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Sansui MICRO 750D, Руководство по обслуживанию, Страница: 1 / 42

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CONTENTS

SERVICE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

PRINTED CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-28

BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . 29-42

IC INTRODUCTION

SERVICE MANUAL

MODEL

CRO 750D

CAUTION : Before servicing this chassis, read the "PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS" section
on page 3 of this manual.

DVD and CD
PLAYER

Under license form Digital Theater Systems, Inc.

MI

Содержание MICRO 750D

Страница 1: ...5 6 21 REPLACEMENT PARTS LIST 29 42 IC INTRODUCTION SERVICE MANUAL MODEL CRO 750D CAUTION Before servicing this chassis read the PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS section on page 3 of this man...

Страница 2: ...SPECIFIED C R T ANODE CONNECTORS MUST BE USED DEGAUSSING SHIELDS ALSO SERVE AS AN X RAY SHIELD IN COLOR SETS ALWAYS RE INSTALL THEM 3 IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE...

Страница 3: ...Caution Note 1 Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitiv...

Страница 4: ...4...

Страница 5: ...Y 1 4 A750 KEY ASS Y A750 AMP ASS Y FM AM TFCE1E 11 1 XP3 XP13 2 XP2 XP10 XP1 XP5 1 10 1 12 KHL 232B LOADING ASS Y 1 6 1 24 9 5 13 12 1 24 1 6 1 6 1 12 1 12 DSM750 DECODER ASS Y 10 1 12 4 8 14 XP403 X...

Страница 6: ...log Input CD RF signal input D 61 OSP Analog Offset cancellation capacitor connecting 60 OSN Analog Offset cancellation capacitor connecting 86 RFOP Analog output RF positive output 85 RFON Analog out...

Страница 7: ...filter capacitor connecting 7 HRFRP Analog output High frequency RF ripple output 6 LRFRP Analog output Low frequency RF ripple output POWER 24 25 30 34 62 63 AVDD Power RF power 21 22 28 37 57 58 AG...

Страница 8: ...D1890 BLOCK DIAGRAM 8...

Страница 9: ...beam add input or RF level input 167 FEI Analog Input Focus error input 166 TEI Analog Input Tracking error input 165 TEZU Analog Input Tracking error zero crossing input 164 TEZISLV Analog Input Tra...

Страница 10: ...h Schmitt Input 50K pull up For non flash mode cycle address latch enable high active input from micro controller For flash mode cycle address latch enable high active output to control external 373 3...

Страница 11: ...pull up Host address bus This is the 3 bit binary coded address asserted by the host to access a register or data port in the device 107 PDIAG TTL I O 50K pull up Passed diagnostics 110 IOCS16 TTL Out...

Страница 12: ...TTL Input 50K Pull Down Test mode control pin high active Lag and Programmable I O Interface 145 FLAGD TTL I O Servo DSP flag 146 FLAGC TTL I O Servo DSP flag 147 FLAGB TTL I O Servo DSP flag 148 FLA...

Страница 13: ...ro controller Interface CSS Host Data FIFO ATAPI Packet FIFO Host MPEG Interface System Clock RFRPSLV TEZI TEZISLV HRFZC ADCVDD FEI TEI RFRP RFLEVEL ADIN ADCVSS SLCK SDEN SDATA FDO TRO FMO PWMOUT1 PWM...

Страница 14: ...ive low TWS 32 O Audio transmit frame sync SEL PLL 2 0 33 I Select Pll1 SEL PLL2 SEL PLL0 Clock Output 0 0 2 5 DCLK 0 1 3 DCLK 1 0 3 5 DCLK 1 1 4 DCLK TSD 3 0 38 37 36 33 O Audio transmit serial data...

Страница 15: ...lect 1 HCS3FX 153 O Host select 3 HIOCS16 151 I Device 16 bit data transfer HA 2 0 158 155 154 I O Host address bus VPP 159 I Peripheral protection voltage See App Note 2 HWR DCI_ACK 149 I O Host writ...

Страница 16: ...VS3811 BLOCK DIAGRAM 16...

Страница 17: ...O Host parallel port general purpose I O SDA 32 I O I C data SCL 33 IN I C clock input CVBS 44 CURRENT Composite video output Y 48 CURRENT Luminance analog output C 47 CURRENT Chrominance analog outp...

Страница 18: ...UT Zero Data Flag This pin is low when the input data is continuously zero for more than 65 535 cycles of BCKIN VOUTR 11 OUT Right Channel Analog Output AGND 12 GND Analog Ground VCC 13 PWR Analog Pow...

Страница 19: ...UT OUTPUT TRUTH TABLE BA6208 EXTERNAL DIMENSIONS 6 1 5 3 7 7 2 8 4 3 8 2 5 B O U T V C C G N D B I N AIN A O U T Q 1 8 Q 2 R 3 2 R28 R25 Q 7 R 3 1 R29 Q 4 Q5 D 1 R1 R 11 R 2 Q 1 Q 1 5 R 2 6 R30 Q 8 Q...

Страница 20: ...Hz LPF SW Controller ADD SUB L R L R Center Mode Modified B NR MCU Interface Delay Input Autobalance Noise Sequencer Adaptive Matrix RIN LOUT COUT ROUT SOUT LIN DATA SC K RE Q AUX1 10 MD1 MD2 SYSTEM B...

Страница 21: ...7n 100K 47u 22u 4 7M 100n 7 5K 7 5K 100n 100n 15K 15K 47K 47K 100n 680p 680p C10 C11 R7 R8 C15 C14 R10 C13 C12 R9 C9 C8 R6 R3 C7 C5 R5 R2 R4 R1 C6 C4 C3 C2 C1 78 77 76 75 74 73 72 71 70 69 68 67 66 IR...

Страница 22: ...A750 KEY CIRCUIT PRINTED CIRCUIT 22...

Страница 23: ...A750 POWER CIRCUIT 23...

Страница 24: ...A750 MIC CIRCUIT A750 PHONE CIRCUIT 24...

Страница 25: ...A750 AMP CIRCUIT 25...

Страница 26: ...A750 KEY BOARD A750 MIC BOARD A750 POWER BOARD 26...

Страница 27: ...A750AMP BOARD 27...

Страница 28: ...DSM750 DECODER BOARD 28...

Страница 29: ...5 24 185 1 S3288 CC 1 25 15 115 1 S3278 A750AMP OUTPUT WIRE 1 S3279 A750 OPEN CLOSE WIRE 1 S3281 A750 LOADING WIRE 1 S3282 A750 TRANSFORMER WIRE 1 S3283 A750 DECODER POWER WIRE 1 S0689b RC 750 REMOTE...

Страница 30: ...S3287 CC 0 5 24 185 1 S3288 CC 1 25 15 115 1 S3278 A750AMP OUTPUT WIRE 1 S3279 A750 OPEN CLOSE WIRE 1 S3281 A750 LOADING WIRE 1 S3282 A750 TRANSFORMER WIRE 1 S3283 A750 DECODER POWER WIRE 1 S0689b RC...

Страница 31: ...7 G0728 RT13 0 167W 4K7 S509 G6434 TOUCH 6 6 4 5 R518 G0728 RT13 0 167W 4K7 S510 G6434 TOUCH 6 6 4 5 R519 G0728 RT13 0 167W 4K7 S511 G6434 TOUCH 6 6 4 5 R520 G0731 RT13 0 167W 6K8 S512 a0633 POTENTIOM...

Страница 32: ...07 G0735 RT13 0 167W 10K 5 L403 a7005 100uH R408 G0735 RT13 0 167W 10K 5 L404 a7005 100uH R409 G0735 RT13 0 167W 10K 5 L405 a6272 20uH L406 a6272 20uH C401 a3525 CD110X 4700uF M 25V L407 a6272 20uH C4...

Страница 33: ...2JT R25 P11032 RC 03K512JT R76 P11067 RC 03K201JT R26 P11031 RC 03K392JT R77 P11013 RC 03K103JT R27 P11032 RC 03K512JT R78 P11024 RC 03K331JT R28 P11019 RC 03K104JT R79 P11067 RC 03K201JT R29 P11019 R...

Страница 34: ...5 P11012 RC 03K472JT R181 P11013 RC 03K103JT R126 P11032 RC 03K512JT R182 P11013 RC 03K103JT R127 P11031 RC 03K392JT R183 P11018 RC 03K473JT R128 P11013 RC 03K103JT R184 P11053 RC 03K562JT R129 P11025...

Страница 35: ...3K472JT R227 P11012 RC 03K472JT R615 P11142 RC 03K622JT R228 P11012 RC 03K472JT R616 P11012 RC 03K472JT R250 P11010 RC 03K202JT R620 P11018 RC 03K473JT R251 P11025 RC 03K681JT R627 P11019 RC 03K104JT...

Страница 36: ...T R731 P11059 RC 03K334JT R773 P11018 RC 03K473JT R732 P11013 RC 03K103JT R776 a0020 RT14 0 25W 75 5 R733 P11016 RC 03K243JT R778 P11009 RC 03K102JT R734 P11015 RC 03K153JT R779 P11003 RC 03K100JT R73...

Страница 37: ...T C14 a3508 CD110 4 7uF M 16V C60 a3635 CD110X 47uF M 16V C15 a3508 CD110 4 7uF M 16V C61 a3561 CD110X 470uF M 10V C16 P20005 GRM39CH470J50PT C62 a3561 CD110X 470uF M 10V C17 a3635 CD110 47uF 16V M C6...

Страница 38: ...1CX 10uF M 50V C164 a3639 CD11CX 100uF M 10V C109 P20035 GRM39F105Z10PT C165 a3637 CD11CX 47uF M 10V C110 P20083 GRM39B823K16PT C166 P20015 GRM39F104Z25PT C111 a3509 CD110X 10uF M 16V C167 a3639 CD11C...

Страница 39: ...50PT C685 a3509 CD110X 10uF M 16V C221 P20020 GRM39CH121J50PT C686 a3509 CD110X 10uF M 16V C222 a3609 CD110X 100uF M 16V C687 P20015 GRM39F104Z25PT C223 a3519 CD110X 100uF M 25V C688 P20015 GRM39F104Z...

Страница 40: ...C772 a3509 CD110X 10uF M 16V C724 P20040 GRM39B681K50PT C773 a3509 CD110X 10uF M 16V C725 P20043 GRM39B332K50PT C774 a3509 CD110X 10uF M 16V C726 a3609 CD110X 100uF M 16V C775 a3635 CD110X 47uF M 16V...

Страница 41: ...V23 P5700 2SB709 L48 P6659 BGH2012B601 V25 P5700 2SB709 L49 P6659 BGH2012B601 V26 P5073a 2SD601AR V27 P5073a 2SD601AR VD1 P1200 ISS355 V28 P5073a 2SD601AR VD2 P1200 ISS355 V29 P5073a 2SD601AR VD3 P12...

Страница 42: ...0 NJM4558M N10 a4709 PT2257 N11 a4503 PT2399 N12 P4530 NJM4558M N14 P4530 NJM4558M N16 a4571 CW7805CS N17 a4571 CW7805CS N18 a4636 CW7905CS N19 a4710 PQ12RD11 N20 a4571 CW7805CS N24 P4633 BU4052BCF N2...

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