Sanyo DC-DAV821 Service Manual Download Page 17

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DVD START-UP PROGRAM FLOW CHART

data:Tm

D = 8cm

D = 12cm

NoDisc

Spindle Servo

Gain down

pk0 : Th0

pk1 : Th1

D-type = CD

D-type = CDRW

D-type = DVD

SGC(pk0)

Fofst Adj

DVD Mode

SGC(pk1)

Fofst Adj

pk2 : Th2

D-type = DVD Dual

D-type = DVD Single

SGC(pk2)

pk2 > Th2

pk2 < Th2

Start

D-type : Disc Type

pk0 : pk1

Start

Vref

compensation

Kick

Spindle

pk0 : Th0

FG servo

500 rpm

CD Mode

DVD Mode

Fofst Adj

Fcs Aji

data:pk0

Fofst Adj

Fcs Adj

data:pk1 & pk2

one rev

not yet

done

data:Tm

Rising Time

Tm : Th1

Tm : Th2

Disc diameter identification

Tm < Th1

Tm < Th2

pk1 : Th1

pk2 : Th2

pk2 > Th2

pk0 > Th0

pk2 < Th2

pk0 > Th0

pk0 > pk1

pk0 < pk1

pk0 < Th0

pk1 < Th1

pk1 > Th1

CD Mode

Tm > Th2

Tm > Th1

pk1 > Th1

pk1 < Th1

Th1=300 ms

Th2=155 ms

Th : Time threshold

pk0 : S-Peak value

pk1 & pk2 : 1st & 2nd S-Peak value

pk0 < Th0

Th0 : Level threshold

Disc Type identification

1. Disc Identification

(This is a basic start-up program flow chart.)

Summary of Contents for DC-DAV821

Page 1: ...AM FLOW CHART 20 MPEG AND FRONT END P W BOARD OPERATION BLOCK DIAGRAM 22 MPEG AND FRONT END P W BOARD OPERATION SCHEMATIC DIAGRAM FOR WAVEFORM CHECK 24 MPEG AND FRONT END P W BOARD OPERATION CHECK WAVEFORM 26 TROUBLE SHOOTING 34 VOLTAGE OF IC TRANSISTOR 37 TUNER ADJUSTMENTS 40 EXPLODED VIEW CABINET CHASSIS 41 PARTS LIST 42 EXPLODED VIEW DVD MECHANISM 53 PARTS LIST 53 IC BLOCK DIAGRAM DESCRIPTION 5...

Page 2: ...c distortion digital audio 0 003 Wow and flutter Below measurable level General Output power Total 15W x 2 at 4 ohms 10 distortion Inputs AUX IN1 550mV 50k ohms AUX IN2 550mV 50k ohms Outputs SPEAKERS 4 ohms 6 ohms PHONES 8 32 ohms SUB WOOFER OUT 1 0 V rms DIGITAL OUT Optical VIDEO OUT 1 0 Vp p 75 S VIDEO OUT Y 1 0 Vp p 75 NTSC 1 0 Vp p 75 PAL C 0 236 Vp p 75 NTSC 0 3 Vp p 75 PAL Power requirement...

Page 3: ...tion will cause malfunction or degradation DVD MECHANISM REPLACEMENT Connectors Do not connect or disconnect while power is on Connecting or disconnecting signal wires or the main power cord when the power is on may destruct the unit or fixture When connecting push all the way in securely An insufficient insertion may cause a bad contact leading to an erroneous operation Do not connect or disconne...

Page 4: ...0L MOLYKOTE EM 50L MOLYKOTE EM 50L MOLYKOTE EM 50L SILICON GREASE KS 64 3 TRAY PART MOLYKOTE EM 50L GREASE CDF 409 GREASE CDF 409 4 BASE MECHANISM PART 1 TRAY AND BASE MECHANISM PART 2 Base mechanism mounting PART Do not remove the pick up from base mechanism because of adjustment difficulty ...

Page 5: ...the SLIDE left side 2 Match the Hole of GEAR 5 and Hole of CHASSIS 4 6 Match the hole of GEAR 7 and hole of chassis while turning GEAR 6 7 Match the mark of LOADING GEAR 8 and gear of TRAY where see horn hole 9 of tray 8 Push a tray with the state that turned the entire surface of a tray into approximately 5 degrees the lower part slowly CHASSIS FRONT SIDE MOTOR MARKER MARKER 1 2 2 3 3 RIB RIB GRE...

Page 6: ...ration diagram This is a basic general operation diagram DVD P W BOARD OPERATION The circuit mounted on the Loader part Frontend Board is configured as shown which is divided into following blocks according to main ICs ...

Page 7: ...L OFSET BCA BOOT3T RFVCA TBAL FBAL SGC HFLBIAS TESBIAS FDO TDO SPDO SLDO SLCBTAS RFPI RFOP RFON DEF PH BH BCA TE WO FE RREC TOST FOST BST VGA TEBL FEBL SGC SERVO VREFS VREFS TH CPOF XHTRC DPD TE XQBH PP TE EQSCT RFSCT VREFP LDON1 LDON2 PICK APC1 RR 1 B FE 1 FE 2 RR 2 APC2 VREFP1 MTX A D C C A DVD PU DVD PU B F E DPD 2C A B 3 BEAM PUSH PULL REN REP LPF BCA TH DEFECT PEAK HOLD BOTOM HOLD TE HOLD LPF...

Page 8: ...C200 201 High When passing defection TOST TP246 IC200 29 Trk Offset Control analog FOST TP247 IC200 30 Focus Offset Control analog BOOST3T TP248 IC200 31 RF EQ Control analog RFVCA TP249 IC200 32 RF Voltage Control analog TBAL TP250 IC200 33 Trk Balance Control analog FBAL TP251 IC200 34 Fcs Balance Control analog SGC TP252 IC200 35 Signal Gain Control anlog HFBUSYB TP254 IC200 50 Function Busy Lo...

Page 9: ...H BH DEFECT RF PH BH DEFECT Scratched defect Interruption defect 1 RF and Defection Signal 2 Servo and Tray Control A S Curve signal by Focus search Zero cross point RF FDO FE RF FDO FE S Curve of DVD Single Layed disc S Curve of DVD Dual Layed disc Each signal shown refers to WIRING SCHEMATIC DIAGRAM and Table of monitor signals This is a basic signal ...

Page 10: ... Cross point RF FDO FE Zero cross point Brake pulse Kick pulse RF FDO FE Focus In Focus Jump C Tracking Servo RF TE a TE Tracking Error Signal TE Curve b Track Jump Signal RF TE TDO SLD Brake pulse Kick pulse RF TE TDO SLD Sled drive One Track Jump 16 Track Jump ...

Page 11: ...vo Sled motor drive signal RF TE TE SLDO SLDO Zoom RF E Spindle Servo Spindle motor drive signal U V W SPD U U FG Spindle Drive U V W Spindle W W FG F Tray open and close CLOSE OPEN OPEN SW CLOSE SW CLOSE OPEN OPEN SW CLOSE SW Tray Close Tray Open ...

Page 12: ...z CD Normal speed RF EFMOUT SBAIS RF EFMOUT PCK 4 Reset Timing for Micom Cotroller VDD 5V RESET HRST Reset Timing 5 Anti Defect Processing A Disturbance by Defect RF TE Disturbance of tracking Defect RF TE FE DEFECT0 TE disturbance at Defect Suppressed disturbance by TE FE hold process ...

Page 13: ...ECTO DEFECTI Def Inh from IC500 Trk EQ Fcs EQ OR Q1009 Q1010 6 Start up program A Disc type Identification a In the case of DVD Dual Disc Zoom A No peak B Two peaks CD laser DVD laser RF FDO FE SPD RF FDO FE SPD RF FDO FE SPD Zoom b In the case of DVD Single Disc Zoom Peak 0 Peak 0 Peak 1 Peak 1 CD laser DVD laser RF FDO FE SPD RF FDO FE SPD RF FDO FE SPD Zoom ...

Page 14: ...ak 1 CD laser Zoom DVD laser FE FDO FE SPD FE FDO FE SPD Spindle kick SPD FG 6 FG 1 revolution Tm 300ms B Disc diameter identification SPDO FG 6 FG 1 revolution Tm 155 ms SPDO FG 6 FG 1 revolution Tm 155 ms a In the case of 12cm Disc b In the case of 8cm Disc c In the case of NO Disc ...

Page 15: ...18 DVD P W BOARD OPERATION SIGNAL 7 Adjustment Auto Adjustment A SGC Signal Gain Control Adjustment Zoom Zoom Zoom RF FDO FE SPD RF FDO FE SPD B Tracking Balance Adjustment Vref Zoom RF FDO TDO TE TE RF ...

Page 16: ... 19 DVD P W BOARD OPERATION SIGNAL C Focus and Tracking Gain Adjustment Zoom RF FDO FE SPD FE FDO RF SPD a Focus gain Adjustment b Tracking Gain Adjustment Zoom RF FDO TDO TE TE TDO RF FDO ...

Page 17: ...Th0 FG servo 500 rpm CD Mode DVD Mode Fofst Adj Fcs Aji data pk0 Fofst Adj Fcs Adj data pk1 pk2 one rev not yet done data Tm Rising Time Tm Th1 Tm Th2 Disc diameter identification Tm Th1 Tm Th2 pk1 Th1 pk2 Th2 pk2 Th2 pk0 Th0 pk2 Th2 pk0 Th0 pk0 pk1 pk0 pk1 pk0 Th0 pk1 Th1 pk1 Th1 CD Mode Tm Th2 Tm Th1 pk1 Th1 pk1 Th1 Th1 300 ms Th2 155 ms Th Time threshold pk0 S Peak value pk1 pk2 1st 2nd S Peak ...

Page 18: ...cus In CLV On 1 NG Dual OK Single CD Tbal adj Mirr adj Tbal adj Mirr adj Trk On Fgain adj Tgain adj Fgain adj Tgain adj Sled On Sled On Sld Off Trk Off Trk On RF adj RF adj Fcs jump Fbal adj Eccentricity measure L1 L0 Next Layer 1st layer DVD Mode Waiting Error check D type D type Fbal adj Trk shift EQ sdj Trk shift EQ adj Sled outer TOC read 2 DVD Single Dual NG CD Ok Trk shift EQ adj Fcs Jump ...

Page 19: ...EO OUT VIDEO OUT component composite y c 98 99 101pin 5V 13 15 17 19 21 23 25 27pin DVD VCD MPEG AND FRONT END P W BOARD OPERATION BLOCK DIAGRAM IC136 INVERTER IC135 BUFFER IC135 BUFFER IC131 ADAC IC132 AMP 48pin 4pin 4pin 55pin 35pin 35pin 130pin 56pin 1 2pin 1pin 2pin 4pin 1 2pin 2pin IC102 VENC IIC BUS IC101 EEPROM IC116 MPU IC117 DRAM IC130 RESET IC118 FLASH IC111 SDRAM IC110 SDRAM CN810 10pin...

Page 20: ...101 EEPROM IC116 MPU IC117 DRAM IC130 RESET IC118 FLASH IC111 SDRAM IC110 SDRAM IC127 MPEG DEC FRONT LOADER RESET signal diagram AUDIO OUT VIDEO OUT VIDEO OUT component composite y c 16pin 9pin 22pin 84pin 95pin 86pin 57pin 17pin 85pin 3pin 1pin 3pin 4pin 5V IC113 3V 5V This is a basic block diagram ...

Page 21: ... 26 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 1 2 3 4 5 6 Indicate each signal in schematic diagram of MPEG Zoom Zoom This is a basic check waveform ...

Page 22: ... 27 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 7 8 10 DVD CD 12 11 ...

Page 23: ... 28 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 13 14 15 16 17 18 Surround ON ...

Page 24: ... 29 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 19 20 21 22 Zoom Surround OFF Surround ON Surround OFF 50 51 ...

Page 25: ... 30 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 52 53 54 55 56 57 ...

Page 26: ... 31 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 58 59 60 61 62 63 ...

Page 27: ... 32 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 64 65 66 67 68 69 ...

Page 28: ... 33 MPEG AND FRONT END P W BOARD CHECK WAVEFORM 70 71 72 73 78 79 S VIDEO COMPOSITE VIDEO ...

Page 29: ... IC113 112 periphera confirm REMCON OK then IC601 peripheral confirm l POWER KEY confirm LED peripheral circuit confirm P CON 5V 12 30 FIL confirm IC601 VDD RESET OSC confirm IC601 FPC16316 80 confirm STANDBY LED peripheral circuit confirm P COn 5V 12 30 FIL confirm RESET IC130 confirm VDD CLOCK confirm IC116 peripheral confirm IC601 VDD RESET OSC confirm IC601 UPD16311 confirm STANDBY LED periphe...

Page 30: ...y OK and sound NG or When S PDIF OK and analogue NG 2 When time display NG and sound NG Check optical module and signal line NG OK Check IC127 peripheral IC127 NG Check signal line peripheralpattern and parts Check time display NG OK NO NO YES YES Check same output as SPDIF and RCA Check check 1 Check check 2 4 When S PDIF NG and analogue NG 5 When pop noise when usual operate 3 When S PDIF NG and...

Page 31: ... PART Check wirng from encorder output to set output IC102 NG IC102 NG IC127 NG Check wiring IC127 NG Check the whole Inquire wiring NO YES NO YES NG OK 3 When confusion of the picture 4 When confusion of the picture Check loader Check the whole Check MPEG p w board Recover at exchanged loader Recover at exchanged MPEG p c board Recover at exchanged disc NG OK Check fluctuation of power source 5V ...

Page 32: ...6 Power OFF 3 3V 0V 0 4V 0 4V 3 3V 0 4V 0 4V 0V 0 4V 0 4V 3 3V 0V 3 3V 3 3V Power ON 3 3V 0V 3 3V 0V 3 3V 0V 3 3V 3V Pin No 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Power OFF 3 3V 3 3V 0V 0V 0V 0V 0V 0V 3 3V 0V 0V 0V 0V 0V 0V 0V Power ON 3 1V 3 1V 0 2V 0V 0V 0V 0 2V 0 2V 3 3V 0V 0 2V 0 2V 0 2V 0 2V 0V 0V Pin No 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Power OFF 0V 3 3V 1 6V 0V 0V 3 3...

Page 33: ... 105 106 107 108 109 110 111 112 Power OFF 3 3V 0V 3 3V 0V 3 3V 0 4V 0V 0 6V 0 5V 0 5V 0 6V 0 5V 0V 3 3V 0 5V 0V Power ON 3 3V 0V 3 3V 0V 2 7V 0V 3 3V 0V Pin No 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 Power OFF 3 3V 3 3V 3 3V 3 3V 3 3V 0V 0V 3 3V 0V 2 5V 1 6V 0V Power ON 3 3V 3 3V 3 3V 3 3V 3 3V 0V 0V 3 3V 0V 2 5V 1 6V 0V Pin No 129 130 131 132 133 134 135 136 137 138 139 1...

Page 34: ...V 1 6V 0V 0V 1 6V 1 7V 3 3V 1 6V 1 6V 0V 0V 0V 0V 1 6V 0V Pin No 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 Power OFF 0V 0V 3 3V 0V 3 3V 3 3V 0V 0V 3 3V Power ON 0V 0V 3 3V 0V 3 3V 3 3V 0V 0V 3 3V Pin No 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 Power OFF 1 6V 0V 0V 0V 0V 3 3V 0V 0V 0V 0V 0V 0V 0V 3 3V 0V Power ON 1 6V 0V 0V 0V 0 2 3 3V 0 2V 0 2V 0 2V 0V ...

Page 35: ...IS Y12 Y1 Y7 Y8 Y10 Y11 Y9 Y7 Y18 Y17 Y17 Y17 Y19 Y20 Y21 Y25 Y26 Y23 Y23 Y24 Y24 Y7 Y2 Y2 Y3 Y4 Y6 Y6 Y6 Y6 Y6 Y4 Y5 Y5 Y3 2 3 4 5 6 4 17 18 73 75 76 77 78 20 21 22 23 19 7 8 9 71 72 12 11 10 13 14 15 1 Y12 Y15 74 57 58 59 24 61 62 ...

Page 36: ...DE SHIELD 13 614 314 7053 DEC WINDOW TRAY LED TRAY LIGHTING 14 614 314 7183 MOUNTING LED TRAY LED FIX 15 614 315 6925 ASSY CABINET BENDING AFTER BENDING 17 614 314 7138 MOUNTING MPEG L MPEG ASST L 18 614 314 7107 SHIELD MPEG BOTTOM MPEG PWB BOTTOM 19 614 314 7145 MOUNTING MPEG R MPEG ASST R 20 614 314 7121 MOUNTING HEAT SINK PWG FIX 21 614 316 1615 ASSY CABINET BOTTOM SS 21 614 316 1608 ASSY CABIN...

Page 37: ... 105 0603 MT GLAZE 10K JA 1 16W R6030 401 105 4205 MT GLAZE 33K JA 1 16W R6060 401 105 0603 MT GLAZE 10K JA 1 16W R6081 401 105 0504 MT GLAZE 1K JA 1 16W R6082 401 105 0504 MT GLAZE 1K JA 1 16W R6101 401 105 5301 MT GLAZE 4 7K JA 1 16W R6102 401 105 4502 MT GLAZE 390 JA 1 16W R6103 401 105 5202 MT GLAZE 470 JA 1 16W R6104 401 105 6506 MT GLAZE 680 JA 1 16W R6105 401 105 7305 MT GLAZE 820 JA 1 16W ...

Page 38: ...MT GLAZE 0 000 ZA 1 8W R6979 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6980 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6981 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6982 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6983 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6984 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6985 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6986 401 035 4108 MT GLAZE 0 000 ZA 1 8W R6987 401 035 4108 MT GLAZE 0 000 ZA 1 8W...

Page 39: ...87 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR 1000 OHM B8405 645 034 7887 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR 1000 OHM B8406 645 034 7887 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR 1000 OHM B8407 645 034 7887 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR 1000 OHM B8408 645 034 7887 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR 1000 OHM B8409 645 034 7887 INDUCTOR 1000 OHM or 645 020 1813 INDUCTOR...

Page 40: ...JA 1 16W R8157 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8158 401 105 0405 MT GLAZE 100 JA 1 16W R8161 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8162 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8163 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8164 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8165 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8166 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8167 401 105 7909 MT GLAZE 0 000 ZA 1 16W R8168 ...

Page 41: ...ZE 4 7K JA 1 16W R8413 401 105 5301 MT GLAZE 4 7K JA 1 16W R8414 401 105 5301 MT GLAZE 4 7K JA 1 16W R8415 401 105 5301 MT GLAZE 4 7K JA 1 16W R8416 401 105 5301 MT GLAZE 4 7K JA 1 16W R8417 401 105 5301 MT GLAZE 4 7K JA 1 16W R8418 401 105 5301 MT GLAZE 4 7K JA 1 16W R8419 401 105 5301 MT GLAZE 4 7K JA 1 16W R8420 401 105 5301 MT GLAZE 4 7K JA 1 16W R8421 401 105 5301 MT GLAZE 4 7K JA 1 16W R8431...

Page 42: ...LAZE 33 JA 1 16W R8586 401 105 3901 MT GLAZE 33 JA 1 16W X8001 645 042 2157 OSC CRYSTAL 27 000MHZ 27MHZ_OSC L9001 645 001 5427 INDUCTOR 2 2U M Q1002 405 014 4509 TR 2SC2412K R or 405 146 2206 TR KTC3875 GR or 405 146 2107 TR KTC3875 Y or 405 011 1006 TR 2SC1623 L6 Q1003 405 014 4509 TR 2SC2412K R or 405 146 2206 TR KTC3875 GR or 405 146 2107 TR KTC3875 Y or 405 011 1006 TR 2SC1623 L6 Q1004 405 035...

Page 43: ...401 105 0405 MT GLAZE 100 JA 1 16W R2432 401 105 0405 MT GLAZE 100 JA 1 16W R2435 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2437 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2439 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2441 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2443 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2445 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2447 401 105 7909 MT GLAZE 0 000 ZA 1 16W R2449 401 105 7909 MT G...

Page 44: ...3 MT GLAZE 10K JA 1 16W R5242 401 105 0603 MT GLAZE 10K JA 1 16W R5243 401 105 0603 MT GLAZE 10K JA 1 16W R5244 401 105 0603 MT GLAZE 10K JA 1 16W R5247 401 105 0603 MT GLAZE 10K JA 1 16W R5248 401 105 0603 MT GLAZE 10K JA 1 16W R5249 401 105 0603 MT GLAZE 10K JA 1 16W R5250 401 105 0603 MT GLAZE 10K JA 1 16W R5251 401 105 5301 MT GLAZE 4 7K JA 1 16W R5252 401 105 5301 MT GLAZE 4 7K JA 1 16W R5253...

Page 45: ...IA7805API or 409 145 2809 IC NJM7805FA IC492 409 492 4600 IC PQ1CY1032ZZ IC495 409 463 6701 IC KIA7805API or 409 145 2809 IC NJM7805FA L4070 645 038 7364 INDUCTOR 70U SS or 645 038 6053 INDUCTOR 181U KR or 645 017 8061 INDUCTOR 181M KR L4901 645 043 9940 INDUCTOR 45U L4902 645 043 3054 INDUCTOR 10U L4903 645 043 3054 INDUCTOR 10U L4904 645 043 3054 INDUCTOR 10U LG441 645 023 8987 FIXER PR490 645 0...

Page 46: ...L4372 645 006 9864 INDUCTOR 80U KR L4471 645 031 7835 INDUCTOR 10U K L4472 645 006 9864 INDUCTOR 80U KR LG401 645 023 8987 FIXER LG402 645 023 8987 FIXER LG403 645 023 8987 FIXER LG404 645 023 8987 FIXER PR439 645 027 4169 PROTECTOR 0 125A 125V or 645 042 2584 PROTECTOR 0 125A 125V PR458 645 042 2553 PROTECTOR 0 63A 125V PR459 645 042 2676 PROTECTOR 2 5A 125V Q4380 405 141 1402 TR KTD863 GR or 405...

Page 47: ... DM13 412 047 3904 SPECIAL SCREW LOADING GEAR FIX DM14 614 237 7079 GEAR LOADING GEAR DM15 411 020 9902 SCR S TPG BRZ FLG 3X8 GEAR A112 FIX DM16 614 300 5131 GEAR LOADING CUM GE DM17 614 237 7208 SLIDE BASE UP DOWN DM18 614 310 2014 CHASSIS LOADING CHASSIS DM19 645 032 4352 ASSY LOADING MOTOR DM21 411 022 8408 SCR S TPG PAN 2X8 SW PWB FIX DM22 614 310 2175 TRAY TRAY DM23 614 310 6548 ASSY MECHA KI...

Page 48: ...ote 1 H L Qn 2 1 3 4 5 6 7 13 14 12 11 10 9 8 CLR1 CLR1 D1 D1 PR1 PR1 Q1 GND Vcc CLR2 CLR2 CK2 PR2 PR2 Q2 CK1 Q1 Q1 Q1 D2 D2 Q2 Q2 Q2 CK1 CK2 Clear Preset No Change IC105 74VHC74MTC FLIP FLOP IC BLOCK DIAGRAM DESCRIPTION 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 VDD DQ0 DQ1 VSSQ DQ2 DQ3 VDDQ DQ4 DQ5 VSSQ DQ6 DQ7 VDDQ LDQM WE CAS PAS CS A11 A10 A0 A1 A2 A3 VDD VSS DQ15 DQ14 ...

Page 49: ...t Row Address Strobe The RAS signal defines the operation commands in conjunction with the CAS and WE signals and is latched at the positive edges of CLK When RAS and CS are asserted LOW and CAS is asserted HIGH either the BankActivate command or the Precharge command is selected by the WE signal When the WE is asserted HIGH the BankActivate command is selected and the bank designated by BS is tur...

Page 50: ...c signals Dual Function FIELD Mode 1 and VSYNC Mode 2 Control Signal This pin may be configured to output Master Mode or accept Slave Mode these control signals Video Blanking Control Signal The pixel inputs are ignored when this is Logic Level 0 This signal is optional This pin can be configured as an input by setting MR22 and MR21 of Mode Register 2 It can be configured as a subcarrier reset pin...

Page 51: ... Rch Analogue power output 12 GNDA Analogue ground 13 VCA Analogue power source 5V 14 VOUTL O Lch Analogue power output 15 CAP Output amplifier common 16 BCKIN I Bit clock input for data 17 DIN I Data input 18 LRCIN I Basic sampling clock input 19 NC N C 20 RSV N C 21 VDD Digital power source 5V 22 GNDD Digital ground 23 GNDP PLL ground 24 XTO Crystal oscillator IC112 113 74VHC244MTC LINE DRIVER V...

Page 52: ...1 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 16...

Page 53: ...Input output port P1 Single chip mode same function of port P0 Memory extension or micro processor mode in output under data 8 bits D0 D7 I O P20 P27 Input output port P2 Single chip mode memory extension ormicro prosessor mode BYTE is high use external data bus width is 8 bits width same function of port P0 Memory extension or micro processor mode BYTE is low use external data width is 16 bits wi...

Page 54: ...1 DRIVER CH1 DRIVER CH1 DRIVER CH1 GAIN NOT USED NOT USED CH1 4 MUTE CONTROL GND NOT USED VCC CH2 NOT USED DRIVER CH2 LOARDING DRIVER CH2 LOARDING SUB STRAIGHT GND LOARDING REV LOARDING FWD DRIVER CH3 DRIVER CH3 LOARDING DRIVER CH3 VCC CH3 VCC CH1 4 BIAS DRIVER CH4 GAIN DRIVE CH4 DRIVER CH4 DRIVER CH4 SUB STRAIGHT GND OUT 1 OUT 2 IN 1 1 IN 1 2 NC NC MUTE GND NC VCC2 NC OUT2 2 OUT2 1 GND REV FWD OU...

Page 55: ...dress Flush Bank Address Flush Bank Block Address Flush Bank Sector Sddress Data Input Output Chip Enable Output Enable Write Enable Power Supply Ground No Connection Selects bank 1 when L and bank 2 when H Sapply address for flush bank Select flush bank for erease Select flush bank sector for erease To activate the flush bank when CE is low To activate the data output buffer To control the write ...

Page 56: ... Array Pin Name 10 20 29 25 23 21 7 32 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A10 DQ7 DQ6 DQ5 DQ4 DQ3 Vss DQ2 DQ1 DQ0 A0 A1 A2 A3 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 WE OE CE A16 A0 DQ7 DQ0 CE OE WE Vcc Vss NC Address Inputs Data Input Output Chip Enable Output Enable Write Enable Power Supply Ground No Connection IC550 LE28C1001ATS FLASH MEMORY IC211 TA8176SN FM Frontend MIXER Buff...

Page 57: ...IDER SWALLOW COUNTER 1 16 1 17 4bits 12bits PROGRAMMABLE DIVIDER DATA SHIFT REGISTER LATCH 1 2 CCB I F POWER ON RESET IC450 LC75342M 2 Band Equalizer CONTROL CIRCUIT LOGIC CIRCUIT CCB INTERFACE CONTROL CIRCUIT 15 14 16 17 18 19 20 21 22 24 25 26 23 10 9 7 6 5 8 11 L4 L3 L2 L1 NC NC R1 R2 R3 R4 RSELO RIN RTRE RBASS1 RBASS2 ROUT LSELO LIN LTRE LBASS1 LBASS2 LOUT TEST VSS CE DI CL VDD Vref NC 12 13 1...

Page 58: ...RATOR ROW DECODER 512 512 512x512x16 MEMORY ARRAY DATA OUT BUFFER COLUMN DECODER SENSE AMPLIFIERS VO GATING 512x16 IC201 T224162B DRAM IC231 LA1844ML AM FM ZF MPX FM IF FM DET LEVEL DET S CURVE AM FM IF BUFF REG GND COMP TUNING DRIVE AM IF AM DET VCC AGC PILOT CANCEL PILOT DET DECODER ANTI BIRDIE STEREO SW FF 38k FF 19k VCO 304kHz AM RF AMP AM MIX AM OSC ALC BUFF P DET φ FF 19k 2 π 1 2 3 4 5 6 7 8...

Page 59: ...UB WOOFER OUT AUX IN1 R L SPEAKERS R L CN471 CN439 2P CN470 4P CN480 4P CN455 24P CN450 10P CN451 5P CN474 12P CN494 3P CN404 3P CN495 5P FU499 T500mA L 250V CN484 6P CN407 3P CN475 10P BOARD TO BOARD BOARD TO BOARD BOARD TO BOARD BOARD TO BOARD BOARD TO BOARD BOARD TO BOARD CN485 5P CN449 PHONES CN 4P CN603 8P CN602 2P CN601 24P CN682 AUX IN2 SLED MOTOR SPINDLE MOTOR LIMIT SWITCH DVD MECHANISM FR...

Page 60: ... 8 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK This is a basic signal check CDRF DVDRF DVD LASER POWER CONTROL CD LASER POWER CONTROL TE FE FE BH PH DVD CD RF DVD CDRF BH DEFECT ...

Page 61: ...DING LOADING LOADING FOCUS SERVO FOCUS SERVO FOCUS SERVO FOCUS SERVO FOCUS SERVO FOCUS SERVO TRACKING SERVO TRACKING SERVO FOCUS SERVO TRACKING SERVO TRACKING SERVO TRACKINGN SERVO SLED SLED SLED SPINDLE SPINDLE FOCUS SERVO TRACKINGN SERVO SPINDLE This is a basic signal check ...

Page 62: ... 10 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK This is a basic signal check RF Egualization RF Egualization RF Egualization RESET CD DVD RESET Adjustment Adjustment ...

Page 63: ...24 TP204 3 3V TP229 TP206 TP252 TP250 TP249 TP248 TP247 TP246 TP251 TP604 TP211 TP121 TP101 VREF GND M 9V GND A 5Va GND D 5Vb TP122 TP104 TP124 TP105 TP106 TP107 TP102 TP226 TP602 TP601 TP608 TP607 DVD P W BOARD OPERATION WIRING DIAGRAM FOR SIGNAL CHECK B B side This is a basic signal check TP202 TP201 TP254 ...

Page 64: ... 24 17 1 2 3 4 5 8 10 11 12 14 13 15 50 51 52 53 54 55 56 57 58 59 60 61 62 64 63 65 72 73 70 71 68 69 66 67 7 22 MPEG P W BOARD SCHEMATIC DIAGRAM FOR WAVEFORM CHECK This is a basic waveform check ...

Page 65: ... 25 17 6 16 17 17 20 19 17 17 21 18 AMP P W BOARD SCHEMATIC DIAGRAM FOR WAVEFORM CHECK This is a basic waveform check ...

Page 66: ...ent FM ANT IC231 3 22pin 98 0MHz XF233 0 0 0 05V SG 66dB μV TP24 TP25 2 Cover Connect Digital DC voltmeter to 87 5 MHZ Low L2102 1 1 0 1V voltage TP11 H TP12 E 108 0 MHZ High less than 9 0V 3 Tracking Connect FM SG to FM Antenna Connect to VTVM 90 0 MHZ Low L2101 Max SG 8dBμV TP13 L or TP14 R TP15 E 106 0 MHZ High 2 AM Step Adjusting Connection SG Set Adjustment Remark Circuit Input Output Frequen...

Page 67: ... 65 SCHEMATIC DIAGRAM MPEG This is a basic schematic diagram ...

Page 68: ... 66 WIRING DIAGRAM MPEG A SIDE ...

Page 69: ... 67 WIRING DIAGRAM MPEG B SIDE ...

Page 70: ...ignated components in which safety can be of special significance When replacing a component identified by use only the replacement parts designated or parts with the same ratings of resistance wattage or voltage that are designated in the parts list in this manual Leakage current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circu...

Page 71: ... 69 WIRING DIAGRAM POWER AMP for SS ...

Page 72: ... 70 WIRING DIAGRAM PRE AMP for SS ...

Page 73: ...ignated components in which safety can be of special significance When replacing a component identified by use only the replacement parts designated or parts with the same ratings of resistance wattage or voltage that are designated in the parts list in this manual Leakage current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circu...

Page 74: ... 72 WIRING DIAGRAM POWER AMP for KR ...

Page 75: ... 73 WIRING DIAGRAM PRE AMP for KR ...

Page 76: ... 74 SCHEMATIC DIAGRAM TUNER This is a basic schematic diagram ...

Page 77: ... 75 WIRING DIAGRAM TUNER ...

Page 78: ... 76 SCHEMATIC DIAGRAM FRONT This is a basic schematic diagram ...

Page 79: ... 78 SCHEMATIC DIAGRAM DVD This is a basic schematic diagram ...

Page 80: ... 79 WIRING DIAGRAM DVD A SIDE WIRING DIAGRAM DVD B SIDE ...

Page 81: ... 80 WIRING DIAGRAM LED VOL REG for SS REG for KR MECHA SW and MECHA M LED MECHA M MECHA SW VOL REG SS REG KR ...

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Summary of Contents for DC-DAV821

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Sanyo DC-DAV821, Service Manual, Page: 17 / 81

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Summary of Contents for DC-DAV821

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