C 542 C 542 DISC PLAYER COMPACT SERVICE MANUAL NAD C O M PA C T DISC PLAYER
SAFETY INFORMATION CAUTION CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND VARING - OSYNLING LASERSTRÅLNING NÄR DENNADEL ÄR ÖPPNAD OCH SPÄRRAR ÄR URKOPPLADE. STRÅLEN ÄR FARLIG. INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL - USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG VARO! - AVATTAESSAJASUOJALUKITUS OHITETTAESSAOLET ALTTIINANÄKTMÄTÖNTÄ LASERSÄTEILYLLE. ÄLÄ KAISO SÄTEESEEN. SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
SERVICE SAFETY PRECAUTIONS 1. Replacing the fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE. Reference No M507 M507 M512, M513 M512, M513 M514 M514 *AH *C *AH *C *AH *C Part Number 5120-0052-0 5120-0050-0 5120-0020-0 5120-0018-0 5120-0026-0 5120-0027-0 Description FUSE T1.6A 250V 5x20MM FUSE T1.6A 250V 5x20MM FU T1A 250V UL/CSA 5x20MM FU T1A 250V SEMKO/VDE FU T315MA L 250V UL/CSA FU T315MA L 250V NOTE: <*AH > : USA, CANADIAN MODEL ONLY.
SPECIFICATIONS Disc Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Disc, 120 or 80 mm Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BURR-BROWN Delta Sigma 24bit Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Times oversample Analog Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 pole active Frequency Response . . . . . . . . . . . . . . . . . . . . .
REAR PANEL / FRONT PANEL REAR PANEL NAD LINK DIGITAL OPTICAL OUT DIGITAL OUT OUT ' 2003 NAD C 542 TRIGGER SWITCH 1. 2. 3 4. IR IN IN 4 5 OFF AUTO IN 6 7 5. 6. 7. LINE OUT DIGITAL OPTICAL & COAXIAL OUTPUT NAD LINK IN / OUT IR INPUT TRIGGER IN TRIGGER SWITCH AC LINE CORD FRONT PANEL 12 NA D Compact Disc Player C 542 SEC 7 9 11 PLAY PAUSE STOP RANDOM SKIP OPEN TIME REPEAT SCAN 4 6 8 10 6 7 8 9 10 ' 2003 NAD C 542 MIN 5 1 1. 2. 3. 4. 5. 6.
DISASSEMBLY INSTRUCTIONS 1. Remove machine screws M 4.0 x 6.0 ( 1 to 4 ) from the side panels. Remove tapping screw 3.0 x 8.5 ( 5 )from the back panel. Refer to Figure No.1. 5 4 3 2 Figure No.1 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. 7 6 Figure No.2.
-7- PICK UP PU-IN LIMIT SWITCH SLED MOTOR SPINDLE MOTOR LOADING MOTOR LIMIT SWITCH LOADING MOTOR DISCO DISW CD MECHANISM UNIT 5V Q101 D501-D504 RECTIFIER DIODES -12V D514-D517 RECTIFIER DIODES +12V U502-3,U506 ANALOGUE POWER +5V U501,U507 DIGITAL POWER +8V DISC K501 RELAY D506-D508 RECTIFIER DIODES M500 11 U101 CX2581 RF AMP 25 12 Q103 Q310 2 16 17 15 U202 BA6392 12 13 1 M106 M110 Q312 24 19 20 10 9 5 4 28 18 16 15 SPDR TFDR TRDR FFDR FRDR SFDR SRDR RFD
-8- LIVE BOARD LIVE NEUTRAL BROWN RED BLACK M502 M301A DISPLAY BOARD LED BOARD TRANSFORMER M506A CD MECHANISM MAIN BOARD M101 (5PIN) M105A (6PIN) M102 (16PIN) M505A KEY BOARD M120A WIRING DIAGRAM
RF PATTERN TESTING NAD - C 542 PCB TESTING POINTS DIAGRAM TESTING PROCEDURE (1) Load the test disc (Sony Test CD YEDS-7) and set the unit into PLAY mode. (2) Connect the scope to R227 (Pin 15 of U101) and DGND (J144). 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 3T 4T 5T — 11T FIG.
IMPORTANT NOTES INSTRUCTION FOR HANDLING OPTICAL SYSTEM BLOCK PICK-UP Electrostatic breakdown of the laser diode in the optical system block may occur due to a potential difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to prevent any electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a ground band (1M ohm) that is properly to remove any static electricity that may be charged on the body. 2.
PRECAUTIONS WHEN CHANGING LASER PICK-UP When removing the pick-up assembly, short circuit the PCB tracks on the optical block as show in the drawing in order to protect the pick-up before removal. NOTE: Replacement pick-up assemblies are supplied with the PCB pattern already protected. DO NOT REMOVE THE SHORT CIRCUITS UNTIL YOU HAVE FINISHED FITTING THE PICK-UP. Protective soldering place for laser diode Caution: Laser diodes are extremely susceptible to damage from static electricity.
PCB LAYOUT DISPLAY BOARD KEY BOARD LIVE BOARD LED BOARD - 12 -
MAIN BOARD - 13 -
M101 B.SCAN R304 2K M103 REPEAT M102 F.
CN202 C211 27p R211 R210 R209 CLOK SENS SCLK CLOK SENS SCLK SCOR R209 TP208 TP209 TP210 TP211 TP212 /GFS 100K SCOR 10K R212 R213 8K2 1K SFDR SRDR TFDR TRDR FFDR FRDR VC 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 R221 OPEN R222 0 V3V6 V3V6 /SQSO /SQCK /XRST /SYSM /DATA /XLAT /CLOK /SENS /SCLK 1K 1K 1K R207 V3V6 C207 0.1u VC R214 SPDR TP213 R219 C214 470p /XRST C226 0.33u/50V R215 4R7 C208 0.1u 1K C212 27p R217 15K R220 C213 0.
M101 5PIN 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 UNLD DI/SW DISCO FCSTRKTRK+ FCS+ VC VDD E D A B C F GND LD VR PD FCS+ TRK+ TRKFCS- M102 16PIN FCSTRKTRK+ FCS+ UNLD DI/SW DISCO DI/SW TRAYTRAY+ DISCO L102 10uH 1 2 VDD1 20K C106 100u/10V C107 100u/10V R104 20K R101 10 R103 Q101 8550 3 TP101 100u/10V C105 100u/10V C108 VC R122 1K 2 Q106B 2.2u/50V Q104 8550 2 1 2 C101 3 4 5 0.
104K C418 10u/6.3V D+5V A+5V C326 104K D+5V CLKO BCK PCMD LRCK 28 27 26 25 24 23 22 21 20 C417 104K C334 10u/16V DGND R320 470R DGND AGND EMPH 18 17 16 15 C321 10u/16V 19 (A) (A) C323 10u/25V C322 A+5V CLKO XTI XTO DGND VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (A) D+5V AGND C332 10u/25V C328 20p A-12V C371 470u/16V (A) 4 8 (A) C372 470u/16V Q308 SS8050 C329 20p DGND M302A 16.
POWER_SW M802 - 18 - 2 F2 F1 AC1 CORDEST 11 10 8 7 6 5 4 3 2 1 C713 0.022u M502 TRANSFORMER TOROID J801 230V J800 120V FERRITE RING ONLY IN C VERSION 4 9 M513 T1A 250V M512 T1A 250V M514 T315mA 250V M507 T1.
IC BLOCK DIAGRAM MAIN BOARD U101: CXA2581N A 8 7 6 AC SUM RFG 24 26 25 EQ + + EQ_ON/OFF 23 AC VCA RW/ROM VC 3 + RW/ROM 4 VC + DVcc DVcc BST RFC VFC 15 RFAC 30 DC_OFST 29 RFDCI 28 RFDCO 17 FEI 16 FE 18 TE 21 CEI 19 TE_BAL RW/ROM DVcc 20 CE 27 CH4OUTF F LEVEL SHIFT 3 REV 26 CH4OUTR R 4 CH1FIN 5 VREFIN 6 23 VBIN VREFOUT 7 22 VCC 8 V+ 7 OUT B 3 6 _In B 4 5 +In B Out A 1 -In A 2 +In A 190K + INTER FWD FACE V- 24 VSIN + - 100K 8 9 FWD INTER RE
4 SYSM 63 BCK 62 PCMD 61 LRCK 19 C2PO 15 WFCK 64 EMPH 18 GFS 37 XTSL 16 XUGF MAIN BOARD U201: CXD3017Q DAC Block 36 TES1 Clock Generator EFM demodurator RFAC 51 BIAS 50 Asymmtery Corrector 16K RAM FILO 54 80 LMUT Timing Logic 66 XTAI 67 XTAO 3rd-Order Noise Shaper Sub Code Processor Digital PLL 79 RMUT Serial-In Interface Over sampling Digital Filter XPCK 17 FILI 55 3 XRST D/A Interface ASYI 49 ASYO 48 35 TEST Error Corrector Digital OUT PWM PWM PCO 56 Digital CLV + - MDP 2
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 P20/BUZ02/FLD0 P21/FLD1 P22/FLD2 P23/FLD3 P24/FLD4 P25/FLD5 P26/FLD6 P27/FLD7 P00/FLD8 P01/FLD9 P02/FLD10 P03/FLD11 P04/FLD12 P05/FLD13 P06/FLD14 P07/FLD15 P10/FLD16 P11/FLD17 P12/FLD18 P13/FLD19 P14/FLD20 P15/FLD21 P16/FLD22 P17/FLD23 MAIN BOARD U301: M38B57MC 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 P30/FLD24 P31/FLD25 P32/FLD26 P33/FLD27 P34/FLD28 P35/FLD29 P36/FLD30 P37/FLD
VCC2L AGND2L VCC2R AGND2R MAIN BOARD U302: PCM1732 LRCIN 1 28 ML/I2S DIN 2 27 MC/DEM BCKIN BCKIN 3 LRCIN CLKO 4 26 MD/FSS 25 MUTE XTI 5 24 MODE 23 CS/1WO XTO 6 DGND 7 VDD 8 HDCD 9 PCM1732U DIN Serial Input I/F 22 RST 21 ZERO HDCD 8X Oversampling Digital Filter with 20 GAIN VCC2R 10 19 VCC2L AGND2R 11 HDCD Amplitude Decoding HDCD Hidden Code Recovery Enhanced Multi-level Delta Signal Modulator 17 EXTL EXTR 12 16 VOUTL AGND1 14 15 VCC1 ML/I2S MC/DEM MD/FSS CS/IWO MOD
TROUBLESHOOTING GUIDE SET POWER SWITCH TO ON. NO IS POWER TURNED ON ? CHECK FUSES M507, M512-M514 OPEN ? NO CHECK POWER SUPPLY CIRCUIT NORMAL ? YES YES YES NO CAN TRAY BE OPENED ? YES IS OSCILLATOR CIRCUIT OSCILLATING ? M507,M512-M514 DEFECTIVE NO IS THERE OPEN/ CLOSE KEY SIGNAL INPUT ? U401 PIN 66, 65 NO NO POWER SUPPLY PATTERNS OPEN OR U501-U507 DEFECTIVE. NO CRYSTAL X301 DEFECTIVE. M101 SWITCH, DEFECTIVE OR PATTERN AND CONNECTOR OPEN.
ELECTRICAL PARTS LIST Reference No. Part No.
Reference No. Part No. Description LED D304 3700-3517-RG LED RED/GREEN (L-469HGW) WIRE M301A 7703-1280-2004 CONN.ASSY 3P P2.5 L=280 1725-201B-0100 PCB MAIN N0A70C C542 LIVE ASSY PC BOARD *AH *CE PCB-N0A70C-LIVE PCB-N0A71C-LIVE PCB ASSY LIVE N0A70C PCB ASSY LIVE N0A71C SWITCH M802 5200-3151-0-01 POWER SWITCH 1725-201B-0100 PCB MAIN N0A70C C542 8910-0049-0 4132-1071-0 1806-2170-0 CAP400V 4700P TERMINAL PIN EMI FILTER TLN12UA PCB-N0A70C-MAIN PCB ASSY MAIN N0A70C 150F-104K-2-FC CC 50V 0.
Reference No. Part No.
Reference No. Part No. Description M301B M502 M505B M506B 2102-031S-004 2101-1811-0 2102-121S-004 2102-161S-004 3 PIN ST. WAFER 8P PIN CONNECTOR P=3.96 12P ST.WAFER 16P ST WAFER P=2.5 JACK M313,M315 M317 M318 M319 2113-1743-0 2113-1300-0 2113-1170-0 2113-1121-0 MONO JACK HTJ-035-12E 2P RCA JACK W/R AU 1P RCA JACK YL AU 2P RCA JACK Y/Y AU CRYSTAL M302 2300-1910-0 X'TAL 16.9344MHZ 2954-2608-3000 2954-3008-0000 SCREW BT 2.
Reference No. Part No.
Reference No. Part No. Description TRANSISTOR Q101,Q104,Q105 Q103,Q106,Q107,Q307-Q312 Q301-Q304 Q401,Q403 Q402 Q404 Q405 Q502 4860-0060-5 4860-0050-5 4860-1780-5 4860-0660-5 4851-012F-5 485A-114E-5 485C-114E-5 485A-950Y-5 TR TR TR TR TR TR TR TR SWITCH M314 5200-3171-0-01 DPDT SLIDE HEATSINK U501-U503,U506,U507 5400-9130-0 HEAT SINK FOR 7805 2438- WIRE M101 M102C M105A 7012-6536-0 7012-6232-0 7012-6538-0 CONN WIRE ASSY 5PIN P2.0 WIRE CON 16P P=1.0 CONN WIRE ASSY 6PIN P2.
MECHANISM EXPLODED VIEW WSL-2130CCM 27 11 10 3 1 24 (x2) 15 21 (x4) 9 28 29 30 22 (x2) 31 23 (x2) 8 26 (x4) 14 32 20 25 (x2) 26 25 (x2) 4 6 5 7 13 18 (x2) 12 17 2 16 19 - 30 -
MECHANISM EXPLODED VIEW PARTS LIST Item Part No.
M500 EXPLODED VIEW - 32 -
EXPLODED VIEW PARTS LIST Item Part No.
Item Part No. Description 0211 2904-3006-0000 SCREW M3X6 0213 2954-3008-3000 T3X8MM SELF TAPPING 0216 2954-3008-0000 TAPPING 3X8MM B-TITE 0218 2954-3008-0000 TAPPING 3X8MM B-TITE 0219 2904-3006-3000 SCREW M3X6 BINDING (BLK) 0225 2954-3008-0000 TAPPING 3X8MM B-TITE 0226 2954-2006-0000 TAPPING SCREW 2X6 0227 2954-2608-0000 SCREW BT 2.6X8 0228 2600-4008-0973 FLAT WASHER M4X0.8X9.
PACKING DIAGRAM ITEM 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. PART NO. DESCRIPTION 1435-8401-0-2 1490-3783-2 1497-1062-0 1497-1302-0 1497-1332-1 1497-1432-0 4301-7073-0 2103-7302-1 4060-0530-0 8912-0038-0 1405-2520-0 CARTON BOX C542 POLYFORM ENDCAP POLYBAG MANUAL POLYBAG POLYBAG EPE BAG (412) INSTRUCTION MANUAL RCA PLUG (MALE) GREENCELL 3A SIZE GP24G2 REMOTE CONTROL C521BEE WHITE PAPER Q’TY 1 2 1 1 1 1 1 1 2 1 1 Proprietary information for servicing purposes only.
COMPACT DISC PLAYER NAD ELECTRONICS INTERNATIONAL TORONTO SERVICE MANUAL C 542 © NAD 2003
