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Emerson LF391EM4, Service Manual

The Emerson LF391EM4 is a high-definition LCD TV that provides stunning visuals and immersive entertainment. To enhance your user experience, we offer a comprehensive and free Service Manual for this product. Download the user manual from our website for detailed instructions and troubleshooting tips.

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10-4

1/100V

C1116

1/100V

C1117

1K

R1105

SK210TD

D1101

160K

R1119

0

R1120

CN1001

1

VLED1

2

ILED1

1

C1103

1

C1104

100uH

L1101

120

R1110

120

R1109

10

R1118

1SS400

D1103

47/100V

C1113

47/100V

C1112

OPEN

C1118

1

C1106

0.18/2W

R1115

470/25V

C1102

TFZGTR24B

D1105

1.1K

R1122

1.5K

R1123

8

3

2

10

1

7

12

VCC

UVLO

9

6

11

13

4

ADIM

GND

5

14

15

16

17

18

OVP

CONTROL

LOGIC

SS

RT

FAIL

DETECT

VREG

DRIVE

DRIVE

ADIM-P

IC1101
BD9488F-GE2

22K

R1101

0.047

C1105

100K

R1114

240K

R1111

10

R1117

1

C1108

1K

R1124

51

R1125

2200P

C1115

1

R1127

1

R1126

D1104

1SS400

560P

C1119

Q1101

AP18T10AGH-HF

G

D

S

Q1102

AP18T10AGH-HF

G

D

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BACKLIGHT-SW

P-ON+21V

AMP+13V

BACKLIGHT-ADJ

PROTECT3

3K

R1113

33K

R1112

1

C1110

2200P

C1107

10K

R1121

9.1K

R1103

9.1K

R1102

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C1101

3

VLED2

4

ILED2

5

VLED3

6

ILED3

200

R1116

1000P

C1109

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R1129

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R1128

10K

R1221

560P

C1219

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C1218

47/100V

C1212

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R1228

1

C1204

470/25V

C1202

33K

R1212

120

R1210

1.1K

R1222

1

C1210

2200P

C1207

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R1229

9.1K

R1203

8

3

2

10

1

7

12

VCC

UVLO

9

6

11

13

4

ADIM

GND

5

14

15

16

17

18

OVP

CONTROL

LOGIC

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FAIL

DETECT

VREG

DRIVE

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IC1201
BD9488F-GE2

47/100V

C1213

1K

R1224

1

R1227

0.18/2W

R1215

3K

R1213

10K

R1206

SK210TD

D1201

1

C1208

Q1202

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G

D

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1/100V

C1216

10

R1217

D1204

1SS400

100uH

L1201

10

R1218

1SS400

D1203

1/100V

C1217

160K

R1219

120

R1209

9.1K

R1202

1K

R1205

2200P

C1215

0.047

C1205

100K

R1214

10K

R1204

1

C1206

1.5K

R1223

200

R1216

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C1201

0

R1220

Q1201

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1

C1203

51

R1225

240K

R1211

100K

R1208

100K

R1207

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R1226

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D1205

22K

R1201

1000P

C1209

9.1K

R1302

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R1329

D1304

1SS400

1.5K

R1323

120

R1310

SK210TD

D1301

560P

C1319

9.1K

R1303

51

R1325

TFZGTR24B

D1305

22K

R1301

100uH

L1301

0.18/2W

R1315

1

C1310

10

R1317

1000P

C1309

1K

R1305

1K

R1324

160K

R1319

1

R1326

10K

R1306

0

R1320

100K

R1314

1

C1306

200

R1316

1SS400

D1303

100K

R1308

0.047

C1305

10

R1318

OPEN

R1328

1

C1303

240K

R1311

470/25V

C1302

1/100V

C1317

1/100V

C1316

10K

R1321

1.1K

R1322

100K

R1307

47/100V

C1313

10K

R1304

1

C1308

33K

R1312

Q1302

AP18T10AGH-HF

G

D

S

8

3

2

10

1

7

12

VCC

UVLO

9

6

11

13

4

ADIM

GND

5

14

15

16

17

18

OVP

CONTROL

LOGIC

SS

RT

FAIL

DETECT

VREG

DRIVE

DRIVE

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IC1301
BD9488F-GE2

120

R1309

5.6K

R1313

Q1301

AP18T10AGH-HF

G

D

S

1

C1304

OPEN

C1318

2200P

C1307

47/100V

C1312

1

R1327

OPEN

C1301

2200P

C1315

100K

R1108

10K

R1106

100K

R1107

10K

R1104

L1302

22uH

L1102

22uH

L1202

22uH

5.5

21.0

(SWITCHING)

LED BACKLIGHT

DRIVER

0

35.8

0.7

POWER SUPPLY CBA

TO LCD PANEL

ASSEMBLY

(SWITCHING)

0.7

0.7

13.0

2.1

3.6

5.4

1.2

2.7

2.7

3.2

0.7

5.3

0

13.0

5.5

3.0

0

13.0

2.9

0.7

5.3

1

2

3

4

H

L

K

J

I

M

CONTINUE

POWER 1

0.7

(SWITCHING)

LED BACKLIGHT

DRIVER

13.0

(SWITCHING)

0

21.0

5.5

0.7

(SWITCHING)

0.7

21.0

5.5

0.7

0

13.0

LED BACKLIGHT

DRIVER

(SWITCHING)

0.7

36.0

0.7

36.0

0

13.0

5.6

3.0

0

13.0

2.9

0.7

5.3

2.1

3.6

5.4

1.4

2.7

2.7

3.2

0.7

5.3

5.3

13.0

5.5

3.0

0

13.0

0

2.9

0.7

2.1

3.6

5.4

1.4

2.7

2.7

3.2

0.7

5.3

FL13.10SCP2

Power Supply 2 Schematic Diagram

Summary of Contents for LF391EM4

Page 1: ...nai Electric Co Ltd and may not be used in any way without the express written consent of Funai All other trademarks used herein remain the exclusive property of their respective owners Nothing contained in this manual should be construed as granting by implication or otherwise any license or right to use any of the trademarks displayed herein Misuse of any trademarks or any other content in this ...

Page 2: ...equipment It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE Funai could not possibly know evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service procedure or tool whi...

Page 3: ...embly Instructions 4 1 Electrical Adjustment Instructions 5 1 How to Initialize the LCD TV 6 1 Firmware Renewal Mode 7 1 Troubleshooting 8 1 Block Diagrams TYPE A 9 1 TYPE B 9 6 Schematic Diagrams CBA and Test Points 10 1 Wiring Diagrams TYPE A 11 1 TYPE B 11 2 Exploded Views 12 1 Parts List 13 1 Revision History 14 1 ...

Page 4: ...xels 1920 1080 2 Brightness w filter cd m2 270 3 Viewing Angle Horizontal Vertical 88 to 88 88 to 88 Description Condition Unit Nominal Limit 1 Over Scan Horizontal Vertical 5 5 5 5 5 5 2 Color Temperature x y K 12000 0 272 0 278 5 5 Measurement condition Input signal HDMI1 Raster 40 80IRE 1080i 60 Measurement point Screen center Measuring instrument Made of KONICA MINOLTA Luminance meter CA 310 A...

Page 5: ...om any AC source connect an electrical jumper across the two AC plug prongs Place the instrument AC switch in the on position Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2...

Page 6: ...m is not isolated from the AC power line The two ground systems are electrically separated by insulation material that must not be defeated or altered 5 Observe original lead dress Take extra care to assure correct lead dress in the following areas a near sharp edges b near thermally hot parts be sure that leads and components do not touch thermally hot parts c the AC supply d high voltage and e a...

Page 7: ...tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before soldering F Observe that the wires do not contact heat producing parts heat sinks oxide metal film resistors fusible resistors etc G Check that replaced wires do not contact sharp edged or pointed parts H When a power cord has ...

Page 8: ...exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and followin...

Page 9: ...the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while applying the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using tweezers Fig S 1 6 CAUTION 1 The Fl...

Page 10: ...y one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air desoldering machine Fig S 1 4 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC ...

Page 11: ...ig S 1 6 Note When using a soldering iron care must be taken to ensure that the flat pack IC is not being held by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied 2 Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more easil...

Page 12: ...d to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1 MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body grounding band be careful to avoid contacting semi conductors with your...

Page 13: ...aged Be careful not to scratch the display panel when assembling Be careful not to scratch the rear frame when disassembling re assembling or when tightening the screws Make sure the Shield Plate is placed properly The Function CBA Unit and Sensor Lens are fixed in place by the hooks Make sure these hooks are not damaged Make sure the Function CBA Unit and Sensor Lens are securely in place when re...

Page 14: ...4 2 FL13 10_DC Make sure to replace the Control Plate to a new one when replacing the Front Cabinet 1 Stand Assembly S 2 2 Rear Cover S 1 S 3 S 3 Fig D1 ...

Page 15: ... 3 FL13 10_DC 3 Power Supply CBA S 5 4 Digital Main CBA Unit S 4 Jack Holder Fig D2 5 Stand Bracket S 6 7 Bottom Cover L 6 Speaker 8 Bottom Cover R S 7 S 8 S 9 S 10 6 Speaker 9 LCD Panel Assembly Fig D3 ...

Page 16: ... read all the precautions on pages 4 1 and 4 2 when you disassemble re assemble the Front Cabinet or Function CBA Unit 11 Function CBA Unit 1 Sensor Lens Control Plate 1 10 Front Cabinet 1 Shield Plate Hook 1 S 11 S 11 S 11 Fig D4 ...

Page 17: ...iring Diagram Power Supply CBA Function CBA Unit To LCD Panel Assembly To LCD Panel Assembly To AC Cord To Speaker Digital Main CBA Unit CN3801 CN4052 CN1001 CN601 CN501 CN3013 CN3101 CN3701 1 2 CN3602 Fig D5 1 TYPE A 2 TYPE B ...

Page 18: ...tware Upgrade 5 Select Current Software Info 6 Press 0 4 2 5 7 4 and INFO buttons on the remote control unit in this order The following screen appears 1 Purity Check Mode This mode cycles through full screen displays of red green blue and white to check for non active pixels 1 Enter the service mode 2 Each time the 7 button on the remote control unit is pressed the display changes as follows 3 To...

Page 19: ...f necessary adjust the HDB or HDR again 10 Press 6 button to select the LDB for Low Drive Blue adjustment LDB appears in the screen and press CHANNEL UP DOWN buttons to adjust the color temperature 11 Press 4 button to select the LDR for Low Drive Red adjustment LDR appears in the screen and press CHANNEL UP DOWN buttons to adjust the color temperature 12 If necessary adjust the LDB or LDR again 1...

Page 20: ...ng the following procedure NOTE Disconnect any device from the USB Port before you conduct on this procedure 1 Turn the power on 2 Enter the service mode To cancel the service mode press button on the remote control unit 3 Press BACK button to enter the Control Panel Key Confirmation Menu 4 Press any button on the control panel 5 Press INFO button to proceed with the self check mode 6 Make sure to...

Page 21: ... 8 Insert the USB storage device to the USB port as shown below 9 Select Check and press OK button 10 Select Upgrade and press OK button to start software upgrade 11 The update will start and the following will appear in the screen Note If the above screen isn t displayed repeat from step 1 The appearance shown in 1 is described as follows 12 When the firmware update is completed the following wil...

Page 22: ... be used for this upgrade Update procedure 1 Turn the power off 2 Insert the USB storage device to the USB port as shown below 3 Turn the power on 4 The update will start and the following will appear in the screen Note If the above screen isn t displayed repeat from step 1 The appearance shown in 1 is described as follows 5 When the firmware update is completed the following will appear in the sc...

Page 23: ...ircuit on the primary circuit component and repair it if defective Check if there is any leak or short circuit on the each rectifying circuit component of secondary side and repair it if defective Make sure to repair the primary circuit component before replacing the fuse F602 When the output voltage fluctuates FLOW CHART NO 3 Does the photocoupler circuit on the secondary side operate normally No...

Page 24: ...defective P ON 21V is not output FLOW CHART NO 5 Is approximately 21V voltage supplied to the cathode of D650 D651 D659 No Yes Check D650 D651 D652 D659 C651 C652 C653 C667 C668 and their periphery circuit Repair it if defective AL 3 3V is not output FLOW CHART NO 7 Is approximately 13V voltage supplied to Pin 3 of IC651 Yes No Replace IC651 TYPE A AL 3 3V is not output Replace IC651 No Yes Yes No...

Page 25: ...the Digital Main CBA Unit Replace the Function CBA Unit Replace the Function CBA Unit No No operation is possible from the remote control unit Operation is possible from the unit Picture does not appear normally FLOW CHART NO 3 Is approximately 3 3V voltage supplied to Pin 8 of CN501 Digital Main CBA Unit or LCD Panel Assembly may be defective Check and replace these parts No Yes Is approximately ...

Page 26: ...e the audio signals output to Pin 1 2 3 4 of CN3801 Replace the Digital Main CBA Unit No Yes Is approximately 13V voltage supplied to Pin 15 16 17 18 of CN501 Is approximately 3 3V voltage supplied to Pin 8 of CN501 No No Yes See FLOW CHART NO 7 AL 3 3V is not output Power Supply Section See FLOW CHART NO 6 AMP 13V is not output Power Supply Section Yes ...

Page 27: ...SO T11 P11 R11 P12 6 5 2 1 T12 SCL SDA CS SCK SIN SOUT CS TO VIDEO AUDIO BLOCK DIAGRAM TO VIDEO AUDIO BLOCK DIAGRAM AUDIO MUTE AUDIO MUTE C1 COMP DET COMP DET N12 HP MUTE HP MUTE G13 HP DET HP DET K16 SCL SDA 4 3 TU3901 TUNER UNIT REMOTE SENSOR RS4051 AL 3 3V D4051 POWER KEY IN1 REMOTE LED1 4 4 5 5 6 6 CN3101 CN4052 Q3501 Q3502 LED DRIVE IC3009 RESET BACKLIGHT SW KEY SWITCH 18 6 4 3 5 7 20 21 19 1...

Page 28: ...ONENT Pb IN COMPONENT Pr IN JK3702 DIF OUT1 COMP DET DIF OUT2 IF AGC COM VIDEO Y VIDEO IN COM VIDEO Pr IN COM VIDEO Pb IN TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM JK3001 PC RGB IN Q3301 IC3013 IC3014 1 2 3 13 14 15 12 VGA R IN VGA G IN VGA B IN VGA HSYNC VGA VSYNC VGA SCL VGA SDA TU3901 DIF OUT1 6 DIF OUT2 7 TUNER UNIT IF AGC 5 BUFFER GATE BUFFER Q3302 BUFFER BUFFER GATE VIDEO SIGNAL AUDIO SIGNAL H...

Page 29: ... B IN C7 A9 C11 VGA HSYNC VGA VSYNC HSYNC VSYNC B14 A14 LCD PANEL ASSEMBLY VGA SDA VGA SCL HDMI I F G14 F14 VIDEO DECODER HDMI SCL HDMI SDA SCL1 SDA1 SCL0 SDA0 SCL3 SDA3 SCL2 SDA2 IC3018 HDMI SW IC3011 HDMI SERIAL EEPROM B4 A4 B3 A3 B2 A2 B1 A1 HDMI IN1 HDMI IN2 JK3004 TMDS D0 TMDS D0 TMDS D1 TMDS D1 TMDS D2 TMDS D2 HDMI DATA HDMI CLOCK 7 42 41 45 44 48 47 39 38 36 37 26 27 23 24 20 21 17 18 8 7 1...

Page 30: ...PPLY CBA LCD PANEL ASSEMBLY PROTECT3 BACKLIGHT ADJ BACKLIGHT SW TO SYSTEM CONTROL BLOCK DIAGRAM P ON 21V IC1201 LED BACKLIGHT DRIVER OVP CN1001 DRIVE Q1201 CONTROL LOGIC 1 13 5 6 7 12 DRIVE VREG FAIL DETECT 11 17 15 VLED2 3 ILED2 4 Q1202 IC1301 LED BACKLIGHT DRIVER OVP DRIVE Q1301 CONTROL LOGIC 1 13 5 6 7 12 DRIVE VREG FAIL DETECT 11 17 15 VLED3 5 ILED3 6 Q1302 FL13 10ABLBD ...

Page 31: ...AMP 13V 15 18 AL 3 3V 8 CN3701 W B ERROR VOLTAGE DET IC601 2 CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F602 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail For continued...

Page 32: ...LY CBA CN501 CN501 PROTECT3 P ON 3 3V AL 3 3V Q3605 Q3606 Q3103 P ON H2 STB RESET BACKLIGHT SW BACKLIGHT ADJ SPI SCL SPI SDA SCL SDA 6 5 MEMORY 206 134 75 129 216 126 125 TU SCL TU SDA SCL SDA 4 3 TU3901 TUNER UNIT P ON H2 18 6 RESET 20 4 PROTECT3 21 3 BACKLIGHT SW 19 5 BACKLIGHT ADJ 17 7 RESET IC3009 Q3104 IC3006 199 200 REMOTE 215 KEY IN1 210 LED1 Q3501 Q3502 LED DRIVE 205 208 LIGHT Q3010 BUFFER...

Page 33: ...PC RGB IN 1 2 3 13 14 15 12 VGA R IN VGA G IN VGA B IN VGA HSYNC VGA VSYNC VGA SCL VGA SDA TU3901 DIF OUT1 6 DIF OUT2 7 TUNER UNIT IF AGC 5 VIDEO SIGNAL AUDIO SIGNAL 1 2 3 25 23 CONTROL LOGIC DRIVE DRIVE PWM LOGIC 18 20 DRIVE DRIVE PWM LOGIC 12 POWER LIMIT POWER LIMIT AUDIO L IN AUDIO R IN JK3701 DIGITAL AUDIO OUT COAXIAL Q3701 BUFFER AUDIO L IN AUDIO R IN HP R HP L SPDIF COMPONENT Y VIDEO IN COMP...

Page 34: ... VSYNC VGA HSYNC VGA VSYNC LVDS TX AMP L OUT AMP R OUT SPDIF AUDIO L IN AUDIO R IN HP L HP R DATA0 DATA0 DATA1 DATA1 DATA2 DATA2 HDMI DATA HDMI CLOCK CLOCK CLOCK 26 32 31 29 27 36 34 38 35 60 61 47 48 63 64 130 5 4 8 7 11 10 3 2 6 9 89 88 92 91 95 94 87 86 93 96 71 70 74 HDMI IN3 7 9 4 6 1 3 10 12 16 15 JK3004 DATA0 DATA0 DATA1 DATA1 DATA2 DATA2 HDMI DATA HDMI CLOCK CLOCK CLOCK 16 15 19 18 22 21 1...

Page 35: ...PPLY CBA LCD PANEL ASSEMBLY PROTECT3 BACKLIGHT ADJ BACKLIGHT SW TO SYSTEM CONTROL BLOCK DIAGRAM P ON 21V IC1201 LED BACKLIGHT DRIVER OVP CN1001 DRIVE Q1201 CONTROL LOGIC 1 13 5 6 7 12 DRIVE VREG FAIL DETECT 11 17 15 VLED2 3 ILED2 4 Q1202 IC1301 LED BACKLIGHT DRIVER OVP DRIVE Q1301 CONTROL LOGIC 1 13 5 6 7 12 DRIVE VREG FAIL DETECT 11 17 15 VLED3 5 ILED3 6 Q1302 FL13 10BLBD ...

Page 36: ... 18 AMP 13V 15 18 AL 3 3V 8 CN3602 W B ERROR VOLTAGE DET IC601 2 CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F602 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail For conti...

Page 37: ... fire or other hazards Notes 1 Do not use the part number shown on these drawings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 103 M 106 3 Resistor wattages are 1 4W or 1 6W unless otherwise specified 4 All capacitance values are indicated in μF P 10 6 μF 5...

Page 38: ...in original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Voltage indications on the schematics are as shown below Plug the TV power cord into a standard AC outlet 5 How to read converged lines 6 Test Point Information 2 3 1 5 0 5 0 Voltage Indicates that the voltage is not c...

Page 39: ...0 GND 13 GND 18 AMP 13V 17 AMP 13V 14 GND 9 GND OPEN D658 OPEN C661 OPEN C630 OPEN C631 OPEN C632 3 3 R686 3 3 R687 Q657 2SA950 O 2 2 R688 3 9 R684 C662 22 50V 2 7 R689 3 3 R685 3 9 R683 OPEN C664 4 7 2W R679 4 7 2W R678 4 7 2W R676 0 R653 220 200V C605 L602 LINE FILTER 2 5A 250V 0 R666 Q657A OPEN BC601 BEAD BC602 BEAD 470 25V C1001 1 C1002 BACKLIGHT SW BACKLIGHT ADJ PROTECT3 AMP 13V P ON 21V OPEN...

Page 40: ...05 100K R1214 10K R1204 1 C1206 1 5K R1223 200 R1216 OPEN C1201 0 R1220 Q1201 AP18T10AGH HF G D S 1 C1203 51 R1225 240K R1211 100K R1208 100K R1207 1 R1226 TFZGTR24B D1205 22K R1201 1000P C1209 9 1K R1302 OPEN R1329 D1304 1SS400 1 5K R1323 120 R1310 SK210TD D1301 560P C1319 9 1K R1303 51 R1325 TFZGTR24B D1305 22K R1301 100uH L1301 0 18 2W R1315 1 C1310 10 R1317 1000P C1309 1K R1305 1K R1324 160K R...

Page 41: ... 7K R4004 SW4001 R4052 6 8K 2 2K R4006 D4001 MM5Z5V6B 2 3 1 RS4051 RS 272 VOUT GND VCC 0 1 C4054 9 SDA NU 0 1 C4002 1K R4054 10 C4056 R4060 8 2K R4057 13K SW4007 OPEN R4053 4 LED1 8 SCL NU R4051 56 7 GND 6 KEY IN1 5 REMOTE 9 SDA NU 4 LED1 8 SCL NU 2 P ON 5V CN4053 1 AL 3 3V 3 LIGHT 1 2 C A B FUNCTION CBA UNIT UNLESS OTHERWISE SPECIFIED SWITCHES ARE SKRMABE010 VOL UP REMOTE SENSOR VOL DOWN TO DIGIT...

Page 42: ...0 R3166 0 R3167 4 NU 2 NU CN3602 1 GND 3 NU OPEN C3161 0 R3173 0 R3174 OPEN C3641 OPEN C3642 OPEN C3643 OPEN C3644 OPEN C3645 OPEN C3646 OPEN C3647 L15 OE N13 NU M16 NU L13 TP M15 POL M14 STV N14 NU M13 NU L14 OE2 L16 CPV OPEN C3171 OPEN C3170 OPEN R3172 OPEN R3129 0 R3434 0 R3432 0 R3433 OPEN R3430 OPEN R3431 OPEN R3435 OPEN R3436 OPEN R3438 OPEN R3437 OPEN R3441 OPEN R3442 3P C3662 3P C3663 R13 ...

Page 43: ...U3901 TUNER UNIT 1 3 3V 2 GND 3 SDA 4 SCL 5 IF AGC 6 DIF OUT1 7 DIF OUT2 33P C3173 33P C3172 Q3302 2SK3018 Q3301 2SK3018 2SC4081UBTLQ Q3701 0 1 C3708 10K R3711 100 R3710 220 R3709 110 R3708 1 C3706 100P C3709 JK3701 SDA SCL 10K R3712 1 C3707 33P C3287 33P C3291 33P C3293 33P C3292 33P C3289 33P C3288 OPEN R3339 OPEN R3296 OPEN R3343 OPEN R3298 75 R3302 75 R3303 75 R3301 10 C3905 220 6 3V C3901 1 C...

Page 44: ...R3215 33K R3201 D1 CELL PWR CTRL B16 P ON H2 100 R3211 22 R3213 C14 REMOTE T9 VBUS EN T11 SCK P10 NU R10 USBDP P12 CS T10 USBDN R9 VBUS ST R11 SOUT P11 SIN 5 6K R3099 47 R3093 47 R3094 47 R3092 22 R3095 47 R3089 H14 NU 10 C3072 OPEN C3253 P ON 5V P ON 3 3V AL 3 3V P ON 1 8V BACKLIGHT SW LED1 GPY10 BACKLIGHT ADJ VCOM PWM COMP DET P ON H2 REMOTE CPU RESET N CPU RESET N 3 USBDP 4 GND 2 USBDN CN3009 U...

Page 45: ...6 7 8 IC3007 BD00IC0WEFJ VOUT FB GND NU EN NU NU VCC 10 C3069 10 C3087 0 022 C3075 3 3K R3109 10K R3110 10K R3111 1 8K R3103 10 C3024 L3003 OPEN 10 C3265 OPEN R3138 P ON 3 3V 4 P ON 21V 3 P ON 21V 1 P ON 21V 2 P ON 21V PROTECT3 L3027 BEAD L3021 BEAD L3019 OPEN L3026 BEAD P ON 5V 1 C3159 L3006 BEAD 1 C3155 1 C3156 MM5Z5V6B D3113 1 C3126 1 C3127 10 C3132 10 C3133 C3068 OPEN 1 R3008 1 2 3 4 5 6 7 8 I...

Page 46: ...K R3852 OPEN R3854 1 C3851 15K R3851 OPEN R3853 0 1 C3860 100K R3866 OPEN C3862 10K R3865 2SC4081UBTLQ Q3861 CPU RESET N BACKLIGHT SW J15 RESET 100 R3191 MM5Z5V6B D3111 1000P C3116 56K R3182 3 2 1 4 IC3009 PST8429UR CD VDD GND OUT 0 033 C3113 220 R3178 1 C3106 OPEN D3108 1K R3864 10K R3861 HP MUTE OPEN Q3862 OPEN R3863 OPEN R3869 0 22 C3801 OPEN D3801 1 C3820 1000P C3811 L3801 10uH OPEN R3801 OPEN...

Page 47: ... CLOCK 16 HDMI DATA 18 5V 19 HOT PLUG DETECT 18 5V 19 HOT PLUG DETECT 19 HOT PLUG DETECT 18 5V 12 TMDS CLOCK 4 TMDS D1 8 D SHIELD2 11 C SHIELD0 2 D SHIELD0 3 TMDS D2 10 TMDS CLOCK 7 TMDS D0 6 TMDS D1 JK3003 1 TMDS D2 9 TMDS D0 5 D SHIELD1 10 TMDS CLOCK JK3002 1 TMDS D2 8 D SHIELD2 4 TMDS D1 3 TMDS D2 5 D SHIELD1 12 TMDS CLOCK 7 TMDS D0 9 TMDS D0 2 D SHIELD0 6 TMDS D1 11 C SHIELD0 P ON 3 3V AL 3 3V...

Page 48: ...671 3P C3667 3P C3670 OPEN C3672 3P C3677 OPEN C3683 3P C3668 OPEN C3684 3P C3676 3P C3664 3P C3669 3P C3673 3P C3681 3P C3663 3P C3665 3P C3679 3P C3675 3P C3680 3P C3678 0 R3145 0 R3143 0 R3142 0 R3141 0 R3140 0 R3139 0 R3137 0 R3111 0 R3110 0 R3109 OPEN R3248 OPEN R3249 OPEN R3149 OPEN R3153 P ON 5V OPEN R3284 OPEN Q3202 OPEN R3282 OPEN C3256 OPEN R3281 OPEN Q3281 OPEN C3281 OPEN R3288 OPEN R32...

Page 49: ...120 OPEN R3132 OPEN R3041 OPEN R3904 OPEN C3902 OPEN R3906 OPEN R3926 OPEN C3923 OPEN C3924 OPEN C3919 OPEN C3921 OPEN C3916 OPEN C3918 OPEN C3914 OPEN C3915 OPEN R3927 OPEN R3925 OPEN R3921 OPEN R3922 OPEN R3928 OPEN C3920 VDDC 1 26V L3901 OPEN C3913 OPEN OPEN R3924 OPEN R3923 OPEN R3913 OPEN R3907 OPEN C3922 OPEN C3925 BACKLIGHT DIM BACKLIGHT ADJ OPEN R3916 OPEN OPEN R3919 D3905 OPEN OPEN R3920 ...

Page 50: ...R3093 33 R3094 0 033 C3113 OPEN D3108 1000P C3116 220 R3178 56K R3182 1 C3106 RESET 3 2 1 4 IC3009 PST8429UR CD VDD GND OUT OPEN C3252 OPEN D3110 2SC4081UBTLQ Q3104 100 R3241 10K R3219 OPEN D3109 OPEN R3242 216 STB RESET OPEN C3110 VCOM PWM CELL PWR CTRL OPEN C3175 OPEN R3150 132 I2S OUT MCK OPEN R3195 1K R3199 75 BACKLIGHT SW OPEN R3210 22 R3106 129 BACKLIGHT ADJ OPEN Q3101 PROTECT1 206 P ON H2 1...

Page 51: ...125 7 5K R3711 330P C3719 10P C3703 2SC4081UBTLQ Q3701 R3122 33 1 C3706 75 R3127 JK3701 75 R3125 D3301 1SS400 100 R3710 OPEN C3015 10P C3009 D3055 OPEN D3045 OPEN D3050 OPEN D3053 OPEN D3049 OPEN 0 047 C3118 0 047 C3139 0 047 C3136 1000P C3119 10P C3007 OPEN C3016 R3131 0 1000P C3137 28 10P C3002 OPEN C3017 27 0 R3016 OPEN C3018 30 0 047 C3117 R3121 68 31 0 047 C3134 R3134 33 10K R3347 R3339 100 2...

Page 52: ...46 OPEN C3645 0 1 C3648 OPEN C3649 OPEN C3603 10 C3660 D3602 OPEN OPEN C3644 OPEN C3640 OPEN C3624 OPEN C3625 4 7 C3639 4 7 C3607 D3610 MM5Z4V3B 1 C3659 D3611 OPEN OPEN C3658 12 AVDD DVI 90 AVDD DVI PC 203 AVDD ALIVE L3110 0 10 C3103 0 1 C3132 0 1 C3160 0 1 C3114 40 AVDD CVBS 0 1 C3130 0 1 C3158 L3112 0 59 AVDD AU33 0 1 C3159 L3114 0 68 AVDD DMPLL 0 1 C3157 L3113 0 65 AVDD EAR33 25 VDDC 0 1 C3127 ...

Page 53: ... 10 R3557 8 P ON 5V 210 KEY IN1 OPEN C3559 10K R3185 215 REMOTE 205 LED1 100 R3183 OPEN C3115 MM5Z5V6B D3501 6 LED1 OPEN R3503 100 R3551 1 C3554 OPEN C3555 5 REMOTE 4 7K R3502 CN3101 1 SDA NU 10 R3556 78 SCL 79 SDA 100K R3560 OPEN C3553 10 C3558 Q3502 2SA1576UBTLQ 33P C3552 10K R3184 OPEN R3555 2SC4081UBTLQ Q3010 2 SCL NU 10K R3559 10K R3112 100 R3553 4 7K R3501 2SC4081UBTLQ Q3501 4 7K R3116 OPEN ...

Page 54: ...ED CONT J82 RESET J86 L602 J119 GND J120 GND J156 BL SW J153 PROTECT3 J141 BL ADJ J85 D665 J127 J128 GND J131 C602 C612 C616 C650 C655 IC601 IC602 T601 D 6 5 0 D 6 5 1 D 6 5 9 D660 J95 AMP 13V J96 FB J121 P ON 21V C LIVE REPLACE FUSE AS MARKED NEUTRAL RISK OF FIRE T 2 5A L 250V J130 R601 J133 R605 R611 R619 CN601 C604 C605 C606 C611 C614 D607 D608 JS601 JS602 Q601 L601 BC601 BC602 BC603 BC604 F602...

Page 55: ...8 R1229 D608A Q1101 Q1102 Q1301 Q1302 C1116 C1117 L1102 R1128 R1129 Q657A D1205 D1204 D1104 R1219 D1304 D1305 C1002 R659 R660 D661 Q653 R667 R674 R666 R675 R669 R668 R658 R661 C660 C666 R609 D609A C610 C608 Q602 Q621 C609 R622 R623 C623 R621 D623 D621 D605 D610 C607 D607A R651 R694 D657 L1302 C1319 R1318 D1303 R1324 C1315 R1325 C1306 R1216 R1320 R1319 L1202 R1218 D1203 C1219 R1302 R1303 R1301 C130...

Page 56: ...ION CBA UNIT LCD PANEL ASSEMBLY AC CORD CL3701 CL3011 CL3101 DIGITAL MAIN CBA UNIT 1 4 CN3801 SP3801 SPEAKER L CH SP3802 SPEAKER R CH CL3801 TUNER UNIT COMPONENT Y VIDEO IN COMPONENT Pb IN COMPONENT Pr IN AUDIO L IN AUDIO R IN REAR DIGITAL AUDIO OUT COAXIAL HDMI CONNECTOR 1 HDMI CONNECTOR 2 HDMI CONNECTOR 3 PC RGB IN USB JACK SIDE HEADPHONE JACK TYPE A ...

Page 57: ...801 TUNER UNIT COMPONENT Y VIDEO IN COMPONENT Pb IN COMPONENT Pr IN AUDIO L IN AUDIO R IN REAR DIGITAL AUDIO OUT COAXIAL HDMI CONNECTOR 1 HDMI CONNECTOR 2 HDMI CONNECTOR 3 PC RGB IN USB JACK SIDE HEADPHONE JACK 23 1 CN501 9 1 CN4052 1 6 CN1001 B W CN601 POWER SUPPLY CBA FUNCTION CBA UNIT LCD PANEL ASSEMBLY AC CORD CL3701 CL3011 CL3101 ...

Page 58: ...arts with this mark S7 A15 L24 L7 X6 B17 B18 A3 L23 B19 L35 B23 B23 L23 A13 A4 1 A4 2 L7 L7 L23 L23 B10 L23 S7 A1 A16 A17 B12 A9 A6 L7 L7 B18 B17 L7 L7 A21 Function CBA Unit SP3801 SP3802 CL3801 CL3011 CL3101 L23 L7 Power Supply CBA Digital Main CBA Unit AC601 CL3701 LCD1 ...

Page 59: ...12 2 FL13 10_PEX Packing FRONT FRONT Packing Tape Packing Tape Some Ref Numbers are not in sequence S7 S4 S1 S6 S3 SSK1 X1 X4 X3 X2 SA1 S3 Tape S7 X7 S7 Tape Tape S8 LF391EM4 RFID Label X22 Tape ...

Page 60: ...5MM 110MM WX1A3AT0C301 L7 SCREW P TIGHT 3X10 BIND HEAD GBHP3100 L23 SCREW S TIGHT M3X6 BIND HEAD GBJS3060 L24 S TIGHT SCREW M3X6 BIND HEAD BLACK GBHS3060 SA1 STAND ASSEMBLY A3AT0UH 1ESA34650 SP3801 SPEAKER MAGNETIC 8Ω 8W S0310F15 DS08110XQ003 SP3802 SPEAKER MAGNETIC 8Ω 8W S0310F15 DS08110XQ003 SSK1 STAND SCREW KIT A3AT0UH DOUBLE SEMS SCREW M4X20 BLK 1ESA34649 PACKING S1 CARTON A3AT0UH 1EM334637 S3...

Page 61: ...1108 CHIP CERAMIC CAP 1608 B K 1µF 25V CHD1EK30B105 C1109 CHIP CERAMIC CAP 1608 B K 1000pF 50V CHD1JK30B102 C1110 CHIP CERAMIC CAP 1608 B K 1µF 25V CHD1EK30B105 C1112 ELECTROLYTIC CAP SK100M470YZZP50R CE2AMASTH470 C1113 ELECTROLYTIC CAP SK100M470YZZP50R CE2AMASTH470 C1115 CHIP CERAMIC CAP B K 2200pF 50V CHD1JK30B222 C1116 CHIP CERAMIC CAP 3216 X7R K 1 0µF 100V CA2A105MR080 C1117 CHIP CERAMIC CAP 3...

Page 62: ... RES CHIP 3216 1 4W J 120 Ω RRX4121HH034 R607 RES CHIP 3216 1 4W J 120 Ω RRX4121HH034 R608 RES CHIP 3216 1 4W J 1 5k Ω RRX4152HH034 R609 RES CHIP 1608 1 10W J 100 Ω RRXA101HH013 R611 METAL OXIDE RES 2W J 0 3 Ω RN02R30ZU001 R612 RES CHIP 3216 1 4W J 3 9k Ω RRX4392HH034 R613 RES CHIP 3216 1 4W J 270 Ω RRX4271HH034 R614 RES CHIP 3216 1 4W J 560k Ω RRX4564HH034 R619 METAL OXIDE FILM RES 1W J 100k Ω RN...

Page 63: ... Ω RRXA103HH013 R1305 RES CHIP 1608 1 10W J 1 0k Ω RRXA102HH013 R1306 RES CHIP 1608 1 10W J 10k Ω RRXA103HH013 R1307 RES CHIP 1608 1 10W J 100k Ω RRXA104HH013 R1308 RES CHIP 1608 1 10W J 100k Ω RRXA104HH013 R1309 RES CHIP 1608 1 10W J 120 Ω RRXA121HH013 R1310 RES CHIP 1608 1 10W J 120 Ω RRXA121HH013 R1311 RES CHIP 1608 1 10W F 240k Ω RTW2403HH008 R1312 RES CHIP 1608 1 10W F 33 0k Ω RTW3302HH008 R1...

Page 64: ... product through improper servicing NOTE Parts that are not assigned part numbers are not available Different parts from the original model LF391EM4 Serial No DS2 Ref No Description Part No A15 RATING LABEL A3AT1UH A16 LOGO LABEL A3AU1UH A17 ENERGY GUIDE LABEL A3AT1UH S1 CARTON A3AT1UH 1EM440123 X2 OWNERS MANUAL A31T1UH 1EMN30384 X3 REMOCON UNIT NH402UD NH402UD X6 QUICK START GUIDE A3AT1UH 1EMN304...

Page 65: ...notice in this service manual Don t degrade the safety of the product through improper servicing NOTES 1 Parts that are not assigned part numbers are not available 2 Tolerance of Capacitors and Resistors are noted with the following symbols Different parts from the original model LF391EM4 Serial No DS2 C 0 25 D 0 5 F 1 G 2 J 5 K 10 M 20 N 30 Z 80 20 Ref No Description Part No DIGITAL MAIN CBA UNIT...

Page 66: ...placing any of these components read carefully the product safety notice in this service manual Don t degrade the safety of the product through improper servicing NOTE Parts that are not assigned part numbers are not available Different parts from the original model LF391EM4 Serial No DS2 There is no difference from the original model LF391EM4 Serial No DS2 for Mechanical Parts section ...

Page 67: ...EM4 Serial No DS2 C 0 25 D 0 5 F 1 G 2 J 5 K 10 M 20 N 30 Z 80 20 Ref No Description Part No DIGITAL MAIN CBA UNIT A3AT0MMA 001 FUNCTION CBA UNIT A3AT0MSW 001 POWER SUPPLY CBA A3AT0MPW 001 Q657 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F R676 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R678 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R679 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R683 RES CHIP 3...

Page 68: ...the product safety notice in this service manual Don t degrade the safety of the product through improper servicing NOTE Parts that are not assigned part numbers are not available Different parts from the original model LF391EM4 Serial No DS2 Ref No Description Part No CL3101 FFC WIRE ASSEMBLY 9PIN 9PIN WHITE 238MM WX1A3ATES201 LCD1 LCD PANEL ASSEMBLY U3AT0R0 CL3011 FFC WIRE ASSEMBLY 51PIN W SHIEL...

Page 69: ...Description Part No DIGITAL MAIN CBA UNIT A3ATEMMA 001 FUNCTION CBA UNIT A3AT0MSW 001 POWER SUPPLY CBA A3ATEMPW 001 Q657 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F R676 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R678 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R679 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R683 RES CHIP 3216 1 4W J 3 9 Ω RRX43R9HH034 R684 RES CHIP 3216 1 4W J 3 9 Ω RRX43R9HH03...

Page 70: ... product through improper servicing NOTE Parts that are not assigned part numbers are not available Different parts from the original model LF391EM4 Serial No DS2 Ref No Description Part No A15 RATING LABEL A3AT1UH A16 LOGO LABEL A3AU1UH A17 ENERGY GUIDE LABEL A3AT1UH S1 CARTON A3AT1UH 1EM440123 X2 OWNERS MANUAL A31T1UH 1EMN30384 X3 REMOCON UNIT NH402UD NH402UD X6 QUICK START GUIDE A3AT1UH 1EMN304...

Page 71: ...EM4 Serial No DS2 C 0 25 D 0 5 F 1 G 2 J 5 K 10 M 20 N 30 Z 80 20 Ref No Description Part No DIGITAL MAIN CBA UNIT A3AT1MMA 001 FUNCTION CBA UNIT A3AT0MSW 001 POWER SUPPLY CBA A3AT0MPW 001 Q657 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F R676 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R678 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R679 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R683 RES CHIP 3...

Page 72: ...d part numbers are not available Different parts from the original model LF391EM4 Serial No DS2 Ref No Description Part No A15 RATING LABEL A3AT1UH A16 LOGO LABEL A3AU1UH A17 ENERGY GUIDE LABEL A3AT1UH CL3101 FFC WIRE ASSEMBLY 9PIN 9PIN WHITE 238MM WX1A3ATES201 S1 CARTON A3AT1UH 1EM440123 X2 OWNERS MANUAL A31T1UH 1EMN30384 X3 REMOCON UNIT NH402UD NH402UD X6 QUICK START GUIDE A3AT1UH 1EMN30403 X7 R...

Page 73: ...Description Part No DIGITAL MAIN CBA UNIT A3ATFMMA 001 FUNCTION CBA UNIT A3AT0MSW 001 POWER SUPPLY CBA A3ATEMPW 001 Q657 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F R676 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R678 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R679 METAL OXIDE FILM RES 2W J 4 7 Ω RN024R7ZU001 R683 RES CHIP 3216 1 4W J 3 9 Ω RRX43R9HH034 R684 RES CHIP 3216 1 4W J 3 9 Ω RRX43R9HH03...

Page 74: ... 2 5 LF391EM4 Serial No DS2 Added 2013 3 18 39ME313V F7 Serial No DS2 Added 2013 3 22 LF391EM4 Serial No DS3 1st draft added 2013 3 22 39ME313V F7 Serial No DS3 1st draft added 2013 4 5 LF391EM4 Serial No DS1 Added 2013 4 5 39ME313V F7 Serial No DS1 Added ...

Page 75: ...COMPARISON LIST OF MODEL NAMES Chassis FL13 10 LF391EM4 DS1 A3AT0UH TYPE B DS2 A3ATCUH TYPE A DS3 A3ATEUH TYPE B 39ME313V F7 DS1 A3AT1UH TYPE B DS2 A3ATDUH TYPE A DS3 A3ATFUH TYPE B ...

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