LG DP382B Service Manual Download Page 41

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6. SDRAM, FLASH & EEPROM CIRCUIT DIAGRAM

SDRAM & FLASH & EEPROM

Friday, January 18, 2008

NORMAL:16MBit

DRAM I/F

FLASH I/F

IIC

POWER I/F

SDRAM
1.HYNIX :HY57V641620ETP-7-C

FLASH Memory
-Normal model(16.MBit)
1.KH :KH29LV160CBTC-70G

-Game model (32MBit)

1.KH :KH29LV320CBTC-70G
2.

GAME :32Mit

OFF-PAGE CONNECTION

VER:4.0

R191 33R--->120R

AD3

A19

AD6

AD1

A17

A16

A13

A14

AD0

A18

AD7

AD5

A12

A15

A10

AD2

AD4

A11

DBA1

DQ8

DQ14

MA11

DRAS#

MA2

DQ15

MA5

DQ10

MA4

DQ13

MA8

DBA0

DQM1

DCS#

DQ9

SDCLK

MA9

DQ11

MA3

MA6

DQM0

MA7

MA0

DCAS#

DWE#

MA10

SDCKE

DQ12

MA1

PCE#

PRD#

PWR#

AA20

DQ2

DQ5

DQ1

DQ6

DQ4

DQ3

DQ0

DQ7

SCL

SDA

WE#

CS#

PCE#

PRD#

DCLK

PWR#

DCKE

CAS#

RAS#

AD[0..7]

A[0..20]

3.3V

A20

AA20

BA0

DWE#

CS#

DCKE

DCAS#

RAS#

WE#

SDCLK

DBA1

CAS#

DCS#

SDCKE

DBA0

DCLK

DRAS#

BA1

SCL

DQM[0..1]

MA[0..11]

BA[0..1]

DQ[0..15]

SDA

GND

WE#

CS#

DCLK

DCKE

CAS#

RAS#

A[0..20]

SDA

AD[0..7]

PWR#

PRD#

PCE#

3.3V

1,2,3,5

GND

1,2,3,4,5

DQM[0..1]

MA[0..11]

BA[0..1]

DQ[0..15]

SCL

GND

1,2,3,4,5

3.3V

SD33

DV33

SD33

U11

HY57V641620ETP-7-C

VCC

DQ0

DQ1

VSSQ

DQ2

DQ3

VCCQ

DQ4

DQ5

VSSQ

DQ6

DQ7

DQML

CAS

RAS

A11

A10/AP

VCC

VSS

CKE

CLK

DQMH

VCCQ

DQ8

DQ9

VSSQ

DQ10

DQ11

VCCQ

DQ12

DQ13

DQ14

DQ15

VSS

BA0/A13

BA1/A12

VCCQ

VSSQ

VCC

VSS

R189

CB41

0.1uF

R190

R195

L41

CB40

0.1uF

CB43

0.1uF

U12

KH29LV160BTC-70G

A20

BYTE

A18

WP/ACC

D11

D12

D13

D14

D15

VCC

GND

A19

D10

GND

A10

A12

A11

A13

A14

A15

A16

A17

RESET

R186

CE52

47uF/10v

R191

R192

U13

24C02

SOP8

GND

SDA

SCL

VCC

CB38

0.1uF

R193

10k

CB44

0.1uF

RN1

33x4

CB45

0.1uF

CB42

0.1uF

R188

CB39

0.1uF

CB47

0.1uF

CB46

0.1uF

CE51

100uF/6.3v

R194

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for DP382B

Page 1: ... MODELS DP381B DP382B DP383B CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODELS DP381B DP382B DP383B SERVICE MANUAL P NO AFN70285030 NOVEMBER 2008 Website http biz lgservice com Internal Use Only ...

Page 2: ... 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CONTENTS SECTION 1 SUMMARY SECTION 2 EXPLODED VIEWS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST ...

Page 3: ...t reserved Only for training and service purposes LGE Internal Use Only PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTATICALLY SENSITIVE ES DEVICES SPECIFICATIONS 1 5 ...

Page 4: ...d per the original design Be sure that the safety purpose of the polarized line plug has not been defeated 3 Soldering must be inspected to discover possible cold solder joints solder splashes or sharp solder points Be certain to remove all loose foreign particles 4 Check for physical evidence of damage or deterioration to parts and components for frayed leads or damaged insulation including the A...

Page 5: ...uld be more than 1Mohm Note 1 Accessible Conductive Parts include Metal panels 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 ...

Page 6: ...or laser Signal system PAL CONNECTORS Audio Video Output ø3 5mm mini jack x 1 Video 1 0V p p 75Ω sync negative Audio 2Vrms 1kHz 0dB Earphone terminal ø3 5mm stereo mini jack x 2 LIQUID CRYSTAL DISPLAY Panel size 8 5 inches wide diagonal Projection system R G B stripe Driving system TFT active matrix Resolution 480 x 234 WQVGA ACCESSORIES RCA Video Audio cable AC Adapter IM090WU 150B Automotive Ada...

Page 8: ...LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS 2 2 1 CABINET AND MAIN FRAME SECTION 2 2 2 PACKING ACCESSORY SECTION 2 3 ...

Page 9: ...SB BOARD E D D KEY BOARD I J K H F G MAIN BOARD E A48 A40 A42 A45 A46 A44 264 293 294 289 279 295 296 278 A51 251 251 277 272 277 271 270 252 288 450 286 254 294 256 450 450 282 285 809 287 452 288 451 452 453 454 450 450 261 CABLE2 CABLE1 255 255 266 455 455 260 266 451 H J I A00 CABLE3 262 262 263 EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION ...

Page 10: ...ly for training and service purposes LGE Internal Use Only 2 PACKING ACCESSORY SECTION PLUG ASS Y RCA CABLE 806 834 ADAPTER 833 REMOTE CONTROL 900 BOX 802 801 OWNER S MANUAL CABLE CIGAR JACK 804 PACKING SHEET 835 CAR MOUNT 808 BATTERY 803 PACKING GIFT BOX 802A ...

Page 12: ...5 4 CHARGING CIRCUIT 3 17 WIRING CONNECTION DIAGRAMS 3 18 1 WIRING CONNECTION DIAGRAMS 1 3 18 2 WIRING CONNECTION DIAGRAMS 2 3 19 3 WIRING CONNECTION DIAGRAMS 3 3 20 BLOCK DIAGRAMS 3 21 1 OVERALL BLOCK DIAGRAM 3 21 2 POWER BLOCK DIAGRAM 3 22 3 SERVO BLOCK DIAGRAM 3 23 4 SYSTEM BLOCK DIAGRAM 3 24 5 AV BLOCK DIAGRAM 3 25 CIRCUIT DIAGRAMS 3 27 1 POWER CIRCUIT DIAGRAM 3 27 2 AV CIRCUIT DIAGRAM 3 29 3 ...

Page 13: ...ses LGE Internal Use Only LCD ADJUSTMENTS 1 Power measuring Measure each power after power supply CE38 15V CE41 10V CE50 5V CE49 7 5V C84 3 5V CE47 3 3V 2 VCOM DC level adjustment Adjust the VCOM DC level by adjust the VR2 Make sure that the VCOM DC level is between 1 9V and 2 4V GND 2 15 Vcom Waveform ...

Page 14: ...E YES Display condition LED Backlight Driver abnormal NO Appear shadow in black backgroud Power supply normal Check main B D and repairing YES NO 5V normal IC U9 Check and Replace YES YES NO 7 5V 15V 10V normal D16 D17 D18 D19 Check and Replace NO RGB signal output MTK1389P Pin 184 185 187 Check and Replace YES NO IC U8 Check and Replace VCOM signal NO ...

Page 15: ...ICAL TROUBLESHOOTING GUIDE YES LCD TCON signal normal ALL LOW TFT LCD normal Replace Main B D Check YES NO NO Color normal Check RGB AMP circuit Q29 Q30 Q31 and Replace YES YES NO TFT LCD Power supply voltage 15V 10V 5V Power source D16 D17 D18 D19 Check and Replace NO Each connector Replace and Reassemble YES NO Replace END NO ...

Page 16: ...9P_G 89P_ B SP_R SP_R SP_L SP_L LED_CTR K2 IR BAT_ OUT PWRCTL_ LCD VCOM BLOCK NJM3414A IC LCD POWER BLOCK VGH 15V VGL 1 0V 8V 5V SS6608 IC R G B AMP Circuit ROUT GOUT BOUT VCOM STVR STVL STHR STHL UND LNR CKV OEV OEH CPH1 CPH2 CPH3 VCOM VGH VGL 89P_ R 89P_ G 89P_ B LCD PANEL SPEAK SP L SP L SP R SP R BACKLIGHT BAT_ OUT PWRCTL_ LCD SSPT4105 IC LED DRIVERCIRCUIT Connector Main interface 3 3V GND KEY...

Page 18: ...CE53 10uF 16V D13 OPEN C71 1uF CE49 10uF 20V S18 NE X T S15 PAUSE D19 SSD03 C101 100PF C83 100pF VR2 10K 1 2 3 1 2 3 C50 1000pF C74 0 1uF CE56 10uF 16V D17 DA204 L31 18uH CE58 10uF 16V R150 910K R178 910K D16 DA204 Q30 3904 1 3 2 CE46 10uF 16V R172 1K L1 600R CE35 10uF 16V R152 1M R182 3R 0805 R188 100K R170 75 R145 33R Q1 SSP04 03S 1 2 3 L34 22uH CE51 10uF 16V L39 1 8uH R141 200 R132 100R D23 LED...

Page 19: ... 0 21 0 21 Q1 Emitter 3 3 3 3 Collector 0 01 0 01 Base 3 3 3 3 Q29 Emitter 0 5 0 5 Collector 3 24 3 24 Base 1 18 1 18 Q30 Emitter 0 49 0 49 Collector 3 27 3 27 Base 1 18 1 18 PIN NO STOP PLAY Q31 Emitter 0 49 0 49 Collector 3 26 3 26 Base 1 18 1 18 Q32 Emitter 1 01 1 01 Collector 1 02 1 02 Base 0 51 0 51 Q33 Emitter 0 0 Collector 0 04 0 04 Base 0 64 0 64 U8 NJM3414A 1 0 42 0 42 2 0 0 3 0 0 4 11 59...

Page 20: ...ECTRICAL TROUBLESHOOTING GUIDE No power on by ADAPTOR A Replace ADAPTOR NO YES 1 POWER DC DC CONVERTER CIRCUIT A POWER Is ADAPTOR out 9V Replace F1 NO YES YES Is F1 OK Replace U4 Replace CON1 or CON2 No 3 3V No 5V No LCD power No 1 8V YES YES NO Replace U4 Is U4 3 3V OK No power on by BATTERY A Replace BATTERY NO YES Is BATTERY OK YES A ...

Page 21: ...dio in speaker abnormal Replace IC U3 Replace Q4 and Q6 Check Audio jack mode S W NO YES YES Is Q4 and Q6 OK Replace Speakers NO YES YES Is speakers OK Replace B AUDIO OUT ABNORMAL D AUDIO IN SPEAKER ABNORMAL Video in abnormal Refer to LCD part Replace U1 IC Check Video jack mode NO YES YES Is U1 OK Check R250 R251 C112 YES YES E VIDEO IN ABNORMAL Video out abnormal Check Video jack mode YES YES C...

Page 22: ...part YES YES Check IC U9 Pin130 Check the connectin of MD YES Refer to SERVO part YES NO MAIN ELECTRICAL TROUBLESHOOTING GUIDE Picture abnormal Check the disc YES YES Refer to SERVO part YES Check MPEG_CLK signal of MPEG part YES Check MPEG IC U9 F PICTURE ABNORMAL H OPEN CLOSE ABNORMAL Disc error Check Disc YES YES Refer to SERVO part YES If OK YES If OK If OK G DISC ERROR ...

Page 23: ...l NO OK Does the Video of the DVD Disc play properly Is MPEG data signal normal NO YES Check CD DVD DSP output signal Check MPEG Decoder input signal NO Is error signal normal YES OK Check CD DVD DSP output signal Check MPEG Decoder input signal NO Does the Video of the video CD play properly Is MPEG data signal normal NO Check clock signal NO Does the audio sound output normally Does the audio si...

Page 24: ...oper signals on A B C D of MT1389P NO YES Check the related circuit on MT1389P FEO sugnal NO Proper FEO signal on MT1389P YES YES Check cable connection on pick up head Check the related circuit on MT1389P NO Track on OK Proper FEO signal on MT1389P NO Disc is play NO YES Check the TRSO connection on MT1389P and motor dirver NO Properly TRSO signal on MT1389P YES Check the tracking control amp cir...

Page 25: ...ormal Audio output when disc playback Proper Aout_L Aout_R signal on MT1389P NO Check the related circuit of Audio DAC NO YES YES Check communication lines on MT1389P NO Normal IR VFD Front pannel key functions Commu nications between IR VFD Front pannel key MT1389P Front µ com is normally NO NO YES Check the cable connection on Front pannel TEST END YES B YES MAIN ELECTRICAL TROUBLESHOOTING GUIDE...

Page 26: ...ning and service purposes LGE Internal Use Only MAIN ELECTRICAL TROUBLESHOOTING GUIDE Is U15 OK No turn on Red LED Is 8 4V of J9 RED Pin YES Replace IC U15 NO Is L27 OK Replace L27 YES NO Is IC U14 OK Replace IC U14 YES NO Is Q29 OK Replace Q29 YES NO NO 4 CHARGING CIRCUIT ...

Page 27: ... Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only WIRING CONNECTION DIAGRAMS 1 WIRING CONNECTION DIAGRAMS 1 MAIN PCB LCD PCB LCD PCB MAIN PCB ...

Page 28: ...3 19 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 WIRING CONNECTION DIAGRAMS 2 MAIN PCB USB PCB MAIN PCB USB PCB ...

Page 29: ...3 20 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 WIRING CONNECTION DIAGRAMS 3 MAIN PCB KEY PCB KEY PCB MAIN PCB ...

Page 30: ...SO TRSO FMSO DMSO STBY USBP USBM LCD PANEL DQ 0 15 A_MUTE_SW USB JACK A 5V XI XO 27MHz LDO1 LDO2 IOA V20 M DISC SPINDLE MOTOR DECK MECHANISM PICK UP SLED MOTOR M F F T T SP SP A B C D E F RFO MDI1 2 LIMIT NJM4580M A 5V PT2303 A 5V SP_L R SP_L R OP OP TROPEN M5V ASPDIF CM1117 VCOMO CPH1 2 3 MOD 89P_R G B STHL R STVL R OEH V LNR UND CKV PWRCTL_LCD AV IN OUT SPK H P COAXIAL 4KBit EEPROM 3 3V SCL SDA ...

Page 31: ...e rmi rmister Divide Divide DC DC Sense se BAT BAT Se Sens nse DC DC DC DC DC DC Reg 5VA 5VA 5V 3 3 3 3V 1 8 1 8V S W S W DVB 3 3 3V 3V SW TU TU DVD D5V Voltage Inverter 5V 5V Sta Standb ndby Sta Standb ndby Standb ndby LCD Panel Video Audio System Servo 5VA 5VA 5V 3 3 3 3V 1 8 1 8V 5V 5V 3 3 3 3V LCD Vcc 7 5 7 5V 15V 15V 10V D5V 7 5V 15V 15V 10 10V D5V D5V 5VA S W DVB 5V SW SW TU TU DV DVD D5V D5...

Page 32: ...l Use Only 3 SERVO BLOCK DIAGRAM U4 AM5898N Motor Driverv DVD A B C D RF CD A B C D E F RF PICK UP X501 U9 MTK1389P P DVDPLAYER ONE CHIP FMSO DMSO FOSO TRSO STBY V1P4 FO FO TR TR 27MHz X TAL CDLD LD01 DVDLD LD02 IOA LIMIT ALPC MDI1 MDI2 Spi Spindle dle Mo Moter SL SL Steppi Steppi ng ng Moter OP OP OPO SP SP ...

Page 33: ...JACK DQ0 DQ15 MA0 MA11 DBA0 1 DCLK DCKE 8 16 32MBit FLASH MEMORY AD0 AD7 A0 A19 AA20 AA21 PCE PRD PWR 27MHz A 5V SDI 5VA REMOCON RECEIVER KEY1 LCD MODE DISPLAY SETUP MENU UP DOWN LEFT RIGHT LCD OPEN Power Charge LED KEY2 AD_K2 3 3V 3 3V 2 20 8 8Mbit 2 21 8 16Mbit 2 22 8 32Mbit 2 14 2 8 16 64Mbit 1 8V 3 3V MT1389P MPEG POWER COLOR BRIGHT MODE ENTER AD_K1 IR RED GREEN 4KBit EEPROM 3 3V SDA SCL M_RES...

Page 34: ... LGE Internal Use Only 5 AV BLOCK DIAGRAM SP_R R AOUT_L R 2CH DAC MT1389P MPEG VIDEO 1 8V 3 3V CVBS AUDIO PT2303 SPK SPK A 5V SP_L L H P JACK SP_L R A_MUTE_SW NJM4580M OP AMP A 5V AV IN OUT SP_MUTE VOLUME System AV Part AV_JACK_IN FSAV330 A 5V CVBS_IN VIDEO_IO_CTL VIDEO ADC AV OUT PATH AV IN PATH ...

Page 36: ...F R123 10K Q24 SSPT0403 1 3 2 R124 1K C63 0 1uF F1 FUSE R129 10K R143 20K C64 0 1uF J10 2PIN 2MM 1 2 C72 100pF C68 0 1uF D8 1N4148 1 2 J6 3PIN 1 25 2 1 3 K2 K1 GND R196 NC R113 10K Q23 3904 1 2 3 R109 10K R142 100K R138 39K R133 1K R117 10R R93 20K CE14 100uF 10V C65 0 1uF R53 120K C71 0 1uF R132 9 53K 1 T1 10MH 1 2 3 4 1 2 3 4 R135 1K C46 0 1uF R92 20K C81 0 1uF C110 0 1uF R121 150K1 D16 LL4148 C...

Page 37: ...100R L9 600ohmFB R1 4 7K CE8 10uF 16V R60 NC 47K R31 10K R26 10K R54 1K Q33 3904 1 2 3 Q13 3904 1 2 3 R34 4 7K R41 1K R16 47K U2B NJM4580M 5 6 7 8 4 C12 0 1uF R7 100R C15 NC R32 100R C18 680pF 3300pf 2 4 1 3 5 J1 AV_JACK 3 1 4 2 5 Q5 NC 2N3906 1 2 3 R23 0R R18 10K R38 100R R36 100R R35 1K Q9 3904 1 2 3 C7 ESD 15pF R9 0R PH1 JACK4 11 9 10 8 6 1 2 3 4 5 7 R17 100R R30 5 1K CE13 10uF 16V R19 4 7K R15...

Page 38: ...VA 5VA 3 3V 1 3 5 6 SP_L 1 SP_L 1 SP_R 1 SP_R 1 STVR 5 STVL 5 CKV 5 UND 5 OEV 5 LNR 5 OEH 5 STHL 5 STHR 5 CPH1 5 VCOMO 5 BAT_9V 1 3 4 PWRCTL_LCD 5 89P_R 5 89P_G 5 89P_B 5 GND 1 3 4 5 6 K2 1 4 5 5V 1 2 3 IR 4 5 LED_CTR 2 5VA 4 5 C47 100PF C124 100PF C122 220PF C128 100PF CON1 20pin 0 8mm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 C123 100PF C127 100PF CON2 18pin 0 8mm 1 2 3 4 5 6 7 8 9 10 1...

Page 39: ...0 1uF NC C36 0 1uF R103 10K NC R98 NC R153 6 8K L13 47uH L11 FB 1206 Q28 2SB1132 1 3 2 R107 10K CB5 102 J3 2PIN2 1 2 1 2 R84 0 1R 1 R80 10K R79 3 6K1 C51 1uF R83 15R CE23 47uF 6 3V C55 2200pF C49 0 1uF R108 1R C42 0 1uF C31 68pF R157 0 R86 0R L25 10uH CB2 0 1uF CE31 47uF 6 3V R81 680K L24 10uH TOP con3 HEADER 24 SMD0 5 TOP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 L20 FB Q21 C...

Page 40: ...L36 FB CB11 0 1uF R165 18R C94 1uF C77 2200pF CB17 0 1uF CB6 0 1uF C106 0 01uF C91 0 1uF C87 0 1uF CB30 0 1uF C99 0 1uF TP21 L31 FB CE41 10uF 10V R148 470R C98 0 1uF C105 330pF CB7 0 1uF CB37 0 1uF C85 4 7uF R167 6 8R R168 56R CB14 0 1uF C100 4 7uF TP15 C95 1uF R181 47K C97 120pF NC C104 330pF CB28 0 1uF CB4 0 1uF CE46 10uF 10V C79 0 047uF CE39 100uF 6 3v CB33 0 1uF C113 3300pF L29 10uH TP11 TP28 ...

Page 41: ...3V SD33 SD33 DV33 DV33 DV33 DV33 SD33 U11 HY57V641620ETP 7 C 1 2 4 12 5 7 9 8 10 46 11 13 15 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 36 37 38 39 40 43 42 44 52 45 47 49 48 50 51 53 54 20 21 3 6 27 28 VCC DQ0 DQ1 VSSQ DQ2 DQ3 VCCQ DQ4 DQ5 VSSQ DQ6 DQ7 DQML WE CAS RAS CS A11 A10 AP A0 A1 A2 A3 VCC VSS A4 A5 A6 A7 A8 A9 NC CKE CLK DQMH NC VCCQ DQ8 DQ9 VSSQ DQ10 DQ11 VCCQ DQ12 DQ13 DQ14 ...

Page 42: ... Base 0 01 0 01 Emitter 0 0 Collector 5 11 5 11 Q32 Base 0 02 0 02 Emitter 8 60 8 60 Collector 8 58 8 58 Q33 Base 0 0 Emitter 0 0 Collector 4 96 4 96 Q34 Base 0 0 Emitter 0 0 Collector 8 96 8 96 U1 FSAV330 1 0 0 2 0 72 0 94 3 0 73 0 58 4 0 73 0 56 5 0 0 55 6 0 72 0 53 7 0 71 0 54 8 0 0 9 0 7 0 39 10 0 7 0 38 11 0 71 0 37 12 0 92 0 88 13 0 0 14 0 92 0 93 MODE PIN NO STOP PLAY 15 0 0 16 5 14 5 15 U2...

Page 43: ...0 0 1 76 241 0 1 56 242 1 56 1 56 243 1 24 1 42 244 0 3 35 245 0 0 246 0 3 35 247 3 35 1 61 248 1 34 1 35 249 1 44 1 47 250 0 1 9 251 0 0 252 1 71 1 72 253 0 1 69 254 0 1 13 255 0 0 9 256 3 35 3 35 U10 LD1117 1 0 0 2 1 8 1 81 3 3 36 3 36 4 1 8 1 81 U11 HY57V641620ETP 7 C 1 3 34 3 34 2 0 91 0 95 3 3 34 3 34 4 0 82 1 05 5 0 91 1 22 6 0 0 7 0 91 1 18 8 1 29 1 15 9 3 34 3 34 10 1 1 1 13 11 1 2 1 12 12...

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