A65F IC500 14066 IC202 D SUB AT24C16 IC4 DIGITAL SIGNAL SOUND INPUT IF INPUT ANALOG SIGNAL SOUND OUTPUT ML 041B Block Diagram POWER IF PC SIDE_AV L R SIDE_L R PC L R L R AUDIO S A W Z1000 SCART V L R S VHS H P V SCART R G B SIDE V Y P b P r RGB OUT TTL 1 OUT TTL 2 OUT LVDS 1 O UT PC RGB COMPONENT ...

Page 21: ...ent to the LCD module as a TTL output VCTi is the main microprocessor that handles video signal processing and sound signal processing It also manages the RF signals received from the tuner The scaler can control timing to fit into the LCD panel and can also control the size and position of the input signal 2 Power Supply Unit The power supply unit provides 15V and 5V DC power to the mainboard The...

Page 22: ...R LOCAL KEY IR_LED 1 4 5 3 9 2 6 8 7 WIRING DIAGRAM No Part No 1 2 3 4 5 6 7 8 9 Wiring Part List 6631T25019Y 6631T11012R 6631T20028G 6631T20029X 6631T25021A 6620K00007C or 6620K00007A 6631T11017N 6631T25019L 6631V00040A ...

Page 23: ... 23 EXPLODED VIEW 010 050 050 080 090 100 120 130 150 170 160 200 180 210 220 230 180 190 140 110 060 070 020 030 040 ...

Page 24: ...Y 4951TKS168B METAL ASSEMBLY FRAME MAIN C SKD 15LA66 70 LPL MODULE ONLY 4810V00950B BRACKET AV RZ 20LA62 ML024A HIPS 60HR 3313TN1008A MAIN TOTAL ASSEMBLY RM 15LA70 LPL BRAND ML 041B 6871TPT281E PWB PCB ASSEMBLY POWER AUTOBAHN 15 LPL CMO HYDIS L173SAB MFM LPL POWER TOTAL SPI LIPS or 6871TPT281A PWB PCB ASSEMBLY POWER RZ 15LA70 POWER TOTAL POWERNET LIPS FOR CMO LPL HD 4950TKS300B METAL SHIELD 15LA66...

Page 25: ... SPECIFICATION C928 0CH3104K946 100000PF 50V Z F 2012 R TP C929 0CH3104K946 100000PF 50V Z F 2012 R TP C930 0CH3104K946 100000PF 50V Z F 2012 R TP C934 0CH3104K946 100000PF 50V Z F 2012 R TP C935 0CH3104K946 100000PF 50V Z F 2012 R TP C936 0CH3104K946 100000PF 50V Z F 2012 R TP C937 0CH3104K946 100000PF 50V Z F 2012 R TP C938 0CH3104K946 100000PF 50V Z F 2012 R TP C939 0CH3104K946 100000PF 50V Z F...

Page 26: ...X7R C961 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C1015 0CH5390K416 39PF 50V 5 NP0 2012 R TP C1016 0CH5390K416 39PF 50V 5 NP0 2012 R TP C121 0CC100CK41A 10PF 1608 50V 5 R TP NP0 DATE 2005 01 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C122 0CC100CK41A 10PF 1608 50V 5 R TP NP0 C43 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C47 0CC220CK41A 22PF 1608 50V 5 R TP NP0 C48 0CC220CK41A 22PF 1608 50V 5 R TP...

Page 27: ...3216 501 CERATEC 3216MM L900 6210TCE001G HH 1M3216 501 CERATEC 3216MM L901 6210TCE001G HH 1M3216 501 CERATEC 3216MM L902 6210TCE001G HH 1M3216 501 CERATEC 3216MM L903 6210TCE001G HH 1M3216 501 CERATEC 3216MM L905 6210TCE001A HB 1S2012 080JT CERATEC 2012 DATE 2005 01 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L1102 6210TCE001G HH 1M3216 501 CERATEC 3216MM L205 6210TCE001A HB 1S2012 080JT CERA...

Page 28: ...0D677 220 OHM 1 10 W 5 1608 R TP DATE 2005 01 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R17 0RJ0822D677 82 OHM 1 10 W 5 1608 R TP R18 0RJ2200D677 220 OHM 1 10 W 5 1608 R TP R19 0RJ0822D677 82 OHM 1 10 W 5 1608 R TP R20 0RJ2200D677 220 OHM 1 10 W 5 1608 R TP R203 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R205 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R206 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R207 ...

Page 29: ...W2204 140 313A TACT 2LEAD 100G TA LG C D N DATE 2005 01 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION SW2204 140 313B TACT 2LEAD 160G TA LG C D N SW2205 140 313A TACT 2LEAD 100G TA LG C D N SW2205 140 313B TACT 2LEAD 160G TA LG C D N SW2206 140 313A TACT 2LEAD 100G TA LG C D N SW2206 140 313B TACT 2LEAD 160G TA LG C D N SW2207 140 313A TACT 2LEAD 100G TA LG C D N SW2207 140 313B TACT 2LEAD 160G...

Page 30: ...Y BK KEC Q2103 0TR387500AA CHIP 2SC3875S ALY BK KEC R2101 0RH1000D622 100 1 10W 5 D R TP R2102 0RH1000D622 100 1 10W 5 D R TP R2103 0RH1001D622 1K OHM 1 10 W 2012 5 00 D R2104 0RH1001D622 1K OHM 1 10 W 2012 5 00 D R2105 0RH1001D622 1K OHM 1 10 W 2012 5 00 D R2106 0RH1000D622 100 1 10W 5 D R TP R2111 0RH4301D622 4 3K 1 10W 5 TA LED1 0DL200000CA SAM5670 DL 2LRG BK Y GREEN PA1101 6726TV0001A TSOP4838...

Page 31: ...Date 2004 05 07 P No 3854TN1001A ...

Page 32: ...Date 2004 05 07 P No 3854TN1001A ...

Page 33: ...Jan 2005 Printed in Korea P NO 3828TSL108Y ...

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