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dvd/cd receiver service manual models: lh-t3039x(lh

Contents

1. 12 VCC33 s LACK 8 i ADDATA 11 5 L ch E En 2 q 8 cess T re 02141 18 yo 10 c 36 S830 5345 TUNER_DAT 1 AUX R ety O SCART ONLY S830 5345 TUNER CLK 2 102111 3 4 AD1 CDIN Ne Bo 5345 RST 100 at 16204 pe AUX L R Bi 5 Ano 31 c263 90 Aux 38K C BB 10 46 7 55345 vA 9 231 395 PGADUTB 29 31 PGADUTA 28 10 ANB 27 ONLY 0 ohm USED 7 5 4010 4 R237 39 C287 py 0 16 5 SCAI 5 ohm USED S ADIO AL R236 35 289 51016 oT E MM1692XVBE Ww UU MN z rw a 7 PR R 0UT vec 6 22 8 i CIN 5 8 28 BIAS yout 44 qi 0 63 COMPOSITE COMPOSITE 4 TUNER R T 274 470 63 5 Ur
2. 2002710709 12 16 21 je _ Norna 2002710709 17 23 57 Normal Stopped 252 E Ses ru Stepped y 1s SOEs SON IT 1 00 EE 1 00 UAI 1 NI te wn EE HI TE E n UN T a WA Edge CHI Ed Weis Edge CH F prn prn xi Il l Yt 74 069819 2 35 U x 1 86005 116 536 0 2 359 x EL IN 11653609 x fade 4 69 xem 41 66670 Xen 41 668700 lax lax B cezaeonit coupling Prose prs OFFSET Next me uto sete eo 2 1 b R703 704 R720 711 2002 10 99 17 21 14 pe T Normat 2002 10 09 17 24 34 rmt 3 Stopped ems See Stopped q 2H ems o UT cua 1 00 UAL iv Too vaw mult Tien T HI EU Edge Edge F Normal Normal E 1 74 0690nu 2 35 0 1 06005 1 74 0690nu 2 35 x fade io E E S
3. N sx 0 z z Z 2 m m m 8 5 d SO O O O O O AHABSE amp amp amp amp gt gt 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 49 32 50 31 51 30 52 29 53 28 54 27 55 26 L156 LC87F5M64A 25 57 24 58 23 59 22 1160 21 161 20 162 19 163 18 164 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 223 3 lt lt 25 Poe ER amp gt gt 5 N x 2 gt amp 0572 N 2 34 P32 UTX1 P33 URX1 P34 UTX2 P35 URX2 P36 P37 P27 INT5 T1IN P26 INT5 T1IN P25 INT5 T1IN P24 INT5 T1IN INT7 P23INT4 T1IN P22 INT4 T1IN P21 INT4 T1IN P20 INT4 T1IN INT6 P07 T7O P06 T6O Top view Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes BLOCK DIAGRAM Interru
4. 2 DC 1 48 V 6 1 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes AGND33 14 MDI1 1004 LD02 C501 AVDD33 2 DMO no MT 1389 TRAY_OPEN TRAY CLOSE TRO FOO FG GPI02 100 kS s STOPPED LGE Internal Use Only 7 DISC TYPE JUDGEMENT WAVEFORMS 18 Dec H2 0 12 56 Reading Floppy Disk Drive 1 5 8 1 1 v pc 2 1 D B 1 v C 4 2 V 001 2 DC 1 48 V FIG 7 1 DVD 0 100 kS s STOPPED B Dec 82 19 08 54 1 lt lt 20 1 88 V B Eres 2 28 ms 1 88 V E Eres g 20 ms 1 08 v 48 28 11 02 5 1 V OK v 4 2 LGE Internal Use Only 2 DC 1 48 V FIG 7 2 DVD 3 180 kS s STOPPED 2 18 2271 w on _ PA PB 8 Y G 8 8 818 85
5. m 989 85 500 88985889 5578 2a 96 DACVDDC 95 vsrU GP1013 94 SPDIF GPI012 33 HsTR GPIO44 92 TROUT LR GPIO410 81 0 To 0 0018 o T 67 IC501 UD GPI09 20 RID 88 7 87 LGE Internal Use Only 18 Dec 82 04 17 AM lt lt lt lt 11 MT1389 L VIDEO OUTPUT WAVEFORMS 1 Full colorbar signal COMPOSIT 2002 12 11 18 32 4821 2 DC 1 48 V FIG 10 2 CD vipa 13 14 15 16 wore 1 Loot 18 go 19 2 IC501 w 20 po 21 Fo MT 1389 m 22 TRAY OPEN Sm 23 TRAY CLOSE m 24 TRO 25 26 um 27 USB DP d 28 UsB_DM 29 up vaa gs Co Normal 5 Stopped 42 lt 2115 gt 88 2 H8 gr m 5 li 3 1 6 res Jeo ols nlo eo 8 8158 lt 9e elu la
6. 8766 8767 C7H3 R7G8R7G5 762 761 C7H7 9 99 ze E a 5 5 5 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 761 EH 98 ORTH wow el o o 9 2990 X101 9 8304 2 0 9 2509 59005 599 599 4550 0 0 0 0 0 0105000 0505000 9000507900090 00 000709 20202 90909 222 OOM OOO 95 m 4 5703 C709 P1902 S eso Eso E 2 60000 92905 999020999 iecur a EEEORROR 5 ono lt ENS H H EA 8 X701 12 288MHz 290X156 2007 12 24 e o e 0102 PN103 b 8 v 4704 B Ll 2 5 8 0000000002 1 lel 8 oRIFQ
7. 25 28 11 5 Da 188 kS s 1 V 001 J 2 DC 1 40 V 4 2 V 006 D STOPPED FIG 7 3 CD 18 82 B 15 15 1 lt T 50 ms 1 1 08 V E Bs 2 1 100 1 880 V s m m non lt lt m 85609 o8 5985 Eres 3 gt 2 5 55 50 ms VREF 1 88 V DACVODC vsTu gp1043 94 Tuin l 6 2 93 prosei 2 HsTR GP1044 92 TROUT 3 LR GPI040 81 10 w IC 50 1 Dia D tuF UD GPIOS 89 a PO m 8 8 1 1 v Os VSTD GPIOB TROPEN 10 2 1 004 188 kS s 8 1 v Di r 2 DC 1 40 V 4 2 0043 STOPPED FIG 7 4 CD gm z m af a 8 8 E 5 8 A 4 5 8 8 8 g 8 ER BTR CI 812 als B 8 A H i 8 5 5 s 18 x ik S cud 8 8 508 8 BT SS 818 8 8 ala ol 898 2585 9558 85 2 O lt D s o 225 5 485 5855 5588855 054 8885 8585 5 4885 5 5858385 55 84 29395545 45 2985355 928026128585 gt 595 38584 05 2 4 lt o gt n b a lt 9 E lt Gee ee 8555 5 5 5 8 1 501 z be z
8. 380 80 344438888828888 59995859960 g m z 88 gt 2 25 Only for training and service purposes VREF DACVDDC GPIO13 SPDIF GPIO12 GPIO11 GPIO10 DVDD18 GPIO9 GPIO7 2 DVDD33 RA1 RA0 RA10 BA1 DVSS18 BA0 RAS CAS RWE RA4 RA5 RA6 RA7 RA8 RA9 DVDD33 RA11 RCLK DQM1 LGE Internal Use Only BLOCK DIAGRAM DVD PUH Module RF Amplifier Servo lO Motor Drive Spindle Control Servo Processor FLASH ROM Memory Controller DRAM GPIO IR VFD LGE Internal Use Only System Parser TV Encoder Video Video DAC Video De Processo interlacer 2 26 MPEG 1 2 4 JPEG Video Decoder Internal 6ch Audio DACs 6ch Audio Analog outputs putput Audio Audio DAC Ouptut SDPIF Audio Mic1 Audio Mic2 Internal Audio ADC USB 2 0 High USB 2 0 High Speed Full Speed controller Device MS SD MMC Card MS SD MMC Controller Flash Card Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes PIN DESCRIPTION Abbreviations SR
9. X o 29 22959 OO 2 Noy 0 0 05000 oOo 0 0 9 9 29 o gt 0 0 9 0 000 o OX o ooo 27 Iq 00090909050 97 292929 50500950000 0000 00000 000009040 929 9 5 o 22 o ph A 09 o o o o o 0 0 0 Oo 0 0 0 o 0 0 0 0 00000 CA 0515 00 0 0 o 920 2 2 299 XX 99 OO CO 5000 or 1 09 o 929 2 22 o9 9 OO o 5 0900 299 5 22 0 0 22050500 909090 20 XO 229 OO 2 505 99 2 20 29 9 0909090 lt 229 BPs 3 2164640 29 99 5959 2076806 29 1660540 960 950016407 21640802090 Qo FN 2 e X 16415 go c ae eO 900 9090 90505 929 0 9090009 79 x 2 5 o 20 2 o 2 2 9 o o o AS o 2
10. o gen 8337 2 0050 4 KEY P C BOARD DIAGRAMI LH T3039 2 sn U PWR KI 10 mm 5 FRONT JACK P C BOARD DIAGRAM OS o LGE Internal Use Only 0303 9 9000000000000g L2B3 JK2D2 CHAIN d o oso 959020 O O O 2 9707 0 0 eo 9 9 59 59599 20509 o 0050 2 o 2090009 LMC OO 09000900 4 01 2292299 1209 97950 9 o 00 2 9099990 oo OKI lt a 2 o9 o 200 2600 GG e e DPS ate L2D6 3 2 lt 2 2 2 9 5 2 959 Or X A L20 L207 XN Qe 9 6 9 6 25900020 OOOO lt 5 22 22025520050 FRONT JACK pu 59509990909 9820202020202000 oo 2016110 O o O O o o o O 920202920 0 0 0 0 0 0 0 0 0000 00 O 0 0 0 0 050 000 0 0 0 OCO 9 99 52929202070 Glo O OSO CO OO 020502050 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 050 0 559 955220 0000 070 SS ASA RE SE E SAN DERE AER NE E SNR ARA AR AER AER DA 999 OO 92020555020 OO O O O O O O O O
11. X101 X TAL 9 8304 7 MIC 1 Be SIGNAL BUS TUNER DI RDS CLK RDS DATA TUN10O1 kz CE CLK TUNER PORTABLE IN VIDEO SLIDE gt IC SANYO AUDIO MAIN MICOM DVD RESET DVD TX 9829 SCLK X TAL 12 2BBMHZ PWM IG PS9830B MODULATOR 704 X TAL 1 27 2 AUX SCART AUDIO SCART MONITOR IC204 VIDEO S W IC 1692 2 L S SL 1 CS5345 ADC 4 R G B Y 6G Pb B Pr R Y Pb Pr 1 1 1 1 1 1 1 1 1 1 1 1 COMPONENT lt 1 Y pd 1 1 1 1 1 1 Z ves LGE Internal Use Only lt C S D lt E MT1389 L lt MPEG MCLK 10501 ADC DATA A A A Z Z IC504 IC503 12502 SDRAM FLASH EEPROM 2 47 2 48 LACLK 5 gt 27 SCLK FRONT ADATAQ N SS 27 27 lt 2 2 5 OPEN CLOSE 6965 FOCUS
12. 10716 TURIN ps our I MUTE 27547 3 i SR C2BB 10 18 8238 yy 39K SENT C286 35 10 16 R239 WW 39k PEL siet dir T peu 1 8 H H 818 5555 H 7 in S le SR ONLY ACA USED H R2 14 A XX R 6 8 VIDEO 1 R270 wO 90 8 XX a 6 ONLY RCA USED 5 WIRELESS OPTION 4 8 8 8 3 18 8 gl a a 8 8 8 8 5 B 5 8 g g 8 s 8 I 8 g g s zz 3 3 5 8 5 8 gt PEELE JL i 3 3 D D 1 a 3 1 8 z Ei 8 1 3 2 Deras ii 8 a 8 R222 75 0000 1 lt x xx 56465 s s 88507858 0228 108 8 X Z gt 8 lt S28 t 2 5588 5 555 5578 amp 2 88 8 8 8 9 DIMENSIONAL TOLERANCE ori lt amp A sur e av ce mr 5 PCA EO APPLY A NOT APPLY zi E 1 N tls l 1 a 1 J 2 sz I 6
13. 5050 00 9000 LOO 9 X 20 929 Ox 0292 OO o 70 b 2 5 lt 9 20 09 9 9 L 555559900 55959592929 0 0 0 0 0 0 0 0 0 0 OO OQ Nn 29 999295929959 02565 2 gt 2 A o gt o 0 2 gt 2 o 0 0 0 900 9 x lt gt 050 o o o o 2 020 X Ox 20 2 2 69000 9 9259 9 9 9 920 2 5 99 o 999 2 255554 050500 92 2 0 o 2 207020 990 o 99 o 9220 020 x 929 a 059 2 00000000 9 5509 9 9 9 o 9 202 299 0 2959000 9 9 o 57022 9 99702029 9222 925255 90 9 9 9 97 oo 20 900 9 90 0 9 9 90 0 9 070 999 297 20509009 o 7 00000 05 9 OO 02 9 709 920 9 99 59 900 o 925295970 9900 X o o OO OX 2 o OO X OO 9 2 Sees 100090 6 9000000 07 09095
14. IMPORTANT SAFETY NOTICE COMPONENTS ARE SHADED ON THE SCHEMATIC NOTE FOR EASY IDENTIFICATION 1 Shaded parts are critical for safety Replace only WHEN SERVICING THIS CHASSIS UNDER NO CIR THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF with specified part number CUMSTANCES SHOULD THE ORIGINAL DESIGN FER FROM THE ACTUAL CIRCUIT USED THIS WAY 2 Voltages are DC measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode FROM THE LG CORPORATION ALL COMPONENTS pERFORMANCE IMPROVEMENT CHANGES INTO 12 SHOULD BE REPLACED ONLY WITH TYPES IDENT THE SET IS NOT DELAYED UNTIL THE NEW SERVICE CAL THOSE IN THE ORIGINAL CIRCUIT SPECIAL LITERATURE IS PRINTED 0934 RL104F Sg gt 1 R934 4 7K 55 58 Tdo 1 11 20 gt 6932 1 mx F b 3 C941 1932 C904 m E 4 9 1 4 MR gum foour sev I a m C942 11 150UF 450V 3 4 8 55 L q pasas f m C907 ev ii 4 7 By 4 1 58360 1 5 ron 1 10017 7 rat I 4000uF 10y22 21 939 3 7 KIT 5 000uF 10V 10086 46 p m 56 9 1000P 250V 1 Tul 9 ri ZA D 9904 6 5 n 1
15. m E a 2 gt a E 5 3 a a 5 BH E B 8 1 984 gt 58905 20 J 2 gt y 1 a g 2 x xh 4 8 5 E B 2 B PB 8 8 9 8 5 e BLOCK DIAGRAM MUTE BIAS VINTK TRB2 RESET GND VCTL VCCD VOLD VOLD VOTK VOTK 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND PGND 10K Voltage UTE Detection 15K 10K W Spindle Actuator 25K T Driver 4X Driver 6x Thermal lt J Shut down 177 1 Vcc2 2 i es 25K 10K Yl 227 A M 25 Sled Actuator DE Driver 4X Driver 6x Pre DRV ____ TRAY DRIVE POND yai 10K I Lah EL I a s l6 17 8 9 far 12 13 1 REGO2 VINSL REGO FWD REV VOTR VOTR VOSL VOSL VOFC LGE Internal Use Only 2 32 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes PIN DESCRIPTION PIN No Pin Name Function 1 VINFC Input for focus driver 2 _1 Connect to external transistor 3 REGO2 Regulator voltage output connect to external transistor collector 4 VINSL Input for the sled driver 5 1 Regulator voltage output connect to exte
16. voltage of power transistor is OK Q401 Q40 Check cable connection between transistor output and pick up head NO Laser off NO Proper NO Disc ID is correct RF signal on MT1389 L gt YES Check the RF connection between AM5890 and MT1389 L f NO Proper NO Does spindle rotate SPINDLE signal on MT1389 L YES SPNP SPNN output Check the cable connection between spindle and main PCB LGE Internal Use Only 2 8 Check the spindle control amp circuit of motor driver Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes YES Proper NO signals B C NO Check connections between D of MT1389 L gt MT1389 L and pick up head YES Proper NO Check the related circuit on CD DVDCT signal Ye on MT1389 L MT1389 L CD DVDCT Check DVDCT connection between AM5890 and MT1389 L Proper NE NO NO heck the rel CD DVDCT signal Chec on MT1389 L j Proper TRACK signal on MT1389 L NO Check the TRACK connection gt on MT1389 L and motor driver NO Check the tracking control amp TR amp TR output S circuit on motor driver properly YES Check cable connection on pick up head Check RF si
17. 5 55 5525 IC504 a 85 5 b b b b 425 gqoecrecegere B 5 5 b b b 4 5 EM6381651S 66 4 VIBAV33A 8 8 18 8 5 8 S S Bl n S a 58 8 58 85 8 3 8 8 80 L 4 E els X 8 5 8 For MPEG amp SERVO POWER 5 v20 C501 4 C503 quis 0 VAP C502 T c504 4TU 16 0 4uF GND 8 s d al al s wl l gl zs 5 5 55555888 8 sss 33833838 33888 HT303 HT353 MPEG PART 07 11 23 EBY38558901 1 1 A B D E F G H J K M N R s T LGE Internal Use Only 2 51 2 52 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 3 SERVO CIRCUIT DIAGRAM 12 11 10 VCC5O Ps id L403 HB R409LR410 06 47 caio gt 408 4 OPEN _ 470 16 4 7 1470 46 1001 R447 cao7 _ o tur ue 0402 R414 40K 100 10 1504 1504 AN MVCC 5VA_MOTOR
18. 5 5 suus LGE Internal Use Only 2 24 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes INTERNAL BLOCK DIAGRANMI OF ICs 1 IC501 MPEG MT1389L PIN CONFIGURATION RFA RFB RFC RFD RFE RFF AVDD18_2 AVDD33_1 XTALO AGND33 v20 14 REXT LDO1 LDO2 AVDD33 2 DMO FMO TRAY_OPEN TRAY_CLOSE TRO FOO FG GPIO2 USB_DP USB_DM VDD33_USB VSS33 USB PAD VRT VDD18 USB Copyright 2008 LG Electronics Inc All right reserved gt gt 2 2 2 N gt ox a 7 gt 7 gt D m gt gt gt gt gt 2 2 g ooo gt m gt gt m s 2 2 0 gt gt gt gt 9959 O2YOOL oo Oo 5292525899 25 99555523095 5696 2 82 lt 001 Z 0005 lt gt 2 200206221122 1122 2582225858883 s O 7 1 96 2 95 3 94 4 93 5 92 6 91 7 90 8 89 9 88 10 87 11 86 12 85 13 84 14 83 15 82 16 81 17 80 18 79 19 78 20 77 21 76 22 75 23 74 24 73 25 72 26 71 27 70 28 69 29 68 30 67 31 66 32 65 Q K K K K R K K K UO GO 0 0
19. 99 9 9 o 22 959 20 99 9 9 909090 99010 o 9 595929 529 29099 9 2 9 0 0 0209590059 529202929 0009000000 0 0 0 020509050 9959095050000 2 92 25 o1 2 e o 2555 OO 050 0 55523 OO 555 OX o OOO 05050 2 XX 2 90 9 50 209 50 o Qo 0000 0000000009090 0 900505000000 55555 22959 920 ox 000000 0000000000 TP121 2 90 559000 9590959005900 2000009 o 52555 020902070 92029 99900 00050 07050 92029 920202020 0500 020202 0 0 0 9 0005050705020 29 950500500050 0 692 9555200 20005000050 9 9 50 9 99 7900000 55 9090009 00040 00000 0505009 000009 9 09 99090909 QO 0 0 oO 9002 990 9 06020 020 0 o 0 0 950 529 529 929 AX o 9 0 9 0 0 CX o gt 009 oo 0 o 0 2 2 55005050 5 0 9
20. dd Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 9 SPINDLE CONTROL WAVEFORMS NO DISC CONDITION 18 Dec 82 Reading Floppy Disk Drive 6 54 58 1 2 8 1 88 v 1 B Eres 2 T 2 8 1 88 V i 2 3055 un reper 1 2s 1 88 V T 8 s 11 Di 2 1 190 kS s v 2 DC 1 48 V 4 2 DC STOPPED FIG 9 1 4 I3 V14 84 38 M 15K 15 16 17 1001 18 LD02 19 AVDD33 2 12904 20 an DMO 21 1385 10A 22 TRAY_OPEN STBY 23 TRAY CLOSE 24 TRO 25 m FOO 26 6 2 um 27 UsB_pP 28 USB DM USB V33 i 10 TRACKING CONTROL RELATED SIGNAL System checking 10 Dec 02 1 05 00 1 5 8 1 88 V 1 2 3 4 1 88 V 5 s v 7 Hs i 190 kS s 5 oc 1 48 V 4 2 v 13 D STOPPED FIG 10 1 DVD Copyright 2008 LG Electronics Inc All right reserved 2 21 Only for training and service purposes
21. A 9 8 E e w902 os 4 6402 5 S 6 8 143 0 2 5 He 9188 5 r 8974 x c939 C933 22 Ane 1 QUO 2 S 004 Z gt lt 00 1001N Oo nz ZA EON 2 7 9 g HS 16931 C937 MS oe C934 TOF TO 28 amp 5 16 19 9 mne 3 A Pcsi2 8 4754 29 20912 2 73 GP 901 9 9 9 5 35 T 91 0 Ns e w919 5 Z060Z Gor S169 ae c908 9 18 eS etel feed C905 PAR 12901 20901 25 R903 OIIO OS 2 74 HT303 HT353 EAX39307803 176X154 2008 01 03 LGE Internal Use Only 3 TIMER P C BOARD DIAGRAM LH T3039 COP PPP LPL SRR 05005009090 RRR 00900095009000900090 R347 Cn Xo 7 2808 2 2 9 ez olo 7 Ws 6166 015301 LPP PPP PPP PPP PPP PPP 929 20259 026 0 00 9 00 0
22. Phew eee ee eee cee 1 10 JK204 5 Wy I MIC2 5 R263 1 1 4 1203 12 MIC_DET 9 CFIOGBF 3 QB 7 all GND 1 L 9 1204 1 1 1 CF 1068F 1 Lassssssss ssssssssssssssssssstsssssssssssssasspsssssscssmaslusasasc 56K GND 5 AW r 231 25 ae ae ar cal 1 5 R264 4 L205 CF 1068F 2 T I 7 NB GND 1 B Ls i 1 4 1 1 gt teus Das Su eee Sl oe eee lt lt lt eee eee ee eee GND D E F G H M N IC amp USB amp PTB HT303 2007 08 27 39799201 2007 11 30 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW 0 2 90585 8704 R7G3
23. agge 5 8 5 0 5 878 8 55 5 VREF DACVDDC E vsrU cP10413 94 TROLOSE 012 33 2 HSTR GPI044 92 501 LR cPI040 81 410 m 90 C537 00018 89 2 0 88 TREN a ES 3 WR s amp 5 3 8 8 8 5 18 d 7 18 3 8 Bee sg 8 8 8 oo EN 8 E 8 58 N lo i SLB 8 8 B S TE a Me o als 8 5 878 g 8 15 8 8 8 L 8 5 8 8 2 85 s s 3 s 3 33 s 2 s s Z amp m 4 N s S S Z Z o S S n 8 B S 22825 25989856 EL X B 4 u lt lt 9 8 z 4 t zx a cn Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 18 Dec 82 Reading Floppy Disk Drive 8 15 41 A Eres gus pes orc voe
24. ene tees eee eee eee Re 4 5 B Gear Loading 4 5 9 Guide UP DOWN am 4 5 10 PWB Assembly Loading 4 5 11 Base n p sunan eek 4 5 EXPLODED VIEW 1 DECK MECHANISM EXPLODED VIEW DP 12TV 4 6 Copyright 2008 LG Electronics Inc All right reserved 4 1 LGE Internal Use Only Only for training and service purposes DECK MECHANISM PARTS LOCATIONS Top View Procedure 2 P vi Disass Fig arts Fixing Type emblv Starting No y 4 1 Main Base Clamp Assembly Disc Plate Clamp Magnet Clamp Clamp Upper Tray Disc Base Assembly Sled 4 Screws Gear Feed 1 Connector 1 Locking Tabs Gear Middle Gear Rack Rubber Rear Frame Assembly 1 Screw Up Down Belt Loading 1 Locking Tab Gear Pulley Gear Loading 1 Locking Tab Guide Up Down PWB Assembly 1 Locking Tab
25. 100 m Wet 35 2 RSS RED 515 RA _0 rae S9830B vm 8704 100 TP707 WA 03 VCCSign 00128 5 15 FO RR T E RLt I 5 eon P2 TU h 87 34 vss outas S fs 58 0 to at 3j 3 4 2 0 R oe ct 527 5 _ CENt_0 pee E TREK Els 22 IN2B GNDPB 2 1 LACK 2 pesa TP704 FL 31 INA 6 0782 0 LO cEN PL 30 7 uF 3216 0 18715 e ed INIB VCC2A u LO Sit DADATAO 710 wa m 29 B WF _0 _ fou LZ 100 oe E 33 44 pei 12 IMA OUT2A EUM LO si 4 e 33114118 TH_WAR OUT2A als JK702 35388 22234 PE 8 27 10 ELS 4 5 765 8766 ar ii 1 FAULT OUT B d id 7 8 2 7 5 2 1 0 2042 T uU 884 TRI STATE a 5 4 cme AMP_PON 6728 3 com 42 C753 10412 5 gt PHRDN VCC4B m C789 GNO core 124 ure 7 5 s 103 201 14 C N N m tad w aon 21 11 1 1704 mafl 220 9 20 GND 8015 S 20 RAt_O 58 GNO Reg 0747 5 218 7 R7H GNO Clean N C 1000 50V KME ki ROS 7 8 2 7 5 2 799 5 aa STE 4 0 2042 _ PN 2 GND 58 04 2 8 m e amp C790 2 ET E x od Toop HT303 HT353
26. 20 XO 0 0 o 20 Ox 9900 2 9 59299 99 900 9 9202050005 58 952 902 Left 920000 020005000009 2 0 072 SO OCO oY 995995950290 0000000000 9952229 99995020 Qu 9209609 090 00 9 029 o o o 35 0902020209090 0 0202020 0900090909090 8 2 9 9 9 9 Bars 239 2000000000 100000005090 0 09 22 X 9 OKO 0000 X 29 X COOK X 0 0 9 00000 00 929 C762 9 0205000900000 2 0 0 0 0 0 0 0 0 000 O50 O O O 0 O O 0 0 9000 0000 202000 99 O 00 0000 0 0 0 09 o oo o oo 95050 00 o o 2 ND 99299 o o o o 9 5 6 eje 2 9 9 209 9 222 00000000 000000000 0 9 o OD 0 9 52 2250 00999 00 000000 00 0 O5 o0 e e OS 0 0 0 0 0 0 0 0 0 0 0 0 040 020400 o 9 O O O O 0 0 0 020 0 0 S O LO AO O O O O 0 00 020040 0 0 0 00200006000 o O O O O O O EOS 50900100009 o 2 2 05000 00 020 9 OTK ORA
27. H L Q R 5 T 2 61 2 62 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 8 FRONT CIRCUIT DIAGRAM 12 11 10 LGE Internal Use Only 015301 FL DISPLAY 6315 cLK PN302 STBY LED STBY LED KEY PHR KEY DGND TO FRONT 88608888 588 VOL LED 6840 VOL LED2 R351 00K FL cake M7uF 50y n 5617 6912 VKK N C VOL LED3 LED4 VEE 8337 100K 12301 C303 104 090 x 5645 R362 6315 R363 PT63 5 at 34307 5613 sre 6315 CLK 6315 58 6315 CLK 531 518 OGNO DGND RCU IN KEY 1 5642 5611 5610 0304 2203 RCU IN KEY VOL DN STBY LED VOL ON STBY LED PN301 1304 224 VOLUME VOL30 4 31 KEY SYMBOL LH T9656 50301 STAN BY 58302 __ SKIP SEARCHt PRESET 58303 SkIP SEARCH PRESET SW304 STOP 58306 PAUSE MONO STEREO 5 305 PLAY 54307 opEN CLOSE FRONT HT303 2007 07 16 EBY3979840 1 2007 11 30 2 63 2 64 Copyright 2008 LG Electronics Inc All right reserved Onl
28. 2 2 Vmax 2 7V 1 xi ny Pepa 1 5 lps At 18 48 ns 1 4 95 42 MHz 2 1 V DC 2 65 3 1 v 2 DC 1 40 V 4 2 V 1004 STOPPED FIG 2 1 LGE Internal Use Only 2 14 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 3 TRAY OPEN CLOSE SIGNAL 1 Tray open close waveform Emcoro un uoo aaa Sx Bx Ex Ex 3 Tray open waveform 2 17 51 56 5 1 5 v DC 2 5 V DC f 3 5 V DC f 0043 Copyright 2008 LG Electronics Inc All right reserved 2 Tray close waveform 180 kS s 1 5 v 006 5 V DC 108 kS s 2 DC 7 0 v 2 STOPPED 3 5 V 001 2 004 STOPPED 1 T T vaa 82 1 de i R403 3404 10K 10 T a Lono annt TREN 5 1 TROUT v16433 1 TRIN Wa SR AE 90 5 8 1 3 1 si 73 T 4 jns 8404 T 10K gis 0404 z 3 9 Blow So ss 2 196 kS s a
29. FROM PICKUP ie 100K GND 4 CN402 ii L404 L405 0405 2 1640 100 2503018 NC FHM VCC 1 1407 16402 PFO 2 yR_DVD oe J16403 HB HB ete 4 R407 PICKSEL1 CAE 415 cae in 417 MONICOM 5V 4 121034 AOB 100 2K AM 220 40 0 2200 10 0 uF R Divas e 10405 VR_DVD 6 e 715406 C405 uF l2 407 vao GND 7 oTe 0 dur GND Tap a08 L401 HB Fle e 216408 F wA JIG410 411 A meine comm JIG Alt 0404 D e 16412 25K3018 C cla 16413 0V33 1 BV 811 e 16414 B n rus 910415 F P446 10416 T TU 16 0406 OPEN T I e 718417 1 KTA4544T D402 JI6418 F 4 4 16419 10A RAM 4 SW PDIC 19 e o edm GND 20 0 uF fas e 1842 2 e 16422 mae J16423 VR CD E IC401 o CD VR 23 GND AM5890S jk 2 0401 FOSO 1 28 STBY 83v VINFC MUTE P4 ks 85 211881 gus 12 ies xn 3 26 TRSO GND REGO 2 FMSO 510 4 4 25 R403 840422 VINSL 40K 40K o MM 5 24 CN401 Z3 W REGO 4 RESET m JI6430 LOAD TROPEN 8 6 23 DMSO 1 FWD VINLD 7 LOAD TACLOSE 7 22 VCC 2 g 1863 REV GND TROUT OPEN E 16432 1 m CLOSE 4 15433 4 TRIN T cho GD 09 kad 8 21 cN 8424 OPEN GND 5 os vet GND MW kg 84 9 20 pe 5 et H sL
30. RES Input Reset pin No XT1 Input 32 768kHz crystal oscillator input pin Shared pins General purpose input port AD converter input port AN10 Must be connected to Vpp1 if not to be used No XT2 1 0 32 768kHz crystal oscillator output pin Shared pins General purpose port AD converter input port AN11 Must be set for oscillation and kept open if not to be used No CF1 Input Ceramic resonator input pin No CF2 Output Ceramic resonator output pin No Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 37 LGE Internal Use Only 4 IC201 ADC CS5345 PIN CONFIGURATION SDA CDOUT SCL CCLK ADO CS AD1 CDIN VLC RESET AIN3A AIN3B AIN2A AIN2B AIN1B LGE Internal Use Only 11 2 48 47 46 45 44 43 42 41 40 39 38 37 1 36 VLS 2 35 TSTO 3 34 NC 4 NC 5 32 AGND 6 CS5345 31 AGND 7 30 8 29 PGAOUTB 9 28 PGAOUTA 10 27 AIN6B 11 26 AIN6A 12 25 MICBIAS 13 14 15 16 17 18 19 20 21 22 23 24 zz lt lt 2 38 Copyright 2008 LG Electronics Inc All right reserved On
31. acnoaa 55 TACLOSE 3 5 E DADATA2 P LEA veo 12 85 8 no 0 veo RA2 13 84 0536 oe v4 C501 pe la 100 1508 14 0 1002 gw REXT RAL 15 F 16 81 EEI se s MI1389L M m 8 17 80 1001 BAL gt 0 18 79 7 LD02 DVSS18 m 19 78 AVDD33 2 BAO 551 TROUT 20 77 4 29 25 TROUTES Do THINS TRIN m DMO RAS 1 55 E Be FMO CASI cast 7 2 5 0 22 75 33 22 MAIO m TRAY OPEN S m 3 74 35 20 BAD Ser TRAY CLOSE 4 24 73 37 18 omasi 6 TRO RAS 5 Dm 05 25 72 EJ 15 DE FOO als N 26 71 4 14 FG GPI02 7 42 007 43 12 USB_DP RAB po 44 pe m 1 ww 28 69 0010 15 10 005 USB DM RAS L3 5 E TE 29 68 535 0811 47 0811 00 B 094 5 USB_V33 DVDD33 CA x bn 0 1 pA 30 57 B 48 woo 8 5 USB GND four Sys ds 1 0014 51 4 001 Rag 5 1K PAD_VAT RCLK ey 27 SIS i UE TE GND NC 5 Em 65 m zi 0015 53 2 0 uF 000 1 3 8 56 00 C505 C506 O xunnocourxzuanunur amp Esmnumsusozmuuncoceuznvsenozisgssgs 0 7 A 470 16 050
32. dNIdO H3U Ee 1 707 eeso yko 907 3716 907 E 0 s fad ps 107 9157018 807 Sjan 1 g 308 017 6252 dd E zgsaovay mov EW OId9 341 40 vx ig Si Eur 8 evivava 191 0 207 y OId9 34 Juv um wo gt S amam wo onon Oe N 8 rhe i gt 5 2 oot ER Bom O mz 5 gt amp 2 AN gt 74 DC 1 88 V 1 ASDATA3 ALRCK 48KHZ 2 304MHZ 18 22151515 asa 9 gt gt gt gt NG 23 Jan 02 2002 12 11 18 32 98 19 52 51 5 5 ps Stopped 12 AUDIO OUTPUT FROM mt1389 L 1 Audio related Signal LGE Internal Use Only 2 23 FIG 12 1 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 13 DVD amp AMP WAVEFORMS
33. 9005900090 99 29595000000 o 940 OOO O O O O 00 90209000900090 OOO O O oo 9500 ER 00 200 0009 9290 0200 000 R271 C241 8270 g 9 9 So o o 5915 9 0 920905000 O Ocak LOR l 900900050000 O oo o n 9 09 9 9 9 0 0 0 908 6 5 009 o o cus Aem 099 9 JK201 9205 o PW UG WWE 0050507 5000 4995 250 900 orco oN 950 100 070 0 000000 050 5 09000005050 o 20 9 o 0 0 0 0 0 02000 Os 900 40 20 95 990 95 9905 020002020 9902005909000 00000909 20 9099090 0 90 00 900050 c o0 9 0 5 5 00 000 0000 9 020 0000 000 500 o o 0000900070 09 59 5050 0 020 Sos LJ 225 0000 lt 969 522200 20 2090 09090 00000050 BoP 090 020 090 0000000 5 29 000000 chlo cop o o O 22 2 0 9909 225905 5522 o SHES SG 9 2 2 69 2 70 LGE Internal Use Only MAIN P C BOARD DIAGRAM BOTTOM VI
34. Es m USB_DM 25 IP 4 8 USB V33 2 88 V i 10 6 30 31 a E Sys 5 s 1 068 5 188 kS s 2 V 2 0 1 48 V 1 2 OC H STOPPED FIG 4 1 gE LOADS 1 LGE Internal Use Only 2 16 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION 9 Dec 82 8 55 08 fi Erest1 5 8 200 mV 3 5 8 8 50 V 1 28 mV 2 58 B 58 mv 4 2 Jes DC DC DC DC Reading Floppu Disk Drive 2 000 78 V FIG 5 1 0 0 11 C50 1 C515 AW 30 F506 5 1K 31 AW TE GND Ca NC 0505 470 16 506 0 10 1002 AVDD33 2 DMO FMO TRAY OPEN TRAY CLOSE TRO FOO FG GPI02 M 1 a aq USB_DP USB_DM USB_v33 USB_GND PAD_VAT USB V18 GPIO3 INT GPI04 62106 SF_CS_ SF_DO SF DI 188 kS s 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 18 Dec 802 0 01 32 1 5 8 1 88 V INS N 8 3 lt lt lt lt DC DC DC DC
35. 2008 LG Electronics Inc All right reserved Only for training and service purposes SECTION 4 MECHANISM DP 12TV CONTENTS DECK MECHANISM PARTS LOCATIONS e TOPVIEW sea Swale ale 4 2 View without Tray 4 2 Bottom VIEW AA 4 2 DECK MECHANISM DISASSEMBLY 1 BaS cake eek ACER EA San eR 55 AE 4 3 Tet Clamp Assembly DIGG xe 4 3 16 01 4 3 81 22 Magnet Clamp zu Deke 4 3 121 3 Glamp UPPE 2 09 48 4 3 2 Tray DISC xua i ss tk eee eee eee 4 3 Base Assembly 5160 die tees heres ee see bons EE 4 4 4 4 5 93 90 A090 DOG HS RUNE dca ee 4 4 2223 3 crores cede saw aor ee ae oe eae 4 4 4 Rubber Rear cao cds bi eden aw Maine COR Eee Dee 4 4 5 Frame Assembly Up Down 4 5 6 Loading hee ees 4 5 f eal
36. BOX Copyright 2008 LG Electronics Inc All right reserved 3 5 LGE Internal Use Only Only for training and service purposes e SPEAKER SECTION 1 SATELLITE SPEAKER SH33SU S F L SPK F R SPK 82 CENTER SPK gt R L SPK Pd R R SPK d aS S F R SPK CENTER SPK R L SPK R R SPK 850 LGE Internal Use Only 3 6 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 PASSIVE SUBWOOFER SH33SU W 956 Copyright 2008 LG Electronics Inc All right reserved 3 7 LGE Internal Use Only Only for training and service purposes 3 SATELLITE SPEAKER SH33SD S F L SPK F R SPK i CENTER SPK R L SPK R R SPK 7 7 1 27 1 T 7 1 1 1 1 1 WIRE81 SPK a WIRE82 CENTER SPK 852 WIRE83 R L SPK WIRE84 1 1 850 1 1 1 1 2202 2020 1240 5200 LGE Internal Only 3 8 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 PASSIVE SUBWOOFER SH33SD W 956 Copyright 2008 LG Electronics Inc All right reserved 3 9 LGE Internal Use Only Only for training and service purposes MEMO LGE Internal Use Only Copyright
37. CVBS or SY Ground pin for 2ch audio ADC circuitry Audio ADC input 2 2 MS_CLK set B 3 MCDATA 4 Audio Mute 5 output 7 cr 1 ee audio ADC reference voltageC 3 Em 1 Audio ADC input 1 2 MS DO set B 3 Audio Mute 4 2 output 5 1 C 6 AADVDD Power 3 3V power pin for 2ch audio ADC circuitry APLLVDD3 Power 3 3V Power pin for audio clock circuitry APLLCAP Analog InOut APLL external capacitance connection ADACVSS2 Ground Ground pin for audio DAC circuitry ADACVSS1 ARF LFE Ground Analog Output Ground pin for audio DAC circuitry 1 Audio DAC sub woofer channel output 2 While internal audio DAC not used a ACLK b GPIO Analog Output 1 Audio DAC right Surround channel output 2 While internal audio DAC not used a ABCK b GPIO Analog Output 1 Audio DAC right channel output 2 While internal audio DAC not used a SDATA2 b GPIO c RXD2 Analog Audio DAC reference voltage Analog Output 1 Audio DAC left channel output 2 While internal audio DAC not used a SDATA1 b GPIO c RXD1 Analog Output 1 Audio DAC left Surround channel output 2 While internal audio DAC not used a ALRCK b GPIO ALF CENTER Analog Output 1 Audio DAC center channel output 2 While internal audio DAC not used a ASDATAO b GPIO ADACVDD1 Analog Pow
38. Loading 1 Hook 2Screw 1 2 7 12 13 Base Main 2 Locking Tabs 14 15 16 17 e Bottom View Note When reassembling perform the procedure in reverse order The Bottom on Disassembly column of above Table indicates the part should be disassembled at the Bottom side LGE Internal Use Only 4 2 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes DECK MECHANISM DISASSEMBLY MAIN BASE PLATE CLAMP MAGNET CLAMP gt CLAMP UPPER BASE MAIN BOTTOM SIDE VIEW 1 Main Base Fig 4 1 2 Tray Disc Fig 4 2 1 1 Clamp Assembly Disc 1 Insert and push a Driver in the emergency eject 1 Place the Clamp Assembly Disc as Fig A hole A at the right side or put the Driver on the 2 Lift up the Clamp Assembly Disc in direction of Lever B of the Gear Emergency and pull the arrow A Lever B in direction of arrow so that the Tray Disc 3 Separate the Clamp Assembly Disc from the is ejected about 15 20mm Holder Clamp 2 Pull the Tray Disc until it
39. SIOO data output P11 5100 data input bus P12 5100 clock I O P13 5101 data output P14 5101 data input bus I O P15 5101 clock I O P16 Timer 1 PWML output P17 Timer 1 PWMH output beeper output Port 2 8 bit I O port Yes P20 to P27 specifiable in 1 bit units Pull up resistor can be turned on and off in 1 bit units Other functions P20 INT4 input HOLD reset input timer 1 event input timer OL capture input timer OH capture input INT6 input timer OL capture 1 input P21 to P23 INT4 input HOLD reset input timer 1 event input timer OL capture input timer OH capture input P24 INT5 input HOLD reset input timer 1 event input timer OL capture input timer OH capture input INT7 input timer OH capture 1 input P25 to P27 INT5 input HOLD reset input timer 1 event input timer OL capture input timer OH capture input Interrupt acknowledge type Rising Rising Falling 8 H level L level Falling INT4 enable enable enable disable disable 5 enable enable enable disable disable INT6 enable enable enable disable disable INT7 enable enable enable disable disable LGE Internal Use Only 2 36 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Pin Name yo Description Option Port 7 P70 to P73 1 0 4 bit port I O specifiable in 1 bit units Pull up resistor can be
40. Slew Rate PU Pull Up PD Pull Down SMT Schmitt Trigger 4mA 16mA Output buffer driving strength Main RFIP Type Analog nterface 66 Analog Input Description AC coupled DVD RF signal input RFIP RFIN Analog Input AC coupled DVD RF signal input RFIN RFG Analog Input Main beam RF AC input path RFH RFA Analog Input Analog Input Main beam RF AC input path RF main beam input A RFB Analog Input RF main beam input B RFC Analog Input RF main beam input C RFD Analog Input RF main beam input D RFE Analog Input RF sub beam input E RFF Analog Input RF sub beam input E AVDD18_2 Analog power Analog 1 8V power AVDD33 1 Analog power Analog 3 3V power XTALI Input 27MHz crystal input XTALO Output 27MHz crystal output AGND33 Analog Ground Analog Ground 20 Analog output Reference voltage 2 0V V14 Analog output Reference voltage 1 4V REXT Analog Input Current reference input It generates reference current for RF path Connect an external 15K resistor to this pin and AVSS MDI1 Analog Input Laser power monitor input MDI2 Analog Input Laser power monitor input LDO1 Analog Output Laser driver output LDO2 Analog Output Laser driver output AVDD33_2 DMO Analog Power Analog Output Analog 3 3V power Disk motor con
41. a lax cmm D cmm F singte pe singte 8704 TP707 R709 TP713 R717 TP705 2002 10 09 12 21 53 g lt 2002 10 09 17 23 10 ei _ Morna Stopped q tan ems Sooman UT 17 07 ems Se UT 1 09 Vali 1 00 Vali eal mult ie een 1 Ed Oh F Edge F Normal Normal 1 06005 1 116 536nU 2 35 0 1 1 0 74 0690m 2 35 x fade iow 116 S36nu iieis j p E 65000 Ao S ia lax cmm 171 F F 8707 702 R701 708 4 9 amp 88 11111318 13511333 8813 A 43 5 5 g TP708 PL eee eas 48888 ae 5855 FEE 2525 s 10 5573 10 0072 TP702 10 5588 TP713 R709 100 C w 220 10 0 0066 e 4 0 0065 1 704 10 5564 DVSS63 mer 15707 e q R704 100 707 gt w 10 59 TP711 R720 100 PP w BE 727 104 10 5557 10 0056 8703 100 TP704 FL pap P W mau 10 5553 Py p
42. aG u m SCHEMATIC SMPS WIDE AN HT302 C904 UTC43 _ 4 NOTES Symbol denotes DC chassis ground EBY 39308001 100uUF 450V 150UF 450V NOTE Warning S Parts that are shaded are critical With respecto riek of fre or 2007 11 30 D E F G H K L M N Q R Copyright 2008 LG Electronics Inc All right reserved 2 49 2 50 LGE Internal Use Only Only for training and service purposes 2 MPEG CIRCUIT DIAGRAM 5 g 8 amp 5 5 8 8 5 5 5 g 5 r 1 4 8 8 8 Rig 8 12 BES
43. o je e 6 8 5 RAA OO 2 6 EA g RIBO EE s segs ACE gt E way 22 55 SSS 1135 888 23222523 loco 5 9 90 IIIA 650504059 2 92 2000009 otbo 929 000900000 0009 9000 2009 95959 2009 MS 22 9 20 8 92595950600 52955 5255559 290 540 020700090 00090209090 2 oso peole o EA 9900 20 020 9 29 20000000 RS 0 900000 1 200 0
44. All right reserved Only for training and service purposes Check the connection line of DRV_MUTE Check the related circuit of SLEGN Check the amp circuit on motor driver Check Focus connection on MT1389 L and motor driver NO Motor NO e SLED move to inne ide when it is at outer Driver MUTE pin is high Motor NO Driver DRV_MUTE pin is High SLED and NO SLED output properly Do not put in disc Check the cable connection and close tray with MECHA Optical Lens N has movements for Proper Focus outputs searching Focus to motor dricer YES NO Proper F amp F outputs Check the amp circuit on motor driver Check cable connection with pick up head Copyright 2008 LG Electronics Inc All right reserved 2 7 Only for training and service purposes LGE Internal Use Only DVDLD or CDLD output property NO Laser turns on when reading disc Collector NO Check the laser power circuit on MT1389 L and connecting to power transistor Q401 Q402 Check the related circuit on laser power transistor Check the related circuit on MT1389 L RF signal Check the SPINDLE related circuit on MT1389 L
45. FLASH successfully Ce 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable signal PRD RWR 4 Check FLASH Memory related circuit YES NO Replace FLASH Copyright 2008 LG Electronics Inc All right reserved 2 5 Only for training and service purposes LGE Internal Use Only YES Power On Check connection lines NO Flash NO between FLASH amp MT1389 L 122 gt and the FLASH access time properly whether is suitable or not Check connection lines SDRAM NO between SDRAM IC504 8 works properly MT1389 L and the SDRAM is damaged MT1389 L NO Check the related circuit of VIDEO outputs gt MT1389 L IC501 Pins99 102 properly 103 104 YES Check AV cable connection to TV set ormal OPEN_SW CLOSE SW signal Does ray move inside when it is not at closed position NO YES Normal TROPEN amp TRCLOSE signal LOAD amp LOAD signal NO Check the load OPEN amp CLOSE switch NO Check the Tray control IO pins on MT1389 L NO Check the Tray control MOTOR amp SERVO circuit IC401 Check AV cable connection between main PCBA and loader MECHA LGE Internal Use Only 2 6 Copyright 2008 LG Electronics Inc
46. HEX 2 Copy the file to the root folder of USB storage 3 Put the USB into the SET and move to the USB function Then the upgrade process will be started with the upgrade information 4 If the upgrade process is complete the set will be rebooted with Complete message 2 How to update DVD program Update using CD 1 Rename the filename to download as TARGET BIN in upper cases 2 Copy the file to UPGV folder of CD and burn it P MTK_UPG TARGET BIN 3 Insert the CD to the SET then after a while the CD tray will be opened with upgrade information on the Screen 4 Remove the CD and press UP key in remote controller 5 Remove and reconnect the power cable when it changes to logo screen from upgrade information Then the upgrade process is completed Update using USB 1 Rename the filename to download as TARGET BIN in upper cases 2 Copy the file to folder of the formatted USB and burn it P MTK_UPG TARGET BIN 3 Move to the USB function and insert the USB to the set The upgrade information will be shown on the screen 4 Remove the USB press UP key of the remote control 5 Remove and reconnect the power cable when it changes to logo screen from upgrade information Then the upgrade process is completed Copyright 2008 LG Electronics Inc All right reserved 1 7 LGE Internal Use Only Only for training and service purposes SPECIFICATIONS GENERAL Power suppl
47. IND 8163 400 51 5 30 T i PT INTE TOINARIN F174 0 9830 5345 TUNER CLK Bina m G 1 1 29 er i 2 P73 INT3 TOIN E 2 SDAIPLL DI 4 RUS D ESS0 5345 TAER DAT AR rest reset s pe 28 8134 400 16 9 4 3 4 ni PROTECT 5 51 2 27 136 100 gt gt USING 2008 MATSUSITA CHIP 100 Rii9 88 1 9 100 R G 8 VIDEO 7 ROS CLK cias s eet n s TPI77 8137 100 PLL CLK ROS_DAT P 10 22b e i 100 E 884 1M 5 cra Pan 20 Nen open drain pull up 3 3 190 voi Download pin pin 37 38 39 53 56 59 5 KEY RIF A 100 60 4 9171 8139 100 PLL DO m Tw gt aa sim Wa gt Sl g g PB2 AN2 Pa TAA TIN INTG 6 SLI as la 22 3 da a so RIAL joo mr amp 4 ous 55 STR 555 lt MIC amp USB_SECTION gt E P ES UN T 1 T ols a al xl al ul 4 g letto 099480 404 0 4 8 0 10 E of ae SER ssl lo le 90 P 5 cto sya S i Fut 1
48. K Loan 10 19 ot VOTRE Vcc2 SPH 11 18 Sp spt e 10425 var sp Ks 2 17 SP 9 15424 W VOLD 1 2042 F 13 ici 16 R402 VOFC E Ft 14 15 Tt 10K vOFCt R401 14 10K 8 0404 8 6 5 z 3 9 5 opt th GND 50123 tie 5 B D E P G 1 J K L M Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2050 Foso TRSO lt J FMS0 50 0 50 pMso TROPEN lt TROPEN TRCLOSE lt J TACLOSE oP lt op opt V1P4 lt J 20 v20 1001 lt J 1001 1002 lt J 1002 10 STBY A gt B gt C gt D gt p E gt F gt F FFO gt TROUT gt TROUT TRIN gt TRIN PICKSEL4 gt PICKSEL4 8425 33K GNO HT303 7 HT353 SERVO 07 11 23 EBY38558901 2 2007 11 30 R s T LGE Internal Use Only 4 MICOM CIRCUIT DIAGRAM SECTION gt 12 lt AMP SECTION lt 170 SECTION lt MPEG SECTION 9830 6345 TUNER_DAT 9830 5345 TUNER CLK 5 m 5 B su BB 854 3 EE zle la la z la 8 53 s BB SP le IB IB a gt gt gt gt gt gt 1
49. O O O Q O O O O O O O O O O O O O O O O O O O O O O O O O O O O 2 75 TIMER P C BOARD DIAGRAM LH T3530 295259256 09 ROS KEY P C BOARD DIAGRAMI LH T3530 2 76 9999909599099 90995999999 COD 4303 1630 we Oo 1 1500055 2202o L 16 55 05 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes SECTION 3 EXPLODED VIEWS NOTES THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE A CABINET AND MAIN FRAME SECTION LGE Internal Use Only 3 2 3 1 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes e DECK MECHANISM EXPLODED VIEW DP 12TV Only for training and service purposes Copyright 2008 LG Electronics Inc All right reserved 3 4 3 3 LGE Internal Use Only e PACKING ACCESSORY SECTION KARAOKE DISC PORTABLE IN CABLE MICRO PHONE gt CABLE VIDEO 1WAY AM LOOP ANTENNA BATTERY FM WIRE ANTENNA REMOTE CONTROL DM BAG PACKING CASING T d PACKING CASING
50. and make changes Press pause key once Change will be applied when power OFF gt ON Copyright 2007 LG Electronics Inc All right reserved 1 5 LGE Internal Use Only Only for training and service purposes SERVICE INFORMATION FOR EEPROM MICOM PART POWER ON FLD no disc status Remote control 2 Front STOP push same timing during 5s DETECT NEW EEPROM OPTION EDIT SCREEN MODEL LH T3039 LH T3530 HEX HEX 1 17 17 FLD OP 0 OPT 2 CA CA OPT3 21 20 OPT4 27 27 OPT5 00 00 Use arrow key 4 V move to appropriate position and make changes push same timing LGE Internal Use Only 1 6 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes HOW TO UPDATE AUDIO MIICOMNI amp DVD PROGRAMS 1 How to update AUDIO MICOM program Update using CD 1 Change the filename to download as MODEL NAME _ Version HEX Only upper cases are permitted ex HT353 HT353_0709081 HEX 2 Copy the file to the root folder of a CD and burn it 3 Insert the CD to the SET and move to the DVD function Then the upgrade process will be started with the upgrade information 4 If the upgrade process is complete the set will be rebooted with Complete message Update using USB 1 Change the filename to download as MODEL NAME Version HEX Only upper cases are permitted ex HT353 HT353_0709081
51. components Care must be taken therefore to avoid repair or storage where the temperature or humidity is high where strong magnet ism is present or where there is excessive dust 2 Notes for repair 1 Before replacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and grounded When removing the laser pick up from its conductive bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent AC leakage the metal part of the soldering iron should be grounded 5 Workers should be grounded by an armband 1M 6 Care should be taken not to permit the laser pick up to come in contact with clothing in order to prevent sta tic electricity changes in the clothing to escape from the armband 7 The laser beam from the pick up should NEVER be directly facing the eyes or bare skin Armband Resistor 1 Mohm Resistor 1 Mohm Conductive Sheet Copyright 2008 LG Electronics Inc All right reserved 1 3 LGE Internal Use Only Only for training and service purposes ESD PRECAUTIONS Electrostatically Sensitive Devices ESD Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive Devices ESD Examples
52. m 8 8 48258558 58 58550 0 1 5 12185 GQ gt 585148885488 o9 8 5 5 a 88558 3 523 95 828 z 2 S38 DACVODC 878 94 a a VSTU GPIO13 5 93 3 3 SPDIF GPIO12 x x x HSTR GPIO11 C501 LR gPI0 0 3 7 LGE Internal Only CHa 10 1 0 500 U diy DC Full FIG 11 1 Edge uto 0 400 U Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 Y 96 95 94 93 P508 VAEF VSTU GPI013 LO DN 1 vor a SSA VV 87 ores SS 807 ut EW 3716 got Y 200089 ayo 00 290 er 821147 sow 5 ver 25 Ser 101 aqnu orpny 1201d9 915701 807 noci 607 X g 3001 077 07 007 ir 6000 LNOdO NI SH 3 40 927 novos D 181 811
53. removing the protective material from the leads of a replacement ESD device touch the protective material to the chassis or circuit assembly into which the device will by installed CAUTION BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT AND OBSERVE ALL OTHER SAFETY PRECAUTIONS 8 Minimize bodily motions when handing unpackaged replacement ESD devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gener ate static electricity sufficient to damage an ESD device CAUTION GRAPHIC SYMBOLS THE LIGHTNING FLASH WITH APROWHEAD SYMBOL WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE LGE Internal Use Only 1 4 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes SERVICE INFORMATION FOR EEPROM DVD PART POWER ON DETECT NEW EEPROM DVD LOGO Status NO Disk status OPTION EDIT SCREEN Remote control Pause key gt 1 gt 4 gt 7 gt 2 in order Press number 0 9 Press character A F 1 6 for a while Use arrow key 4 A move to appropriate position
54. turned on and off in 1 bit units Shared pins P70 INTO input HOLD reset input timer OL capture input watchdog timer output P71 1 1 input HOLD reset input timer OH capture input P72 INT2 input HOLD reset input timer 0 event input timer OL capture input high speed clock counter input P73 INT3 input with noise filter timer 0 event input timer capture input AD converter input port AN8 P70 AN9 P71 Interrupt acknowledge type Rising Rising Falling H level Falling L level INTO enable enable disable enable enable INT1 enable enable disable enable enable INT2 enable enable enable disable disable INT3 enable enable enable disable disable No Port 8 P80 to P86 1 0 7 bit I O port I O specifiable in 1 bit units Shared pins AD converter input port ANO P80 to AN6 P86 No PWM2 PWM3 PWM2 and output ports General purpose I O available Port 3 P30 to P37 yo 8 bit I O port I O specifiable in 1 bit units Pull up resistor can be turned on and off in 1 bit units Pin functions P32 UART1 transmit P33 UART1 receive P34 UART2 transmit P35 UART2 receive Yes Port C PCO to PC7 yo 8 bit port I O specifiable in 1 bit units Pull up resistor can be turned on and off in 1 bit units Pin functions 5 to PC7 On chip Debugger Yes
55. 0 0000000 929 20 09 02 9707 0020500205000 000700000030 9000 g o 000505000 59 2 959200000 9 5255550 23 9 99 20 0700 0 0 oo 00 00 2 9079 9 9 0 0 D 20507950 S COONS 5 9590000000 9909 00000 0 gt 222 9995 916419 0 0 0 0 0 o o o Gog 2 o 2 o 00716433 0505 A 22 Oo 9 316516 09 9 020 10 0000 9 9 9 0 20 0 0 505 o 90092005 9 Xo 9 0 509 oo 5 2 Only for training and service purposes Copyright 2008 LG Electronics Inc All right reserved 2 72 2 71 LGE Internal Use Only 2 SMPS P C BOARD DIAGRAM Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 905 NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock T3 15AL 250V w930 250 ge
56. 0 0 ron DES o 5 m 225 E AKK Oooo 646 29 929292070 o 0 9 9 o o 920009 0202000 20 000 L201 020500 0 1 920 Q 2620200 jo SSIS R504 Ie i CIS CD o 2 9959 23 222 2929000 2 552 8 SO oo 0 Ule o9 S n 2 29 9 9 0 x 10504 so OG ota RoR 00 zo Us Ue eoe 000209 059 5 o 222 e tor Co 9992 5 o o 2 9 02 RAE 1510 80 o 0 2 ID o Dg 9 lon 56 am Sa Ex Op ag 9 88 10501 e 9 C97 TUI01 EXE Powers S I B Pes TIERE amp _ oo B Hoz OG OS 8 0534 o o o o E 6530 09 C527 o o M 68 o 2 ont ae S s e RAM 526 csi 9 De Eos 92 287 6522 44 C521 o toon 09 C524 S b 9 9 s ono 2 E ee 10 20 o 333 0 00000000000 9 6 0000000 R 1058 505 48686 2 0005060 509000 0000 09000
57. 0005000500 2 2 OX 00 9909 50 25 OOOO 920702920 o 0202 004 9999999 CO 0000 2 0209 9020 9 0705050 020 005000 29 92070 20 050 0 20202000 o 920 929 2555 e 9 909 299 9 9 0 9 SOS 39200 9 A o o 9 o o ooo o 9 0 X OO o o o 9 592920 29599595 920 0220 0 050 O O 050 0900 99 Oo Oo 2000 000 See eee eS o Oo OO 0 0 0 0 0 90 090 222 929 lt 9 0 0 0 Oo 9 o OO A 0000 o 9 o o 9 C o o 090 2 o OO 029 lt oo o 92020 92 00 eu 9 9096040 og o Xo o 202920 25029 lt lt 55590 Og 900 0 O O O OROL o 9 5 0 070 0 92020202020 o 9999990 929295 52929290 OC 8 oo OC o ok o 9209 9 9 9 Cp X 2 KIO 5 070 99 R 2 CR 0 09 9 0 0 10000500000 2 gt 2 0 9209 o 999 929 999 275 o 2 929 209 o 2 o 225 040 2009
58. 000P 350V 2 bx age T sk 298 seis 7 0 00 8 4 t GND AN pos 18 Qu B x 5 35 I c 4 3 R 5 LS 4 C908 8 A7uF 50V 0837 CM902 E 9 2 4 0 2 0 1UF 4 843 gt ME p 88 1 7 I LE901 if 1 ammi oe J Ee 4 116945 4 AN I 100uF 16 I lt WIRELESS OPTION 938 DOK R942 1000UF 16VK 0940 A LW RL104F THSOt R943 220 GND 1 5 Ohm 6 WIRELESS OPTION CM9301 I AN R344 0 1UF XCAP 560 1 zo 8900 TT R948 4 5 1 5 1 21 E GND ie 8 T9 2 1UF 50V 4K E rou VR901 Feat AN ES EJ pp 1468 85 L a 070481 Se 3 5 A D VCC 8 5 3 Co 3 BAL 250 8 m 902 page 1 ao 4 512 STR W6253 cul Ll n ol t 50 4 a Connector 8 m Tas S OCP FM GND 9 gt in in s mume ER 5 0951 24 Tes I pi T 3 7 5 T si 1 ola 3 10 680UF 50y 6BOUF 50V THT 2 90 i o ST Az GND m as i Sa 5 1 1 BR BL s 11 3 gc TIT BK WH EST 292 GND i z lt 1 B 1UF 50V R958 JE Peale I s
59. 1 000 7 i g H 75 Bk B ass gg B g al yl alg x S2 5 Sej 8 aja 3 5 8 8 B i TK 100 10 8148 100 BESET OPTION T LES 5 EE EE ELEC 1 23 2 alale 8 T H i 8 8 __ B x Re 9 ax 5 s 88 g 9 3 8235381 34221351 5 81817178 815 8 PTs 10404 RESET OPTION ses ON BOARD TUNER USING 2007 SANYO CHIP ot use 828 1 eee RE X 00 12102 49429244 90 TPS CAT LIE 41444446 112 alala 8 1 173 PLL CLK 1 3 3 1 2 12222222 Begg 8888 8 afset P70 INTO TOLCP ANB 3 P32 UTXI mosce 818 100 2 00 ST
60. 1331 25 po 01 gt PART 07 11 723 GND 104 2 0 1 2007 11 30 A B C D E F G H J K L M N R s T LGE Internal Use Only 2 59 2 60 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 7 MIC CIRCUIT DIAGRAM 42V PTB L Sl VCC50 lt BEL USBN lt C2F1 47 47 TC2Ad BA3308 gt a gt 3 lt gt x 0 1 Dt 2 5V 3 12v 4 eo DGND 5 X 8204 2 2 H2E9 PTB L 6 5 3 9K 90 10K 40K 207 104 25 C2D1 DVD SECTION a 4 C2E6 D V E GND 9 10 16V sul 2 a mote 8 C201 MIC_DET 40 SEA K 820 1K 4 7 50V R201 2 euF 516 MIC2 11 lt AW MIC SIG MIC1 12 ANY th 2 7 330nF 310 10 16V C204 0209 3 3K SH 10K 205 2 1K 6203 cora 22 50 22 50 8 lt MICOM SECTION gt C205 L20 104 GND e Mrc HH HT303 HT353 MIC 07 11 23 jY3B8558901 46 2007 11 30 D
61. 5 5 8 8 5 5 1 123121 1 121601 12 12 121 1 2 2 216 5 8 6 216 216 6 6 6 gt gt 5 Warm 35 i I UNLESS OTHERWISE SPECIFIED l 2 G H I J K L M N P Q Copyright 2008 LG Electronics Inc All right reserved 2 57 Only for training and service purposes 2 58 HT303 HT353 0 07 11 23 EBY38558901 4 2007 11 30 LGE Internal Use Only 6 ANP CIRCUIT DIAGRAM 12 Modulstion AMP SECTION SE b 5 U n 11 2223 MICOM SECTION 000 o r dg AMp_PDN tz 25 818 2 8 5 5 3 AMP_PROTECT BIRDS s ESR FSS _ T2 10 AMP_SD Rex 10702 STA518 515 8 sS S 52 D
62. 5 HSYN VSYN input 6 C0 GPIO 6 1 GPIO8 2 MS_BS set A 3 SD_CLK set A 4 ASDATA2 5 ACLK LGE Internal Use Only 2 30 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Description Audio Mute 7 8 1 SOS 2 MS DO set A 3 SD CMD set A 4 ASDATA1 5 L 7 1 2 6 C me GPIO10 SD_CLK set B 3 SD_DO setA 4 ASDATAO 5 ALRCK 6 output C C GPIO10 8 ru 1 GPIO11 2 SD set B 3 MS BS set B GPIO11 4 Audio Mute 5 DE output 1 SEDI output GPIO12 2 GPIO12 2 GPIO13 3 ALRCK 4 Audio Mute 5 YUVCLK GPIO13 SD DO set B Copyright 2008 LG Electronics Inc All right reserved 2 31 LGE Internal Use Only Only for training and service purposes 2 1C401 MOTOR DRIVER PIN CONFIGURATION
63. 5V YES C Resolder or Replace RC2 Check RM circuit Copyright 2008 LG Electronics Inc All right reserved 2 3 LGE Internal Use Only Only for training and service purposes 4 System operation flow C POWER ON 1 Initializes SERVO DSP amp RISC registers 2 Write RISC code to SDRAM 3 Reset RISC Show LOGO YES Tray closed Tray close to closed position SLED atinner YES side SLED moves to inner position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure Recieve OPEN CLOSE Key 1 Execute Pressed Key amp IR Key 2 System operation routine loop r 1 Stop Playback amp Open Tray 2 Display tray open message amp LOGO Receive CLOSE Key LGE Internal Use Only 2 4 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 Test amp debug flow TEST gt YES Check the AC voltage Power PCBA 110V or 220V Check the POWER PART YES Switch on the Power PCBA YES Are the DC Voltage outputs OK 12V 5 6V 3 5V 5 7 34V Check the POWER PART YES Are 3 5V and 5V DC outputs normal on main PCBA Check the regulators or diode YES Update
64. 6403 EE x He w aax 3448401 84 isf we 3 S ald aje 6 b 2 72 44 ov vccaa 4 oo 5 xe 318 Eve L104 EEP_DAT 321 al 12 24 2 g me c Seco Pi 581 eres E 14 4 21904 s do 6315 8355 98 7 1 Jo 8 6316 578 90 2 0402 79421 al DAD 90 L 5VA MICOM E 7 BVA MICOM 96 4 ooo r7 RCU IN TP423 POULIN KEY MOTOR BN 37 5 Te4gg Pu 16 4 KEY 7 3 VOL DN 3 bad L TP197 VCC50 voL 0N AED 8 Seam 1 42V 10 5 PN103 FL m D FL m 47 16 0 10 8 2 15315151 51618158 815 en 44 VFL g L 3 2 Ya 5 g ba bel glo lela 5 12 15 8 s 5 lt POWER gt HT303 HT353 1 2 SMD 2012 TYPE MICOM 07 11 23 A EBY38558901 3 5 2007 11 30 D E F G H J K L M N Q R s T LGE Internal Use Only 2 55 2 56 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 CIRCUIT DIAGRAM I O SECT ON gt gt
65. 818 Sle see 5 Su 5 1 00 Jesu PETS 859 50 8 8 v s m Ss 5 0 10 SPI CLK L 8 tHE SPIE Soe MICOM PART ul ul TO EMULATOR vest er 96 21 gle gis 8 11 per 845 BTE du 1504 8 8 1 Do 1058 CA USBN 8 88 8 85 58 85455 81 18 85 8 8 8 8 8 a ss ss s 5 s s s z s al S S 5 s ses w O O O ah on du m o m 2085 1 58855888 050135888353808 45288858 5 56885 5559 29855 588 48995585 5298 55282148 27 55 52252554555221224514 285566 d 599 2338 13 9 555 ga 96 ms I O PART 10 AFA 8 VREF 855 ap PR 518 2 D 8 8 3 DACVDDC 2 sas I lt 5 0 RFC vstu epro13 94 TROLOSE 5 eee 4 3 8 sPo1F GP1012 23 n 8 Eee x W 5 ore x x HSTR GPI044 82 4 8 my petje 8 sa ik 8 SERVO 6 ore LR GPIOi0 91 e DD PART 7 90 0537 9 i AVDD18 2 00018 nima 71 PICKSEL L B 89 8 A 00334 UD GPTO9 0 Dick pz 505 30 9 rar 88 TROPEN Din 1850 C3 ADDATA 401510 epro7 cKe 87 San PART 50 lt DMSO DADATAL DADATAO TPN xs Te 2
66. 9 Scan enable Active High In normal operation it should be LOW or not connected Internal pull down resistor TEST MODES3 100 Test mode selection pin 3 In normal operation it should be LOW or not connected Internal pull down resistor All inputs and bi directional inputs are 5 Volt tolerant The corresponding pins can be connected to the buses that can swing between OV and 5V The output only pins are not 5V tolerant and the buses they are connected to can swing only between 0V and 3 3V LGE Internal Use Only 2 44 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes WIRING DIAGRAM JK203 JK202 JK201 TU101 JK204 JK702 COMPONENT CV JACK HMINAI AUX JACK DC JACK MAL p 23PIN x NZ a 14 14PIN L CABLE1 SM a 1 CLOCK DISPLAY FRONT PCB 12PIN MIC amp USB PCB MIC JACK1 2 PORTABLE IN PN202 USB JACK EBY38558901 7 2007 11 30 Copyright 2008 LG Electronics Inc All right reserved 2 45 2 46 LGE Internal Use Only Only for training and service purposes OVERALL BLOCK DIAGRAM
67. 9 2 o o o o 2 o 555555565 0 oor 0 550 5959 202020202020 0 9909 0 0000049 9 0 05020202020050 06060 9650050505000 92 Co o 090060600000000909 9 9 52922 0259020 020202020202000 52929295 09 0202020202020200 6 925705050950590 9 0 2 OO OC 90 909 CK x OOK OOO 9 929 OO 567 C526 050502 0507 50 X5 920 920 920 2 9 920 4 em 2o 08 22 9 2 oO o 0 9 9 o 999999 2020 029 OO 222 o 509 2 2 2 0 o o 2 5 2 99 o OoOo o o 97700 50 040 02050 950 lo 029 o 0 08 9 00000 0 00050000 Ox 9 20 990 gt 00000000
68. 96kHz x 64 fixed DMIX LRCK PCM Word clock left right clock output of down mix signal Word clock rate is 96kHz fixed DMIX SDOUT PCM serial data output of down mix signal PWM Audio Output PWM1 P Positive PWM output of channel 1 PWM1 M PWM2 P PWM2 M PWM3 PWM3 M 4 P PWM4 M 5 PWM5 M PWM6 P PWM6 M PWM7 P PWM7 M PWMB8 P PWMB8 M PWM HP L P PWM HP L M PWM HP RP PWM HP R M PWM SWL P PWM SWL M Negative PWM output of subwoofer line output System Control Interface SPI I2C 84 Host interface mode SPI 120 selector Assert HIGH for SPI mode De assert LOW for 12 mode Internal pull down resistor SO SDA 78 SO for SPI mode SDA for 12 mode Negative PWM output of channel 1 Positive PWM output of channel 2 Negative PWM output of channel 2 Positive PWM output of channel 3 Negative PWM output of channel 3 Positive PWM output of channel 4 Negative PWM output of channel 4 Positive PWM output of channel 5 Negative PWM output of channel 5 Positive PWM output of channel 6 Negative PWM output of channel 6 Positive PWM output of channel 7 Negative PWM output of channel 7 Positive PWM output of channel 8 Negative PWM output of channel 8 Positive PWM output of headphone left channel Negative PWM output of headphone left channel Positive PWM output of headphon
69. Check SMPS LGE Internal Use Only oscillator o X101 YES Check if IC101 Pin5 is high YES Check high bV YES Check if IC101 Pin49 is high Replace IC101 if C101 Pin9 36 59 NO NO NO NO 2 12 Does Aux Scart opt and FM 87 appear at FLD OK Refer to SMPS Refer to oscillator circuit Check IC101 reset waveform Check 3 3V line Check power section circuit Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389 L main clock is at 27MHz X501 9 0 02 13 59 47 58 ns Div nc At 37 1 ns 26 97 MHz 2 1 V 005 2 GS s 3 1 V 10 2 DC 1 48 V 4 2 00 STOPPED FIG 1 1 2 MT1389 L reset is high active Power Cord in 9 0 02 7 87 27 T T fuu 45 48 55 62 Ncn open drain pu11 up BV E 1M Pin 20 Nch open drainiSIMALINK pull up 3 3V PAINAA 2 08 22P 59 Pin 67 58 9 8304 5 yoo Download pin pin 37 38 39 53 66 59 P23 INT cT T 9i EN P22 1NT 13 EH raini 1 101 pat IN Dn 52 Sora ra s
70. DD DVDD 80 46 HP L P DVSS L 81 45 PWM_HP_L_M 5 ADO 82 44 lO VSS CS I2C AD2 83 43 DVSS SPI I2C 84 42 DVDD vss 85 41 HP R P XIN 86 40 HP RM XOUT 87 39 IO VDD DMIX LRCK 88 38 IO VSS DMIX BCK 89 37 PWM SWL P DMIX SDOUT 90 36 PWM SWL M DVDD 91 35 DVSS DVSS 92 34 DVDD DMIX MCLK 93 33 SDIN 10 VDD 94 32 MIC LRCK lo_vss 95 31 RESET 96 30 MIC_MCLK TEST_MODE1 97 29 IO VDD TEST MODE2 98 28 IO VSS SCAN ENA 99 27 EXT MUTE TEST 100 26 SSDIN3 4 L S 2288882128 321112012 48222 3 4002 4 2 2 2 2 o o 29 gd Z BLOCK DIAGRAM Serial Audio Output interface MBCK MLRCK Input MSDIN 0 3 amp Output SBCK SLRCK SSDIN 0 3 Sample Rate Converter MIC_MCLK MIC Input MIC_LRCK MIG_SDIN Processor SO SDA SCK SCL SII2C_AD0 CS I2C AD2 EXT MUTE Bass Manager Automatic Gain Limiter Internal Controls Internal Clock Internal Reset Reset amp Power Down Crystal Oscillator XIN Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes RESET 2 41 Power Supply 2888558 amp lt lt gt 4242660 IO 55 Output Audio Ou
71. EW 9 0 046 0 0 0 O O O O O O 0 0 0 0 0 0 0 O ON O O O O O O O O 9 9 9 2055009 950052500 9 99 0 90 9 99 999 0000000 0 0 0 0 0 9000000 a OO OA o 20 Doro 0 0 0 9 9 0 O0 0 909 70200 929990000 6200000900 200000000 9909 0909090 o 0 0000 55000 0 0 20 0 0 0 0 02000 OC 0 0 0 0 0 0 92020 9 9 O O O 9 0 0 0 0 O O O O O O O O 0 0 O O O70 0 00 0 o o 2 o 20 529 0509595959 0 29902 9 950095009505909500959095000092009 95925909 9 90020202 POOR 2020 eX 020200 92020 9920 9202070 00050 9592072 0000009 0000000900000 9 OCCUR 979 9 9 o TC o ReorRight o 2 2 2 9500 99 0 900 o 25 5 0200 00500 9 59 o 0909 GND 2 2 C7H5 2 9 9 9 9070 9202020 0770 929 9 9 992929 0 0 0 0 0 0 SOS GND 9 SP CTL MAIKC 5 Rear Left OO Doo 2 0 0 0 0 0 0 0 000 999 o 9 9909 TV WIRELESS GND 0060000 piis cA 20 900 oo 6 G9 DES Gud s Xo o o 13 0 0 GND 9 0 0 0 0 0 9 CES 197 2 9909 5559 X X 070 XO oo
72. IE 5848 w 8 4 A724 VCCSign GND SUB m C736 35 VCCSign OUTeB 0 0 12 288 2 U x70 Ra gta 34 19 58 58 740 vss a vss veces ie T GND IN2B GND2B L707 1 1 104 GND2A me lt qe lt obs gt 215 E VCC2 STE Ree S72 8 _ y 470 63 OUT2A 7 25 8 cna oil E TH WAR OUT2A s SB 8 idecoupling FAULT 00118 5 5 1104 4 220710 amp 10 18 8 2 8 ASAP close to IC TRISTATE QUTAB TP709 Ne neo eae WRON 4512 CONFIG 3 Ft aS 5 WF O 00 I PM 5 yoo OUT4A x s J 58 amp 58 7 a 3 89 x a d d 4 5 5 i 5 i GND Reg STE zs abies 558 2889 mer 12708 g3 moo 701 gy 5 st B BE 2 Ba a ue Do 58 065 4 u 58 4 Vi 8 oS eu 8 5 2 m pi TP702 pat AMP PROTECT 17 4 WF 0 S ZO 5 7 6 ale ne TP713 ct np FL 0 lon A 2 9 7 10 559 P7 FAt_O io 56 FAY 1 703 STA518 515 0 10 0065 5 O FR nx IC704 33312042 36 i 9 als PATO VCCSign GND SUB Sse NR ROR RR M ossia D mao E2 R747
73. K 44 Master Clock Input Output Clock source for the ADC s delta sigma modulators DGND 45 Digital Ground Input Ground reference for the internal digital section 46 Digital Power Input Positive power for the internal digital section INT 47 Interrupt Output Indicates an interrupt condition has occurred OVFL 48 Overflow Output Indicates an ADC overflow condition is present LGE Internal Use Only 2 40 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 1C704 PWM PIN CONFIGURATION E 2 g i 9 z 2 2 8 a 2 zi a 8 27 22 8228222 5252222 a a im 2 5 858 a kh 5 Qa Dow 8 OVERLOAD 76 50 IO_VSS EPD_ENA 77 49 PWM1_P SO SDA 78 48 PWM1_M SCK SCL 79 47 IO_V
74. K MECHANISM EXPLODED 12 PACKING ACCESSORY SPEAKER SECTION drug Re ERE EUR d a ama diu e un O SECTION 4 MECHANISM DP 12TV O SECTION 5 REPLACEMENT PARTS LIST Copyright 2008 LG Electronics Inc All right reserved 1 1 LGE Internal Use Only Only for training and service purposes SECTION 1 GENERAL SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK UP 1 Notes for transport and storage 1 The pick up should always be left in its conductive bag until immediately prior to use 2 The pick up should never be subjected to external pressure or impact Storage in conductive bag Drop impact 2 Repair notes 1 The pick up incorporates a strong magnet and so should never be brought close to magnetic materials 2 The pick up should always be handled correctly and carefully taking care to avoid external pressure and impact If it is subjected to strong pressure or impact the result may be an operational malfunction and or damage to the printed circuit board 3 Each and every pick up is already individually adjusted to a high degree of precision and for that reason the adjustment point and installation screws should absolutely never be touched 4 Laser beams may damage the eyes Absolutely never permit laser beams t
75. Out 4mA InOut 4mA InOut 4mA InOut 4 DRAM data 5 InOut 4 DRAM data 6 InOut 4mA InOut 4mA PD Data mask 0 InOut 4mA InOut 4mA InOut 4 DRAM data 13 DRAM data 1 DRAM data 2 DRAM data 3 DRAM data 4 DRAM data 7 DRAM data 15 DRAM data 14 Copyright 2008 LG Electronics Inc All right reserved 2 29 LGE Internal Use Only Only for training and service purposes Type Description InOut 4 DRAM data 12 InOut 4mA InOut 4mA InOut 4mA InOut 4 DRAM data 8 DRAM data 11 DRAM data 10 DRAM data 9 InOut 4mA PD Data mask 1 InOut 4 PD Dram clock InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD Output 4mA PD Output 1 4mA PD DRAM column address strobe active low Output 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD InOut 4mA PD DRAM address bit 11 DRAM address 9 DRAM address 8 DRAM address 7 DRAM address 6 DRAM address 5 DRAM address 4 DRAM Write enable active low DRAM row address strobe active low DRAM bank address 0 DRAM bank address 1 DRAM address 10 DRAM address 0 DRAM address 1 DRAM address 2 DRAM address 3 1 GPIO 7 2 Dram Clock Enable InOut 3 MS_CLK set A 4mA PD 4 Audio Mute
76. P NO AFN37064424 LG MAY 2008 2 8 6 Website http biz lgservice com LG DVD CD RECEIVER LH T3039X LH T3530X MODELS LH T3039X LH T3039 SH33SU S W LH T3530X LH T3530 SH33SD S W CONTENTS O SECTION 1 GENERAL SERVICING PRECAUTIONS a siiis cusses atm tm on ee ee aoe ee ESD PRECAUTIONS dean eee eaten Sowa dae wa Pee ea us Qar e SERVICE INFORMATION FOR HOW TO UPDATE AUDIO DVD PROGRAMS SPECIFICATIONS ote rr tace unterm repu Res o E e m d ganas O SECTION 2 ELECTRICAL PART TROUBLESHOOTING GUIDE 1 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING INTERNAL BLOCK DIAGRAM OF ICs 2 1 WIRING DIAGRAM issue memes pon lu maa Sead we e OVERALL BLOCK DIAGRAM CIRCUIT DIAGRAMS PRINTED CIRCUIT DIARGAMS O SECTION 3 EXPLODED VIEWS e CABINET AND MAIN FRAME SECTION liec RR REIR REIS e DEC
77. SLED 5 SPINDLE TRACK SS ICAO 4 FRONT R i LN ssedsd FEAR 5 FRONT gt ONT L REAR L Y CENTER 5 1 WOOFER A gu 5 y 5181 8 8188 6965_CLK 6965 STB vu 158023 2216965 VFD DRIVER 2 8 CLOCK VFD PICK U SLED MOTOR EBY38558901 7 2007 11 30 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes CIRCUIT DIAGRAMS 1 SMPS POWER CIRCUIT DIAGRAM
78. ain 8 channel audio User can select the master slave mode of this signal Schmitt Trigger input MSDIN 3 0 15 16 17 18 PCM serial data input of main 8 channel audio Schmitt Trigger input SBCK 19 PCM bit clock input output of 8 channel audio User can select the master slave mode of this signal Schmitt Trigger input PCM word clock left right clock input output of sub 8 channel audio User can select the master slave mode of this signal Schmitt Trigger input SSDIN 3 0 LGE Internal Use Only 23 24 25 26 PCM serial data input of sub channel audio User can set this sub channel data input pins to PCM serial data output pins See the Control Register Description part Schmitt Trigger input 2 42 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes MIC_MCLK Main clock for external microphone input A DC Clock frequency can be selected between 6 144MHz 12 288MHz and 24 576MHz BCK PCM bit clock input output of external microphone Bit clock frequency is 3 072MHz 48kHz x 64 fixed LRCK PCM Word clock left right clock input output of external microphone Word clock rate is 48kHz fixed MIC SDIN PCM serial data input of external microphone Schmitt Trigger input DMIX MCLK Main clock for external down mix line output D AC DMIX BCK PCM bit clock output of down mix signal Bit clock frequency is 6 144MHz
79. e TSTI 1800 _ 49 yp 100 400k TSTO TSTO 4 TSTO 100 7906 AIN6B c Right Analog Input 6 See Note 2 MICBIAS e gt Nv gt 47uF AGND FILT AGND 12 2 5 IB a7 uF 0 1 pF AFILTA 2 2nF 2 2nF AGND AFILTB DGND Capacitors must be C0G or equivalent Copyright 2008 LG Electronics Inc All right reserved 2 39 LGE Internal Use Only Only for training and service purposes PIN DESCRIPTION Serial ControlData Input Output SDA is a data I O in IC Mode CDOUT is the output data line for SDA CDOUT 1 the control port interface in SPI Mode SCL CCLK 2 Serial ControlPort Clock Input Serial clock for the serial control port Address IC ntrolPort Select SPI Input ADO is a chip address in IC Mode ADO CS 3 CS is the chip select signal for SPI format AD1 CDIN 4 Address Bit1 IC Ser ial ControlData Input SPI Input AD1 is a chip address pin in IC Mode CDIN is the input data line for the control port interface in SPI Mode VLC 5 ControlPort Power Input Determines the required signal level for the control port interface Refer to the Recommended Operating Conditions for appropriate voltages RESET 6 Reset Input The device enters a low power mode when thi
80. e right channel Negative PWM output of headphone right channel Positive PWM output of subwoofer line output Copyright 2008 LG Electronics Inc All right reserved 2 43 LGE Internal Use Only Only for training and service purposes SCK for SPI mode SCL for 122 mode Schmitt Trigger input CS I2C AD2 SCK SCL 79 82 EXT SI for SPI mode or Slave Address 0 for I2C mode Schmitt Trigger input Internal pull down resistor Chip selector CS for SPI mode or Slave Address 2 for 120 mode Schmitt Trigger input Internal pull down resistor Special Control Interface External mute control input Active High Assert HIGH to mute audio output Internal pull down resistor OVERLOAD Power stage overload indication input Polarity is programmable Schmitt Trigger input When OVERLOAD is asserted all PWM audio outputs go to LOW That shutdown process is programmable Internal pull down resistor EPD ENA TEST 97 External amplifier power device enable output Active High Test Mode Test mode selection pin 1 In normal operation it should be LOW or not connected Internal pull down resistor TEST MODE2 98 Test mode selection pin 2 In normal operation it should be LOW or not connected Internal pull down resistor SCAN ENA 9
81. er 3 3V power pin for audio DAC circuitry ADACVDD2 Analog Power 3 3V power pin for audio DAC circuitry AVDD18_1 Analog Power Analog 1 8V power AGND18 DVDD18 LGE Internal Use Only Analog Ground Analog Ground General Power Ground 7 Power 2 28 1 8V power pin for internal digital circuitry Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Pin Main Description 79 DVSS18 Ground 1 8V Ground pin for internal digital circuitry 50 68 84 DVDD33 Power 3 3V power pin for internal digital circuitry 60 DVSS Ground 3 3V Ground pin for internal digital circuitry Micro Controller Flash I nterface and GPIO 12 InOut 1 General purpose IO 3 8mA SR 2 Microcontroller external interrupt 1 PD SMT InOut 4 PD General purpose IO 4 InOut 4 PD General purpose IO 6 InOut 8mA SR Serial Flash Chip Select PU SMT InOut 8mA SR Serial Flash Dout PD SMT InOut 8mA SR Serial Flash Din PU SMT InOut 8mA SR Serial Flash Clock PD SMT InOut 1 Microcontroller port 1 6 8mA SR 2 126 clock pin PU SMT InOut 1 Microcontroller port 1 7 4mA SR 2 I2C data pin PU SMT Input PD SMT Microcontroller ICE mode enable Input PU SMT Power on reset input active low Input SMT IR control signal input Dram Interface 37 Sorted by position InOut 4 DRAM data 0 InOut 4mA In
82. eror PEA 00 lt 53 pio s00 60 E 521 00 8417 00 sH risio _ 1 i 1 1 m it 188 kS s ii 2 DC 1 48 V n 2 v 00 STOPPED FIG 1 2 3 4 4 5 28 sSssss sss ES 10501 Copyright 2008 LG Electronics Inc All right reserved 2 13 LGE Internal Use Only Only for training and service purposes 3 Flash R W enable signal during download Downloading 82 Reading Floppy Disk Urive 17 27 47 pss I 2 gt o T 190 an CN501 ik E d L Lo 1 4 10503 SST25VF0808 5 cet e 7 Se Lw w 554 527 41 52 10K 5 p 0 dul 1 02 At 328 5 ns 1 4 3 8441 MHz 1 48 V ds 4 2 V STOPPED FIG 1 4 2 SDRAM CLOCK 1 MT1389 L main clock is at 27MHz X501 13 46 52 93MHz
83. gnal waveform x Copyright 2008 LG Electronics Inc All right reserved 2 9 LGE Internal Use Only Only for training and service purposes PWM IC received correct data stream NO NO Check connection between gt 1704 LRCK ADATAO Normal Audio output when disc playback NO Check the related circuit of gt PWM Check Audio out Pins 55 59 61 62 68 71 75 Normal PWM IC out IC704 Check Digital Amp circuit C TEST END 1C702 1 703 LGE Internal Use Only 2 10 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 6 AMP Protection PROTECTION appears on the FLD YES After unplug power cord connect again YES Power on YES PROTECTION appears continuously on the FLD NO Is the 12101 pin54 LOW signal 0V NO Replace IC101 YES Is the Q701 and Q702 normal NO Replace the Q701 and Q702 YES C Replace ST AMP IC IC702 and IC703 Copyright 2008 LG Electronics Inc All right reserved 2 11 LGE Internal Use Only Only for training and service purposes 7 AUDIO p COM Circuit DVD amp AMP C Power On 2 Loading appear at FLD if DVD an audi micom insert is OK Check Power Check DVD Module YES
84. he Guide Up Down as Fig B 6 Belt Loading Fig 4 4 Note Put the Base Main on original position Top Side 7 Gear pulley Fig 4 4 1 Unlock the Locking Tab L4 in direction of arrow B and then separate the Gear Pulley from the Base Main Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 5 GUIDE UP DOWN S4 UP DOWN FRAME ASSEMBLY 8 Gear Loading Fig 4 4 9 Guide Up Down Fig 4 4 1 Move the Guide Up Down in direction of arrow A as Fig A 2 Push the Locking Tab L5 down and then lift up the Guide Up Down to separate it from the Base Main Note When reassembling place the Guide Up Down as Fig C and move it in direction arrow B until it is locked by the Locking Tab L5 And confirm the Guide Up Down as Fig A 10 PWB Assembly Loading Fig 4 4 Note Put the Base Main face down Bottom Side 1 Release 1 Screws S5 2 Unlock the Loading Motor C2 from the Hook H1 on the Base Main 3 Unlock 2 Locking Tabs L6 and separate the PWB Assembly Loading from the Base Main 11 Base Main Fig 4 4 LGE Internal Use Only DECK MECHANISM EXPLODED VIEW DP 12TV Only for training and service purposes Copyright 2008 LG Electronics Inc All right reserved 4 6 LGE Internal Use Only
85. i Q Copyright O 2008 LG Electronics Inc All right reserved 2 19 LGE Internal Use Only Only for training and service purposes 8 FOCUS ON WAVEFORMS 18 Dec 82 lt lt lt coo Ex Sx Ex Ex 18 Dec 82 6 28 35 2 180 kS s 2 DC 1 48 V STOPPED FIG 8 1 DVD A Eres lt lt lt lt x Ex ex Ex LGE Internal Use Only AT 180 kS s 2 DC 1 48 V STOPPED FIG 8 2 CD 2 20 4 61 mm m 8 gt 0 486 5878 96 8 VREF DACVDDC 55 vstu ep1013 94 spoir eProte 33 ICKSELA 1 HsTR GPI044 32 LR GP1040 84 70 501 20 9 0 10 UD GP108 89 e 5 88 7 87 ADOATA 17 1002 18 19 Duo 20 21 10 22 STBY 23 TRO 24 2 Foo 25 TRIN 26 27 USN 28 t E 29 Hs 80 30 R506 5 1K 31 MDI1 MDI2 1001 1002 AVDD33 2 5 O 1 DMO Po MT 13589 TRAY OPEN TRAY CLOSE TRO F00 FG GPIO2 USB DP USB_DM USB V33 USB GND
86. is separated from the 1 1 1 Plate Clamp Base Main completely 1 Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp 1 1 2 Magnet Clamp 1 1 3 Clamp Upper Copyright 2008 LG Electronics Inc All right reserved 4 3 LGE Internal Use Only Only for training and service purposes RUBBER DAMPER Distinguish upper and lower sides Assemble with care RUBBER DAMPER Distinguish upper and RUBBER DAMPER lower sides X Assemble with care D 52 82 SZ N RUBBER DAMPER GEAR RACK SPINDLE MOTOR ASSEMBLY 3 Base Assembly Sled Fig 4 3 3 3 Gear Rack 1 Release 4 Screw S2 1 Release the Scerw S3 2 Disconnect the FFC Connector C1 3 1 Gear Feed 4 Rubber Rear Fig 4 3 3 2 Gear Middle LGE Internal Use Only 4 4 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes GEAR LOADING GEAR PULLEY SCREW INSERTION TORGUE CONTROL 800gf DOWN 5 Frame Assembly Up Down Fig 4 4 Note Put the Base Main face down Bottom Side 1 Release the screw S4 2 Unlock the Locking Tab L3 in direction of arrow and then lift up the Frame Assembly Up Down to separate it from the Base Main Note When reassembling move the Guide Up Down in direction of arrow C until it is positioned as Fig C When reassembling insert A portion of the Frame Assembly Up Down in the B portion of t
87. ls 2 Sw 2 STOPPED FIG 3 3 2 15 Only for training and service purposes zm 3 0 40 ss 10404 en 4866908 Foso 4 VIC 2 Pi 3 2 VINTK 51014 4 5 REGO i RESET TROPEN Du 5 FD TROLOSE 7 REY 8 ap 4 90 LOAD 3 vorm veco LOAD 10 votat vece at vos VOLD a 2 vos voo F VOTK m vorct vore LGE Internal Use Only 4 SLED CONTROL RELATED SIGNAL NO DISC CONDITION 9 0 02 16 18 43 88 aloe R Eres 1 1004 2 5 181 pop 1 88 V 19 AVDD33 2 iP 1 20 Wo B Eres 2 21 2 I m 2 22 TRAY OPEN 23 spay CLOSE i t HH 24 al C50 1 Eres 3 25 4 4 2 2 08 V T mj m MI 1355 eee ere USB_DP 1 28 4
88. ly for training and service purposes BLOCK DIAGRAM 3 3V to 5V 3 3V to 5V 10 0 1 uF 0 1 uF 0 1 uF uF INE p Z VD VA VA 1 8V 4 3 3 uF to 5V VLS PGAOUTA gt 3 3 PGAOUTB m Digital Audio SCLK AIN1A 16 Left Analog Input 1 Capture LRCK 1800 pF 410pF 100 100 k lt SDOUT 4 100 k AIN1B Right Analog Input 1 4 Left Analog Input 2 OVFL 1800 100 100k RESET Micro 100 I e SCL CCLK 1800 pF Controller AIN2B E Right Analog Input 2 lt gt _ AIN3A Left Analog Input 3 1800 pF 100 100 k iis 1800 ee 100 1005 2k 2k AIN3B Right Analog Input 3 See 1 1 8V ig VLC AIN4A MICIN1 Left Analog Input 4 to 5V L o4 uF 1800pF 100 400k NS 100 100k AINAB MICIN2 Right Analog Input 4 AIN5A Left Analog Input 5 NC 1800 100 Note 1 Resistors are required E 100k for IC control port operation NC e NC 1800pF 998 e NC AIN5B c Right Analog Input 5 Note 2 The value of R is 2 3 dictated by the microphone AINA Left Analog Input carteridg
89. o N 00 0 0000009000997 0205 0592 9 299 X K o X X 29 9 9 9 o 0 2 0 9 9 9 9 0 9 9 9020 o Sub Woofer OX 5 59 2 9 9 000 OOOO 9 599 5 o Oo o o o 1C 5566 2 52 O O O O o 5929 929292929 90009 gt 20 2 555 9 02020 9 280 222 24 2 2 90 5559 0909090 o o 229 2 99 9 9 020 99 09 0 20 OX 929 SON A 22 0909 o o o 2 2 9 gt 2 OOO 2220 OOOO K 979797070009 2 9 000 lt 9 OO o 00007000 0 0070 9 o o O 2 o 2 9 950 X 5554 o 14 2 lt 90 S 0 0 Xo o Front I ght 02000000 200000 2 o 22 2 9 o o O 1 o di o 0 o o KS 2020 222
90. o enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged NEVER look directly at the laser beam and don t allow contact with fingers or other exposed skin 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning the lens surface therefore a cotton swab should be used taking care not to distort lens Pressure Conductive Sheet 6 Never attempt to disassemble the pick up Spring has excess pressure If the lens is extremely dirty apply isopropyl alcohol to the cotton swab Do not use any other liquid cleaners because they will damage the lens Take care not to use too much of this alcohol on the swab and do not allow the alcohol to get inside the pick up LGE Internal Use Only 1 2 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1 Preparations 1 Compact disc players incorporate a great many ICs as well as the pick up laser diode These components are sensitive to and easily affected by static electricity If such static electricity is high voltage components can be damaged and for that reason components should be handled with care 2 The pick up is composed of many optical components and other high precision
91. of typical ESD devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed for potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ESD 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 grounded tip soldering iron to solder or unsolder ESD devices 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive materials 7 Immediately before
92. pt control lt gt I IR PLA Standby control 4 ROM correct CF I 7 Flash 55 gt lt gt 500 gt Bus interface SIO1 lt gt gt Port 0 gt gt 0 4 0 Port 1 B register Timer 1 lt 4 5 Port 2 lt C register Timer 4 5 lt gt Port 7 gt ALU 5 K gt 8 4 Timer 6 lt gt gt ADC lt PSW INTO to INT7 gt Timers Noise filter d Base timer 4 gt Port 3 4 PWM2 3 gt 4 Port lt Stack pointer lt gt UART1 Watchdog timer 4 4 UART2 On chip Debugger Copyright 2008 LG Electronics Inc All right reserved 2 35 Only for training and service purposes LGE Internal Use Only PIN DESCRIPTION Pin Name Description Option 1 Vss2 Power supply Vss3 1 2 Power supply pin No Vpp3 Port 0 8 bit I O port Yes P00 to P07 I O specifiable in 4 bit units Pull up resistor can be turned on and off in 4 bit units HOLD release input Port 0 interrupt input Shared Pins P05 Clock output system clock can selected from sub clock Timer 6 toggle output P07 Timer 7 toggle output Port 1 8 bit I O port Yes P10 to P17 I O specifiable in 1 bit units Pull up resistor can be turned on and off in 1 bit units Pin functions P10
93. rn on Check laser circuit Check focus circuit Check disc Does it play NO Check tracking servo circuit Does it output audio NO Check audio circuit C 2 Copyright 2008 LG Electronics Inc All right reserved 2 1 LGE Internal Use Only Only for training and service purposes 2 Front circuit 1 2 POWER ON E Red LED turn off Is the Digitron on correctly Check if all buttons are ok Check if the remote control is ok YES 1 Front B D ok LGE Internal Use Only NO NO NO Check if PN103 is ok Check if the front power is ok Check if RC2 is ok 2 2 NO NO NO Reconnect it Refer to SMPS part Check pattern and resoldering Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 3 Front circuit 2 2 Check if the NO power part of the Refer to power SMPS front is ok YES Check if NO R345 R350 ok YES C Refer to MICOM circuit Replace R345 R350 Check if the power NO part of the front is ok Refer to power SMPS Check if the remote NO control waveform of PN301 Refer to MICOM circuit pin5 is ok NO Check if RC2 voltage is ok
94. rnal transistor collector 6 FWD Tray driver forward input 7 REV Tray driver reverse input 8 1 for pre drive block and power block of sled and tray 9 VOTR Tray driver output 10 VOTR Tray driver output 11 VOSL Sled driver output 12 VOSL Sled driver output 13 VOFC Focus driver output 14 VOFC Focus driver output 15 VOTK Tracking driver output 16 VOTK Tracking driver output 17 VOLD Spindle driver output 18 VOLD Spindle driver output 19 Vcc2 Vcc for power block of spindle tracking and focus 20 VCCD Inpu for voltage detection 21 VCTL Speed control input of tray driver 22 GND Ground 23 VINLD Input for spindle driver 24 RSET Output for voltage detection 25 TRB_2 Connect to external transistor base 26 VINTK Input for tracking driver 27 BIAS Input for reference voltage 28 MUTE Input for mute control Notes Symbol of and output of drivers means polarity to Input pin For example if voltage of pinl is high pin14 is high Copyright 2008 LG Electronics Inc All right reserved 2 33 LGE Internal Use Only Only for training and service purposes 3 1 101 MICOM PIN CONFIGURATION P70 INTO TOLCP AN8 P71 INT1 TOHCP AN9 P72 INT2 TOIN NKIN P73 INTS TOIN RES XT1 AN10 XT2 AN11 Vss1 CF1 CF2 Vpp1 P80 AN0 P81 AN1 P82 AN2 P10 SO0 11 510 5 0 LGE Internal Use Only
95. s pin is driven low AIN3A 7 Stereo Analog Input3 Input The full scale level is specified in the ADC Analog Characteristics AIN3B 8 specification table AIN2A 9 Stereo Analog Input2 Input The full scale level is specified in the ADC Analog Characteristics AIN2B 10 specification table AIN1A 11 Stereo Analog Input 1 Input The full scale level is specified in the ADC Analog Characteristics AIN1B 12 specification table AGND 13 Analog Ground Input Ground reference for the internal analog section VA 14 Analog Power Input Positive power for the internal analog section AFILTA 15 Antialias Filter Connection Output Antialias filter connection for the channel A ADC input AFILTB 16 Antalias Filter Connection Output Antialias filter connection for the channel B ADC input 17 Quiescent Voltage Output Filter connection for the internal quiescent reference voltage TSTO 18 Test Pin Output This pin must be left unconnected FILT 19 Positive Voltage Reference Output Positive reference voltage for the internal sampling circuits TSTO 20 Test Pin This pin must be left unconnected AIN4A MICIN1 21 Stereo Analog Input4 Microphonelnput 1 8 2 Input The full scale level is specified in the ADC AIN4B MICIN2 22 Analog Characteristics specification table AIN5A 23 Stereo Analog Input5 Input The full scale level is specified in the ADC Analog Characteristics AIN5B 24 specification table MICBIAS 25 MicrophoneBias Supply Ou
96. tput Low noise bias supply for external microphone Electrical charac teristics are specified in the DC Electrical Characteristics specification table AIN6A 26 Stereo Analog Input6 Input The full scale level is specified in the ADC Analog Characteristics AIN6B 27 specification table PGAOUTA 28 PGA Analog AudioOutput Output Either an analog output from the PGA block or high impedance PGAOUTB 29 VA 30 Analog Power Input Positive power for the internal analog section AGND Analog Ground Input Ground reference for the internal analog section NC 33 Connect These pins not connected internally and should be tied to ground to minimize any 34 potential coupling effects TSTO 35 Test Pin Output This pin must be left unconnected VLS 36 Serial Audiolnterface Power Input Determines the required signal level for the serial audio inter face Refer to the Recommended Operating Conditions for appropriate voltages TSTI 37 Test Pin Input This pin must be connected to ground NC Connect These pins are not connected internally and should be tied to ground to minimize any 40 potential coupling effects SDOUT 41 Serial AudioData Output Output Output for two s complement serial audio data SCLK 42 Serial Clock Input Output Serial clock for the serial audio interface Left Right Clock Input Output Determines which channel Left or Right is currently active on the LRCK 43 1 serial audio data line MCL
97. tput interface PWM Modulator DMIX_MCLK OLRCK OBCK DMIX_SDOUT PWM1_P M PWM2_P M PWM3_P M PWM4_P M PWM5_P M PWM6_P M PWM7_P M PWM8_P M PWM_HP_L_P M PWM_HP_R_P M PWM_SWL_P M EPD_ENA OVERLOAD LGE Internal Use Only PIN DESCRIPTION Name Pin NO Type Description Power and Ground PLL_AVDD Analog Power PLL analog power supply PLL_AVSS Analog Ground PLL analog ground PLL_DVDD PLL Power PLL digital power supply PLL_DVSS PLL Ground PLL digital ground DVDD 13 34 42 66 80 91 Power Core power supply DVSS 14 35 43 63 81 92 Ground Core digital ground IO_VDD 4 10 22 29 39 47 56 65 72 94 Power power supply 3 3V Digital power supply RESET 1 5 7 9 21 28 38 44 50 53 57 60 64 69 73 85 95 I O digital ground Reset and Clock H W reset signal Active Low Schmitt Trigger input The Schmitt Trigger input allows a slowly rising input to reset the chip reliably The RESET signal must be asserted Low during power up De assert High for normal operation Crystal Oscillator input pin Crystal Oscillator output pin PCM Audio Input Output Interface PCM bit clock input output of main 8 channel audio User can select the master slave mode of this signal Schmitt Trigger input PCM Word clock left right clock input output of m
98. tro output PWM output FMO Analog Output Feed motor control PWM output TRAY_OPEN Analog Output Tray PWM output Tray open output TRAY_CLOSE Analog Output Tray PWM output Tray close output TRO Analog Output Tracking servo output PDM output of tracking servo compensator FOO Analog Output Focus servo output PDM output of focus servo compensator FG Analog 1 Motor Hall sensor input 2 GPIO USB DP USB DM Analog Input Analog Input USB port DPLUS analog pin USB port DMINUS analog pin VDD33 USB USB Power USB Power pin 3 3V VSS33 USB USB Ground USB ground pin PAD VRT Analog Inout USB generating reference current VDD18 USB USB Power USB Power pin 1 8V DACVDDC Power Power VREF Analog Bandgap reference voltage FS Analog Full scale adjustment suggest to use 560 ohm DACVSSC Ground Ground pin for video DAC circuitry CVBS Analog Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 27 Analog composite output LGE Internal Use Only Main DACVDDB Type Power Description 3 3V power pin for video DAC circuitry DACVDDA Power 3 3V power pin for video DAC circuitry Y G Analog Green Y SY or CVBS B CB PB Analog Blue CB PB or SC R CR PR AADVSS Analog Ground Red CR PR
99. y Refer to main label Power consumption Refer to main label Net Weight 2 5 kg External dimensions W x H x D 360 x 62 x 305 mm Operating conditions Temperature 5 C to 35 C Operation status Horizontal Operating humidity 5 to 85 AMPLIFIER Output Power Front 45W 45W Rated Output Power 30W THD 10 Center 45W Depending on the sound mode settings and the source there may Surround 45W 45W Rated Output Power 4 Qat 1 kHz THD 10 be no sound output Subwoofer 75W Rated Output Power 60W 8 Oat 30 Hz THD 10 SPEAKERS SH33SU Front Rear Center Speaker Passive Subwoofer SH33SU S SH33SU W Impedance 40 80 Net Dimensions 99 x 114 x 86 mm 156 x 325 x 320 mm WxHxD Net Weight 1EA 0 35 kg 3 5 kg SPEAKERS SH33SD Front Rear Center Speaker Passive Subwoofer SH33SD S SH33SD W Impedance 40 80 Net Dimensions 99 x 114 x 86 mm 156 x 325 x 320 mm WxHxD Net Weight 1EA 0 35 kg 3 5 kg Designs and specifications are subject to change without notice LGE Internal Use Only 1 8 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes SECTION 2 ELECTRICAL PART TROUBLESHOOTING GUIDE 1 Power Supply Circuit INSERT POWER CORD Does red power led turn on NO Check power plug and power supply circuit YES Turn power on YES NO Is power on Check power supply circuit Does red power led tu
100. y for training and service purposes 9 PWR KEY CIRCUIT DIAGRAM Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes v D304 CN30 4 4 gt 22 1301 PWR_KEY 2 3 e TIT 2 65 2 66 HK EY HT303 2007 06 27 BY39799101 01 2007 11 30 s T LGE Internal Use Only 10 MIC amp USB amp PTB CIRCUIT DIAGRAM 12 11 10 LGE Internal Use Only 203 USB JACK La S AB AD 15K ESI W 0 8203 220U 6 DGND OPTI OPT ON1 18 1 4 7 50 rm B F 1209 al C203 glg GND eNO 4 PN202 mle GND 1207 ec T W 2 0 GND 3 4 BEAD 5 DGND 4 7 50 1209 lg 5 DRE 2 8 1 C2D4 2E glz 7 AGND GND 00 72 1208 Pn 8 PTB R BEAD GND 3 56K MIC4

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