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NAD CI 980 Service Manual
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NAD CI 980 Service Manual

NAD CI 980 Service Manual

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NAD
CI 980
MULTI-CHANNEL
AMPLIFIER

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Summary of Contents for NAD CI 980

  • Page 1 CI 980 MULTI-CHANNEL AMPLIFIER...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION P A G E SERVICE CAUTION…………………………………………………………..3-4 SPECIFICATIONS…………………………………………………………...5 WIRING DIAGRAM……………………………………………………………...6 BLOCK DIAGRAM…………………………………………………………..7-9 TROUBLE SHOOTING GUIDE…………………..........10 CIRCUIT DIAGRAMS..………………..........11-19 PCB LAYOUT………………………………………………………………..20-24 ELECTRICAL VIEW PARTS LIST…………………………………...…..25-34 EXPLODED VIEW PARTS LIST……………………………………………..36...
  • Page 3 PRODUCT SAFETY SERVICING GUIDELINES CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S. ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE WITHOUT MANUFACTURER’S APPROVAL. UNAUTHORIZED EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.
  • Page 4 SERVICING PRECAUTIONS CAUTION : Before servicing the poweramplifier covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged easily by SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances static electricity.

  • Page 5: Specifications

    SPECIFICATIONS CI 980 Continuous Output Power 8 x 50W (ref. rated THD, 20Hz-20kHz, all channels driven) 8 Ohms 8 x 60W 4 Ohms 120W 8 Ohms in Bridge Mode Rated THD (250mW to rated power, CCIF IMD, DIM 100) ≤0.03% (ref. 20Hz-20kHz) Clipping Power ≥155W (ref.
  • Page 6 WIRE DIAGRAM...

  • Page 7: Block Diagram

    BLOCK DIAGRAM FOLLWER GLOBAL MAIN IN PUT FILTER AMPLIFER GATA CHANNAL DRIVER AMPLIFER LINE IN PUT FOLLWER 400V DC High dynamic Power Factor Correction Isolated DC convertor LOW LOSS STANDBY PSU EMI FILTER AC INNET...

  • Page 8: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Connect AC from CI980 CHECK ALL POWER IS Re d LED LIGH TED? IS LED WHITE? SUPP LIES OK? CHECK ALL POWER CHECK POWER FUS ? SUPP LIES OK? PRESSSTB TOUCH KEY MAKE THE UNIT WORK NORMALLY? CHECK STB +5V CHECK TRIGGER OFF ? CHECK TRIGGER ON ? CHECK TRIGGER CIRCUIT...

  • Page 9: Circuit Diagrams

    CIRCUIT DIAGRAMS 1.MAIN AMP BOARD C921 -32V 4.7uF/25V +32V D903 R919 1N4148 R917 D904 R913 R915 4.7R 1N4148 C915 47.5K/1% 1K/1% 100nF/100V C913 150pF/500V IC901 IR4302 CLIP R923 COMP2 C901 10uF C905 C903 R901 R903 2.2nF/50V CJ101A R929 2.2nF/50V C935 C933 3.3K/1% 2.7K/1%...
  • Page 10 2.PRE AMP BOARD(1/4) CJ401B CJ301B +32V 18PIN X 2.54 18PIN X 2.54 CJ101A VH 3.96A-5A 4700uF/50V 100nF/100V +32V +32V CA10 -32V -32V 100nF/10 4700uF -32V LA11 1K 100M V CC V CC FAU4 FAU3 CA11 +5V A +5VA 100uF/50V 100nF/100V -5V S -32V -5VS...
  • Page 11 2.PRE AMP BOARD(2/4) IC303B R319 C309 MC4558D +12V 100nF RCA301B C301 IC301B R303 R311 MC4558D 10uF R329 C317 L301 3.3K +12V L IN 100nF IC303A 100K R313 MC4558D R335 IC301A C321 R301 R305 Q301 100K MC4558D R317 220pF C303 R321 2SC1815 C313 470pF...
  • Page 12 2.PRE AMP BOARD(3/4) S WIT FAU4 FAU6 LED9B LED9R RB44 RB43 RB42 +5VD +5VA 1N4148 1.5K 1.5K 1.5K +32V RB37 2SA1015 RB41 RB38 +5VD 100K -5VS CJ105A RB35 XHB 2.5A-9A MUTE MUTE 2SC1815 LED9B MUTE1 RB39 LED9R S WIT RB36 RB149 S CK RB121 10K...
  • Page 13 2.PRE AMP BOARD(4/4) +2.5V +2.5V US301B RS303 MCP6002T-E/SN +2.5V US501B RS309 RS503 MCP6002T-E/SN US901B RS903 S301 RS509 MCP6002T-E/SN RS909 CS307 CS301 S501 RS301 RS305 100K 1uF/25V CS507 S901 100K L301 CS501 RS501 2.2uF RS505 CS907 1uF/25V 100K 100K CS901 RS901 L501 RS905 100K...
  • Page 14 3.GLOBAL IN BOARD RCA1B IC 1B Comment: 2.7uH BNCAV2-8.4-14 100nF 3.3K 10uF MC4558D R IN +12V GL OBA L IN V R1A IC1A R1121GOX H1G503Y J0000 220pF MC4558D 100K 470pF 2SC1815 ALR OUT RCA1A 100K 470pF BNCAV2-8.4-14 CJ106B 33pF XHB 2.5A-8A 1N4148 GL OBA L OU T R IN...
  • Page 15 4.LED BOARD +5 V D CJ109B CJ105B U T1 Comment: XHB 2.5A-9A X H B 2.5A -5 A 74H C595 LED1G L ED 9B V CC TO -PO W ER LED LED1R L ED 9R LED2G RT21 SW IT LED2R SWIT LED3G LED9R...
  • Page 16 5.POWER LED BOARD +5V D CJ109A X HB 2.5A -4A +5V D LED9B LED9R SW IT QT92 QT91 2SA 1015 2SA 1015 JK 901 IT -1102-1260 RT94 RT91 RT92 RT93 LED9 6.SWITCH BOARD CN102B-CN802B CN101B-CN801B CN 102B CN 101B X H B 2.5A -5 A X H B 2.5A -6 A S101 S102...
  • Page 17 7.PSU BOARD L901 22uH/6A C908 C909 10nF/1KV 10nF/1KV Q901 BT139X-600F R917 100K GNDP 200V/680UF R918 150P/200V R910 C902 C977 100K C911 R931 150P/200V R933 150R 150P/200V C917 T904 T906 C912 C914 R929 470nF/275VAC BAW56W BAW56W 10nF 500V T902 Q914 Q916 BAW56W AOT412 R928...
  • Page 18 PCB LAYOUT 1.MAIN AMP BOARD Top Layout Bottom Layout...
  • Page 19 2.PRE AMP BOARD Top Layout Bottom Layout...
  • Page 20 3.GLOBAL IN BOARD Top Layout Bottom Layout...
  • Page 21 4.LED BOARD Bottom Layout Top Layout 5.POWER LED BOARD Bottom Layout Top Layout 6.SWITCH BOARD Top Layout Bottom Layout...
  • Page 22 7.PSU BOARD Top Layout Bottom Layout...

  • Page 23: Electrical View Parts List

    ELECTRICAL PARTS LIST PCB-1:MAIN AMP BOARD PCB INFO 01-29801-01 Main AMP BOARD 02-29801-01 Main AMP BOARD A16-29801-23 Main AMP PCB VM2.1, FR-4,1.6mm,2Lyers,2Oz,,TG130 2->1, VM2.1,FR-4,1.6mm 2Layers,2Oz,,TG130,109× A16-29810-23 Main AMP PCB 146mm DIODES D902, D903, D904, D905, D906, D907, 33-44148-17 Switch Diode 1N4148W-FDICT D919 D915, D916, D917, D918...
  • Page 24 ALU Electrolytic C901, C902 06-10051-09 CD71H,10uF,50V,9.5uF~10uF,105℃,F5.0 Capacitor Bi-polarized Alu CD71H,10uF,50V,±20%,105℃,F5.0 C901, C902 or 06-10051-11 Electrolytic Capacitor C941 06-10121-02 Alu Electrolytic Capacitor CD263(X),100uF,25V,±20%,105℃,F5.0 C935, C936 06-22151-03 Alu Electrolytic Capacitor CD281 220UF/50V 10X16MM C935, C936 or 06-22151-04 Alu Electrolytic Capacitor CD281 220UF/50V H<15mm INDUCTOR L901, L902 08-01220-01...
  • Page 25 ICA2 03-07905-02 3-Terminal Regulator L7905CV, TO220 ICA2 or 03-07905-04 3-Terminal Regulator KA7905 RESISTOR RS426, RS626, RS926 07-92209-00 Chip Resistor 22Ω,0603,1/10W,±1%,RC0603FR-0722RL RB101, RB102, RB103, RB104, RB141, RB143, RB144, RB145, RB146, RB147, RB148, RB164, RB165, RB166, RB167, 07-91000-00 Chip Resistor 100Ω,0603,1/10W,±1%,RC0603FR-07100RL RB168, RB169, RB175, RB177, RB178, RB179, R311, R312, R317, R318, R325, R326, R411, R412, R417, R418, R425, R426,...
  • Page 26 C305, C306, C315, C316, C405, C406, C415, C416, C505, C506, C515, C516, 26-10151-00 Ceramic Chip Capacitor 100pJ,50V,0603,NPO,C1608C0G1H101JT C605, C606, C615, C616 C321, C421, C521, C621, C322, C422, 26-22151-00 Ceramic Chip Capacitor 220PJ,50V,0603,NPO C522, C622 C303, C304, C307, C308, C403, C404, C407, C408, C503, C504, C507, C508, 26-47151-00 Ceramic Chip Capacitor 470pJ,50V,0603,NPO...
  • Page 27 17-02002-00 Phone Jack SCJ351P00XS0B00 FASTENERS RCA(2) 61-023208-0 Self Tapping Screw BTB3×8 TOT1 TOT2 TOT3 69-396006-0 Busbar T=1mm PCB-3:GLOBAL IN BOARD PART NO. DESCRIPTION PCB INFO 01-29803-01 GLOBAL IN BOARD 02-29803-01 GLOBAL IN BOARD A16-29803-22 GLOBAL PCB VM1.0,FR-4,1.6mm , 2Layers,1Oz, TG130 4->1,VM2.0,FR-4,1.6mm , 2Layers,1Oz, TG130,166×...
  • Page 28 RESISTOR RT21, RT22, RT23 07-91000-00 Chip Resistor 100Ω,0603,1/10W,±1%,RC0603FR-07100RL RT3, RT7, RT11, RT15 07-95100-00 Chip Resistor 510Ω,0603,1/10W,±1%,RC0603FR-07510RL RT25 07-91001-00 Chip Resistor 1KΩ,0603,1/10W,±1%,RC0603FR-071KL RT2, RT6, RT10, RT14 07-95101-00 Chip Resistor 5.1KΩ,0603,1/10W,±1%,RC0603FR-075K1L RT35 07-91602-00 Chip Resistor 16KΩ,0603,1/10W,±1%,RC0603FR-0716KL RT1, RT4, RT5, RT8, RT9, RT12, RT13, 07-91002-00 Chip Resistor 10KΩ,0603,1/10W,±1%,RC0603FR-0722KL...
  • Page 29 A16-29806-21 Power switch PCB VM1.0,FR-4,1.6mm ,2Layers,1Oz, TG130 20->1,VM1.0,FR-4,1.6mm ,2Layers,1Oz, TG130,102 A16-29860-21 Power switch PCB ASSM ×160mm CONNECTORS CN102B 13-22506-00 CONNECTORS XHB 2.5A-6A CN101B 13-22507-00 Connector Socket XHB 2.5A-7A/TJC3-7A S101, S102 11-05202-19 Side Switch 5FD1S102M2QES PCB-7:PSU BOARD PART NO. DESCRIPTION PCB INFO 01-29807-01 PSU BOARD 02-29807-01...
  • Page 30 R908 07-95101-00 Chip Resistor 5.1KΩ,0603,1/10W,±1%,RC0603FR-075K1L R904, R905, R907, R963, R972, R986 07-91002-00 Chip Resistor 10KΩ,0603,1/10W,±1%,RC0603FR-0710KL R975 07-91802-00 Chip Resistor 18KΩ,0603,1/10W,±1%,RC0603FR-0718KL R906, R962, R964, R965, R966, R967, 07-94702-00 Chip Resistor 47KΩ,0603,1/10W,±1%,RC0603FR-0747KL R982, R992, R91 R94, R96 R921, R922, R923, R924, R925, R926 07-91003-00 Chip Resistor 100KΩ,0603,1/10W,±1%,RC0603FR-07100KL...
  • Page 31 C936, C937, C940, C973 06-22131-09 Alu Electrolytic Capacitor CD263(X),220uF,35V,±20%,105℃,F3.5 C938, C939, C941, C974 06-33121-01 Alu Electrolytic Capacitor CD263(X),330uF,25V,±20%,F3.5 C954, C955 06-10211-19 Alu Electrolytic Capacitor CD282,1000uF,10V,±20%,105℃,F3.5 C902, C903, C977, C978 06-68122-06 Alu Electrolytic Capacitor CD294, 680uF, 200V, ±20%, 30×30mm MOSFET Q912, Q913 31-01850-03 N-ch POWER MOSFET FDP18N50 Q914, Q915, Q916, Q917...
  • Page 32 79-420002-0 EVA1 EVA , 34*10*3mm,The single side of gum 79-420003-1 EVA2 EVA , 65*18*2mm,The single side of gum 78-420001-0 Insulated Sheet GK-17,Black,T=0.5mm,169x92mm 79-420004-0 EVA3 EVA,420*8*0.5mm,The single side of gum 79-420005-1 EVA4 EVA , 398*8*1mm,The single side of gum 85-460001-0 Nylon Spacer 3-16.8 METAL 70-420005-0C...
  • Page 33 ASSY EXPLODED VIEW 11 12 15 16 26 27 28 29...

  • Page 34: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Item Part/No Part/Name Qt y Remark A17-07103-21 AC INLET A11-01101-03 Rocker switch 01-29801-01 MAIN AMP PCB 70-420009-1 AMP heatsink 70-420003-2 heatsink 70-420002-1 heatsinkA 70-420004-0 heatsinkB 01-29807-01 PSU board Assy 66-420003-0 converter block 70-420008-1 moutain bar1 74-123003-1 input button power button 77-124004-0...
  • Page 35 NAD ELECTRONICS LTD TORONTO...