NAD-C316BEE-int-sm维修电路原理图.pdf

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1、NAD SERVICE MANUAL C 316BEE STEREO AMPLIFIER C 316BEE STEREO AMPLIFIER RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS DESCRIPTION P A G E SERVICE CAUTION.3-4 REAR PANEL/FRONT PANEL VIEW.5 SPECIFICATIONS.6 WIRING DIAGRAM7 BLOCK DIAGRAM. .8-12 ALIGNMENT PROCEDURE.13 SCHEMATICS.14-17 PCB LAYOUT.18-21 TROUBL

2、E SHOOTING GUIDE.22 ELECTRICAL PARTS LIST.23-29 EXPLODED VIEW.30 EXPLODED VIEW PARTS LIST.31 RadioFans.CN 收音机爱 好者资料库 PRODUCT SAFETY SERVICING GUIDELINES CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURERS APPROVAL. UNAUTHORIZED MOD

3、IFICATIONS WILL NOT ONLY VOID THE WARRANTY, 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 RIS

4、K OF POTENTIAL HAZARDS AND INJURY TO 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

5、 BY A .15 MFD, 150V AC TYPE CAPACITOR 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

6、 EXPOSED METALLIC PART. VOLTAGE MEASURE 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 PROD

7、UCT 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 LEAKAGE IS A FACTOR, ETC. 3. AVOID PLA

8、CEMENT 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 COMMERCAL MOUNTING KIT MUST FOLLOW THE FACTORY APPROVED MOUNTING INSTRUCTIONS A PRODUCT

9、MOUNTED TO A SHELF OR PLATFORM MUST 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

10、THE MOUNTING OF A PRODUCT ON SLOPING 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 CARP

11、ETS. 7. CAUTION CUSTOMERS AGAINST THE 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 EXT

12、ENSION CORDS, EXPLAIN THAT A FOREST 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

13、THE PRODUCTS ENCLOSURE THAT MAY BE 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 APP

14、LIANCE. RadioFans.CN 收音机爱 好者资料库 SERVICING PRECAUTIONS CAUTION : Before servicing the A/V Receiver covered by this service data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances create conflict between the following servicing precautions and a

15、ny of the safety precautions in this publication, always follow the safety precautions. Remember Safety First: General Servicing Precautions 1. Always unplug the A/V Receiver AC power cord from the AC power source before: (1) Removing or reinstalling any component, circuit board, module, or any othe

16、r assembly. (2) Disconnecting or reconnecting any internal electrical plug or other electrical connection. (3) Connecting a test substitute in parallel with an electrolytic capacitor. Caution : A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an e

17、xplosion hazard. 2. Do not spray chemicals on or near this A/V Receiver 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, cottontipped swab, or comparable s

18、oft 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 A/V Receiver and/or any of its el

19、ectrical assemblies unless all solid-state device heat sinks are correctly installed. 6. Always connect test instrument ground lead to the appropriate ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last. Insulation Checking Procedure Disconn

20、ect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance meter(500V) to the blades of the attachment plug. The insulation resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1M-ohm. Note 1 : Acces

21、sible 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 Sensitive (ES) Devices. Examples o

22、f 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 handling any semiconductor component or semic

23、onductor-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 to the unit under test. 2.

24、 After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as 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. 4. Use only an antistati

25、c solder removal device. Some solder removal devices not classified a “anti-static” can generate electrical 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 a replacement ES device

26、from its protective 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. lmmediately before removing the protective material from the

27、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 when handing unpackaged re

28、placement 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 FRONT PANEL CONTROLS (FIGURE 1) REAR PANEL CONNECTIONS (F

29、IGURE 2) VOLUME TREBLEBALANCEBASS 5 4689 7 3 12 TONE DEFEAT PHONESTAPEVIDEOTUNERCDAUXMPDISC Stereo Integrated Amplifier C 316BEE 127 345689 78 1234569 ANARF 1. DISC INPUT 2. CD INPUT 3. VIDEO INPUT 4. AUX INPUT 5. TUNER INPUT 6. TAPE IN/OUT 7. SPEAKERS OUT 8. AC LINE CORD 9. POWER SWITCH 1. POWER 2.

30、 POWER/STAND BY/ PROTECTION LED 3. HEADPHONE 4. INPUT SELECTOR 5. IR RECEIVER 6. TONE CONTROLS 7. TONE DEFEAT 8. BALANCE CONTROL 9. VOLUME CONTROL EEB613C DAN EEB613C DAN RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS PREAMP IN , SPEAKERS OUT CONTINUOUS AVERAGE POWER 40 W (16 dBW) OUTPUT INTO 8 OHMS OR 4 OH

31、MS (Min. power per channel, 20 Hz 20 kHz, with no more than rated distortion) THD + Noise 200 Input Impedance R = 50 kohms C = 100pF Input sensitivity (for rated output into 8 ohms) 200 mV Voltage gain 39 dB Frequency response 20 Hz 20 kHz +/-1.0 dB (tone defeat off) +/-0.2dB (tone defeat on) Signal

32、 / Noise ratio, A-weighted 95dB ref. 1 W 111dB ref. 40 W SMPTE I.M. 0.02% (Intermodulation Distortion, 60 Hz + 7 kHz, 4:1, from 250 mW to rated output) IHF I.M. CONTROL LOGIC X DECODER SLAVE ADDRESS REGISTER & COMPARATOR WORD ADDRESS COUNTER HIGH VOLTAGE GENERATOR, TIMING & CONTROL EEPROM ARRAY Y DE

33、CODER DATA REGISTER Clock DI/O ACK 8 5 6 7 4GND WP SCL SDA Vcc nMOS FUNCTIONAL BLOCK DIAGRAM 1 2 3 45 6 7 8 NC NC NC VSS VCC NC SCL SDA RadioFans.CN 收音机爱 好者资料库 1 2 3 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 40Vcc P0.0(AD0) P0.1(AD1) P0.2(A

34、D2) P0.3(AD3) P0.4(AD4) P0.5(AD5) P0.6(AD6) P0.7(AD7) P2.0(A8) P2.1(A9) P2.2(A10) P2.3(A11) P2.4(A12) P2.5(A13) P2.6(A14) P2.7(A15) PSEN ALE/PROG EA/VPP (T2)P1.0 (T2EX)P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST (RXD)P3.0 (TXD)P3.1 (INT0)P3.2 (INT1)P3.3 (T1)P3.5 (T0)P3.4 (WR)P3.6 (RD)P3.7 XTAL1 XTAL2 GND

35、 AT89S51/W78E052DDG MAIN BOARD : IC501 PIN CONFIGURATION OSC WATCH DOG PORT 1 LATCH LATCH LATCH LATCH PORT 0 PORT 2 PORT 0 DRIVERS PORT 1 DRIVERS PORT 2 DRIVERS PORT 3 DRIVERS QUICK FLASH RAM RAM ADDR. REGISTER REGISTER B ACC STACK PIONTER PROGRAM ADDRESS REGISTER BUFFER PC INCREMENTER PROGRAM COUNT

36、ER DUAL DPTR INTERRUPT,SERIAL PORT AND TIMER BLOCKS TMP2 TMP1 ALU PSW TIMING AND CONTROL INSTRUCTION REGISTER P1.0 - P1.7P3.0 - P3.7 P2.0 - P2.7P1.0 - P1.7 PORT 3 PORT ISP PROGRAM LOGIC RadioFans.CN 收音机爱 好者资料库 L-S1 2 L-S2 3 L-S3 4 L-S4 5 L-S5 7 L-S6 8 L-S7 10 L-S8 11 L-COM 1 6 L-COM 2 9 L-COM 3 12 S

37、TB 13 GND 14 R-S1 27 R-S2 26 R-S3 25 R-S4 24 R-S5 22 R-S6 21 R-S7 19 R-S8 18 R-COM 1 23 R-COM 2 20 R-COM 3 17 DATA 16 CLK 15 Vss 1 Vdd 28 MAIN BOARD:U301 TC9164CNG PIN CONFIGURATION 1 2 3 4 8 7 6 5 1OUT 1IN 1IN+ VCC VCC+ 2OUT 2IN 2IN+ TL082, TL082A, TL082B D, JG, P, PS, OR PW PACKAGE (TOP VIEW) Radi

38、oFans.CN 收音机爱 好者资料库 ALIGNMENT PROCEDURES A. LOWEST VOLUME ADJUSTMENT 3. Connect a oscilloscope to L channel binding posts. 1. Tune the volume pot to lowest state. 2. Input a high voltage signal such as 5V from CD input. 4. Observing the oscilloscope,adjust VR102,make the output of speakers become to

39、 the 5. Adjusting VR202,make R channel output become to the lowest level by same way. B. IDLING CURRENT 4. Connect a DC voltmeter toTP3 and TP4 ,adjust VR101/VR103 for 12.5mV reading on voltmeter. 3. Connect a DC voltmeter toTP1 and TP2 ,adjust VR201/VR203 for 12.5mV reading on voltmeter. 1. Adjaut

40、25mV initial idling current for L/R channels,dismount top cover. TP1TP2 TP3TP4 VR101 VR201 VR202 VR203 MAIN BOARD lowest level. C316BEE VR103 2. Let unit run for 10 minutes. 5. Cover the top cover. VR102 RadioFans.CN 收音机爱 好者资料库 RCA31A L RCA31C L RCA32A L RCA32C L RCA33A L RCA33C L RCA33E L R101 470

41、R103 470 R105 470 C101 100p C102 100p C103 100p R107 470 R109 470 R111 470 C104 100p C105 100p C106 100p R113 470 C107 100p RCA31B R RCA31D R RCA32B R RCA32D R RCA33B R RCA33D R RCA33F R R201 470 R203 470 R205 470 C201 100p C202 100p C203 100p R207 470 R209 470 R211 470 C204 100p C205 100p C206 100p

42、 R213 470 C207 100p R212 1M R214220K R114220K R112 1M R102 1M R104 1M R106 1M R108 1M R110 1M R202 1M R204 1M R206 1M R208 1M R210 1M Q101 2SC2240 Q103 2SD667A Q102 2SA970 Q104 2SB647A R122 1K R125 2K2 R128 33 R129 10 D103 1N4148 D104 1N4148 R126 4.7K R127 4.7K R123 750 MF 1% R124 470 MF 1% C113 47u

43、F/25V C112 47pF/250V C110 100pF/250V/NP0 R120 220 D102 1N4148 R121 330K D101 1N4148 R119 390k C109 0.47uF 1 2 3SW31A C115 47uF/25V R131 3K MF 1% R132 750 MF 1% R134 3901% MF R133 180 MF1% C117 22nF 5% C118 0.1uF 5% R137 1K5 MF 1% R138 412 MF1% C119 0.22u 5% C120 1u 5% C121 470P TONE DEFEAT SW R139 2

44、0K OFF ON VOLUME POT BALANCE POT BASS POT TREBLE POT C116 0.1uF 63V RT31A 10KA RT32A 10KA RT34A 20K MN C145 22nF R136 220K D303 1N4001 R320 22K 3 1 2 IC31 AMS1117-5.0 1 2 3 4 D306 DB104 C322 1000uF/16V C321 100uF/16V R317 33 1/2W FS R319 680 R316 680 C314 220uF 50V Q308 KSC2690 C313 330p R311 680 R3

45、10 680 R309 680 D301 16V 1/2W C311 47uF/25V C307 47uF/25V R308 22K MF 1% R314 33 1/2W FS R318 680 R315 680 C315 220uF 50V Q306 2SC1815 C312 330p R313 680 C310 10uF/25V C309 47uF/25V R307 20K MF 1% Q307 KSA1220 Q305 2SA970-BL C306 0.1u CL23B C308 0.1uF CL23B - 17V R312N.I. D302 N.I. +17V R321 510 1/2

46、W PF R118 220K RL301 JQX-115F/24 C111 0.1uF +17V - 17V C114 0.1uF Q220 2SC2878 Q120 2SC2878 +45V Q201 2SC2240 Q203 2SD667A Q202 2SA970 Q204 2SB647A R222 1K R225 2K2 R228 33 R229 10 D203 1N4148 D204 1N4148 R226 4.7K R227 4.7K R223 750 MF 1% R224 470 MF 1% C213 47uF/25V C212 47pF C210 100pF/250V/NP0 R

47、220 220 D202 1N4148R221 330K D201 1N4148 R219 390k C209 0.47uF 4 5 6SW31B C215 47uF/25V R231 3K R232 750 1/6W MF R234 390 MF 1% R233 180 MF 1% C217 22nF 5% C218 0.1uF 5% R237 1K5 MF1% R238 412 MF 1% C219 0.22u 5% C220 1u 5% C221 470P 250V TONE DEFEAT SW R239 20K OFF ON BALANCE POT BASS POT TREBLE PO

48、T C216 0.1uF RT31B 10KA RT32B 10KA RT34B 20K MN C245 22nF R236 220K R218 220K C211 0.1uF +17V - 17V C214 0.1uF R215 470 R216 1M C208 100p R115 470 R116 1M C108 100p DISC CD VIDEO AUX TUNER TAPE REC CD L CD R DISC L DISC R VIDEO L VIDEO R AUX L AUX R TUNER L TUNER R TAPE L TAPE R REC L REC R MP L MP R D305 1N4148 1 2 3 4 5 CB31 1 2 3 4 SPKOUT BINDING POST +5V - 45V+45V 1 2 3 4 5 CB32 +/- 17V and 5 V Supply +35V - 35V 1 2 3 4 5 6 7