NAD-T163-pre-sm维修电路原理图.pdf

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1、NAD SERVICE MANUALT 163 T 163 AV Tuner Preamplifier AV Tuner Preamplifier DRAFT DATE: 25 MAR 2004RadioFans.CN 收音机爱 好者资料库 2 SAFETY INFORMATION RadioFans.CN 收音机爱 好者资料库 3 SERVICE SAFETY PRECAUTIONS 1. Replacing the fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME

2、TYPE OF FUSE. Reference DesignatorPart NumberDescription F751 33-0151009-00-88FUSE 500mA 250VAC TIME-LAG 5X20mm 5T UL/CSA/VDE/SEMKO F752 33-0111009-00-88FUSE 1A 250VAC TIME-LAG 5X20mm 5T UL/CSA/VDE/SEMKO 2. Safety check out (Only U.S.A. model) Before returning the product to the customer, make leaka

3、ge current or resistance measurements to determine that exposed parts are acceptably insulated from supply circuit. CONTENTS DESCRIPTIONPAGE SPECIFICATIONS. 4 - 5 REAR PANEL / FRONT PANEL VIEW . 6 DISASSEMBLY INSTRUCTIONS . 7 WIRING DIAGRAM. 8 BLOCK DIAGRAM. 9 SPECIAL FUNCTION . 10 DETAILS & WAVEFOR

4、MS ON SYSTEM & TEST & DEBUGGING . 10 PCB LAYOUT .11 - 19 SCHEMATIC DIAGRAM . 20 - 32 IC BLOCK DIAGRAM . 33 - 40 EXPLODED VIEW. 41 EXPLODED VIEW PARTS LIST. 42 - 43 ELECTRICAL PARTS LIST . 44 - 55 PACKING DIAGRAM . 56 VERSION HISTORY . 57 Parts marked with the symbol are critical with regard to the r

5、isk of fire and electric shock. Replace only with parts recommended by the manufacturer. RadioFans.CN 收音机爱 好者资料库 4 SPECIFICATIONS PRE AMPLIFIER SECTION Rated distortion(2 VPre-out, THD 20 Hz-20 kHz FL/C/FR) 0.1 % (2 VPre-out, THD 20 Hz-20 kHz SL/SR/BS) 0.1 % Input Sensitivity(2 VPre-out, 1 kHz)520 2

6、0 mV S/N Ratio(A-wtd, 1kHz, 1 W, 2 VPre-out, FL/C/FR/SL/SR/BL) 80 dB Frequency Response(20 Hz - 20 kHz)0 1.0 dB Channel Balance(1 dB to -40 dB, 1 kHz) 2 dB (-41 dB to -50 dB, 1 kHz) 3 dB Audio muting at 1 kHz 55 dB Subwoofer out, 500 mV in (THD at 2 V O/P, 100 Hz) 0.5 % Crosstalk(500 mV input, 1 VPr

7、e-out) 60 dB Controls Bass(at 500 mV in, 1 W out, 100 Hz) 10 dB 2 dB Treble(at 500 mV in, 1 W out, 10 kHz) 10 dB 2 dB DOLBY DIGITAL SECTION Channel Difference (FL ref. Track 30) 1.2 dB Frequency Resporse at Dolby config.2SL Track 46 200 - 20 kHz 0.8 dB SR Track 47 200 - 20 kHz 0.8 dB C Track 44 200

8、- 20 kHz 0.8 dB Harmonic Distortion (2 VPre-out, Audio LPF, Dolby Congfig 1) FL Track 65 997 Hz 0.08 % FR Track 67 997 Hz 0.08 % SL Track 68 997 Hz 0.08 % SR Track 69 997 Hz 0.08 % C Track 66 997 Hz 0.08 % S/N Ratio(TRACK 30 for O/P 1 W, PAUSE)CCIR / ARM 65 dB Audio LPF 70 dB A-WTD 70 dB DOLBY PRO L

9、OGIC II SECTION Frequency Resporse I/P mode : L, R: 1 V in, 1 W, Ch L/R40 Hz0 2.0 dB 20 kHz0 2.0 dB I/P mode : L=R: 1 V in, 1 W, Ch /L/R40 Hz0 2.0 dB Ch C20 kHz0 2.0 dB I/P mode : L=-R: 1 V in, 1 W, Ch SL/SR40 Hz0 2.0 dB 20 kHz0 2.0 dB S/N Ratio (200 mV in, 1 W, A-WTD w/ 1 k termination) I/P mode :

10、L, R: 1 kHz, Ch L/R 65 dB I/P mode : L=R: 1 kHz, Ch C 65 dB I/P mode : L=-R: 1 kHz, Ch SL/SR 65 dB THD (2.2 V in, 1 W, w/ 80 kHz LPF, 1 kHz) 0.2 % RadioFans.CN 收音机爱 好者资料库 5 DTS SECTION Output Level (Vol 0 dB): FL/FR/C/SL/SRTrack 61 kHz90 10 mV Channel Difference (FL ref): FL/FR/C/SL/SRTrack 61 kHz 1

11、.0 dB Harmonic Distortion (Audio Filter) : FL/FR/C/SL/SRTrack 10-14 1 kHz 0.08 % Frequency Response (20 Hz to 20 kHz)Track 26-30+2/-1.5 Subwoofer Output Level1 kHz ref at pre-out (FL)Play Track 10, charge to 1512.5 1.5 dB AM TUNER SECTION Input level is expressed as the reading in open circuit of 75

12、-ohm source impedance signal generator Usable sensitivity(999/1000 kHz) 30 dBuV S/N Ratio(5 mV in) 38 dB THD(5 mV in) 3 % IF Rejection(450 kHz) 36 dB Image Rejection(F+2xIF) 28 dB Selectivity 17 dB Output200 20 mV Loop sensitivity(20 dB S/N) 999/1000 kHz 66 dB 603/600 kHz 66 dB 1404/1400 kHz 66 dB F

13、requency Response(100 - 2.3 kHz, 5 mV) 6 dB FM TUNER SECTION*C*AH Input level is expressed as the reading in open circuit of 75-ohm source impedance signal generator Usable sensitivity(98 MHz) 15 dBV 15 dBuv S/N Ratio(60 dB, IHF wtd)Mono 63 dB 63 dB Stereo 63 dB 63 dB Frequency Response(20 Hz - 15 k

14、Hz, 60 dB)0 1.5 dB0 1.5 dB Channel Separation(60 dB)100 Hz 30 dB 30 dB 1 k 38 dB 38 dB 10 kHz 30 dB 30 dB Alternate Channel Selectivity (40 dB, 400 kHz) 60 dB 45 dB Capture Ratio(40 dB) 3 dB 3 dB AM Suppression (60 dB, 100% Mod. FM, 30% Mod. AM) 48 dB 48 dB Image Rejection(119.4 MHz) 65 dB I.F. Reje

15、ction(10.7 MHz) 78 dB Pilot Suppression(98 MHz) 60 dB 60 dB THD (60 dB, L=R 75 kHz for AH, 40 kHz Dev for C)Mono 0.25 % 0.25 % Stereo 0.35 % 0.35 % Auto-Search SensitivityOn 24 dB 24 dB Off 15 dB 15 dB RDS decode Sensitivity 26 dB PHYSICAL SPECIFICATIONS Dimensions (Width x Height x Depth)435 x 150

16、x 399 mm Net Weight8 Kg (17.60 lbs) Shipping Weight10.2 Kg (22.40 lbs) RadioFans.CN 收音机爱 好者资料库 6 FRONT PANEL REAR PANEL / FRONT PANEL VIEW REAR PANEL 1.MONITOR OUT 2.CD INPUT 3.FM & AM ANTENNA 4.DIGITAL AUDIO INPUT & DIGITAL AUDIO OUTPUT 5.COMPONENT VIDEO IN & COMPONENT VIDEO OUT 6.POWER SWITCH 7.12

17、0V / 230V VOLTAGE SELECTOR 8.RS-232 9.AUTO TRIGGER SWITCH 10.AC POWER INLET 11.MS OUT (MULTISOURCE OUT) 12.IR INPUT & OUTPUT 13.DVD, SAT, VCR, VIDEO 4 & VIDEO 5 14.PRE-OUTS / SUBWOOFER OUT 15.TAPE INPUT & OUTPUT 16.DISC INPUT 17.7.1 CH. INPUTS 1.STANDBY SWITCH 2.STANDBY LED 3.AM / FM 4.DISPLAY 5.MEM

18、ORY 6.FM MUTE / MODE 7.PRESET DOWN / UP 8.SEARCH DOWN / UP 9.VFL DISPLAY 10.VOLUME (SETUP) 11.VIDEO & AUDIO 12.TAPE MONITOR 13.DIGITAL AUDIO SELECTOR 14.EXT. 7.1 15.SURROUND MODE 16.LEVELS 17.TONE CONTROLS 18.TONE DEFEAT 19.VIDEO 6 INPUT 20.PHONES RadioFans.CN 收音机爱 好者资料库 7 DISASSEMBLY INSTRUCTIONS 1

19、.Remove machine screws M4.0 x 8.0 (1 to 6) from the side panels. Remove tapping screw 3.0 x 8.0 (7 to 10) from the back panel. Refer to Figure No. 1. 2.Pull both sides of the TOP COVER slightly outwards 11 and tilt approx. 35 and then remove in the direction as indicated by the arrow 12. Refer to Fi

20、gure No. 2. Figure No. 1 Figure No. 2 RadioFans.CN 收音机爱 好者资料库 8 AUDIO BOARD PRE-OUT BOARD MULTI-CHANNEL COMPONENT VIDEO BOARD DIGITAL BOARD POWER SUPPLY BOARD MAIN BOARD POWER SWITCH BOARD J753B KEYBOARD TUNER VIDEO 6 BOARD J753A J901A POWER LED BOARD FROM TRANSFORMER J751B FROM TRANSFORMER J754B J7

21、57AJ756A J756B J757B 82-0426135-01-XX CABLE ASSY 4 WAYS #26 2.5P UL2877 L=430MM 82-0426135-02-XX CABLE ASSY 4 WAYS #26 2.5P UL 2877 L=500MM 82-0226135-04-XX CABLE ASSY 4 WAYS #26 2.5P UL1533 L=540MM 82-0426135-00-XX CABLE ASSY 4 WAYS#26 2.5P UL 2877 L=200MM 82-0526135-01-XX CABLE ASSY 5 WAYS #26 2.5

22、P UL2468 L=150MM 82-0326135-08-XX CABLE ASSY 3 WAYS #26 2.5P UL2854 L=300MM 82-0626135-03-XX CABLE ASSY 6 WAYS #26 2.5P UL2877 L=480MM W/HOUSING 82-0826135-03-XX CABLE ASSY 8 WAYS #26 2.5P UL2877 L=450MM 82-0326135-06-XX CABLE ASSY 3 WAYS #26 2.5P UL2854 L=250MM 82-0116435-04-XX CABLE ASSY 1 WAY #16

23、 UL1672 BROWN L=160MM 82-0116435-05-XX CABLE ASSY 1 WAY #16 UL1672 BLUE L=160MM 82-0426135-05-XX CABLE ASSY 4 WAYS #26 2.5P UL2468 L=400MM 82-0826135-01-XX CABLE ASSY 8 WAYS #26 2.5P UL2877 L=450MM 82-1026135-01-XX CABLE ASSY 10 WAYS #26 2.5P UL2877 L=540MM 36-2828201-71-XX FFC CABLE 28 PINS P1.25 L

24、=200MM 36-2028121-71-XX FFC CABLE 20 PINS P1.25 L=120MM 36-1728301-71-XX FFC CABLE 17 PINS P1.25 UL2896 L=300MM 36-3028061-71-XX FFC CABLE 30 PINS P1.25 L=60MM 82-0526135-02-XX CABLE ASSY 5 WAYS #26 2.5P UL2468 L=120MM 82-0118435-01-XX CABLE ASSY 1 WAY #18 UL1007 BLACK L=360MM W/RING TERMINAL T163 W

25、IRE DIAGRAMREV.A DATE 16-6-2003 36-2828141-71-XX FFC CABLE 28 PINS P1.25 L=140MM 82-0118435-00-XX CABLE ASSY 1 WAY #18 UL1007 BLACK L=100MM W/ RING TERMINAL 82-0116435-06-XX CABLE ASSY 1 WAY #16 UL1007 BLACK L=70MM W/ RING TERMINAL 82-0118435-00-XX CABLE ASSY 1 WAY #18 UL1007 BLACK L=100MM W/ RING T

26、ERMINAL J704A J708A J707A J710A J717A J719A J720A J715A J713AJ714A J709A J721A J724A J702B J782 J714BJ713B J715B DSP BOARD J1010B J1009B J1009A 724B J719B J717B J601A J602A J603A J601B J602B J603B J783A J414B J1010A J701 P4401 VIDEO BOARD S-VIDEO BOARD MS OUT BOARD WIRING DIAGRAM RadioFans.CN 收音机爱 好

27、者资料库 9 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 10 SPECIAL FUNCTION FEATUREKEYS PRESS ON FRONT PANEL RESET FOR AH VERSIONVIDEO + TONE DEFEAT RESET FOR C VERSIONVIDEO + TONE CONTROLS NTSC / PAL SELECTIONVIDEO + MEMORY VFD ALL DISPLAYAUDIO + TAPE MONITOR AM FREQ. STEPAM/FM + FM MUTE DETAILS & WAVEFORMS O

28、N SYSTEM TEST & DEBUGGING T89C51RD2 (U202) main clock is at 20MHz (X202) T89C51RD2 (U201) main clock is at 20MHz (X201) UPPER - +5V supply to KEYBOARD when power up LOWER - RESET line (TCM810LENB713) when power up UPPER - OUTPUT ENABLE (pin 24) of EPROM (W27C02) when changing SURROUND MODES LOWER -

29、CHIP ENABLE (pin 22) of EPROM (W27C02) when changing SURROUND MODES SCLK (pin 43 of CS49326) LRCLK (pin 42 of CS49326) MCLK (pin 30 of CS49326) NOTE: The waveforms are based on software version V1.26. RadioFans.CN 收音机爱 好者资料库 11 PCB LAYOUT AUDIO BOARD COMPOSITE VIDEO BOARD RadioFans.CN 收音机爱 好者资料库 12

30、COMPONENT VIDEO BOARD - COMPONENT SIDE COMPONENT VIDEO BOARD - COPPER SIDE DIGITAL BOARD - COMPONENT SIDE DIGITAL BOARD - COPPER SIDE RadioFans.CN 收音机爱 好者资料库 13 DSP BOARD - COPPER SIDE DSP BOARD - COMPONENT SIDE RadioFans.CN 收音机爱 好者资料库 14 KEY BOARD / LED BOARD - COMPONENT SIDE KEY BOARD / LED BOARD

31、- COPPER SIDE RadioFans.CN 收音机爱 好者资料库 15 MAIN BOARD RadioFans.CN 收音机爱 好者资料库 16 MULTI-CHANNEL BOARD - COMPONENT SIDE MULTI-CHANNEL BOARD - COPPER SIDE RadioFans.CN 收音机爱 好者资料库 17 POWER SUPPLY (STANDBY) S-VIDEO BOARD RadioFans.CN 收音机爱 好者资料库 18 PRE-OUT BOARD - COMPONENT SIDE PRE-OUT BOARD - COPPER SIDE

32、RadioFans.CN 收音机爱 好者资料库 19 MULTI SOURCE POWER SWITCH VIDEO 6 BOARD LED BOARD TRIGGER BOARD RadioFans.CN 收音机爱 好者资料库 20 SCHEMATIC DIAGRAM AUDIO SWITCH RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS

33、 OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 21 COMPONENT VIDEO RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 22 E C B 2

34、SA933 DTC144ESA E C B DTA144ESA E C B COMPOSITE VIDEO RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 23 POWER SUPPLY (STAND BY) E C B 2S

35、C1815 RESISTORS : F-FUSIBLE, UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. COMPONENTS MARKED “” ARE SAFETY CRITIAL PARTS. RadioFans.CN 收音机爱 好者资料库 24 TRIGGER DTC123ESA E C B RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE:1. R

36、ESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 25 VIDEO 6 RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS,

37、 UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 26 DIGITAL IN & OUT RadioFans.CN 收音机爱 好者资料库 27 E C B 2SA933 E C B 2SC1740 E C B 2SC1815 2SC2878 DTC144ESA DTC123ESA E C B S-VIDEO NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWI

38、SE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 28 E B C 2SD600K DTC114ESA DTA114ESA E C B MAIN BOARD NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 29 E C B RN1241 DTA114ESA E C BE C B 2S

39、A1016K 2SC2362 PRE-OUT NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 5%. RadioFans.CN 收音机爱 好者资料库 30 E C B 2SC1815 DSP RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED

40、, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 31 KEYBOARD E C B 2SC1815 E C B 2SC1015 NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 5%. RadioFans.CN 收音机爱 好者资

41、料库 32 E C B 2SC2878 E B C SS8050 SS8550 DTA114ESA DTC114ESA E C B MUTLI-CH RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM. NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%. 2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%. RadioFans.CN 收音机爱 好者资料库 33 IC BLOCK DI

42、AGRAM 1 2 3 4 5 6 7 8 9 10 DIR A1 A2 A3 A4 A5 A6 A7 A8 GND 20 19 18 17 16 15 14 13 12 11 VCC G B1 B2 B3 B4 B5 B6 B7 B8 (1) (2) (3) (4) (5) (6) (7) (8) (9) (11) (19) (18) (17) (16) (15) (14) (13) (12) OE CK D01D C1 EN D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 74LVQ574 DSP BOARD: U1008, U1009 W27C0

43、20 DSP BOARD: U1007 Q0 Q7 CE OE A0 CONTROL OUTPUT BUFFER CORE ARRAY DECODER PGM VCC GND VPP A17 31 22 24 74LVC245 DSP BOARD: U1002, U1003, U1014 74VHC245 KEYBOARD: U209 NJM5532 / NJM4558 DSP BOARD: U1011U1013, U1023 & U1025 MULTI-CHANNEL: U604U607 PRE-OUT BOARD: U609U613 MAIN BOARD: U708 1 A - + 2 3 4 8 7 6 5 B + - CS4360KZ DSP BOARD: U1026 RadioFans.CN 收音机爱 好者资料库 34 CS49326 DSP BOARD: U1001 CS8415A DSP BOARD: U1005 CS4392 DS