Nad-S-570-Service-Manual(1) 电路图 维修手册.pdf

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1、NAD SERVICE MANUALS570 S570 DVD / VCD / CD PLAYER DVD / VCD / CD PLAYER DRAFT DATE: 1 DEC, 2003 RadioFans.CN 收音机爱 好者资料库 1-4 PRPDUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS CAUTION: DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANYWAY. NEVER PERFORM CUSTOMINIZED INSTALLATIONS WITHOUT MANUFACTURER S

2、 APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLOWING SAFETY CHECKS AND SERVICING GUIDELINS. TO DO OTHE

3、RWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER. WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION FROM A.C. LINE SHOCK. SAFETY CHECKS AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED, A CHECK SHOULD BE MADE OF THE FOLLOWING. SUBJECT: FIRE CONNECT A 1500OHM 10 WA

4、TT RESISTOR, PARALLELED BY A. 15 MFD, 150.V A.C. TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CONDUIT, ETC.) AND THE EXPPOSED METALLIC PARTS, ONE AT A TIME. MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG AND REPEAT A

5、. C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C. ANY VALUE EXCEEDING THIS LIMIT CONSTITUTED A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY. SUBJECT: GRAPHIC SYMBOLS SUBJECT: TIPS ON PROPER INST

6、ALLATION 1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBYHOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW. 2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIATORS WHERE STEAM LEAK

7、AGE IS FACTOR, ETC. 3. AVOID PALCEMNET WHERE DRAPERIES MAY OBSTRUCT REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT OBSTRUCT VENTILATION. 4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL MOUNTING KIT. MUST FOLLOW THE FACTORY APPROVE

8、D MOUNTING INSTRUCTIONS A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIP FLOW ACROSS THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLATI

9、ONS. 5. CAUTION CUSTOMERS AGNINST THE MOUNTING OF A PRDUCT ON SLOPING SHELF OR TILTED POSITION, UNLESS THE PRODUCT IS PROPERLY SECURED. 6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACRO

10、SS THRESHOLDS OR DEEP POLE CARPETS. 7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC MODEL OF THELVISION RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V. S OF THE SAME OR LARGER SCREEEN SIZE. 8. CAUTIO

11、N CUSTOMERS AGAINST THE USE OF EXTENSION CORDS, EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SINGAL OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FAMILY. THE LIGHTNING FASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSU

12、LATED “DANGEROUS VOLTAGE” WITHIN THE PRODUCT S ENCLOSURE THAT MAY BE OF SUFFCIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. THE EXCELAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN TH

13、E LITERATURE ACCOMPANYING THE APPLIANCE. RadioFans.CN 收音机爱 好者资料库 1-5 SERVICING PRECAUTIONS CAUTION: Before servicing the DVD player covered by this service data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE: if unforeseen circumstances create conflict between the foll

14、owing servicing precautions and any of the safety precautions in this publications, always follow the safety precautions. Remembers Safety First: General Servicing Precautions 1. Always unplug the DVD player AC power cord from the AC power source before: (1) Removing or reinstalling any component, c

15、ircuit board, module, or any other assembly. (2) Disconnection or reconnecting any internal electrical plug or other electrical connection. (3) Connection a test substitute in parallel with an electrolytic capacitor. Caution: A wrong part substitution or incorrect polarity installation of electrolyt

16、ic capacitors may result in an explosion hazard. 2. Do not spray chemicals on or near this DVD player or any of its assemblies. 3. Unless specified otherwise in this service data, clean electrical contacts by applying an appropriate contact cleaning solution to the contacts with a pipe cleaner, cott

17、ontipped swab, or comparable soft applicator. Unless specified otherwise in this service data, lubrication of contacts is not required. 4. Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service manual might be equipped. 5. Do not apply AC power to this DVD

18、 player and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed. 6. Always connect test instrument ground lead to the appropriate ground before connection the test instrument positive lead. Always remove the test instrument ground lead last. Insulatio

19、n Checking Procedure Disconnect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance meter (500V) to the blade of the attachment plug. The insulation resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more

20、 than 1M-ohm. Note 1: Accessible Conductive Parts including Metal panels, Input terminals, Earphone jacks, etc. Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensiti

21、ve (ES) Devices. Examples of typical Es devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handing any semico

22、nductor component or semiconductor equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power

23、to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such an aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices

24、. 4. Use only an antistatic solder removal device. Some solder removal devices not classified an “antistati c” can generate electric charges sufficient to damage ES devices. 5. Do not use freonpropelled chemicals. These can generate electrical charge sufficient to damage ES devices. 6. Do not remove

25、 a replacement ES device from its protect tive package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil, or comparable conductive material). 7. Immediately before removing the pr

26、otective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Caution: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8.Minimize bodily motions w

27、hen handing unpackaged replacement ES devices. (Normally harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.) RadioFans.CN 收音机爱 好者资料库 1-6 SPECIFICATIONS DVD VIDEO PLA

28、YER POWER SUPPLY AC 230V,50Hz (EUR)/120V,60Hz(US/CANADA) Power consumption. 30W External dimensions 43580280mm Weight (net) 4.6kg Signal system. PAL (EUR)/NTSC (USA/CANADA) Laser . Semiconductor laser, wavelength 650nm Frequency range(digital audio) . 2Hz to 22kHz Signal-to-noise More than 102dB(A-W

29、EIGHTED) Audio dynamic . More than 92dB Harmonic distortion . 0.008% Operating conditions . Temperature: 41 to 95, operation status: Horizontal OUTPUTS Video output 1.0V (p-p), 75, negative sync., RCA jack1 S-video output . (Y) 1.0V (P-P), 75,negative sync., Mini DIN 4pin1 (C) 0.286V (P-P), 75 Compo

30、nent Video output (Y)1.0V (P-P), 75,negative sync., (CbCr) 0.5V (P-P), 75 Scart Video output. (CVBS)1.0V(P-P) ,75,negative sync., (RGB)0.7V(P-P),75 Audio output(digital audio) . 0.5V(p-p) 75, RCA jack1 Audio output(analog audio) . 2.0Vrms(1kHz, 0dB), RCA jack1 1Power button and on/standby/off indica

31、tor 2PROGRESSIVE SCAN indicator 3DVD tray 4PLAY button 5PAUSE buttons 6SKIP buttons 7MENU button 8SELECT/navigation buttons 9HDCD indicator 10 Display window 11 OPEN/CLOSE button 12 STOP button 13 SCAN buttons 14 PROGRESSIVE SCAN button FRONT PANEL Identification of Controls 1 DIGITAL OUT COAX Jack

32、2 DIGITAL OUT OPTICAL (With Dust Protection Cap) Jack 3 MIXED AUDIO OUT (L Chrominance output for S-Video) DAC1 O 114 Video DAC1 output (Luminance for S-Video and component; G output for SCART) DAC2 O 112 Video DAC2 output (Chrominance output for NTSC/PAL S-Video; Cb output for component; Blue outpu

33、t for SCART) DAC3 O 110 Video DAC3 output (A second composite video; Cr output for component; Red output for SCART) IOM O 111 Cascaded DAC differential output used to dump current into external resistor for power VREF I 116 Input voltage reference (1.2V typ) for output DACs RSET O 119 Current settin

34、g resistor of output DACs COMP O 120 Compensation capacitor connection VddDAC P 108 DAC Digital Power/1.8V VssDAC P 109 DAC Digital Ground Vaa3 P 113 DAC Analog Power/3.3V NC (Vaa) - 117 Unused (was Vaa = 2.5V on NDV8501 device, can be connected to 1.8V without problem) Vssa P 115 DAC Analog Ground

35、2-20 Signal Type Pins Description Video Port VIO7:0 B 126-131 133-134 Bidirectional digital video port data bus / can be used as GPIO HSYNC B 124 Bidirectional HSYNC signal for devices that do not use EAV/SAV codes / can be used as GPIO VSYNC B 123 Bidirectional VSYNC signal for devices that do not

36、use EAV/SAV codes / can be used as GPIO VIOCLK B 122 VCLK input/output for Video I/O Port function Audio Interface AOUT0 O 74 Serial audio output data to audio DAC for Left & Right channels / can be used as GPIO AOUT1 O 73 Serial audio output data to audio DAC for Center & LFE channels / can be used

37、 as GPIO AOUT2 O 72 Serial audio output data to audio DAC for Surround Left & Right channels / can be used as GPIO AOUT3 O 71 Serial audio output data to audio DAC for Left & Right channels for down-mixed stereo / can be used as GPIO SPDIF O 68 S/PDIF digital audio output ACLK O 78 Audio interface s

38、erial data clock, common clock for DACs & ADC PCMCLK O 76 Audio DAC PCM sampling clock frequency, common clock for DACs & ADC / can be used as GPIO LRCLK O 79 Left/Right Channel clock, common clock for DACs & ADC AIN I 70 Digital audio input for digital micro / can be used as GPIO Clock Signals CXI

39、I 98 Crystal Input pin for on-chip oscillator or system input clock CXO O 99 Crystal Output pin for on-chip oscillator OSCVdd P 101 Oscillator Power (1.8V) OSCVss P 100 Oscillator Ground MVCKVdd P 102 Main & Video Clock PLL Power (3.3V) MVCKVss P 104 Main & Video Clock PLL Ground ACLKVdd P 107 Audio

40、 clock PLL Power (3.3V) ACLKVss P 105 Audio clock PLL Ground Test SCEN I 103 Scan Chain test enable SCMD I 106 Scan Chain test mode PWR & GND VDD P * Core Power =1.8V, pins: 4, 34, 77, 89, 135, 159, 192, 212 Vss P * Core & Ring Ground, pins: 17, 47, 69, 85, 121, 171, 201, 230 VDDIO P * I/O Pad power

41、 = 3.3V, pins: 1, 10, 19, 27, 36, 44, 53, 62, 75, 91, 125, 140, 154, 169, 181, 196, 210, 224, 233 VSSIO P * I/O Pad ground, pins: 6, 14, 23, 31, 40, 49, 57, 67, 82, 97, 132, 147, 162, 177, 188, 204, 218, 228, 237 2-21 BLOCK DIAGRAM PIN CONNECTIONS 1180 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

42、 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 MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD10 MD11 MD12 MD13 MD16 MD17 MD18 MD19 MD20 MD21 MD22 MD23 MD

43、24 MD25 VSSIO MCLK CS1- CS0- CAS- DQM0 RAS- MA0 MA1 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 Vssa IOM LA0 LA1 LA2 LA3 AD31 AD30 AD29 AD28 AD27 AD26 AD25 AD24 AD23 AD22 AD20 AD21 AD19 AD18 AD17 AD16 AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 SCLK PWE2- PWE3- PWE0- PWE1- DAC1 N

44、C COMP RSET DAC2 DAC0 VREF VssDAC VddDAC SRST- RSTP- RXD1 SSPCLK0 SSPCLK1 SSPOUT1 SSPIN1 RXD0 TXD0 RTS0- CTS0- SSPOUT0 SSPIN0 CXO CXI MVCKVdd MVCKVss OSCVdd OSCVss VIOCLK LRCLK PCMCLK ACLK AOUT3 AOUT2 AOUT1 AOUT0 DCLK DVD7 DSTB XIO11 XIO10 XIO9 DQM1 DQM2 ALE ACK NDV8601 WE- RD- SPDIF AIN 105 106 107

45、 108 109 110 111 112 113 114 116 117 118 119 120 115 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 240 232 233 234 235 236 237 238 239 3 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 4

46、4 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 VDDIO VSSIO VD

47、DIO MA2 VSS DQM3 MD31 VSSIO VDDIO MD30 MD29 MD28 MD27 MD26 VSSIO VSS VDDIO VSSIO VDDIO VSSIO VDD VDDIO VDD VSSIO VDDIO VSSIO VDDIO VSS VDD VSSIO VDDIO VSSIO VDDIO DVD6 DVD5 DVD4 DVD3 VSSIO DVD2 DVD1 DVD0 VDDIO VSS VDD DREQ DSYNC VSSIO VDDIO XIO8 XIO7 XIO6 XIO5 XIO4 XIO3 XIO2 XIO1 PCS0 SCEN SCMD VSS

48、VDD VSSIO VDDIO LHLD LHLDA VDDIO VSS VSSIO VDD VDDIO VSSIO VDDIO VSS VDD Vaa3 DAC3 ACLKVdd ACLKVss VDDIO VSSIO VSSIO VDDIO VIO0 VIO1 VIO2 VIO3 VIO4 VIO5 VIO6 VIO7 MA12 MA13 MD14 MD15 HSYNC VSYNC VDD VSS VDDIO VSSIO VSSIO MD9 CKE XIO12 XIO13 XIO14 ELECTRICAL PARTS LIST REF. NO.PART NO. SWITCH MODE PO

49、WER SUPPLY BOARD 16-57004-01Switch Mode Power SupplySMPS Raw PCB 01-57004-01Switch Mode Power SupplySMPS PCB with components DIODES D400, D401, D402, D40333-20104-00FR104Fast Recovery Rectifier Diode D405, D406, D40733-20203-00HER203Fast Recovery Rectifier Diode D41033-15109-015.1V1/2WZener Diode D40833-15609-015.6V1/2WZener Diode B40033-30162-00DB105Rectifier Bridge TRANSISTORS Q400, Q401, Q403, Q404, Q405, Q406 31-0