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SERVICE MANUAL

COMPACT DISC STEREO

SYSTEM

LCX-157

S/M Code No. 09-003-340-1R1

EZ(S)

REVISION

This Service Manual is the "Revision Publishing" and replaces "Simple Manual"

(S/M Code No. 09-003-340-1T1).

BASIC TAPE MECHANISM : TN-21ZSC-2003
BASIC CD MECHANISM : DA11T3C

Содержание LCX-157

Страница 1: ...SC STEREO SYSTEM LCX 157 S M Code No 09 003 340 1R1 EZ S R E V I S I O N This Service Manual is the Revision Publishing and replaces Simple Manual S M Code No 09 003 340 1T1 BASIC TAPE MECHANISM TN 21ZSC 2003 BASIC CD MECHANISM DA11T3C ...

Страница 2: ...2 SPECIFICATIONS Design and specifications are subject to change without notice ...

Страница 3: ...fiés peut entraîner une dangereuse exposition aux radiations ADVARSEL Usynlig laserståling ved åbning når sikkerhedsafbrydereer ude af funktion Undgå udsættelse for stråling This Compact Disc player is classified as a CLASS 1 LASER product The CLASS 1 LASER PRODUCT label is located on the rear exterior This set employs laser Therefore be sure to follow carefully the instructions below when servici...

Страница 4: ... 35 SME C122 87 010 213 080 C CAP S 0 015 50 B C123 87 010 196 080 CHIP CAPACITOR 0 1 25 C124 87 010 402 080 CAP ELECT 2 2 50V C126 87 010 408 080 CAP ELECT 47 50V C127 87 010 248 080 CAP ELECT 220 10V C128 87 010 393 080 CAP ELECT 100 35V C129 87 010 248 080 CAP ELECT 220 10V C130 87 010 393 080 CAP ELECT 100 35V C131 87 010 393 080 CAP ELECT 100 35V C132 87 010 237 080 CAP ELECT 1000 16V C136 87...

Страница 5: ...87 010 196 080 CHIP CAPACITOR 0 1 25 C828 87 010 196 080 CHIP CAPACITOR 0 1 25 C829 87 010 196 080 CHIP CAPACITOR 0 1 25 C909 87 012 286 080 CAP U 0 01 25 C910 87 012 286 080 CAP U 0 01 25 C940 87 012 286 080 CAP U 0 01 25 C942 87 012 172 080 CAPACITOR CHIP U 10P CH C947 87 012 286 080 CAP U 0 01 25 C949 87 A10 039 080 C CAP U 470P 50 J CH C952 87 012 286 080 CAP U 0 01 25 C958 87 010 197 080 CAP ...

Страница 6: ...080 C CAP S 27P 50 CH C560 87 010 263 080 CAP ELECT 100 10V C561 87 010 196 080 CHIP CAPACITOR 0 1 25 C562 87 010 196 080 CHIP CAPACITOR 0 1 25 C563 87 012 156 080 C CAP S 220P 50 CH C565 87 010 263 080 CAP ELECT 100 10V C566 87 010 196 080 CHIP CAPACITOR 0 1 25 C568 87 010 197 080 CAP CHIP 0 01 DM C571 87 010 248 080 CAP ELECT 220 10V C572 87 010 196 080 CHIP CAPACITOR 0 1 25 C573 87 010 197 080 ...

Страница 7: ...S G 2SK543 8 8 A Resistor Code Chip Resistor Part Coding Figure Value of resistor Chip resistor Wattage Type Tolerance 1 16W 1 10W 1 8W 1608 2125 3216 5 5 5 CJ CJ CJ Form L W t 1 6 0 8 0 45 2 1 25 0 45 3 2 1 6 108 118 128 A A CHIP RESISTOR PART CODE 0 55 Resistor Code Dimensions mm Symbol 1 16W 1005 5 CJ 1 0 0 5 0 35 104 L t W ANODE CONNECTION FL 13 ST 36GNAK GRID ASSIGNMENT ANODE CONNECTION GRID ...

Страница 8: ...S J801 ANTENNA J101 AUX DC JACK R L L R FM 75Ω COXIAL MW LW LOOP 1 2 PT101 POWER TRANSFORMER 1 2 3 4 5 6 7 8 1 15 16 30 1 30 29 11 1 12 22 2 1 8 1 9 1 4 7 10 13 16 18 TO FRONT C B CN201 RCH RPH LCH EH M1 DECK MOTOR S1 MOTOR SW S3 PLAY SW M 8 7 6 5 4 3 2 1 NOTE E C B E C B E C B MAIN C B CHIP PARTS AC C B CHIP PARTS 1 1 12 13 24 4 5 8 C182 C181 ...

Страница 9: ...12 11 IC BLOCK DIAGRAM IC M62495AFP IC LA6541D IC LA1837NL IC LC72131D ...

Страница 10: ...AC C B 1 2 AC C B 2 2 R SIGNAL PB FM REC AM J105 INV IC301 CASSETTE PER AMP BIAS OSC BEAT CUT REG REG REG REG REG SW HOLD DET HOLD DET POWER AMP IC102 FUNCTION SWITCH POWER CONT POWER ON OFF J101 JACK PIN 3P MSP J101 JACK 3 5 ST PHONES SPEAKERS F101 3 15A 250V 230V 50Hz 470 35 820 820 ...

Страница 11: ...2 MAIN C B 2 2 R R FM IF LW ANT SW MW LW SW AM RF AMP LW OSC SW AM IF ADJ DC BALANCE ADJ IC771 FM AM IF STEREO TUNER SYSTEM SIGNAL PB FM REC AM BAND SW D942 D944 L773 2 2µH TUNER ON OFF SWITCH 0 015 0 015 EZ K BEAT VM 5V FM 75Ω MW LW LOOP J801 ANTENNA ...

Страница 12: ...D PARTS FRONT C B INSERTED PARTS LED C B INSERTED PARTS 1 1 2 3 1 3 1 5 10 15 20 25 30 35 40 43 ROCK JAZZ POP AUX POWER SET TUNER BAND STOP START TIMER SLEEP REMOTE SENSOR PLAY CLEAR PAUSE TO MAIN C B J105 1 3 1 6 1 5 15 16 20 25 30 10 1 1 2 2 15 16 S101 DOOR SW 29 30 LCD201 DISPLAY Cxxx Rxxx NOTE E C B E C B ...

Страница 13: ... C D E F G H I J K 20 19 WIRING 3 CD FRONT CHIP PARTS CD C B CHIP PARTS FRONT C B CHIP PARTS LED C B CHIP PARTS MOTOR C B PIN3 M3 SW1 _ M2 M3 SPINDLE MOTOR SW1 INSIDE LIMIT SW M2 SLED MOTOR _ CN510 1 1 2 16 15 6 OPTICAL PICK UP SF P101NR ...

Страница 14: ...22 21 SCHEMATIC DIAGRAM 3 FRONT ...

Страница 15: ...24 23 SCHEMATIC DIAGRAM 4 CD ...

Страница 16: ...26 25 VOLTAGE CHART ...

Страница 17: ...28 27 ...

Страница 18: ...30 29 ELECTRICAL ADJUSTMENT ...

Страница 19: ...nal to noise ratio More than 38dB Input 74dB at 999kHz Distortion Less than 3 0 Input 74dB at 999kHz Auto stop level 50 10 15dB at 999kHz Intermediate frequency 450kHz PRACTICAL SERVICE FIGURE LW SECTION Sensitivity 58 5dB at 144kHz 55 5dB at 198kHz 52 5dB at 290kHz Signal to noise ratio More than 25dB at 198kHz Intermediate frequency 450kHz DECK SECTION Tape speed 3000Hz 3 2 Wow flutter Less than...

Страница 20: ...CD control CD control open drain output Clock shift output L during shift open drain output 8 Hz time base input Reset input Input pin Output pin for 32 768kHz crystal oscillation GND Main clock input output 5 76 MHz 5V KEY0 A D input KEY1 A D input RDS signal level input A D input CD control CD door SW detection SW input L at CLOSE CD pick up detection SW input L at ON Tape detection SW input A D...

Страница 21: ... O O Tape stop input LCD common output Initial setting input Beat selector output H during selection CMOS output GND 5V Not used Tuner chip enable output CMOS output H output during CD function CMOS output H output during TU function Open drain output REC mute output H during mute Open drain output REC PB select output H during PB Open drain output Mute output H during mute Open drain output Power...

Страница 22: ...nts are connected between the TD and VR pins Tracking phase compensation setting pin Tracking jump signal kick pulse amplitude setting pin Tracking control signal output pin Focusing control signal output pin Pin to which external focusing phase compensation constants are connected between the FD and FA pins Pin to which external focusing phase compensation constants are connected between the FD a...

Страница 23: ...the DSP Digital system GND Output pin to which external focus search smoothing capacitor is connected Tracking Balance Control EF balance variable range setting pin No connection Disc defect detector output pin Reference clock input pin 4 23 MHz of the DSP is input Microprocessor command clock input pin Microprocessor command data input pin Microprocessor command chip enable input pin Detect RF RF...

Страница 24: ...t L Track detect signal input pin Schmidt input Tracking error signal input pin Schmidt input Tracking OFF output pin Tracking gain selection output pin Gain boost at L Track jump control signal output pin Three level output is possible using command EFM data playback clock monitoring pin 4 3218 MHz when phase is locked in Sync signal detection output pin H when the sync signal which is detected f...

Страница 25: ...the 7 35 kHz sync signal which is generated by dividing frequency of crystal oscillator Subcode Q output standby output pin Read write control input pin Schmidt input Subcode Q output pin Command input pin from microprocessor Command input read clock or subcode read input clock from SQOUT pin LC78622 reset input pin Set this pin to L once when the main power is turned on Test signal output pin Use...

Страница 26: ...OWER 13 8A CLB 010 010 KEY SKIP 14 8A CLB 011 010 KEY P S 15 8Z CDB 170 010 BASE CHUCK 16 88 CD9 211 210 RING CHUCK 17 87 036 368 010 MAGNET 18 8A CLB 002 010 LID CD 19 8Z CL8 683 010 CONN ASSY 2P CD DOOR 20 8Z CL8 205 010 SPR T CD 21 8A CLB 003 010 CHAS CD 22 M8 ZZK E90 070 DA11T3C 23 88 CT6 206 010 CUSHION CD 24 8Z CL8 681 010 CONN ASSY 6P CD MOTOR 25 8A CLB 020 010 CABI REAR 26 8Z CL8 682 010 F...

Страница 27: ...VIEW 1 1 1 2 3 5 6 4 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 23 24 25 26 27 28 29 7 HT SINK CHAS MAIN TN 21ZSC P C B P C B a a b b C C D D C H C D C C C C D F 31 D G G 34 33 F 32 35 36 30 B B E E A A A H H H H A A P C B ...

Страница 28: ...7820MVEI 26 S1 921 140 240 REW BUTTON LEVER 27 S1 921 140 250 FF BUTTON LEVER 28 S1 921 140 260 STOP BUTTON LEVER 29 S1 921 140 610 PAUSE BUTTON LEVER 30 S1 821 100 700 FF GEAR 31 S1 921 050 060 SENSER 32 S1 921 053 100 TAKE UP REEL ASSY 33 S1 829 100 010 PACK SPRING 34 S1 921 050 150 S REEL HUB 35 S1 921 050 220 BACK TENSION SPRING 36 S1 921 140 220V REC BUTTON LEVER 37 S1 921 140 170 P S LEVER S...

Страница 29: ...ECHANISM PARTS LIST 1 1 1 S2 121 A28 400 COVER GEAR 2 S2 511 A21 000 GEAR MIDDLE 3 S2 511 A21 100 GEAR DRIVE A S1 PN2 03R OSE SCR PAN PCS 2 3 B 87 261 073 410 SCR S TPG FLT 2 6 6 ALL M8 ZZK E90 070 DA11T3C B B A A SHAFT SLIDE 1 2 3 MOTOR C B SPINDLE MOTOR M3 CHASSIS SF P101NR ...

Страница 30: ...4 110 CORD SPKR GRY The speakers that are supplied with the following models are dedicated speakers for their respective models Speakers of LCX 137 and those of LCX 157 have completely the same outside appearance but have no compatibility each other Therefore be careful not make mistake when using the speakers of the following models Speaker wire color is gray 8Z CL8 904 110 Speaker wire color is ...

Страница 31: ...NO KANRI DESCRIPTION NO ACCESSORIES PACKAGE LIST 1 8A CLB 906 010 IB EZ 9L B 2 87 A90 030 010 ANT LOOP AM NC C 3 87 A90 118 010 ANT WIRE FM Z 4 87 A91 017 010 PLUG CONVERSION JT 0476 5 8A CLB 961 010 RC UNIT RC AAT11 ...

Страница 32: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 737004 Printed in Singapore ...

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