NAD-T163-avr-sm 维修电路原理图.pdf
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1、NADSERVICE MANUALT 163T 163AV Tuner PreamplifierAV Tuner PreamplifierDRAFT DATE: 25 MAR 2004RadioFans.CN 收音机爱 好者资料库2SAFETY INFORMATIONRadioFans.CN 收音机爱 好者资料库3SERVICE SAFETY PRECAUTIONS1. Replacing the fusesCAUTION:FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OFFUSE.R
2、eference DesignatorPart NumberDescriptionF751 33-0151009-00-88FUSE 500mA 250VAC TIME-LAG 5X20mm5T UL/CSA/VDE/SEMKOF752 33-0111009-00-88FUSE 1A 250VAC TIME-LAG 5X20mm5T UL/CSA/VDE/SEMKO2. Safety check out(Only U.S.A. model)Before returning the product to the customer, make leakage current or resistan
3、ce measurements to determinethat exposed parts are acceptably insulated from supply circuit.CONTENTSDESCRIPTIONPAGESPECIFICATIONS. 4 - 5REAR PANEL / FRONT PANEL VIEW . 6DISASSEMBLY INSTRUCTIONS . 7WIRING DIAGRAM. 8BLOCK DIAGRAM. 9SPECIAL FUNCTION . 10DETAILS & WAVEFORMS ON SYSTEM & TEST & DEBUGGING
4、. 10PCB LAYOUT .11 - 19SCHEMATIC DIAGRAM . 20 - 32IC BLOCK DIAGRAM . 33 - 40EXPLODED VIEW. 41EXPLODED VIEW PARTS LIST. 42 - 43ELECTRICAL PARTS LIST . 44 - 55PACKING DIAGRAM . 56VERSION HISTORY . 57Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace on
5、ly with parts recommended by the manufacturer.4SPECIFICATIONSPRE AMPLIFIER SECTIONRated 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 20 mVS/N Ratio(A-wtd, 1kHz, 1 W, 2 VPre-out, FL/C/FR/SL/SR/BL) 80 dBFrequ
6、ency Response(20 Hz - 20 kHz)0 1.0 dBChannel Balance(1 dB to -40 dB, 1 kHz) 2 dB(-41 dB to -50 dB, 1 kHz) 3 dBAudio muting at 1 kHz 55 dBSubwoofer out, 500 mV in (THD at 2 V O/P, 100 Hz) 0.5 %Crosstalk(500 mV input, 1 VPre-out) 60 dBControlsBass(at 500 mV in, 1 W out, 100 Hz) 10 dB 2 dBTreble(at 500
7、 mV in, 1 W out, 10 kHz) 10 dB 2 dBDOLBY DIGITAL SECTIONChannel Difference (FL ref. Track 30) 1.2 dBFrequency Resporse at Dolby config.2SL Track 46 200 - 20 kHz 0.8 dBSR Track 47 200 - 20 kHz 0.8 dBC Track 44 200 - 20 kHz 0.8 dBHarmonic Distortion (2 VPre-out, Audio LPF, Dolby Congfig 1) FL Track 65
8、 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 dBAudio LPF 70 dBA-WTD 70 dBDOLBY PRO LOGIC II SECTIONFrequency ResporseI/P mode : L, R: 1 V in, 1 W, Ch L/R40 Hz0 2.0 dB20 kHz0 2.0 dB
9、I/P mode : L=R: 1 V in, 1 W, Ch /L/R40 Hz0 2.0 dB Ch C20 kHz0 2.0 dBI/P mode : L=-R: 1 V in, 1 W, Ch SL/SR40 Hz0 2.0 dB20 kHz0 2.0 dBS/N Ratio (200 mV in, 1 W, A-WTD w/ 1 k termination)I/P mode : L, R: 1 kHz, Ch L/R 65 dBI/P mode : L=R: 1 kHz, Ch C 65 dBI/P mode : L=-R: 1 kHz, Ch SL/SR 65 dBTHD (2.2
10、 V in, 1 W, w/ 80 kHz LPF, 1 kHz) 0.2 %5DTS SECTIONOutput Level (Vol 0 dB): FL/FR/C/SL/SRTrack 61 kHz90 10 mVChannel Difference (FL ref): FL/FR/C/SL/SRTrack 61 kHz 1.0 dBHarmonic 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/-1.5Su
11、bwoofer Output Level1 kHz ref at pre-out (FL)Play Track 10, charge to 1512.5 1.5 dBAM TUNER SECTIONInput level is expressed as the reading in open circuitof 75-ohm source impedance signal generatorUsable sensitivity(999/1000 kHz) 30 dBuVS/N Ratio(5 mV in) 38 dBTHD(5 mV in) 3 %IF Rejection(450 kHz) 3
12、6 dBImage Rejection(F+2xIF) 28 dBSelectivity 17 dBOutput200 20 mVLoop sensitivity(20 dB S/N)999/1000 kHz 66 dB603/600 kHz 66 dB1404/1400 kHz 66 dBFrequency Response(100 - 2.3 kHz, 5 mV) 6 dBFM TUNER SECTION*C*AHInput level is expressed as the reading in open circuitof 75-ohm source impedance signal
13、generatorUsable sensitivity(98 MHz) 15 dBV 15 dBuvS/N Ratio(60 dB, IHF wtd)Mono 63 dB 63 dBStereo 63 dB 63 dBFrequency Response(20 Hz - 15 kHz, 60 dB)0 1.5 dB0 1.5 dBChannel Separation(60 dB)100 Hz 30 dB 30 dB1 k 38 dB 38 dB10 kHz 30 dB 30 dBAlternate Channel Selectivity (40 dB, 400 kHz) 60 dB 45 dB
14、Capture Ratio(40 dB) 3 dB 3 dBAM Suppression (60 dB, 100% Mod. FM, 30% Mod. AM) 48 dB 48 dBImage Rejection(119.4 MHz) 65 dBI.F. Rejection(10.7 MHz) 78 dB Pilot Suppression(98 MHz) 60 dB 60 dBTHD (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 Sensitivity
15、On 24 dB 24 dBOff 15 dB 15 dBRDS decode Sensitivity 26 dB PHYSICAL SPECIFICATIONSDimensions (Width x Height x Depth)435 x 150 x 399 mmNet Weight8 Kg (17.60 lbs)Shipping Weight10.2 Kg (22.40 lbs)(17-1/8 x 5-15/16 x 15-3/8)6FRONT PANELREAR PANEL / FRONT PANEL VIEWREAR PANEL1.MONITOR OUT2.CD INPUT3.FM
16、& AM ANTENNA4.DIGITAL AUDIO INPUT &DIGITAL AUDIO OUTPUT5.COMPONENT VIDEO IN &COMPONENT VIDEO OUT6.POWER SWITCH7.120V / 230V VOLTAGE SELECTOR8.RS-2329.AUTO TRIGGER SWITCH10.AC POWER INLET11.MS OUT (MULTISOURCE OUT)12.IR INPUT & OUTPUT13.DVD, SAT, VCR, VIDEO 4 & VIDEO 514.PRE-OUTS / SUBWOOFER OUT15.TA
17、PE INPUT & OUTPUT16.DISC INPUT17.7.1 CH. INPUTS1.STANDBY SWITCH2.STANDBY LED3.AM / FM4.DISPLAY5.MEMORY6.FM MUTE / MODE7.PRESET DOWN / UP8.SEARCH DOWN / UP9.VFL DISPLAY10.VOLUME (SETUP)11.VIDEO & AUDIO12.TAPE MONITOR13.DIGITAL AUDIO SELECTOR14.EXT. 7.115.SURROUND MODE16.LEVELS17.TONE CONTROLS18.TONE
18、DEFEAT19.VIDEO 6 INPUT20.PHONES7DISASSEMBLY INSTRUCTIONS1.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 removein th
19、e direction as indicated by the arrow 12. Refer to Figure No. 2.Figure No. 1Figure No. 28AUDIO BOARDPRE-OUT BOARDMULTI-CHANNELCOMPONENTVIDEO BOARDDIGITAL BOARDPOWER SUPPLYBOARDMAIN BOARDPOWER SWITCHBOARDJ753BKEYBOARDTUNERVIDEO 6 BOARDJ753AJ901APOWER LED BOARDFROM TRANSFORMERJ751BFROM TRANSFORMERJ754
20、BJ757AJ756AJ756BJ757B82-0426135-01-XXCABLE ASSY 4 WAYS#26 2.5P UL2877 L=430MM82-0426135-02-XXCABLE ASSY 4 WAYS#26 2.5P UL 2877L=500MM82-0226135-04-XXCABLE ASSY 4 WAYS#26 2.5P UL1533L=540MM82-0426135-00-XXCABLE ASSY 4 WAYS#262.5P UL 2877 L=200MM82-0526135-01-XXCABLE ASSY 5 WAYS #262.5P UL2468 L=150MM
21、82-0326135-08-XXCABLE ASSY 3 WAYS #262.5P UL2854 L=300MM82-0626135-03-XXCABLE ASSY 6 WAYS #26 2.5PUL2877 L=480MM W/HOUSING82-0826135-03-XXCABLE ASSY 8 WAYS #262.5P UL2877 L=450MM82-0326135-06-XXCABLE ASSY 3 WAYS #262.5P UL2854 L=250MM82-0116435-04-XXCABLE ASSY 1 WAY #16UL1672 BROWN L=160MM82-0116435
22、-05-XXCABLE ASSY 1 WAY #16UL1672 BLUE L=160MM82-0426135-05-XXCABLE ASSY 4 WAYS #262.5P UL2468 L=400MM82-0826135-01-XXCABLE ASSY 8 WAYS#26 2.5P UL2877 L=450MM82-1026135-01-XXCABLE ASSY 10 WAYS #262.5P UL2877 L=540MM36-2828201-71-XXFFC CABLE 28 PINSP1.25 L=200MM36-2028121-71-XXFFC CABLE 20 PINSP1.25 L
23、=120MM36-1728301-71-XXFFC CABLE 17 PINSP1.25 UL2896 L=300MM36-3028061-71-XXFFC CABLE 30 PINSP1.25 L=60MM82-0526135-02-XXCABLE ASSY 5 WAYS#26 2.5P UL2468L=120MM82-0118435-01-XXCABLE ASSY 1 WAY #18UL1007 BLACK L=360MMW/RING TERMINALT163 WIRE DIAGRAMREV.A DATE 16-6-200336-2828141-71-XXFFC CABLE 28 PINS
24、 P1.25L=140MM82-0118435-00-XXCABLE ASSY 1 WAY #18UL1007 BLACK L=100MMW/ RING TERMINAL82-0116435-06-XXCABLE ASSY 1 WAY #16UL1007 BLACK L=70MMW/ RING TERMINAL82-0118435-00-XXCABLE ASSY 1 WAY #18UL1007 BLACK L=100MMW/ RING TERMINALJ704AJ708AJ707AJ710AJ717AJ719AJ720AJ715AJ713AJ714AJ709AJ721AJ724AJ702BJ7
25、82J714BJ713BJ715BDSP BOARDJ1010BJ1009BJ1009A724BJ719BJ717BJ601AJ602AJ603AJ601BJ602BJ603BJ783AJ414BJ1010AJ701P4401VIDEO BOARDS-VIDEO BOARDMS OUTBOARDWIRING DIAGRAM9BLOCK DIAGRAM10SPECIAL FUNCTIONFEATUREKEYS PRESS ON FRONT PANELRESET FOR AH VERSIONVIDEO + TONE DEFEATRESET FOR C VERSIONVIDEO + TONE CON
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