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3-20

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING

1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL

1) MT1389 main clock is at 27MHz(X500)

3.8V, 27MHz

FIG 1-1

2. SDRAM CLOCK

1) MT1389 main clock is at 27MHz(X501)

(IC500 PIN 229, 228)

DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V

FIG 2-1

All manuals and user guides at all-guides.com

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Содержание DP9821P

Страница 1: ...P DP9821BPM CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL DP9821P DP9821BPM SERVICE MANUAL P NO 3829RHP047H JUNE 2005 Printed in Korea All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 2: ...1 1 CONTENTS SECTION 1 SUMMARY SECTION 2 EXPLODED VIEWS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST All manuals and user guides at all guides com ...

Страница 3: ...1 2 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 SPECIFICATIONS 1 5 All manuals and user guides at all guides com ...

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

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

Страница 6: ...ating conditions Temperature 4 C to 35 C Operation status Horizontal Connectors Video input output VIDEO In Out 1 0 V p p 75 Ω negative sync ø3 5mm mini jack x 1 Audio oinput output AUDIO In Out analog audio Optical connector ø3 5mm x 1 Audio input output 2 0 Vrms 1 KHz 0 dB ø3 5m mini jack x 1 AUDIO In Out analog audio Earphone terminal ø3 5mm stereo mini jack x 2 Liquid Crystal Display Panel siz...

Страница 7: ...2 1 SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS 2 2 Cabinet and Main Frame Section 2 2 Packing Accessory Section 2 4 All manuals and user guides at all guides com ...

Страница 8: ...ame Section 272 250 A48 290 275 277 A51 277 276 A49 A45 A44 809 280 284 281 A46 260 268 270 269 267 266 265 263 A43 A00 294 293 295 292 296 251 252 262 261 LCD MAIN KEY A41 A42 A 5 4 3 2 1 B C D All manuals and user guides at all guides com ...

Страница 9: ...NUAL 801 REMOCON 900 R C BATTERY 808 R C BATTERY BAG 804A 830 AC ADAPTER 831 ADAPTER DC DC 12 814 PLUG ASS Y BATTERY 809 GIFT BOX 802B BOX 802 OPTIONAL PARTS ACCESSORY BOX 802A BAG 804 PACKING 803 All manuals and user guides at all guides com ...

Страница 10: ...TENTS LCD PART 3 2 ELECTRICAL TROUBLE SHOOTING GUIDE 3 11 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 3 20 BLCOK DIAGRAMS 3 29 CIRCUIT DIAGRAM 3 31 PRINTED CIRCUIT DIAGRAMS 3 49 All manuals and user guides at all guides com ...

Страница 11: ... level while changing the VR1 as below waveform by using the scope in the C84 3 VCOM waveform adjustment Adjust the VCOM level while changing the VR801 as below waveform by using the scope in the CE814 3 2 Vcom Waveform 63 5 63 5µs 5 5 3Vp p 3Vp p 0 7V 4 6V GND GND LCD PART All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 12: ...ce D2 D3 D8 Check Main B D on located IC U6 Check and Replace A V IN S W Check IC U2 Check and Replace IC U3 Check and Replace FUSE NORMAL IC U1 NORMAL OPERAE 7 5V 15V 14 5V Normal 5V Normal Y C Display signal R G B signal output VCOM signal 5 5Vpp YES YES NO NO NO NO NO NO NO YES YES YES YES LCD TROUBLE SHOOTING GUIDE 1 2 All manuals and user guides at all guides com ...

Страница 13: ...U4 Check TFT LCD PRESSURE VOLTAGE 15V 14 5V 5V TFT LCD NORMAL Replace COLOR ADJUSTING NORMAL Readjust as adjustement standard EACH CONNECTOR Replace and Reassemble END Replace YES YES YES YES YES NO NO NO NO NO NO LCD TROUBLE SHOOTING GUIDE 2 2 All manuals and user guides at all guides com ...

Страница 14: ...3 5 LCD BLOCK DIAGRAM TFT LCD 7î WIDE INVERTER TERAMINS T100 DC DC CONV SY SC CVBS 15V 14 5V 7 5V 5V OEH OEV STV STH CKV VCOM RGB All manuals and user guides at all guides com ...

Страница 15: ...STH2 DE CPH1 LLCK1 CPH2 LLCK2 CPH3 LLCK3 IOB IOG IOR RSET COMP VREFIN VREFOUT FIB1 VREF NC1 NC2 AGNDB AGNDB AGNDG AGNDG AGNDR AGNDR GND GND GND GND GND GND GND GND AVSSD DVSS AVSS33B AVSS33G AVSS33R AVSS AVDDB AVDDB AVDDG AVDDG AVDDR AVDDR AVDD33B AVDD33G AVDD33R AVDD VDD33 VDD33 VDD33 VD33 VDD25 VDD25 VDD25 DPLLVC25 DPLLGND VDD25 VDD33 DVDD AVDD33 VDD25 VD33 1RP4 33 1 8 2 7 3 6 4 5 VDD22 1C1 22P ...

Страница 16: ...3V U D 15V 5VD R57 10K 1 2 CVBS VCOM GNDD 5VD L11 FB 10R 0603 OEH STH1 R55 4K7 OEV CPH3 SPL C71 100n CPH2 CPH1 L16 FB 10R SPL L13 10uH L12 10uH IRON 1206 L R C73 4 7uF 25V VB R11 1M Q3 2N3904 2 3 1 R36 1M R13 10K C76 0 1uF R9 39K IOB R26 39K VG 7VD5 7 5V C75 0 1uF R35 430 C52 1uF C60 0 1uF C79 100pF C77 1uF IOR C47 47uF 16V C53 10uF 10V 7 5V BIAS IOG R27 430 R12 75 R28 1M L8 10uH 1206 Q2 2N3904 2 ...

Страница 17: ...0uF 6 3V C5 0 1uF C16 0 1uF C24 47uF 16V 7 5V BIAS C26 100uF 6 3V C20 0 1uF R4 10K L4 10uH 1206 L3 10uH 1206 C43 47uF 6 3V C41 0 1uF 2 5V VDD33 VDD22 R19 4 7K 3 3V R18 4 7K C40 47uF 10V C39 0 1uF CBMID C33 0 1uF C36 47uF 10V R23 1K CGMID D1 IN5819 1 2 VDD33 C35 0 1uF 3 3V R22 1K AVDD33 C34 47uF 10V L5 FB 1206 L6 10uH 1206 R16 2 7K 8 2K SW4 SW1 R15 1 2K 3 9K SW2 R17 4 7K 24K KEY SW3 All manuals and...

Страница 18: ...SC C10 47uF 6 3V S_C R2 75 2 5V AV R37 1K R7 0 JP1 1 2 C72 0 1uF C9 1uF C22 680pF C42 104 R8 75 SPL R6 75 C38 330pF CVBS SPR C21 104 SPR SPL RSET R5 0 S_Y C23 330pF C25 104 VDD33 JP2 1 2 AVDD33 L1 2 7uH 0603 SY L2 2 7uH 0603 L9 2 7uH 0603 C37 680pF All manuals and user guides at all guides com ...

Страница 19: ...3 10 LCD P C BOARD TOP VIEW BOTTOM VIEW All manuals and user guides at all guides com ...

Страница 20: ...O POWER ON by ADAPTOR Replace ADAPTOR Is ADAPTOR OUT 9 5V Is D106 OK Is F101 OK NO NO NO NO Replace F101 Replace D 106 Replac F102 YES YES YES YES Is F102 OK YES A NO POWER ON by BATTERY Replace BATTERY Is BATTERY OK A NO YES YES All manuals and user guides at all guides com ...

Страница 21: ...eplace IC U102 Replace IC U106 Is IC U101 5v OK Replace IC U102 Replac F102 Replace IC U101 Replace L407 Is C102 3 3V OK NO 5V NO 5V Replace IC U101 Is IC U105 A 5V OK NO LCD POWER All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 22: ...e IC U301 VIDEO OUT ABNORMAL Check Video Jack Mode Check IC U401 Check Video signals from MPEG YES YES YES Check LC Filter YES AUDIO IN SPEAK ER ABNORMAL Check Audio Jack Mode S W Is Speakers OK Replace Is CON302 OK Replace CON302 Speakers Replace IC U306 VIDEO IN ABNORMAL Check Video Jack Mode Check CON402 Is D401 OK Replace D401 Refer to LCD part All manuals and user guides at all guides com ...

Страница 23: ...ES YES YES YES Check MPEG IC U500 If OK YES If OK YES If OK YES If OK YES If OK YES If OK YES Replace B D DISC ERROR Check Disc Replace B D Refer to Servo part YES YES YES OPEN CLOSE ABNORMAL Check SW501 switch Refer to SERVO part Check IC U500 Pin 49 NO Check the connectin of MD NO Refer to SERVO part YES YES All manuals and user guides at all guides com ...

Страница 24: ...icture of the video CD play on the screen normally Does the audio sound output normally END Check power clock Check CD DVD DSP output signal Check MPEG Decoder input signal Check CD DVD DSP output signal Check MPEG Decoder input signal Check CD DVD DSP output signal Check MPEG Decoder input signal Check clock signal Check clock signal YES YES YES YES YES YES YES YES YES YES NO NO NO OK OK OK OK NO...

Страница 25: ...Laser off Proper RFL signal on MT1389 Proper DMSO signal on MT1389 Check DMSO related circuit on MT1389 Check the cable connection between spindle and main PCBA Check the RFL connection between CON200 and MT1389 Put disc in Disc ID is correct Does spindle rotate D All manuals and user guides at all guides com ...

Страница 26: ...roper FEO signal on MT1389 Check the related circuit on MT1389 FEO sugnal Check the related circuit on MT1389 Properly TRSO signal on MT1389 T T output properly Check the TRSO connection on MT1389 and motor dirver Check the tracking control amp circuit on motor driver Check cable connection on pick up head Check RF signal waveform Check IC500 IC D All manuals and user guides at all guides com a l ...

Страница 27: ...filter amplify mute circuit Check the cable connection on Front pannel Check connection between MT1389 Audio DAC Check VRST ACLK ABCK ASDAT3 Check the related circuit of Audio DAC Check Audio out Pin 14 15 18 19 Check communi cation lines on MT1389 Communications between IR VFD Front pannel key MT1389 Front u com IC901 is normally All manuals and user guides at all guides com ...

Страница 28: ...OK Is IC U703 OK Is L701 C706 C709 OK Is IC U701 OK Is IC702 OK Is 8 4V of J601_Pin1 OK Replace Q707 Replace IC U703 Replace L701 C706 C709 Replace IC U701 Replce IC702 4 Chargeing Circuit All manuals and user guides at all guides com ...

Страница 29: ...NG 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389 main clock is at 27MHz X500 3 8V 27MHz FIG 1 1 2 SDRAM CLOCK 1 MT1389 main clock is at 27MHz X501 IC500 PIN 229 228 DCLK 93MHz Vp p 2 2 Vmax 2 7V FIG 2 1 All manuals and user guides at all guides com ...

Страница 30: ...3 21 3 DISC TYPE JUDGEMENT WAVEFORM F IC200 PIN 24 FE IC500 PIN 31 RFL IC500 PIN 6 FIG 7 1 DVD F IC200 PIN 24 FE IC500 PIN 31 RFL IC500 PIN 6 FIG 7 2 DVD All manuals and user guides at all guides com ...

Страница 31: ...3 22 F IC200 PIN 24 FE IC500 PIN 31 RFL IC500 PIN 6 FIG 7 3 CD F IC200 PIN 24 FE IC500 PIN 31 RFL IC500 PIN 6 FIG 7 4 CD All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 32: ...OCUS ON WAVEFORM FE IC500 PIN 31 FOSO IC200 PIN9 F IC200 PIN 24 F IC200 PIN 23 FIG 8 1 DVD FE IC500 PIN 31 FOSO IC200 PIN9 F IC200 PIN 24 F IC200 PIN 23 FIG 8 2 CD All manuals and user guides at all guides com ...

Страница 33: ... 1 4V 1 8V IC501 PIN 18 SP 3 6V 2 4V IC202 PIN 10 SP 3 6V 4 8V IC202 PIN 11 FIG 9 1 6 TRACKING CONTROL RELATED SIGNAL System checking TE IC500 PIN 32 TRSO IC200 PIN 8 T IC200 PIN 20 T IC200 PIN 19 FIG 10 1 DVD All manuals and user guides at all guides com ...

Страница 34: ... 25 7 RF WAVEFORM RFOP 2 3V 1 1V IC500 PIN 25 RFON 0 8V 2 0V IC500 PIN 26 FIG 11 1 TE IC500 PIN 32 TRSO IC200 PIN 8 T IC200 PIN 20 T IC200 PIN 19 FIG 10 2 CD All manuals and user guides at all guides com ...

Страница 35: ... 26 8 MT1389 AUDIO OPTICAL AND COAXIAL OUTPUT ASPDIF IC500 PIN 225 FIG 12 1 9 MT1389 VIDEO OUTPUT WAVEFORM 1 Full colorbar signal CVBS IC604 PIN 23 FIG 13 1 All manuals and user guides at all guides com ...

Страница 36: ...3 27 2 Y IC604 PIN 21 FIG 13 2 3 C IC604 PIN 26 FIG 13 3 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 37: ...10 AUDIO OUTPUT FROM AUDIO DAC 1 Audio L R FIG 14 1 JK601 PIN 4 5 2 Audio related Signal ASDAT0 IC301 PIN 3 ABCK IC301 PIN 4 ALRCK IC5301 PIN 5 ASDAT 0 FIG 14 2 All manuals and user guides at all guides com ...

Страница 38: ... CVBS JACK BATERY BL OCK BAT7 6V SP _AM P_EN MUTE_FM BF1_FM_CS VIDEO_IO_CON AUDIO_CD_CON VFD_TXD VFD_SCK MPEG FM_MUTE FM_CS FM_SCK FM_TXD FM A_VIDEO_IO_CON A_AUDIO_CK_CON A_SP_AMP_EN AUDIO AV FD_TXK AV FD_SCK AVFD_CS 27MHz 5MHz BAT_SENCE DC_SENCE DC 9 5V FRONT BLOCK DISC FRONT SPINDLE MOTOR STEPPING MOTOR M PICK UP M U201 BA5954 U202 BA5954 U500 MT1389 MPEG DSP RF U501 26V160TE 70 U502 M122641 64A...

Страница 39: ...102 U101 MP1410 U102 MP1410 U105 RT9701 U701 SI4435D Y U702 GT6312 U104 BD6111FV From AC Adapter9 5v From BATTERY 7 6V To BATTERY CH_EN PWRCTL_ 3 3V PWRCTL_5V DCPWR E 5V S 5V A 5V A 5V D 3 3V A 3 3V D 1 8V 15V 14 5V 7 5V All manuals and user guides at all guides com ...

Страница 40: ... 1 4 OUT IN GND TAB U101 MP1410 1 2 3 4 8 7 6 5 BS IN SW GND N C EN COMP FB A 5V D 1 8V 3 C146 100uF 6 3V R102 0 VCC_3V3 R118 0 C111 0 1uF D104 UDZS16B C142 220uF 16V L104 10UH D103 UDZS16B PWRCTL_5V3 TP113 C144 1U TP124 TP111 C116 0 1uF L110 10uH HEC3110 R104 10K TP101 C132 220uF 6 3V L105 10UH L112 15uH U105 RT9701 1 5 2 3 4 VOUT VOUT GND VIN CE DC_SENSE 6 PWRCTL_3 3V6 C127 103 R108 2K C145 100u...

Страница 41: ...FTK CTK2 BIAS VOSL VINSL VINSL STBY VCC VOSL VOLD VOLD VOTK VINLD PREGND CTK1 VINTK G1 G2 FG TP251 R220 R C215 47uF 16v A DVD_LD The countermeasure of static electricity D201 STZ6 8N OPEN 1 2 3 1 2 3 1 C 3 D FMSOA 3 LDO2 C203 22U 10V C 3 D208 STZ6 8N OPEN 1 2 3 1 2 3 TP262 RFIP TP242 2 RFIP 3 TNI SUBA B HU TPI C213 0 1uF FG SUBA 3 V1P4 L201 10uH C207 0 1uF ENDM 3 B C209 0 1uF ENDM R232 R TP253 C20...

Страница 42: ...D18 A13 M_RESET DCLK MA2 C550 1000P DQ3 DACVDD3 C551 0 1U TP517 R522 0 UP1_3 A_JACK_IN C541 0 047U 25V C V1P4 C518 1500P C505 15P XO C558 0 1U R508 33 DQ12 A12 TP511 A3 A14 C532 0 1U TP519 RAS DQ11 RFV18 C557 10U 6 3V TP502 C559 10U 6 3V TP513 TP518 AD1 MUTE_FM RFVDD3 BA1 A9 DACVDD3 C530 0 1U C L503 10UH TP530 C503 1U C536 0 1U TP507 D 3 3V A20 BA0 CAS C508 15P C515 0 015U D 3 3V AUDIO_CD_CON M_RE...

Страница 43: ...2 0 A 5V ALRCK B307 BEAD R365 330 TP346 C322 10uF 10V R353 0 A 5V C389 10U 10V Q319 3904 open 1 2 3 C311 270P GT306 Q303 2N3904 2 3 1 R337 R R360 220 Q307 2N3904 2 3 1 TP341 A 5V ML_OUT AUDIO_5V AUDIO_5V C317 0 1U A_MUX_OUT_L8 C315 0 1U R371 0 TP338 E 5V 1 6 7 Q310 2N3904 2 3 1 B301 10uH HP_SENSE 3 GND R358 560 C380 10U 10V TP323 CE322 47U 6 3V B308 BEAD TP325 TP313 R326 220 C326 2 2uF 10V R349 R ...

Страница 44: ... 2A GND 3A 3B2 3B1 4A 4B2 4A1 4B1 VCC B402 BEAD R406 OPEN L409 10uH GT421 R415 open KEY_N MCU_SDA 6 A 5V 1 2 3 4 6 GT419 TP425 GT413 SP_L 4 R409 100 A 3 3V R402 300 R420 39k GT407 Q408 OPEN 2 3 1 L401 2 7uH CVBS GT416 NAVIGATION 6 Q404 KTA1504S 2 3 1 TFT_5V C408 100P A 3 3V 1 2 3 4 C403 100P Q418 OPEN 2 3 1 R424 open C402 nc R413 75 GT414 GT403 SP_L 4 R403 560 GT411 D406 STZ6 8N 1 2 3 1 2 3 VIDEO_...

Страница 45: ... GND KEY_LCD 1 PWRCTL_3 3V 1 R604 56K TP606 E 5V VFD_SCK E 5V FM_SCK 9 R639 10K 1 2 C606 0 1U U602 AAT3522 2 1 3 FM_CS 9 U601 24C016A 1 2 3 4 5 6 7 8 A0 A1 A2 VSS SDA SCL WP VCC Signal Power Up 3 3V 5V KEY_M 5 HOLD C611 0 1uF R612 OPEN MCU_SCL 1 C602 0 1U M_REQ3 R631 4 7K TP620 D603 GREEN_RED LED E 5V C604 0 1U TP624 TP618 GND U601 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ...

Страница 46: ...16 17 18 19 20 PORTD 2 PORTA 0 AN0 PORTA 1 AN1 PORTD 3 PWM1 PORTB 2 AN6 OSC1 PORTB 3 AN7 PORTE 3 PORTE 2 VDD PORTC 0 OSCO PORTC 3 PWM0 GND RESET PORTC 3 T0 PORTC 1VREF PORTD 0 PORTD 1 PORTE 0 PORTE 1 R715 51K VCC C711 104 R720 10K D705 UDZS16B PWM TEST1 VREF C708 104 GND CH_ENABLE6 C707 104 SAM_T CHAGER Q705 9013 Q704 9013 R704 R727 10 R705 1K C705 104 PWM P P R731 10K 1 P C709 100U 25V R706 3 6K ...

Страница 47: ...1 DOWN LEFT Q5 STZ6 8N 2 1 3 RIGHT R3 9 1K L1 10UH SW1 TSM148AF 1 2 SW5 TSM148AF 2 1 MENU TACK SW TSM148AF C2 0 1U C1 0 1U R19 220K AV_IN LCD_MODE R10 1 3K ENTER R5 9 1K POWER SW11 TSM148AF 2 1 R6 4 7K R14 10K C5 10U 10V SW8 TSM148AF 2 1 Q4 STZ6 8N 2 1 3 TITLE SW6 TSM148AF 2 1 SW10 TSM148AF 2 1 TP1 R13 2 7K Q1 2N3906 2 3 1 R18 22K JP1 HEADER 6 1 2 3 4 5 6 R1 15K UP R12 2 7K SW12 TSM148AF 2 1 R17 1...

Страница 48: ...G PROTECT L2 FB 2R2 1k 2R3 1k F1 LP300 N2 Si9926DY 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 2C5 104 2C2 104 BATTERY 2R5 4M7 2R4 1k 1 2C1 104 L4 0 L1 FB L3 0 B B N1 S 8232ALFT 1 2 3 4 5 6 7 8 SENS DO CO VM VSS ICT VC VCC A B C D E F G H I J K L M N O P Q R S T All manuals and user guides at all guides com ...

Страница 49: ...3 49 3 50 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD All manuals and user guides at all guides com ...

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