LG LST-3100A Service Manual Download Page 71

Page: 71 / 75

4-14

S AL LOCA. NO. LG PART NO. DESCRIPTION

SPECIFICATION

REMARKS

R1123

0RH3301C622

RESISTOR,METAL GLAZED(CHIP)

3.3K OHM 1 / 16 W 1608 5.00% D

R1124

0RH3301C622

RESISTOR,METAL GLAZED(CHIP)

3.3K OHM 1 / 16 W 1608 5.00% D

R1125

0RH3301C622

RESISTOR,METAL GLAZED(CHIP)

3.3K OHM 1 / 16 W 1608 5.00% D

R1126

0RH1602C622

RESISTOR,METAL GLAZED(CHIP)

16K OHM 1 / 16 W 1608 5.00% D

R1127

0RH1600C622

RESISTOR,METAL GLAZED(CHIP)

160 OHM 1 / 16 W 1608 5.00% D

R1128

0RH1001C622

RESISTOR,METAL GLAZED(CHIP)

1K OHM 1 / 16 W 1608 5.00% D

R1129

0RH1001C622

RESISTOR,METAL GLAZED(CHIP)

1K OHM 1 / 16 W 1608 5.00% D

R1130

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1131

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1132

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1133

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1135

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1136

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1137

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1138

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1139

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R1300

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1303

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1304

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1305

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1306

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1307

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1308

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1309

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1310

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1312

0RH1201C622

RESISTOR,METAL GLAZED(CHIP)

1.2K OHM 1 / 16 W 1608 5.00% D

R1313

0RH1201C622

RESISTOR,METAL GLAZED(CHIP)

1.2K OHM 1 / 16 W 1608 5.00% D

R1314

0RH5603C622

RESISTOR,METAL GLAZED(CHIP)

560K OHM 1 / 16 W 1608 5.00% D

R1315

0RH3901C622

RESISTOR,METAL GLAZED(CHIP)

3.9K OHM 1 / 16 W 1608 5.00% D

R1316

0RH1201C622

RESISTOR,METAL GLAZED(CHIP)

1.2K OHM 1 / 16 W 1608 5.00% D

R1317

0RH1201C622

RESISTOR,METAL GLAZED(CHIP)

1.2K OHM 1 / 16 W 1608 5.00% D

R1318

0RH1002C622

RESISTOR,METAL GLAZED(CHIP)

10K OHM 1 / 16 W 1608 5.00% D

R1319

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1320

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1321

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1322

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1323

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1324

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R1327

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1328

0RH4701C622

RESISTOR,METAL GLAZED(CHIP)

4.7K OHM 1 / 16 W 1608 5.00% D

R1329

0RH1001C622

RESISTOR,METAL GLAZED(CHIP)

1K OHM 1 / 16 W 1608 5.00% D

R204

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R205

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R206

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R207

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R208

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R209

0RH0222C622

RESISTOR,METAL GLAZED(CHIP)

22 OHM 1 / 16 W 1608 5.00% D

R214

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R215

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

R216

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R217

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R218

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R219

0RH1000C622

RESISTOR,METAL GLAZED(CHIP)

100 OHM 1 / 16 W 1608 5.00% D

R220

0RH0000C622

RESISTOR,METAL GLAZED(CHIP)

0 OHM 1 / 16 W 1608 5.00% D

Summary of Contents for LST-3100A

Page 1: ...SET TOP BOX SERVICE MANUAL MODEL LST 3100A MODEL LST 3100A SERVICE MANUAL P NO 3829RVN006Q AUGUST 2003 Printed in Korea CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Page 2: ...CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST ...

Page 3: ...MMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SPECIFICATIONS 1 5 ...

Page 4: ...AYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERA TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC TURE TUBE OR HIGH VOLTAGE SUPPLY AND UNDER CERTAIN CIR CUMSTANCES MAY PRODUCE RADIATION IN EXCESS OF DESIR ABLE LEVELS 2 ONLY FACTORY SPECIFIED C R T ANODE CONNECTORS MUST BE USED DEGAUSSING SHIELDS ALSO SERVE AS X RAY SHIELD...

Page 5: ... pan els Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be u...

Page 6: ...pin Mini DIN 480i Y C Video Output Video Out 1 Typical RCA type Jack connector 480i Composite Digital Audio Output Coaxial Optical Dolby Digital output Analog Audio Output Audio Out 2 Variable Output Level Authorized Service Port 9 pin Serial Port 1 Dimension W x H X D 14 2 x 2 4 x 10 4 inches 360 x 60 x 265 mm Weight 7 7 lbs 3 5 kg Power Requirements AC 120V 60Hz Power Consumption 15W Environment...

Page 7: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Packing Accessory Section 2 3 ...

Page 8: ...2 2 EXPLODED VIEWS 1 Cabinet and Main Frame Section 300 A47 463 463 463 463 250 A46 463 463 A43 A44 A49 280 452 452 260 320 466 457 465 466 469 470 457 A 5 4 3 2 1 B C D ...

Page 9: ... 804 803 801 900 802 803 813 S VIDEO CABLE 806 RF CABLE 823 TELEPHONE LINE 820 PLUG ASS Y 3WAY PACKING SHEET PACKING BATTERY 822 SMART CARD REMOCON BOX CARTONX PACKING OWNER S MANUAL OPTIONAL PARTS 811 812 PLUG ASS Y 1WAY PLUG ASS Y 2WAY ...

Page 10: ...M 3 34 1 OVERALL BLOCK DIAGRAM 1 3 34 2 OVERALL BLOCK DIAGRAM 2 3 36 3 OVERALL BLOCK DIAGRAM 3 3 38 BLOCK DIAGRAM SIGNAL FLOW 3 40 1 POWER SMPS BLOCK DIAGRAM 3 40 2 SYSTEM CONTRL BLOCK DIAGRAM 3 42 3 AUDIO PROCESSING BLOCK DIAGRAM 3 44 4 VIDEO PROCESSING BLOCK DIAGRAM 3 46 CIRCUIT DIAGRAM 3 48 1 POWER SMPS CIRCUIT DIAGRAM 3 48 2 CPU AUDIO POWER CIRCUIT DIAGRAM 3 50 3 HD2 TUNER DVI CIRCUIT DIAGRAM ...

Page 11: ... can use almost kinds of serial communication programs but we send the terminal LG Term which is now used on our side 2 Create Setup Serial Port like the display However the port depends upon the user environment so that you need to create properly 3 Create Setup Terminal like the above display ...

Page 12: ... klLST3100 ENTER and then F10 keys in sequence Once the command mode is up you can download it even in your Reset command 5 When above display shows up you can download applications You can input keys at the prompt 6 Press Enter Key several times to input new command Input serial download command as sto ser like above example and then press Enter key 7 This is the condition you can download applic...

Page 13: ...s from display and it takes about 2 minutes to com plete After downloading the message Please write data into the Flash ROM would show up You may experience errors of downloading Then follow from No 6 again 10 Above message shows that you succeed to write application program into the Flash Restart the power source or input b flash in this display to activate properly If you have no response please...

Page 14: ...normal Replace the F101 Use the same Fuse Replace the BD101 Replace the R105 Is the D103 normal Check or Replace the D106 Replace the D106 Replace the IC103 Replace the D105 Replace the D109 Replace the D110 No 3 3V Is there about 3 8V at the IC153 pin1 Is there about 3 3V 5V at the IC153 pin4 YES Check the IC153 and Replace Check or Replace the D105 NO Check the PWR CTL H signal from µ com Is the...

Page 15: ...ck or Replace the D109 NO Check the PWR CTL H signal from µ com YES YES YES YES NO NO NO 6 No VFD No VFD Is The R123 Normal Is The D107 Normal Is The ZD102 Normal Check and Replace the D108 Replace the R123 Replace the R107 Replace the ZD102 YES YES NO 5 No 30VA No 30VA Is The ZD110 Normal Check and Replace the D110 Replace the ZD101 ...

Page 16: ...z clock is input to IC110 5 Fig 01 IC110 13 is grounded 48KHz clock is output from IC110 4 Fig 02 Data Signal is input to IC110 2 Fig 03 YES Analog Audio Signal from IC110 12 15 Fig 04 Check the Power Supply Part Check 12 2880MHz Clock output at IC200 H5 Check 48KHz Clock ouput at IC200 G5 Check soldering Check Data Signal at IC200 G3 ...

Page 17: ...3 8 Fig 01 12 2880MHz clock Fig 02 48KHz clock Fig 04 Analog Audio Signal Fig 03 Data Signal ...

Page 18: ...ied to IC112 8 Analog audio signal is output from IC112 1 7 Fig 05 Analog audio signal is output from Q102 Q103 Q109 Q110 1 Fig 06 9V is supplied to Q102 Q103 Q109 Q110 3 Check CN300 VARIABLE_ L VARIABLE_ R MONITOR_ L MONITOR_ R And their surroundings Check Power Supply Part Check IC112 and surroundings NO Check Power Supply Part Check Q102 Q103 Q109 Q110 and surroundings ...

Page 19: ...3 10 Fig 06 Analog Audio Signal ...

Page 20: ...3 11 2 NO OPTICAL OUTPUT AUDIO NO YES SPDIF pulse is output from IC200 F3 Fig 07 Check CN103 and surrounding Check IC200 and surroundings ...

Page 21: ... YES YES 5V is supplied to Q100 3 SPDIF pulse is output from IC200 F3 Fig 07 SPDIF pulse is output from Q100 1 Fig 08 Check CN300 S6 G6 and their surroundings Check Power Supply Part Check IC200 and surroundings Check Q100 Q101 and surroundings ...

Page 22: ...3 13 Fig 07 Digital Audio Signal Fig 08 Coaxial Digital Audio Signal ...

Page 23: ... on reset YES Is each chip selection OK YES Is each I2C channel OK YES Are messages output through RS 232C port on PC terminal YES End Check Power Refer to A NO NO NO NO NO Check each clock Refer to B Check reset circuit Refer to C Check each chip selection Refer to D Check each I2C channel Refer to E Check RS 232C circuit Refer to G 3 14 ...

Page 24: ...ed to the pin 21 of IC109 and 3 3V to the pin 9 of IC109 Is 3 3V supplied to the pin 37 of IC100 101 and the pin 1 of IC106 107 YES Check IC100 101 106 107 109 Power Supply Check IC113 2 5V IC111 3 3V NO Power Supply Check IC111 3 3V ...

Page 25: ...3 16 Fig 02 Fig 01 NO YES YES B Is 10MHz clock output from X101 Fig 01 Is 60MHz clock output from the pin 28 of IC109 Fig 02 Check X101 NO Check IC109 ...

Page 26: ...ES C Is the pin 3 of IC103 reset Is the pin 4 of IC104 reset Fig 03 YES Is the pin 93 of IC109 reset YES Is the pin 10 of IC104 reset at the time of power button on Fig 04 IC103 Check NO NO NO IC104 Check IC109 Check IC104 Check ...

Page 27: ...3 18 Fig 05 NO YES YES D Is logic low pulse seen at R1060 Is logic low pulse seen at R1054 Fig 05 YES Is logic low pulse seen at R1061 Check IC109 100 101 NO NO Check IC109 106 107 Check IC109 200 ...

Page 28: ...d SDA signals output from the pin 60 61 of IC109 Fig 06 Fig 07 A re IIC SCL and SDA signal input to the pin 1 2 of IC108 from IC109 YES Are IIC SCL and SDA signals output from the pin 6 7 of IC108 Check IC109 NO NO Check IC108 IC109 Check IC108 105 ...

Page 29: ...S YES F Is RS 232C port setup OK Baudrate Parity Data Bit Stop Bit Is the pin 11 of IC102 OK TxD signal Fig 08 YES Is the pin 12 of IC102 OK RxD signal Modify RS 232C port setup NO NO Check IC109 IC102 Check IC109 IC102 ...

Page 30: ...3 21 4 VIDEO Troubleshooting Flow NO YES YES START No HV sync OUT Any problem in OSD Any problem in main picture Any problem in AV out End YES YES YES A NO NO NO NO B C D E ...

Page 31: ...3 23 FIG 04 V sync signal FIG 03 H sync signal ...

Page 32: ...5 YES YES OK Check voltage of IC203 23 3 3V Check signal strength If OK check system clock 27MHz IC300 9 Check HD 2 chip Interrupt FIG 06 YES NO B Check whether analog mute ON Check analog buffers IC303 for 480i IC302 for component YPbPr or RGB analog Jump to A flow OK No OSD is not a problem Check DVI output YES Check whether A12V is supplied ...

Page 33: ...3 25 FIG 05 Input Stream to IC203 FIG 06 Interrupt Signal ...

Page 34: ...3 26 ...

Page 35: ...3 27 ...

Page 36: ...3 28 YES D Check analog buffers IC303 for 480i Jump to A flow ...

Page 37: ...20P 1080I picture OK END YES YES Connect DVI cable NO NO NO NO NO Change to DVI side Use other DVI cable or Turn on the moni tor that is connected with DVI cable Change the DVI chip Check IC206 57 IDCK 2 DE 4 HSYNC 5 VSYNC The IDCK_ clock shall be 27MHz Refer to Fig 1 Check IC206 57 IDCK 2 DE 4 HSYNC 5 VSYNC The IDCK_ clock shall be 74 25MHz Refer to Fig2 Fig3 and Fig4 ...

Page 38: ...3 30 FIG 01 DVI output at 480p FIG 04 DVI output at 1080i odd field FIG 03 DVI output at 1080i even field FIG 02 DVI output at 720p ...

Page 39: ...A Fig 01 AR200 AR201 packet valid signal Fig 02 AR202 or the pin 27 of IC203 and Byte clock the pin 30 of CN2301 Fig 03 YES YES Check the power lines referring the circuit diagram Change channel with DTV signal Check the status of connection on PCB Check Error flag LED LD200 OFF normal ON Error END YES Check the NIM Tuner IC203 and peripheral parts FIG 03 FIG 02 FIG 01 ...

Page 40: ... 5V powers are supplied normally The clock 1 operates normally The signal 2 operates normally YES YES Check IC100 13 IC100 43 IR100 2 voltage 5V Check Connector P101 3 P101 2 P101 1 voltage 28 24 21 5V Check IC100 5 clock waveform See FIG 01 Check IC100 8 clock waveform See FIG 02 The signal 3 operates normally END YES Check IC100 42 clock waveform See FIG 03 ...

Page 41: ...3 33 FIG 03 IC100 42 VFD Chip Grid1 Pulse FIG 02 IC100 8 VFD Control Clock Signal FIG 01 IC100 5 VFD Chip Clock ...

Page 42: ... MAIN Board SMPS Board 15 FD 21 5V 15 14 FD 24V 14 13 GND 13 12 28V 12 11 GND 11 10 3 3V 10 9 3 3V 9 8 5V 8 7 5V 7 6 GND 6 5 9V 5 4 12V 4 3 GND 3 2 30V 2 1 PWR_CTRL 1 12 11 10 9 8 7 6 5 4 3 2 1 GND IR_DATA DATA_RD DATA_WR CLK CS 5 V GND GND 28 V FD 24 V FD 21 5 V 12 11 10 9 8 7 6 5 4 3 2 1 AC120V ...

Page 43: ...Digital RGB Hs Vs 3V I2C SDRAM 2Mx32bx2 ATSC TP Digital Audio Out 2CH L R Audio Out LPF MC33078 Digital Audio Optical Out DAC CS4340 Digital Audio Coaxial Out AC120V 30V 12V 9V 5V 5V_Alive 3 3V 28V 24V 21 5V SMPS Power Control Variable Audio Out X2 I2C Hub I2C I2C 5V I2C VCR Out S Video Out VCR out Comp VCR out Y C AMP LMH6683 RGB DVI 5V I2C Sil 170 5V_Alive 3 3V Regulator 3 3V_Alive 2 5V Regulato...

Page 44: ...32bx2 ATSC TP Digital Audio Out 2CH L R Audio Out LPF MC33078 Digital Audio Optical Out DAC CS4340 Digital Audio Coaxial Out AC120V 30V 12V 9V 5V 5V_Alive 3 3V 28V 24V 21 5V SMPS Power Control Variable Audio Out X2 I2C Hub I2C I2C 5V I2C VCR Out S Video Out VCR out Comp VCR out Y C AMP LMH6683 RGB DVI 5V I2C Sil 170 5V_Alive 3 3V Regulator 3 3V_Alive 2 5V Regulator 2 5V_Alive 3 3V 1 8V Regulator 1...

Page 45: ...ING BLOCK D109 C120 RECTIFIER SMOOTING BLOCK D106 C116 L103 C117 5V 5VA TO Main P101 8 9 9V REG S W BLOCK IC154 C154 R154 12V REG S W BLOCK IC155 C155 R151 3 3V REG S W BLOCK IC153 C153 R152 5 0VA REG BLOCK IC156 C156 5 0V REG S W BLOCK IC152 C152 R153 FD FD 29VA FUSE F101 NOISE FILTER BLOCK C101 L101 C102 SNUBBER BLOCK D102 C105 C106 R104 DRIVE S W BLOCK IC101 D103 R103 C111 C109 R101 R102 R106 B...

Page 46: ...RAS CLK CKE DQM0 DQM1 WE CA S RAS CLK CKE ST B WE WE CS READY WAIT IC200 IC109 IC101 IC100 IC106 IC107 DQM0 DQM1 WE CA S RAS CLK CKE Front Panel I F PCA9516 SC L SDA SC L SDA I2C1 SC L SDA I2C2 I2C3 I2C4 I2C Ext 82B715 EEPROM 25LC256 TUNER PLL SCL SDA SCL SDA TUNER VSB IC DVI Transmitter Sil 170 CS CLK DATA_WR DATA_RD IR_DATA RS232 Driver MAX232 RX TX RS 232C RX TX Sys Reset KIA7029 74HC14 IC103 I...

Page 47: ... Low Pass Filter MC33078 IC112 Left Audio Out Right Audio Out TR Buffer Left Audio Out Right Audio Out Q102 Q103 Q109 Q110 AUDIO_MUTE_CTRL Digital Audio Optical Out Digital Audio Coaxial Out Variable Audio Out Variable Audio Out HA_IEC958OUT TR Buffer Q100 Q101 HD2 LGDT 1102A IC200 CPU S3C44B0X IC109 ...

Page 48: ...X0 TX1 TX2 TMDS CLK TXC I2C Ext 82B715 DVI Out Digital R 8bit G 8bit B 8bit 3V I2C VCR Out S Video Out HP_CVBS_OUT HP_SVIDEO_Y HP_SVIDEO_C AMP LMH6683 RGB IC206 IC207 IC205 IC302 IC303 FL300 302 IC200 DOUTHACTIVE DOUT_CLK Buffer 74LCX157 DVI_CLK 5V I2C HP_HSYNC HP_VSYNC HP_G HP_B HP_R Buffer TR YPbPr Q313 Q318 BYPBPR_MUTE_CTRL BRGB_MUTE_CTRL MUTE control TR BVCR_MUTE_CTRL I2C HUB PCA9516 Q320 Q322...

Page 49: ...ve Switching Error IC102 IC103 is Defective No Digitron appeared D107 R123 ZD102 are Defective 29VA No Power D128 is Defective 30VA No Power D110 is Defective 12V No Power D125 is Defective 3 3V No Power D105 is Defective Switching Error IC101 is Defective F101 is Defective No Power 5VA No Power D106 is Defective ...

Page 50: ...3 50 3 51 2 CPU AUDIO POWER CIRCUIT DIAGRAM ...

Page 51: ...3 52 3 53 3 HD2 TUNER DVI CIRCUIT DIAGRAM ...

Page 52: ...3 54 3 55 4 ATSCII STB CIRCUIT DIAGRAM ...

Page 53: ...3 56 3 57 5 FRONT CIRCUIT DIAGRAM ...

Page 54: ...3 58 3 59 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...

Page 55: ...3 60 3 61 2 DIGITAL MAIN P C BOARD TOP ...

Page 56: ...3 62 3 63 3 FRONT P C BOARD 4 POWER P C BOARD LOCATION GUIDE ...

Page 57: ......

Page 58: ...A44 3141R 0065D CHASSIS ASSEMBLY LSS 3100A AA1UZL NSP 260 3140R 0055B CHASSIS MAIN LST 3100Z PRESS 320 3720R D080C PANEL VIDEO VCR LST 3100A AA1UZL PRESS 457 353 046N SCREW DRAWING SPECIAL 3X8 BK PANEL ASSEMBLY FRONT A43 3501R 4548A BOARD ASSEMBLY VCR LST 3100A FRONT ASSY 280 3721R F720A PANEL ASSEMBLY FRONT VCR LST 3100A STB NSP 452 353 051A SCREW SPECIAL A49 6871R 4548A PWB PCB ASSEMBLY TOTAL LS...

Page 59: ...LM 10K OHM 1 6 W 5 TA26 R105 0RD0102F608 RESISTOR FIXED CARBON FILM 10 OHM 1 6 W 5 TA26 SW101 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW103 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW104 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW105 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW106 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW107 556 282C SWITCH TACT ...

Page 60: ...NAGEMENT KA78R05TSTU FAIRCHILD 4P TO 22 IC153 0IPMGFA046A IC POWER MANAGEMENT KA278R33TSTU FAIRCHILD 4PIN TO IC154 0IPMGFA034A IC POWER MANAGEMENT KA78R09TSTU FAIRCHILD 4P TO 22 IC155 0IPMGSH010A IC POWER MANAGEMENT PQ12RD1L SHARP 4PIN TO 220 ST IC155 0IPMGFA017A IC POWER MANAGEMENT KA78R12TSTU FAIRCHILD 4P TO 22 IC156 0IPMGFA032A IC POWER MANAGEMENT KA78R05TSTU FAIRCHILD 4P TO 22 L101 616 145H FI...

Page 61: ...0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR107 0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR108 0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR109 0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR110 0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR111 0RRZVTA001L RESISTOR DRAWING 22 OHM 1 10 W 1608 4P 5 R T AR112 0RRZVTA001L RESISTOR D...

Page 62: ...03 0CH8336H611 CAPACITOR CHIP AL ELECTROLYTI 33UF 25V M 85STD CYL R TP C1304 0CH8336H611 CAPACITOR CHIP AL ELECTROLYTI 33UF 25V M 85STD CYL R TP C1305 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C1306 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL R TP C1307 0CH4220K412 CAPA CHIP CERAMIC M L T C F S 22P 50V J COG 1 6X0 8 R TP C1308 0CH4220K412 CAPA CHIP...

Page 63: ...C Temp c 0 1UF 50V 10 B 5YP 1608 R TP C179 0CH4181K412 CAPACITOR CHIP CERAMIC M L TC 180P 50V J COG 1 6X0 8 R TP C180 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C181 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C182 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C183 0CH8107F611 CAPACITOR CHIP AL ELECTROLYTI 100UF 16V...

Page 64: ...c 0 1UF 50V 10 B 5YP 1608 R TP C2037 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2038 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2039 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2040 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2041 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50...

Page 65: ...12 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2091 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2092 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2093 0CH1103K562 CAPACITOR FIXED CERAMIC Temp c 0 01UF 50V 10 X7R X 1608 R T C2094 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C2095 0CH1104K512 CAPACIT...

Page 66: ...ROLYTIC 470UF 16V 20 85STD CYL R TP C318 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL R TP C320 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL R TP C321 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL R TP C323 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL R TP C324 0CH8477F611 CAPACITOR FIXED ELECTROLYTIC 470UF 16V 20 85STD CYL...

Page 67: ...IPMGKE031A IC POWER MANAGEMENT KIA78R33F KEC 5PIN DPAK R TP 1 IC112 0IMO330780B IC MOTOROLA MC33078D 8 SOIC TP LINEAR 18 IC113 0IPMGS1003A IC POWER MANAGEMENT SC1565IST 2 5TR SEMTECH 3PIN S IC114 0IPMGSJ014A IC POWER MANAGEMENT SC15651ST 1 8 SEMTECH 3P SOT 2 IC200 0ICTMLG009A IC CUSTOMIZED LGDT1102 HD2 LG IC SBGA 432PI IC201 0IMMRHY025A IC MEMORIES HY57V643220CT 7 HYUNDAI 86P TS IC202 0IMMRHY025A ...

Page 68: ...03 0TR387509AC TRANSISTOR CHIP KTC3875S GR T1 ALG KEC Q104 0TR101009AD TRANSISTOR KRA101S T1 PA 4 7 4 7 CHIP KEC Q105 0TR101009AD TRANSISTOR KRA101S T1 PA 4 7 4 7 CHIP KEC Q106 0TR101009AD TRANSISTOR KRA101S T1 PA 4 7 4 7 CHIP KEC Q107 0TR387509AC TRANSISTOR CHIP KTC3875S GR T1 ALG KEC Q108 0TR387509AC TRANSISTOR CHIP KTC3875S GR T1 ALG KEC Q109 0TR387509AC TRANSISTOR CHIP KTC3875S GR T1 ALG KEC Q...

Page 69: ... 1 16 W 1608 5 00 D R1022 0RH4701C622 RESISTOR METAL GLAZED CHIP 4 7K OHM 1 16 W 1608 5 00 D R1023 0RH4701C622 RESISTOR METAL GLAZED CHIP 4 7K OHM 1 16 W 1608 5 00 D R1024 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R1025 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R1026 0RH0000C622 RESISTOR METAL GLAZED CHIP 0 OHM 1 16 W 1608 5 00 D R1027 0RH1000C622 RE...

Page 70: ...2 RESISTOR METAL GLAZED CHIP 22 OHM 1 16 W 1608 5 00 D R1094 0RH0222C622 RESISTOR METAL GLAZED CHIP 22 OHM 1 16 W 1608 5 00 D R1095 0RH0222C622 RESISTOR METAL GLAZED CHIP 22 OHM 1 16 W 1608 5 00 D R1096 0RH0222C622 RESISTOR METAL GLAZED CHIP 22 OHM 1 16 W 1608 5 00 D R1097 0RH4701C622 RESISTOR METAL GLAZED CHIP 4 7K OHM 1 16 W 1608 5 00 D R1098 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W...

Page 71: ...1201C622 RESISTOR METAL GLAZED CHIP 1 2K OHM 1 16 W 1608 5 00 D R1313 0RH1201C622 RESISTOR METAL GLAZED CHIP 1 2K OHM 1 16 W 1608 5 00 D R1314 0RH5603C622 RESISTOR METAL GLAZED CHIP 560K OHM 1 16 W 1608 5 00 D R1315 0RH3901C622 RESISTOR METAL GLAZED CHIP 3 9K OHM 1 16 W 1608 5 00 D R1316 0RH1201C622 RESISTOR METAL GLAZED CHIP 1 2K OHM 1 16 W 1608 5 00 D R1317 0RH1201C622 RESISTOR METAL GLAZED CHIP...

Page 72: ...22 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 5 00 D R244 0RH0752C622 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 5 00 D R245 0RH0752C622 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 5 00 D R246 0RH0752C622 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 5 00 D R247 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R248 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608...

Page 73: ...ETAL GLAZED CHIP 2 7K OHM 1 16 W 1608 5 00 D R3041 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 D R3042 0RH2701C622 RESISTOR METAL GLAZED CHIP 2 7K OHM 1 16 W 1608 5 00 D R3043 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 D R3044 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 D R3048 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 ...

Page 74: ...608 5 00 D R3108 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 D R3109 0RH1001C622 RESISTOR METAL GLAZED CHIP 1K OHM 1 16 W 1608 5 00 D R3110 0RH0752C622 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 5 00 D R3111 0RH0682C622 RESISTOR METAL GLAZED CHIP 68 OHM 1 16 W 1608 5 00 D R3112 0RH0682C622 RESISTOR METAL GLAZED CHIP 68 OHM 1 16 W 1608 5 00 D R3113 0RH0682C622 RESISTOR METAL G...

Page 75: ...O DESCRIPTION SPECIFICATION REMARKS ZD1302 0DR050008AA DIODE RECTIFIERS SD05 TC R TP SEMTECH SOD323 5V ZD2300 0DR050008AA DIODE RECTIFIERS SD05 TC R TP SEMTECH SOD323 5V ZD3300 0DZ029109AB DIODE ZENER Z02W9 1Y SOT 23 3K TP TP KEC ...

Search results

Summary of Contents for LST-3100A

Reviews:

Related manuals for LST-3100A

Brands by name

Popular brands

LG LST-3100A, Service Manual

Search results

Summary of Contents for LST-3100A

Reviews:

Related manuals for LST-3100A

Brands by name

Popular brands