NAD C 368 Service Manual
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NAD C 368 Service Manual

Hybrid digital dac amplifier
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C 368
Hybrid Digital DAC Amplifier
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Summary of Contents for NAD C 368

  • Page 1 C 368 Hybrid Digital DAC Amplifier...
  • Page 2 SPECIFICATION...
  • Page 3 C368 WIRING DIAGRAM...
  • Page 4 STBY TFT DISPLAY AC_DET Tact switch Tact switch Tact switch +13.8V SMPS 6.3AT/250V MENU FAULT_DET POWER SWITCH TRANS_TEMP Headphone VAUX+/- Amber/Blue/Red CLOCK +/-VCC STM32F030RCT6TR Low leakage SMPS SPI_FPP EXT_VDR LCD driver 3.3VS NAD C368 BLOCK DIAGRAM Signal VM1.0 Power control...
  • Page 5 C368 Trouble shooting No Power or Power shuts off immediately Check STB board Front panel Standby led change PSU board red light 13.8V RIGHT? Check main board Check U456 Press Standby button switch 3V3S RIGHT? Check Q703 Q706 circuit Check LEDBright Control signal Change FPP board,MDC board Check Q702 Q706 circuit standby led turn off?
  • Page 6 C368 & C388 PHONE BOARD...
  • Page 7 C368 & C388 MDC INTERNAL BOARD...
  • Page 8 C368 & C388 MDC BOARD...
  • Page 9 C368 & C388 AUDIO SENSE BOARD...
  • Page 10 C368 & C388 AUDIO SENSE INTERNAL BOARD...
  • Page 11 C368 & C388 FPP BOARD...

  • Page 12: Top Layer

    C368 MAIN BOARD TOP LAYER Speaker out J502 C517 S101 C516 C509 R513 D408 Q409 J402 J300 R937 J100 C532 C126 J101 C507 R4150 R936 R515 R520 C515 J504 R4156 D461 R451 D406 C514 U904 C913 C512 R438 R448 R449 R446 R447 RL401...
  • Page 13 C368 MAIN BOARD BOTTOM LAYER...
  • Page 14 Power Supply CY905 R176 1N 400V C175 T102 R175 L802 BD800 C800 R870 R804 C803 D801 KBP308G 3.3nF/630V 68K 2W 68K 2W 4.7nF/400V 14VD 1206RC MURS120 R805 C180 C182 C804 C181 * * * * * * * * 2.2R 100N 1000uF/25V 1000uF/25V...

  • Page 15: Electrical Parts List

    ELECTRICAL PARTS LIST 01-1-061001 UcD102 Module Main BOARD 01-1-061002 Main BOARD SMT 02-1-061002 05-4-061002-2S Main Board PCB VM2.0,FR-4,1.6mm,245?70mm MAIN+USB+HP+RS232 +BT 1xMAIN,1xusb,1xHP,1xRS232,1xBT 05-3-061002-2S VM2.0,FR-4,1.6mm255?87mm ASSY 12-1-000022 High speed Diode 1N4148W-NR D111, D400, D401, D505, D504 12-1-000231 Schottky Diode BAT54S, SOT23 D402 12-1-000016 Schottky Rectifier Diode BAT54J...
  • Page 16 R188, R310, R311, R312, R313, R314, R315, R316, R317, R318, 21-1-000001 Chip resistor 0Ω, 0603, ±5% R319, R364, R365, R366, R367, J301, R4149, R498, R933, R934 21-1-000002 Chip resistor 0Ω,0805 R550, R551, R4163 21-1-000027 Chip resistor 100KΩ,0603 R1104 21-1-000032 Chip resistor 10MΩ,0603 R1103 21-1-000011...
  • Page 17 21-1-000002 Chip resistor 0Ω, 0805, ±5% R506, R539 21-1-000036 Chip Resistor 10Ω,1/8W,±1%,0805 R333, R505 21-1-001186 Chip Resistor 54.9Ω,1/8W,±1%,0805 R354, R355 21-1-001316 Chip Resistor 75Ω,1/8W,±1%,0805 R301, R302 R156, R157, R158, R160, R300, R436, R4133, R4134, R4135, 21-1-000020 Chip Resistor 100Ω,1/8W,±1%,0805 R4136, R4137, R193, R194, R195, R196, R535 21-1-000023 Chip Resistor...
  • Page 18 C176, C177, C178, C189, C190, C306, C307, C308, C331, C332, C333, C334, C335, C339, C344, C365, C369, C370, C400, C410, C411, C412, C413, C414, C415, C416, C417, C418, C435, C436, C437, C438, C447, C462, C463, 23-1-000034 Ceramic Chip Capacitor 100nK,50V,0603,X7R C464, C465, C466, C467, C471, C490, C496, C4120, C4121, C4122, C4124, C4129, C4131, C4132,...
  • Page 19 23-1-000118 Chip Tan Electrolytic Capacitor 1uF, 50V, 20%, 4*5.4 C162, C163 C401, C402, C403, C404, C405, 10uF,16V,?0%,105 23-1-000001 Chip Alu Electrolytic Capacitor C406, C407, C408, C409, C434, ℃,VZH100M1C0406-TR0 C441, C446 10uF,35V,?0%,105 ℃,4x5.4,VE- 23-1-000088 Chip Alu Electrolytic Capacitor C130, C131, C132, C133, C154 100M1VTR-0405 47uF,25V,?0%,105 ℃, 23-1-000158...
  • Page 20 05-3-061115-2S PHONO BOARD ASSM VM2.0,FR-4,1.6mm,125.5?06mm 05-4-061117-2S Adjustable Regulator PCB 2 VM2.0,FR-4,1.6mm,10.2*15.3mm U461, U463 05-3-061115-2S PHONO BOARD ASSM VM2.0,FR-4,1.6mm,125.5?06mm 11-2-000033 3-Terminal Adjustable Regulator LM317T U463, U464 11-2-000038 Ragulator LM337T U460, U461, U465 11-2-000126 3-Terminal Regulator KA78R12CTU/KA278R12CTU U462 61-1-000401-0 heatsink HS4-C350-B009V1-M008 H457, H458(U461,U463) 65-0-000068 Self Tapping Screw BTB3?, B...
  • Page 21 MAIN+USB+HP+RS232 +BT 1xMAIN,1xusb,1xHP,1xRS232,1xBT 05-3-061002-2S VM2.0,FR-4,1.6mm255?87mm ASSY 61-1-061001-0 AL spacer AL 6063 H3.5 01-2-053702 BT MAIN BOARD U300 01-2-061103 DAC MODULE 02-1-061103 DAC MODULE 05-4-061103-1S DAC Board PCB VM1.0,FR-4,1.6mm 4拼1,VM1.0,FR- 05-2-061103-1S DAC Board ASSM 4,1.6mm,145.8*66.6mm 11-1-001091 Digital to analog convertor PCM1795DBR U1521 11-1-000128 Opamp...
  • Page 22 11-1-000265 Dual OPAMP OPA1652 U102 137KΩ,1206,1/4W,±1%, RC1206FR- 21-1-001747 Chip Resistor R139, R140 07137KL 21-1-000957 Chip Resistor 330Ω,1/8W,±1%,0805 R118, R119 21-1-001195 Chip Resistor 56KΩ,0805,1/8W,±1% R114, R115 21-1-000380 Chip Resistor 47Ω,1206,1/4W,±1% R143, R144 220Ω,1206,1/4W,±1%,RC1206FR- 21-1-000787 Chip Resistor R137, R138 07220RL 1KΩ,1206,1/4W,±1%,RC1206FR- 21-1-000501 Chip Resistor R145, R146 071KL...
  • Page 23 10uF,0805,10V,C0805C106M8PACTU/ 23-1-000037 Ceramic Chip Capacitor C5, C9 C2012X5R1A106M 2.0mm,6pin, CNT-M200-1*6-GD-3/3/2- 42-2-000100 Connector HP BOARD 01-1-061005 05-4-061005-2S HP Board PCB VM2.0,FR-4,1.6mm,26*39.5mm MAIN+USB+HP+RS232 +BT 1xMAIN,1xusb,1xHP,1xRS232,1xBT 05-3-061002-2S VM2.0,FR-4,1.6mm,255?87mm ASSY 46-0-000114 CK-6.35-02-9P JK400 6.35耳机插口 UL2547#24AWG*3C/UL1007#22AWG, 44-0-001516 Cable CZ401 L=480mm 01-1-061014 RS232 BOARD 02-1-061014 RS232 BOARD 05-4-061014-2S RS232 BOARD PCB VM2.0,FR-4,1.6mm,33?1.8mm...
  • Page 24 02-1-061107 FPP BOARD 05-4-061107-2S FPP Board PCB VM1.1,FR-4,1.6mm329.5*72mm 05-3-061107-2S FPP+Encode Board ASSM VM1.1,FR-4,1.6mm,371.5*82mm 11-1-001215 STM32F030RCT6 U700 11-1-001216 LED Driver KTD253EHD-TR U701 TinyLogic UHS Dual Buffer with 11-1-000009 NC7WZ17P6X U702, U704, U705 Schmitt Trigger 11-1-000196 Buffer NC7NZ34K8X U703 D701, D702, D704, D705, D706, 12-1-000021 Switch Diode 1SS355TE-17...
  • Page 25 1.2KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000041 Chip Resistor R703, R705 071K2L ?, ?%, 0603? 21-1-000010 Chip Resistor Network 33Ω R712 R720, R721, R722, R723, R724, R725, R726, R727, R728, R729, R730, R731, R732, R739, R740, 33Ω,0603,1/10W,±5%,RC0603JR- 21-1-000323 Chip Resistor R741, R742, R743, R744, R745, 0733RL R746, R747, R748, R749, R751, R766, R774, R775, R776, R777,...
  • Page 26 05-4-061112-1S MDC BOARD PCB Vm1.0,FR-4,1.6mm 05-2-061112-1S MDC BOARD ASSM 2拼1,Vm1.0,FR-4,1.6mm,:222?38mm 11-1-000202 Reset Chip APX803-29SAG-7 U606 11-1-001093 TM4C1290NCPDTT3 U605 11-1-000169 Octal Buffer SN74LV541APWR U202, U203 Octal Buffer SN74LVC541APWR U202, U203 11-1-000558 BUFFER NC7SZ125P5X U204, U205 11-1-000230 1A(3.3v) AMS1117-3.3 U608 11-1-000015 BUS EEPROM 24LC64-I/SN U602 TinyLogic UHS Dual Buffer with...
  • Page 27 C273, C274, C275, C600, C601, 23-1-000051 Ceramic Chip Capacitor 22nK,50V,0603,X7R C602, C603, C605 C212, C213, C214, C215, C228, C229, C230, C271, C633, C643, C645, C647, C649, C651, C654, 23-1-000034 Ceramic Chip Capacitor 100nK,50V,0603,X7R C607, C608, C616, C617, C618, C619, C620, C621, C622, C623, C624, C625, C626, C627, C629, C631, C632, C283, C284, C285 23-1-000457...
  • Page 28 51KΩ,0805,1/8W,±1%,RC0805FR- 21-1-001159 Chip Resistor R213 0751KL 3.3KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000075 Chip Resistor R636, R637 073K3L 4.7KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000088 Chip Resistor R277, R278 0747KL 21-1-000613 Chip Resistor 13KΩ,0805,1/10W,±1%, R214 R200, R201, R202, R203, R241, R242, R253, R254, R614, R615, R616, R617, R628, R629, R630, 10KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000024 Chip Resistor...
  • Page 29 11-1-000007 Regulator TL431BCDBZR IC102 11-1-000862S Photo Coupler EL817S1(B)(TA)-F OP101, U904 or 11-1-000863S Photo Coupler PC817X2NIP OP101, U904 12-1-000003 Zener Diode 18V, 3W, ?%, SMB DW800 D106, D107, D108, D109, D110, 12-1-000236 Switch Diode BAS321 D111, D113, D114, D115, D112, D116, D117, D120 12-1-000012 DIODE SMD MURS120T3G...
  • Page 30 2KΩ,0805,1/8W,±1%,RC0805FR- 21-1-000055 Chip Resistor R903 072KL 2.2Ω,1206,1/4W,±5%,RC1206JR- 21-1-000285 Chip Resistor R805 072R2L 23-1-000016 Chip capacitor 0805, 100PF, 50V, NPO C931 23-1-000201 Ceramic Chip Capacitor 1nK,200V,1206,X7R C141, C142 3.3nK,630V,1206,X7R,C3216X7R2J33 23-1-000460 Ceramic Chip Capacitor C800 23-1-000036 Ceramic Chip Capacitor 1uK,25V,0805,X7R C135 100nK,50V,0805,X7R,C2012X7R1H10 C805, C182, C120, C121, C915, 23-1-000249 Chip capacitor...
  • Page 31 24-2-000104 INDUCTOR 22uH 3A, MESC-220M-01 L101 24-2-000151 Inductor FB F10 RHW 3.5*8.3*0.8-T L802 24-2-000203 Common Inductor SC7422-145A, 20mH 2A L106 21-2-000635S SCK200710LSY TH101 21-2-000523 Metal Oxide film Resistor RY21, 68KΩ, 2W, ±5%,Pitch=5mm R870, R804 25-2-000271S Thermal Circuit Brake TH800 ST-22 100℃ W TYPE ,70mm 65Mn HRC48-52 HS4- 63-1-001802-0 Clamper...
  • Page 32 13-1-000010 Transistors BC846BW 65V 100mA Q802 13-1-000012 Transistor BC856BW 65V 100mA Q801 11-1-000021 IC DRIVER ISL6744AABZ IC800 11-1-000005 Dual Differential Comparator LM393DR U800 or 11-1-001131 Dual Differential Comparator LM393D U800 10Ω,0603,1/10W,±1%,RC0603FR- 21-1-000035 Chip Resistor R801 0710RL 100Ω,0603,1/10W,±1%,RC0603FR- 21-1-000019 Chip Resistor R803, R804 07100RL 2.7KΩ,0603,1/10W,±1%,RC0603FR-...
  • Page 33 11-1-000006 Shunt Regulator TL431CDBZR U951 11-1-000005 Dual Differential Comparator LM393DRG3 U950 or 11-1-001131 Dual Differential Comparator LM393DR2G U950 100Ω,0603,1/10W,±1%,RC0603FR- 21-1-000019 Chip Resistor R950 07100RL 909KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000118 Chip Resistor R951 07909KL 10Ω,0603,1/10W,±1%,RC0603FR- 21-1-000035 Chip resistor R954 0710RL 470KΩ,0603,1/10W,±1%,RC0603FR- 21-1-000092 Chip resistor R956 07470KL 10KΩ,0603,1/10W,±1%,RC0603FR-...
  • Page 34 1.0mm, 4Pin,, 105? L=60mm, (64401- 44-0-000582 FPC Cable Encorder-FPP 0427-0601) 1.0mm,28pin,L=140mm,,105?(64408- 44-0-001522 MDC to FPP 2827-1401) 45-2-000098 SMA RF Antenna K245-510002-A 45-2-000080 EXTERNAL Antenna FC6WFI0088A1,L=175+/-5mm 63-2-061013-1 Chassis SECC T=1.5mm 63-2-061014-0 Subfascia SECC T=1mm 63-2-061002-1 Top Cover SECC, T=2mm 63-2-061015-0 Module Bracket L SECC T=1.2mm 63-2-061016-0 Module Bracket R...
  • Page 35 C368 MECHANICAL EXPLODED VIEW S002 S001 R001 R002 R003 R004 R005 R006 T001 S003 C010 C012 C012 F017 S005 F016 S004 F015 C009 F014 C008 F013 C007 F012 C006 F011 C001 C002 C003 C004 C005 F001 F002 F003 F004 F005 F006 F007 F008...
  • Page 36 C368 EXPLODED VIEW PARTS LIST REF.NO. PART NO. DESCRIPTION Qty. PART NO. DESCRIPTION Qty. REF.NO. 91-0-000576 Foot Pad 63-2-061002-1 Top Cover C001 T001 71-1-061111-0 Foot C002 63-2-061013-1 Chassis C003 01-1-061012 MDC BOARD C004 63-2-061017-1 MCU Bracket 65-0-000770 C005 S001 Hexgon Scoket Screw(MF3X10) 63-2-061015-0 Module Bracket L 65-0-000069...
  • Page 37 C368 PACKING EXPLODED VIEW AND PARTS LIST 83-0-000053 Polybag 45-2-000098 Antenna 39-0-000003 Batteries 35-0-000057 Remote control 82-0-061001-1 EPE back left 81-0-061002-0 Sleeve Box 81-0-061001-1A shipping carton 82-0-061002-1 EPE back right 84-0-061001-0 Quick Setup Guide 83-0-000007 Manu Polyfbag 82-0-061005-0 EVA Clap board 82-0-061004-0 EPE front right 00-0610-00...
  • Page 38 NAD ELECTRONICS INTERNATIONAL TORONTO...

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