NAD-CI9120-pwr-sm维修电路原理图.pdf

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1、NAD SERVICE MANUAL CI 9060/9120 CI 9060/9120 SIX CHANNEL AMPLIFIER TWELVE CHANNEL AMPLIFER SIX CHANNEL AMPLIFIER TWELVE CHANNEL AMPLIFER 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 WITH

2、OUT MANUFACTURERS APPROVAL. UNAUTHORIZED MODIFICATIONS 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 GU

3、IDELINES. TO DO OTHERWISE, INCREASES THE RISK 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 CON

4、NECT A 1500 OHM 10 WATT RESISTOR, PARALLELED 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

5、 AND REPEAT AC VOLTAGE MEASUREMENTS FOR EACH 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 P

6、ROPER INSTALLATION 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

7、STEAM LEAKAGE IS A FACTOR, ETC. 3. AVOID PLACEMENT 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 FACTO

8、RY APPROVED MOUNTING INSTRUCTIONS A PRODUCT 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

9、INSTALLATIONS. 5. CAUTION CUSTOMERS AGAINST 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

10、 CASTERS ACROSS THRESHOLDS OR DEEP PILE CARPETS. 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.

11、 8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION 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 PRESENC

12、E OF UNINSULATED “DANGEROUS VOLTAGE” WITHIN 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) INSTRUC

13、TIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE. 2 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 bet

14、ween the following servicing precautions and any 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

15、 component, circuit board, module, or any other 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

16、 of electrolytic capacitors may result in an explosion 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 pi

17、pe cleaner, cottontipped 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 p

18、ower to this A/V Receiver 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 connecting the test instrument positive lead. Always remove the test instrument ground le

19、ad last. Insulation Checking Procedure Disconnect 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

20、 1) should be more 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 Electr

21、ostatically Sensitive (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

22、 handling any semiconductor 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 prio

23、r to applying power to the unit under test. 2. 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

24、 unsolder ES devices. 4. Use only an antistatic 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 devi

25、ces. 6. Do not remove a replacement ES device 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 bef

26、ore removing the protective 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. Mini

27、mize bodily motions when 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.) 3 RadioFans.CN 收音机爱 好者资料库 Specifica

28、tions Power Rating 85 Watts continuous average power into 6 Ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 0.03% THD. 86 Watts continuous average power into 4 Ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 0.03% THD. IM Distorti

29、on (SMPTE) 80 Watts into 6 Ohms 0.03 % 80 Watts into 4 Ohms 0.03 % IM Distortion (CCIF, Any Combination from 1kHz to 20kHz) 80 Watts into 6 Ohms 0.03 % 80 Watts into 4 Ohms30 Dynamic Headroom into 6 Ohms1.6dB OMC Activation10mV rms 12V Trigger Input Voltage Range10.0V to 20.0V DC, 100k Ohms 12V Trig

30、ger Output Current25 5mA, 470 Ohms Input Impedance25k Ohms Input Sensitivity 80 Watt into 6 Ohms1V rms 1 Watt into 6 Ohms114mV rms Damping Factor 20Hz to 20kHz 31 Rise Time 5kHz, 50V peak-to-peak square wave, 20% to 80%4 s Power Consumption (Continuous, All Channels Driven) Quiescent84/168VA Maximum

31、960/1920VA 80 Watts into 6 Ohms744/1488VA 80 Watts into 4 Ohms900/1800VA GENERAL Power (available in 240V)120VAC/50-60Hz Ambient Operating Temperature 100 F (40 C) Operating Temperature68 F (20 C) above ambient temperature Ventilation Air Flow150 cubic feet/minute maximum Net Chassis Dimensions17.2x

32、5.3x17.8 inches (437x133x451 mm) or 3 rack heights Maximum Gross Dimensions18.9x19.0 x5.7 inches (480.1x481.7x144.8 mm) (includes rack mounting hardware, feet and speaker terminals) Weight CI 9060, Packed58 lb (26.4 Kg), 68 lb (31 Kg) Weight CI 9120, Packed80 lb (36.5 Kg), 90 lb (41 Kg) 4 RadioFans.

33、CN 收音机爱 好者资料库 +15V -15V +15VA -15VA R-IN L-IN IN5 IN3 IN1 IN6 IN2 IN4 IN5 IN2 IN4 IN6 IN1 IN3 -15V +15V +15VA -15VA -15VA +15VA 1C8 0.1uF 1Q2 2SC1815GR 1 2 1RCA8 RCA JACK 1R29 10 (C Version) 1 2 1RCA1* RCA JACK 1 2 1RCA6 RCA JACK 1R1 100K CW 31 2 1RV3 20K 1R26 10 (C Version) 1 2 1RCA9 RCA JACK 1R2 1

34、00K 1 3 2 84 U1A OPA2134 1R32 10 (C Version) 1R27 4.99K 1R19 220K 1Q6 2SC1815GR 1R4*1 (C Version) 1R21 220K CW 31 2 1RV2 20K 1R17 220K 1R8*1 (C Version) CW 31 2 1RV6 20K + 12 1C6 4.7uF 10V 1C11 0.1uF 1 2 1RCA11 RCA JACK CW 31 2 1RV1 20K 1 2 1RCA14 RCA JACK 1R35 1 (C Version) 1 2 1RCA3* RCA JACK 1R15

35、 220K 1C10 0.1uF 1Q4 2SC1815GR 1R13 220K 1D3 1N4148 1D4 1N4148 7 5 6 U1B OPA2134 1D1 1N4148 + 12 1C4 4.7uF 10V 1R37 4.99K 1 3 2 84 U2A OPA2134 1D2 1N4148 1R33 4.99K 1 2 1RCA13 RCA JACK 1 2 1RCA16 RCA JACK 1C12 0.1uF 1R24 4.99K + 12 1C7 4.7uF 10V 1 2 3 4 5 6 7 1P4 7PIN 1R31 4.99K 1R34 4.99K 1 2 1RCA4

36、 RCA JACK 1Q5 2SC1815GR CW 31 2 1RV4 20K 7 5 6 U2B OPA2134 1C2 10pF 1 2 1RCA15 RCA JACK 1R5 100K 1R36 4.99K 1 2 1RCA10 RCA JACK 1R12 100K CW 31 2 1RV5 20K 1 2 1RCA5 RCA JACK + 12 1C5 4.7uF 10V 1 2 1RCA7 RCA JACK 1R22 30M 1R9 100K 1R28 4.99K 1C13 0.1uF 1R38 10K 1Q3 2SC1815GR 1R20 220K 1Q1 2SC1815GR 1

37、 2 1RCA2 RCA JACK 1R14 10 (C Version) 1R7 75.0 1R30 4.99K + 12 1C3 4.7uF 10V 1R18 4.99K 1 2 1RCA12 RCA JACK + 12 1C1 4.7uF 10V 1R16 4.99K 1R11 75.0 1R6 100K 1R3 75.0 1R23 10 (C Version) 1R25 4.99K 1R10 100K FlexPad NOTE: Six RCA Jumpers are provided for each FlexPad that is installed in a chassis. F

38、or Mono operation, an RCA Jumper is installed on the rear panel from J5 to J6, another from J7 to J8, another from J9 to J10, another from J11 to J12, another from J13 to J14, and the last from J15 to J16. J17 is not needed, and omitting it prevents the user from continuing the daisy-chain onto the

39、second FlexPad, if installed. Components with the * mark are not inserted in CI9120s second Flexpad. 1 2 3 4 5 6 1P1 6PIN 1 2 3 4 5 6 1P2 6PIN 1Q7* 2SC1815GR 1D7* 1N4148 1R39* 1M +15VA 1 2 1P3* 2PIN 1D5 1N4148 1D6 1N4148 1R41 220 1R52 100 1R40 220 1C14 470p 1R43 220 1R53 100 1C18 470p 1R51 220 1R57

40、100 1C17 470p 1R49 220 1R56 100 1C16 470p 1R47 220 1R55 100 1C15 470P 1R45 220 1R54 100 1C19 470p 1R42 220 1R44 220 1R46 220 1R48 220 1R50 220 -15V -15V -15V -15V -15V -15V +15V +15V +15V +15V +15V +15V 1R62 100 1R61 100 1R60 100 1R59 100 1R58 100 1R63 100 AmpInput2 AmpInput3 AmpInput1 AmpInput4 Amp

41、Input5 L-IN R-IN AmpInput6 AmpInput1 AmpInput2 AmpInput3 AmpInput4 AmpInput5 AmpInput6 INPUT-SENCE INPUT-SENCE In Sence In Sence To Mother Board 4P7 or Slave Mother board 5P7 To a Trigger Board 9P4 To 2nd or 4th Amp Module 2P3 To 1st or 3rd Amp Module 2P3 CH1 or CH7 IN CH1 or CH7 IN IN IN IN IN OUT

42、OUT OUT OUT OUT CH2 or CH8 CH2 or CH8 CH3 OR CH9 CH5 or CH11 CH6 or CH12 CH3 or CH9 CH4 or CH10 CH4 or CH10 CH5 or CH11 1C20* 0.1uF 1R64 10/1W 1C21 33uF 1C22 33uF 1C23 33uF 1C24 33uF 1C25 33uF 1C26 33uF 1R70 47k 1R69 47k 1R68 47k 1R67 47k 1R66 47k 1R65 47k 1C29 10uF 1C30 10uF 1C32 10uF 1C28 10uF 1C2

43、7 10uF 1C31 10uF +15V -15V 1 2 3 4 1P5 4PIN R-IN L-IN Note: IN CI9060, 1P5 IS NOT INSERT To Another Flex-pad Board 1P5 1C33 0.1uF INPUT-SENCE TEXT E C B 2SC1815GR 1 2 3 4 8 7 6 5 OPA2134 OUT A -IN A +IN A V- +IN B -IN B OUT B V+ FlexPad TM C 2000 NAD Electronics International, a division of Lenbrook

44、 Industries Limited ATO Logic TM C 2000 NAD Electronics International, a division of Lenbrook Industries Limited Sleep/Wake + 12 1C9 33uF 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 3.3 (AH Version) 5 RadioFans.CN 收音机爱 好者资料库

45、1 2 3 4 5 CI9120 AC IN PLUG2 T3 StandbyTransformer FUSE HOLDER 20A T1 Main Transformer T2 Main Transformer 1 2 3 4 5 1 2 3 3PIN JV1 V12JA JV2 V12JA 1 2 3 9P3 3PIN 1 2 9P4 2PIN FAN1 FAN FAN2 FAN FAN3 FAN 1 2 W28 2PIN 1 2 W27 2PIN 1 2 W26 2PIN SW2 SPDT SW1 SPDT 1 2 9P2 2PIN 1 2 2PIN To Mother Board 4P

46、1 To Flexpad 1P3 Trigger And Switch Board Note: In CI9120, Use 3 fans In CI9060, Use 2 fans, omit FAN3 To Mother Board 4P6 5RT1 0.1 5W 5RT2 0.1 5W 5RT3 0.1 5W 5RT4 0.1 5W 5RT5 0.1 5W 5RT6 0.1 5W 5PO1 speaker terminal 5PO2 speaker terminal 5PO3 speaker terminal 5PO4 speaker terminal 5PO6 speaker term

47、inal 5PO5 speaker terminal RETURN1RETURN2RETURN3RETURN4RETURN5RETURN6 OUTPUT1OUTPUT2OUTPUT3OUTPUT4OUTPUT5OUTPUT6 5D2 1.5A 5C3 680uF 35V 5C15 680uF 35V 5C2 4.7uF 50V 5C13 4.7uF 50V 2 1 3 IN 5U2 LM7915 1 2 3 IN 5U1 LM7815 5C8 0.1uF 5C12 0.1uF AC1AC2 +15V -15V 1 2 3 4 5 6 7 8 9 10 5P10 10PIN 1 2 3 4 5

48、6 7 8 9 10 5P11 10PIN +15V -15V 1 2 3 4 5 6 7 5P7 7PIN +15V -15V +15VA -15VA 1 2 3 4 5 6 7 5P20 6PIN 1 2 3 4 5 6 7 5P21 7PIN +35V2+35V2 -35V2-35V2 OUTPUT6 OUTPUT5 OUTPUT4 +15V -15V OUTPUT3 OUTPUT2 OUTPUT1 1 2 3 4 5 6 5P12 6PIN -15VA +15VA OMC-SENSE TEMP-SENSE TEMP PRO +35V2 -35V2 5M1 1PIN 5M2 1PIN 5

49、M3 1PIN 1 2 3 5P5 3PIN AC1 AC2 Slave Mother Board (Not used in CI9060, CI9120 use 1 piece per unit) To 2nd Flexpad To Mother Board 4P12 To PSU 7P9 & 7P10 & 7P11 solder with 6Q8 2SA1015GR 6Q9 2SA1015GR 6Q10 2SA1015GR 6R8 1K 1 2 3 4 5 6 7 8 9 10 6P1 10PIN 21 6D6 AMBER 21 6D8 RED 21 6D7 AMBER 21 6D5 AMBER 21 6D4 AMBER 21 6D3 GREEN 6SW2 TECT SWITCH 6R9 1K 6R10 1K 6R11 1K 6R12 1K 6R13 1K 6Q12 2SC1815GR 6Q13 2SA1015GR 6R25 4.7K 6D15 1N4148 6R33 100K +15V+15VA -15V +15VA +15V SW SW LED And Key Board To Trigge r Board 9P3 7RL1 12V RELAY 7D24 1N4001 7R3 27 0.5W 7C2 33000U 50V 7C3 330