Nad-C-715-DAB-Service-Manual(1) 电路图 维修手册.pdf

《Nad-C-715-DAB-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Nad-C-715-DAB-Service-Manual(1) 电路图 维修手册.pdf（65页珍藏版）》请在收音机爱好者资料库上搜索。

1、? ? ? ?BC ? ? ?C From S/N A86C715G12401 Onward Draft: March 2010RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 1-3 CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURER S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WA

2、RRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO

3、 THE USER. WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION FROM AC LINE SHOCK. SAFETY CHECKS AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED. A CHECK SHOULD BE MADE OF THE FOLLOWING. SUBJECT : FIRE CONNECT A 1500 OHM 10 WATT RESISTOR, PARALLELED BY A .15 MFD, 150V AC TYPE CAPACITO

4、R BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CONDUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME. MEASURE THE AC VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE AC PLUG AND REPEAT AC VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEAS

5、URE MUST NOT EXCEED 75 VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY. SUBJECT : GRAPHIC SYMBOLS SUBJECT : TIPS ON PROPER INSTALLATION 1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBYHOLE

6、 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 LEAKAGE IS A FACTOR, ETC. 3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT

7、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 COMMERCAL MOUNTING KIT MUST FOLLOW THE FACTORY APPROVED MOUNTING INSTRUCTIONS A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST

8、RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACROSS THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS. 5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON SLOPING

9、 SHELF OR A 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 ACROSS THRESHOLDS OR DEEP PILE CARPETS. 7. CAUTION CUSTOMERS AGAINST TH

10、E USE OF A CART OR STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V. S OF THE SAME OR LARGER SCREEN SIZE. 8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS, EXPLAIN THAT A FOREST

11、 OF EXTENSIONS SPROUTING FROM A SINGLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FAMILY. THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED “ DANGEROUS VOLTAGE” WITHIN THE PRODUCT S ENCLOSURE THAT MAY B

12、E OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE. PRODUCT SAFETY SERVICING

13、GUIDELINES RadioFans.CN 收音机爱 好者资料库 1-4 SERVICING PRECAUTIONS CAUTION : Bef or e ser vicing t he A/ V Receiver cover ed by t his s er vic e dat a and it s s upplement s and addends , r ead and f ollow t he SAFETY PRECAUTIONS. NOTE : if unf or es een c ir c ums t anc es c r eat e c onf lic t bet ween

14、t he f ollowing s er vic ing pr ec aut ions and any of t he s af et y pr ec aut ions in t his public at ion, alway s f ollow t he s af et y pr ec aut ions . Remember Safety First: General Servicing Precautions 1. Alway s unplug t he A/ V Rec eiver AC power c or d f r om t he AC power s our c e bef o

15、r e: (1) Removing or r einst alling any component , cir cuit boar d, module, or any ot her as s embly . (2) Dis c onnec t ing or r ec onnec t ing any int er nal elec t r ic al plug or ot her elec t r ic al c onnec t ion. (3) Connec t ing a t es t s ubs t it ut e in par allel wit h an elec t r oly t

16、ic c apac it or . Caution : A wr ong par t s ubs t it ut ion or inc or r ec t polar it y ins t allat ion of elec t r oly t ic c apac it or s may r es ult in an explos ion hazar d. 2. Do not s pr ay c hemic als on or near t his A/ V Rec eiver or any of it s as s emblies . 3. Unles s s pec if ied ot h

17、er wis e in t his s er vic e dat a, c lean elec t r ic al c ont ac t s by apply ing an appr opr iat e c ont ac t c leaning s olut ion t o t he cont act s wit h a pipe cleaner , cot t ont ipped swab, or c ompar able s of t applic at or . Unles s s pec if ied ot her wis e in t his s er vic e dat a, lu

18、br ic at ion of c ont ac t s is not r equir ed. 4. Do not def eat any plug/ s oc ket B+ volt age int er loc ks wit h whic h ins t r ument s c over ed by t his s er vic e manual might be equipped. 5. Do not apply AC power t o t his A/ V Rec eiver and/ or any of it s elec t r ic al as s emblies unles

19、s all s olid-s t at e devic e heat s inks ar e c or r ec t ly ins t alled. 6. Alway s c onnec t t es t ins t r ument gr ound lead t o t he appr opr iat e gr ound bef or e c onnec t ing t he t es t ins t r ument pos it ive lead. Alway s r emove t he t es t ins t r ument gr ound lead las t . Insulatio

20、n Checking Procedure Dis c onnec t t he at t ac hment plug f r om t he AC out let and t ur n t he power on. Connec t an ins ulat ion r es is t anc e met er (500V) t o t he blades of t he at t ac hment plug. The ins ulat ion r es is t anc e bet ween eac h blade of t he at t ac hment plug and ac c es

21、s ible c onduc t ive par t s (Not e 1) s hould be mor e t han 1M-ohm. Note 1 : Ac c es s ible Conduc t ive Par t s inc luding Met al panels , Input t er minals , Ear phone jac ks , et c . Electrostatically Sensitive (ES) Devices Some s emic onduc t or (s olid s t at e) devic es c an be damaged eas i

22、ly by st at ic elect r icit y. Such component s commonly ar e called Elec t r os t at ic ally Sens it ive (ES) Devic es . Examples of t y pic al Es devic es ar e int egr at ed c ir c uit s and s ome f ield ef f ec t t r ans is t or s and s emic onduc t or c hip c omponent s . The f ollowing t echniq

23、ues should be used t o help r educe t he inc idenc e of c omponent damage c aus ed by s t at ic elec t r ic it y . 1. Immediat ely bef or e handling any s emic onduc t or c omponent or s emic onduc t or -equipped as s embly , dr ain of f any elec t r os t at ic char ge on your body by t ouching a kn

24、own ear t h gr ound. Alt er nat ively, obt ain and wear a commer cially available dis c har ging wr is t s t r ap devic e, whic h s hould be r emoved f or pot ent ial s hoc k r eas ons pr ior t o apply ing power t o t he unit under t es t . 2. Af t er r emoving an elec t r ic al as s embly equipped

25、wit h ES devic es , plac e t he as s embly on a c onduc t ive s ur f ac e s uc h as aluminum f oil, t o pr event elec t r os t at ic c har ge buildup or expos ur e of t he as s embly . 3. Us e only a gr ounded-t ip s older ing ir on t o s older or uns older ES devic es . 4. Use only an ant ist at ic

26、 solder r emoval device. Some solder r emoval devices not classif ied a “ ant i-st at ic” can gener at e elec t r ic al c har ges s uf f ic ient t o damage ES devic es . 5. Do not use f r eonpr opelled chemicals. These can gener at e elec t r ic al c har ge s uf f ic ient t o damage ES devic es . 6.

27、 Do not r emove a r eplacement ES device f r om it s pr ot ect ive pac kage unt il immediat ely bef or e y ou ar e r eady t o ins t all it . (Mos t r eplac ement ES devic es ar e pac kaged wit h leads elec t r ic ally shor t ed t oget her by conduct ive f oam, aluminum f oil, or c ompar able c onduc

28、 t ive mat er ial). 7. lmmediat ely bef or e r emoving t he pr ot ec t ive mat er ial f r om t he leads of a r eplac ement ES devic e, t ouc h t he pr ot ec t ive mat er ial t o t he c has s is or c ir c uit as s embly int o whic h t he devic e will be ins t alled. Caut ion : Be s ur e no power is a

29、pplied t o t he c has s is or c ir c uit , and obs er ve all ot her s af et y pr ec aut ions . 8. Minimize bodily mot ions when handing unpac kaged r eplac ement ES devic es . (Nor mally har mles s mot ion s uc h as t he br us hing t oget her of y our c lot hes f abr ic or t he lif t ing of y our f

30、oot f r om a c ar pet ed f loor c an gener at e s t at ic elec t r ic it y s uf f ic ient t o damage an ES devic e.) 1-5 SPECIFICATIONS (C715 DAB) AMPLIFIER SECTION Power output Stereo Mode 25W (6 ohms within rated distortion, 1kHz) IHF dynamic power (6 ohms) 28W Total harmonic distortion at rated p

31、ower 0.15% Damping factor (6 ohms) 102 Input sensitivity and impedance (Tape IN) 370mV/27k Frequency response +1 dB/-3dB (Ref. 1 kHz, 10Hz 80kHz) Signal/noise ratio, 95dB (Ref. rated power/ 6 ohms A-WTD) Signal/noise ratio 80dB (Ref. 1W / 6 ohms A-WTD) TUNER SECTION AM SECTION Tuning range 520kHz -1

32、710kHz (North America version, 10kHz steps) 522kHz -1629kHz (Europe version, 9kHz steps) Usable sensitivity 60dBuV S/N ratio 40dB Total Harmonic Distortion 1.5% Selectivity 25dB Frequency response -6dB (Ref. 400Hz, 80Hz 2.2kHz) FM SECTION Tuning range 87.50MHz 108MHz (50kHz steps) Usable sensitivity

33、, MONO 10dBuV S/N Ratio MONO 60dB S/N Ratio STEREO 55dB Total Harmonic Distortion, MONO 0.3% Total Harmonic Distortion, STEREO 0.5% Frequency response -3dB (Ref. 1 kHz, 30Hz 12kHz) Channel Separation 35dB RDS decode sensitivity 29dBuV DAB SECTION Tuning range Band III 174MHz 240MHz Maximum signal -3

34、dBm Sensitivity -96dBm Adjacent Channel Rejection -35dB Audio Output Stereo 2.5Vp-p Optical S/PDIF 24 bit sample resolution 48kHz sample rate CD SECTION Output level 1.16V Frequency response (ref. 0dB 1kHz, 20Hz-20kHz) +1dB Total harmonic distortion (ref. 1kHz, VIDEO OUT) 0.04% Signal/Noise ratio (A

35、-weighted, ref. 1kHz VIDEO OUT) 100dB Channel balance (ref. 0dB 1kHz) 0.5dB Dynamic range (A-WTD, VIDEO OUT) 82dB Channel separation 78dB (1kHz) 78dB (10kHz) PHYSICAL SPECIFICATIONS Dimensions (W x H x D) 213 x 103 x 324 mm (Net) 213 x 116 x 362 mm (Gross) Net weight 4.5kg Shipping weight 6.0kg Note

36、: Gross dimensions include feet, extended buttons and rear panel terminals. Specifications are subject to change without notice. For updated documentation and features, please log onto www.NAD for the latest information about C 715 DAB. DISASSEMBLY REMOVAL OF TOP COVER REMOVAL OF FRONT PANEL 1-6 1-7

37、 ? From S/N A86C715G12401 Onward C715DABC EXPLODED VIEW (230V European version with new DAB receiver) 1-81-9 See chart B ClassificationC715DABC OLD (DAB 1.0 MODULE)C715DABC NEW (DAB 5.0 MODULE)C715C, C715AH, C715DABC CD Mechanism change Time of application 2007.11 Start to A86C715G12400 End Start A8

38、6C715G12401 Onward 2008.10 Start POWER PCBCUP12019ZCUP12063Z- POWER PCB ASSYCOP12019BCOP12063B- DAB MODULEHNVFS2020V172CCNVFS2025V22A- Rear PanelCKF3A282NK1CKF2A383ZK1- Washer-CNW1A038 (add)- Nut-CNE1A009 (add)- CD Mechanism CJDKSL2130CCMZ CJDKSL2130CCMZCJDWSL11VF Program NAD_c715_2007_10_13-01.hex

39、/ NAD_c715_2008_10-02.hexNAD_c715_2008_01_10-02.hex NAD C515/C715 FIRMWARE LOADER It is possible to use C515/C715 FIRMWARE LOADER with the old DAB 1.0 module. Change both mechanism and program simultaneously. The new Sanyo mechanism will not work with a servo which has original Sony firmware install

40、ed. . CHART B C715 change LIST CD Mechanism Sony See chart B ? ? ? ?. ?2 ?35 ? ? ? ? ? ? ? ? ? ? 2-1 ?39 ?41 ?43 ?47 2-2 IC BLOCK DIAGRAMS & PIN DESCRIPTION 74HC4066D Quad bilateral switche handbook, halfpage MGR257 11 4Y 12 4E 4Z 10 3Z 9 2Z 3 1Z 2 8 3Y 6 3E 4 2Y 5 2E 1 1Y 13 1E Fig.5 Functional dia

41、gram. handbook, halfpage MGR258 VCC GND nE nZ nY VCC Fig.6 Schematic diagram (one switch). 74VHC08TTR PIN CONNECTION AND IEC LOGIC SYMBOLS 2-3 AK4554 2-4 ST92F124V ST92F124V1: Architectural Block Diagram 256 bytes Register File RAM 4 Kbytes ST9 CORE 8/16 bits CPU Interrupt Management MEMORY BUS RCCU

42、 Ext. MEM. ADDRESS DATA Port0 Ext. MEM. ADDRESS Ports 1,9 REGISTER BUS WATCHDOG AS DS RW WAIT NMI DS2 RW MISO MOSI SCK SS A10:8 A21:11 A7:0 D7:0 ST. TIMER SPI SDA SCL I2C BUS FLASH 128 Kbytes WDOUT HW0SW1 STOUT Fully Prog. I/Os P07:0 P17:3 P12:0 P27:0 P37:4 P33:1 P47:4 P43:0 P57:0 P65:2,0 P6.1 P77:0

43、 P87:0 P97:0 MF TIMER 0 TINPA0 TOUTA0 TINPB0 TOUTB0 TINPA1 TOUTA1 TINPB1 TOUTB1 INT6:0 WKUP15:0 MF TIMER 1 E3 TM 1 Kbyte OSCIN OSCOUT RESET CLOCK2/8 INTCLK CK_AF ADC AVDD AVSS AIN15:8 AIN7:0 EXTRG VREG VOLTAGE REGULATOR The alternate functions (Italic characters) are mapped on Port 0, Port 1, Port2,

44、 Port3, Port4, Port5, Port6, Port7, Port8 and Port9. ICAPA0 OCMPA0 ICAPB0 OCMPB0 EXTCLK0 ICAPA1 OCMPA1 ICAPB1 OCMPB1 EXTCLK1 EF TIMER 0 EF TIMER 1 SCI M TXCLK RXCLK SIN DCD SOUT CLKOUT RTS SCI A RDI TDO 9 2-5 ST92F124V1: Pin Configuration (Top-view TQFP100) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

45、18 19 20 21 22 23 24 25 26 2728293031323334 35363738394041 4243444546474849 50 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 1009998979695 9493929190898887 868584838281807978 7776 ST92F124V1 P8.4/AIN4 P8.3/AIN3 P8.2/AIN2 P8.1/AIN1/WKUP15 P8.0/AIN0/WKUP14 NC P6.5/WKUP10/I

46、NTCLK P6.4/NMI P6.3/INT3/INT5 P6.2/INT2/INT4/DS2 P6.1/INT6/RW P6.0/INT0/INT1/CLOCK2/8 P0.7/A7/D7 VDD VSS P0.6/A6/D6 P0.5/A5/D5 P0.3/A3/D3 P0.2/A2/D2 P0.1/A1/D1 P0.0/A0/D0 AS DS P0.4/A4/D4 P1.7/A15 A20/P9.6 WAIT/WKUP5/P5.0 WKUP6/WDOUT/P5.1 TXCLK/CLKOUT/P5.4 OCMPA1/P4.2 VDD A21/P9.7 WDIN/SOUT/P5.3 DCD/WKUP8/P5.6 VSS ICAPB1/OCMPB1/P4.3 SDA/P4.6 SIN/WKUP2/P5.2 RXCLK/WKUP7/P5.5 CLOCK2/P4.1 EXTCLK1/WKUP4/P4.4 ICAPB0/P3.1 ICAPA0/OCMPA0/P3.2 WKUP9/RTS/P5.7 ICAPA1/P4.0 EXTRG/STOUT/P4.5 WKUP1/SCL/P4.7 OCMPB0/P3.3 EXTCL