NAD C446 Service Manual
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NAD C446 Service Manual

Digital media tuner
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See also: Owner's Manual
DRAFT DATE: November 2011
NAD
C 446
Digital Media Tuner

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Summary of Contents for NAD C446

  • Page 1 DRAFT DATE: November 2011 C 446 Digital Media Tuner...

  • Page 2: Safety Information

    SAFETY INFORMATION C 446 Digital Media Tuner 100-240V 50/60Hz 25W CUSTOM MANUFACTURED TO NAD SPECIFICATIONS IN THE PEOPLE`S REPUBLIC OF CHINA Page 2...

  • Page 3: Table Of Contents

    CONTENTS DESCRIPTION PAGE SAFETY INFORMATION ..................2 SPECIFICATIONS ....................4 REAR PANEL / FRONT PANEL VIEW ..............5 DISASSEMBLY INSTRUCTIONS ................. 6 WIRING DIAGRAM ....................7 BLOCK DIAGRAM ....................9 SPECIAL FUNCTION KEYS ................10 PCB LAYOUT ...................... 11 SCHEMATIC DIAGRAM ..................17 ELECTRICAL PARTS LIST .................

  • Page 4: Specifications

    REFERENCE SPECIFICATIONS FM SECTION Usable Sensitivity (98 MHz) 10 dB Signal/Noise Ratio 65 dB (60 dB IHF-WTD Mono) 60 dB (60 dB IHF-WTD Stereo) Frequency Response ±1.5 dB (20 Hz - 15 kHz, 60 dB ) Channel Separation (60 dB ) - 30 Hz 33 dB 1 kHz 40 dB...

  • Page 5: Rear Panel / Front Panel View

    DIGITAL OUT POWER RS232 MP DOCK +12V TRIGGER DATA PORT © NAD C 446 7 RS 232 1 FM ANTENNA TERMINAL AM ANTENNA TERMINAL 8 MP DOCK 2 DAB ANTENNA TERMINAL (230V version model only) 3 AUDIO OUT 9 +12V TRIGGER IN...

  • Page 6: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. Remove machine screws M6.0 x 8.0 ( x 7pcs) from the side panels Refer to Figure No.1 Figure No.1 2. Pull both sides of the TOP COVER slightly outwards and tilt approx. 35°and then remove in the direction as indicated. Refer to Figure No.2 Figure No.2 Page 6...

  • Page 7: Wiring Diagram

    WIRING DIAGRAM FPP Board Encode FM/AM Tuner MainBoard PowerBoard Page 7...
  • Page 8 WIRING DIAGRAM PARTS LIST ITEM Part Number Description Remark 14-44604 -01 Cable L=80 mm Encode FPP Board MainBoard U SB 14-44604 -00 Cable L=205mm FPPBoard USB FPPBoard 14-44624 -00 Cable L=175mm 14-98017 -10 Cable MainBoard L=50mm FM/AM Tuner MainBoard PowerBoard 14-44610-00 Cable L=200mm...

  • Page 9: Block Diagram

    BLOCK DIAGRAM RS232 LOGIC Main MCU 4VAC 60VD 5V6D ENCODER GP1UV701QS Buffer Key and IR front panel TRIG IN Renesas M30281 BOE CIG128X32 IR IN IR TRIG RS232 RS232 IPOD control +12VA FM ANTENNA KUANGXIN FM/AM/RDS MODULE RDS DATA kst-mb114ma1-23 FM/AM LO AM ANTENNA NE5532...

  • Page 10: Special Function Keys

    SPECIAL KEYS Function Keys Notes Source left + BACK Reset AH Source right + SETUP Reset C INFO + SETUP Page 10...

  • Page 11: Pcb Layout

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  • Page 17: Schematic Diagram

    SCHEMATIC DIAGRAM MAIN BOARD - 1 R601 C601 C602 AGND 3V3D R602 R603 22pF AGND 100N C603 U601 C6006 J601A R605 R606 R607 22U/6.3V C604 R609 C6140 R608 AGND 47RJ DIT_MCK 220pF 3V3D AMUTEC 100pF 330R R611 U603A 10UF/16V MIX_RST NE5532 ADC_MCK AOUTA-...
  • Page 18 C419 SD_PROTEVT SD_DETECT L401 L402 R408 100nF R409 LCD_M_HSYNC LCD_F_VSYNC OPEN 100nF LCD_LRS_EN LCD_PE_CLK 100nF 6.8uH 6.8uH C445 R410 C420 C446 DGND Ground(LCD) LCD_DAT0 C447 C448 C421 C449 C450 D401 C451 LCD_DAT1 LCD_DAT2 RESET 100nF 100nF DGND 100uF 100uF LCD_DAT3...
  • Page 19 FPP BOARD U201 R201 3V3F 100R R202 DGND 3V3S C202 C203 TSOP34838 22u/6v3 100N C201 J201 47U/16 C204 U203 DGND DGND DGND 100N 3V3S R203 3V3F ICSP CON201 D201 DGND MCLR C205 ENCAa U205 C206 3V3F DGND ENCA 100N U206 DGND PGDATA R204...
  • Page 20 POWER BOARD CY903 1nF/1KV 100nF/250VAC U904 NJM78M12FA CX901 330UF/50V +12V R911 R914 D907 330k 330UF/25V CY902 47k/2W C917 MURS120 C919 C912 C922 1nF/1KV D906 C913 J901 10nF/1kV R917 R913 KBP208 C914 CX902 C918 C921 330k 750K D908 ZV901 330nF/250VAC MURS120 330UF/25V 68uF/400V C920...

  • Page 21: Electrical Parts List

    ELECTRICAL PARTS LIST MAIN ＢＯＡＲＤ　ＡＳＳＹ．（ＡＨ－Ｖｅｒｓｉｏｎ　０１－４４６０１－９８）（Ｃ－Ｖｅｒｓｉｏｎ　０１－４４６０１－９９）　ｗ／ｏ　Ｍｅｄｉａ　Ｍｏｄｕｌｅｅ PCB ASSEMBLY A16-44601-22　　　　Ｃ446　MAIN ＰＣＢ　ｗ／ｏ　ｐａｒｔｓ　 RESISTOR R415, R652, R668, R1000, R1001,R1002, 07-90000-00 0Ω, 0603, ±5%,RC0603JR-070RL R1003 R636 07-90339-00 3.3Ω,0603,1/10W,±5%,RC0603JR-073R3L R667, R679, R680,R681, R682 07-91009-00 10Ω,0603,1/10W,±1%,RC0603FR-0710RL R401, R402, R403,R405, R407, R411,R412, R413, R414,R640, R645, R648, R649, R673, 07-90330-00 33Ω,0603,1/10W,±5%,RC0603JR-0733RL R419,R420, R422, R424,R428, R431...
  • Page 22 C442, C453,C462, C464, C632, C635, C611, 26-10660-00 5%,JMK107BJ106MAT C6001, C6002 C603, C610, C628, C618, C640, C61 26-22660-11 22uF,6.3V,X5R,0805 C421, C685 27-10011-03 10uF,10V,±10%,T491A106K010AT C446, C451 27-47060-01 47uF,6.3V,±20%,T491A476M006AT EC601, EC602 06-10011-09 VSS or CS Series,10uF,16V,±20%,85℃ 220uF,16V,±20%,105℃,VZH221M1C0607- C406, C412 06-22111-24 C406, C412 or 27-22111-00 220uF,10V,±10%,T491D227K010AT...
  • Page 23 FB401, FB402, FB403, FB404, FB405, FB406,FB407, FB408, FB601,FB602, L601, 08-04601-15 742792651, 600ohm@100MHz,1A FB61 FB401, FB402, FB403, FB404, FB405, MPZ1608S601A , or 08-04601-04 FB406,FB407, FB408, FB601,FB602, L601, 600ohm@100MHz,1A FB61 L401, L402 08-04689-00 6.8uH,74451068,SMD PBY160808T-121Y-N, ±25% 120Ω R4244,R4241,R4243 08-04121-00 @100MHZ Diode D401 33-20036-00 SS36B D601, D602...
  • Page 24 C658 06-22011-01 CD110,22uF,16V,±20%,F2.5 C655, C656, C663, C664, C668, C669, C670, 06-33021-03 33uF,25V,±20%,85℃,ECEA1EKS330i C675, C676,C677 C1444 06-47021-00 CD110,47uF,25V,±20%, F5.0 C427, C449, C450, C621, C622 06-10111-04 CD110,100uF,16V,±20%,85℃,F2.5 C1443 06-10121-00 CD110,100uF,25V,±20%,F5.0 C646 06-22111-09 CD110,220uF,16V,±20%,F2.5 C613 06-33111-03 CD263(X),330uF,16V,±20%,F3.5 C415 06-47121-00 CD110,470uF,25V,±20%,F5.0 CONNECTOR J401 13-22504-00 XHB 2.5A-4A J605 17-02002-07...
  • Page 25 D208 33-40021-11 BAV21W D206 33-11000-05 BZT52C10,10V,350mW D209 33-17509-04 BZT52C7V5,7.5V,500mW U205 03-01826-01 PIC18F26K20 U206 03-00244-08 SN74HCT244PWR U208 03-00125-06 SN74AHC1G125DCKR U209 03-00244-06 SN74LVC244APWR U210 03-00734-01 NC7NZ34K8X U211 03-01117-01 LM1117MPX-5.0/NOPB/ AMS1117-5.0 U212 03-00165-01 SN74HC165D/MM74HC165M/74HC165D Resistor R210, R211, R212, R213 07-90000-00 0Ω,0603,1/10W,±5% RC0603JR-070RL R202 07-91009-00 10Ω,0603,1/10W,±1%,RC0603FR-0710RL R201, R208, R221,R222, R228, R229, R232,...
  • Page 26 R227 07-90101-02 100Ω,1206,1/4W,±5%,RC1206JR-07100RL R244 07-90471-02 470Ω,1206,1/4W,±5%,RC1206JR-07470RL R235, R251, R252, R253, R256, R257, R280, 07-90103-02 10KΩ,1206,1/4W,±5%,RC1206JR-0710KL R281, R282 R203 07-90223-02 22KΩ,1206,1/4W,±5%,RC1206JR-0722KL R207, R209, R214, R219 07-90121-10 120Ω, ±5% R0603X4 R265, R266 07-20000-51 0Ω,1/4W,±5% Capacitor C214, C218, C219, C220 26-33151-20 330pF, 50V, C0G, ±1%,0603, C234, C237 26-10351-00 10nK,50V,0603,X7R,C2012X7R1H103KT...

  • Page 27: Power Board

    FPP ENCODE BOARD A16-44604-22 FPP ENCODE PCB w/o PARTS Connector CON203 13-22504-00 XHB 2.5A-4A V201 37-15244-00 EC11E15244G1 Power BOARD A16-44603-21 SMPS PCB w/o PARTS Diode D907, D908, D910 33-20120-01 MURS120/MURS120T3G D905 33-20007-00 M7A, 1A 1000V BR902 33-30062-00 0.8A600V B6S Regulator IC901, IC902 03-00431-11 TL431BCDBZTG4...
  • Page 28 CX902 A25-33422-00 MKP62, 330nF,275VAC, ±10% CX901 A25-10422-07 0.1uF/275V,13mm*6mm CY901, CY902, CY903, CY904 A05-10242-00 1nF, 400V(X1), 250V(Y1), ±5% C917 05-10313-01 10nF,1KV,±20%,Pitch=5mm C931 05-22113-02 220pF,1KV,10% CD294,68uF, 400V, ±20%, Pitch=10mm, C918 06-68042-01 D=22 C904 06-10042-00 CD11H, 10uF,400V, ±20% C926, C927 06-22211-07 CD286, 2200uF, 16V, ±20%, 105℃, F5.0 C919, C920 06-33151-02 CD287,330uF,50V, ±20%...
  • Page 29 14-44604-00 Gold WiFi connector and cable for WiFi antenna. 29-44600-00 PCB Assemblies C446 C/CT main assembly programmed for C/CT-units includes media module 01-44601-20 C446 AH main assembly programmed for AH-units includes media module 01-44601-10 C446 AH/C SMPS power supply assembly 01-44603-00 C446 Front Panel Keyboard with VFD attached.

  • Page 30: Exploded View

    EXPLODED VIEW Complete Fascia Assemblies Contain (1, 2, 3, 9, 10, 12, 13, 14/15, 16, 17, 35, 36) Graphite for C-version fascia assembly (with the DAB+ logo) P/N: 02-44698-00 Graphite for AH-version fascia assembly (without the DAB+ logo) P/N: 02-44697-00 02-44699-00 Titanium fascia assembly (with the DAB+ logo) P/N: Page 30...

  • Page 31: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Ｔ Ｉ Ｍ Ｅ Ａ Ｐ Ｔ Ｒ Ｎ 　 ． Ｏ Ｄ Ｓ Ｅ ． Ｃ Ｑ Ｙ Ｔ １ ７０－２２３０１１－４Ａ ＦＡＳＣＩＡ　　　　　　　　　　　　　　　　　　　　　　　（ＲＯＨＳ） １ ２ ７０－２２３００３－１ ＬＥＦＴ　Ｅｎｄ　ＣＡＰ　　　　　　　　　　　　　　　　　（ＲＯＨＳ） １ ３ ７０－２２３００４－１ ＲＩＧＨＴ　ＥＮＤ　ＣＡＰ　　　　　　　　　　　　　　　　（ＲＯＨＳ） １ ４ ６５－２２３００３－１ ＴＯＰ　ＣＯＶＥＲ　　　　　　　　　　　　　　　　　　　　（ＲＯＨＳ） １ ５...

  • Page 32: Packing Diagram

    PACKING DIAGRAM Page 32...

  • Page 33: Packing Parts List

    PACKING PARTS LIST ITEM PART NO. DESC. 90-009002-1 Non-woven Cloth BAG 90-001001-0 Polybag (ROSH) 89-223002-0 EPE End Cap right (ROSH) 89-223001-0 EPE End Cap left (ROSH) 30-44460-00 INSTRUCTION (ROSH) 90-001002-0 Polybag (ROSH) 90-223001-0 Polybag (ROSH) J30-14460-00 Remote Control (ROSH) 30-22100-10 AA Batteries (ROSH) 30-34702-00...

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