NAD C521 Скачать руководство пользователя | Manualshive

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5

REAR PANEL / FRONT PANEL

REAR PANEL

FRONT PANEL

1. LINE OUT

2. DIGITAL OUT

3. AC LINE CORD

1. POWER ON / OFF

2. DISC DRAWER

3. DISPLAY

4. OPEN

5. PLAY / PAUSE

6. TIME

7. STOP

8. REPEAT

9. RANDOM

10. SCAN Back (

) / Forward (

)

11. SKIP Back (

) / Forward (

)

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Содержание C521

Страница 1: ...NAD Schematics C 521 COMPACT DISC PLAYER C 521COMPACT DISC PLAYER ...

Страница 2: ...JASUOJALUKITUSOHITETTAESSAOLET ALTTIINANÄKTMÄTÖNTÄLASERSÄTEILYLLE ÄLÄKAISO SÄTEESEEN VORSICT UNSICHTBARELASERSTRAHLUNG TRITTAUS WENN DECKELGEÖFFNETUNDWENNSICHERHEITSVERRIEGELUNG ÜBERBRÜCKTIST NICHTDEMSTRAHLAUSSETZEN THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT A...

Страница 3: ...o the customer make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit Parts marked with the symbol are critical with regard to the risk of fire and electric shock Replace only with parts recommended by the manufacturer CONTENTS DESCRIPTION PAGE SPECIFICATIONS 4 REAR PANEL FRONT PANEL 5 DISASSEMBLY INSTRUCTIONS 6 BLOCK DIAGRA...

Страница 4: ...ignal Noise Ratio A Weight 100 dB De Emphasis on 100 dB De Emphasis off Channel Separation 1kHz 90 dB 10 kHz 80 dB Wow and Flutter Unmeasurable Quartz Crystal Accuracy Output Impedance 200 Output Level at 0 dB 2 2 V rms Digital Error Correction IRC with double error correction in C1 and C2 Digital Code Output Sony Philips Serial data format CONTROLS Play Pause Stop Random Skip Scan Open Time Repea...

Страница 5: ...NEL FRONT PANEL REAR PANEL FRONT PANEL 1 LINE OUT 2 DIGITAL OUT 3 AC LINE CORD 1 POWER ON OFF 2 DISC DRAWER 3 DISPLAY 4 OPEN 5 PLAY PAUSE 6 TIME 7 STOP 8 REPEAT 9 RANDOM 10 SCAN Back Forward 11 SKIP Back Forward ...

Страница 6: ...side panels Remove tapping screw 3 0 x 8 5 5 from the back panel Refer to Figure No 1 Figure No 1 2 Pull both sides of the TOP COVER slightly outwards 6 and tilt approx 35 and then remove in the direction as indicated by the arrow 7 Refer to Figure No 2 Figure No 2 5 4 3 1 2 7 6 6 ...

Страница 7: ...1 LA9240 ANALOG SIGNAL PROCESSOR SERVO TOFF TGL CLV CLV EFM U701 LB1641 MOTOR DRIVER U201 LA6541 FOCUS TRACKING MOTOR DRIVER LOADING MOTOR LOADING MOTOR LIMIT SWITCH SPINDLE MOTOR SLED MOTOR PU IN LIMIT SWITCH PICK UP DISC KEYBOARD M113 REMOTE SENSOR CD MECHANISM UNIT POWER TRANSFORMER AC POWER I P M110 M109 REPEAT M104 M111 M112 RANDOM M106 M101 M103 M102 TIME M108 Q101 DAC U306 U305 4 U501 U507 ...

Страница 8: ...M120 BLACK M500A BLACK M805 BROWN NEUTRAL LIVE M803 BROWN J402 M105 6 PINS M101 5 PINS MAIN BOARD TRANSFORMER BOARD DISPLAY BOARD LIVE BOARD CD MECHANISM KEYBOARD 115V J401 J404 230V J403 L401 J403 J406 J407 J402 J404 J401 1723 006A 0000 8V 0V 0V 8V 15V 0V 15V ISSUE B ...

Страница 9: ...he unit into PLAY mode 2 Connect the scope to R132 Pin 41 of U101 and DGND J334 Scope setting Coupling AC Vertical sensitivity 0 2 V div Horizontal time base 0 5 µS div 3 Observe the waveform is 2 0V p p 5 and the eye pattern is at its best shape see FIG 1 FIG 1 a FIG 1 b Poor eye pattern FIG 1 C Good eye pattern 3T 4T 5T 11T ...

Страница 10: ... BEAM EMISSION The laser beam of this unit is focused on the reflecting surface of the objective lens in the optical system block Therefore keep your eyes at least 12 inches 30 cm away from the objective lens when the laser diode is ON Operation Check Method for Laser Diode and Focus Search Function When the POWER switch is turned ON after the chucking plate is removed observe the objective lens a...

Страница 11: ...NTIL YOU HAVE FINISHED FITTING THE PICK UP Caution Laser diodes are extremely susceptible to damage from static electricity Even if a static dis charge does not ruin the diode it can shorten its life or cause it to work improperly When replac ing the pick up use a conductive mat a grounded soldering iron and so on to protect the laser diode from static damage Ground Conductive Wrist Band for Body ...

Страница 12: ...12 PCB LAYOUT TRANSFORMER BOARD LIVE BOARD KEY BOARD DISPLAY BOARD 115V J401 J404 230V J403 L401 J403 J406 J407 J402 J404 J401 1723 006A 0000 8V 0V 0V 8V 15V 0V 15V ISSUE B ...

Страница 13: ...14 13 MAIN BOARD ...

Страница 14: ...V 5V 0V 4 9V 4 9V 0V 5V 2 3V 2 2V 0V 0V 2 4V 2 3V 4 9V 4 9V 4 9V 0V 0V 1 4V 4 6V 0V 1 7V 5V 1 5V 0 3V 0V 2 3V 2 5V 2 5V 0V 0 4V 0V 0V 0V 0V 0V 0V 0V 4 9V 4 9V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 2 4V 2 4V 3V 1 6V 0V 1 8V 0V 2 4V 2 4V 5V 2 3V 0 2V 0V 4 9V 0V 0 7V 0 5V 0V 0V 7 8V 7 8V 0 7V 0 5V 0 06V 4 2V 1 2V 3V 2 4V 2 4V 2 1V 2 3V 2 3V 0V 0V 2 4V 2 5V 0V 5V 5V 0V 5V 0V 4 9V 0V 2 3V 0V 0V 2 4...

Страница 15: ...TGL EMPH LASER 16M 4 2M CS CONT EFLG FSX XIN XOUT XVDD XVSS CK2 RVDD RVSS MUTER RCHP RCHN LVDD LVSS LCHN LCHP TGL EFMO VVDD VVSS PDO ISET PCK TAI TST11 TST10 TSET1 TEST2 TEST3 TEST4 TEST5 VDD VSS 2K x 8 bit RAM RAM address generator Interpolation and muting Antishock interface Digital attenuator 8x oversampling digital filters Level meter Peak meter Crystal oscillator system Timing generation C1 A...

Страница 16: ...CIN DIN BCKIN CLKO XTI XTO DGND VDD VCC2R AGND2R EXT1R EXT2R VOUTR AGND1 28 27 26 25 23 21 19 17 24 22 20 18 16 15 ML DSD MC DM2 MC DM1 MUTE MODE CKSL DGND VDD VCC2L AGND2L EXT1L EXT2L VOUTL VCC1 A1 B1 Y1 A2 B2 Y2 GND VCC B4 A4 Y4 B3 A3 Y3 1 2 3 4 5 6 7 14 13 12 11 10 9 8 AMPLIFIER 1 OUTPUT INVERTING INPUT NON INVERTING INPUT V AMPLIFIER 2 V OUTPUT INVERTING INPUT NON INVERTING INPUT 1 2 3 4 8 7 6...

Страница 17: ...7 VG 4 26 Vo8 25 Vo7 24 GND 23 GND 22 GND 21 Vo6 20 Vo5 19 VG3 18 V IN3 17 CD 16 RES Level shift 4 Level shift 1 BTL AMP 4 BTL AMP 1 11K 11K 11K 11K Vcc BTL AMP 3 BTL AMP 2 Level Shift 3 Level Shift 2 Regulator RESET 19 U201 LA6541D P1 OUT1 VCC2 OUT2 P2 3 2 8 10 9 7 4 5 1 6 VCC1 VZ IN1 GND IN2 Predriver Input logic circuit U701 LB1641 ...

Страница 18: ...14 15 16 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 ROM S port K port M port SO port P port OSC1 OSC2 Reset function N port Carrier control circuit 8 bit reload timer timer 2 8 bit preset timer timer 2 Serial interface Base timer free running timer Alarm signal generator Watchdog timer PC OPG APG DPF STACK DP BNK RAM ACC ALU Breg Insert Stand by...

Страница 19: ...E CIRCUIT Q301 Q302 Q303 Q304 LINE OUT PLUG OR PATTERNS DEFECTIVE MUTE CIRCUIT DEFECTIVE IC U301 DEFECTIVE M101 SWITCH DEFECTIVE OR PATTERN AND CONNECTOR OPEN IS OSCILLATOR CIRCUIT OSCILLATING POWER SUPPLY PATTERNS OPEN OR U501 U504 U506 U507 DEFECTIVE IS THERE OPEN CLOSE KEY SIGNAL INPUT U401 PIN 21 22 IS LOADING MOTOR DRIVE CIRCUIT OPERATION NORMAL U701 PIN 2 10 CHECK OPEN CLOSE SIGNAL AT U401 P...

Страница 20: ...27 MECHANISM EXPLODED VIEW CD11CA ...

Страница 21: ... T1 0101 0014 0202 0003 U507 0211 U501 0005 0012 0224 0223 0020 0218 0002 0209 0201 0228 U503 M317 0226 U506 0205 0205 0013 0304 0208 0018 0202 0219 0225 0320 0008 0010 0226 0205 0001 0006 0021 0022 0023 0205 0019 0202 0007 0227 ...

Страница 22: ...1 8900 2166 0 REMOTE CONTROL HANDSET 1 42 1497 1302 1 REMOTE CONTROL POLYBAG 1 43 4301 4104 1 INSTRUCTION MANUAL 1 44 1497 1062 0 MANUAL POLYBAG 1 45 1435 4300 1 2 CARTON BOX 1 36 37 38 36 41 42 40 39 44 43 45 Proprietary information for servicing purposes only The information herein may not be used com mercially without the prior written agreement of NAD Electronics International Toronto Canada ...

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