Aiwa-NSXT77-cs-sm维修电路原理图.pdf

SERVICE MANUALDATACOMPACT DISC STEREOCASSETTE RECEIVERNSX-D77NSX-T76NSX-T77ULHHSS/M Code No. 09-005-425-2R2REVISIONBASIC TAPE MECHANISM: 2ZM-3MK2 PR4NMBASIC CD MECHANISM: 6ZG-1 ZRNDMCDCASSEIVERCXND77CX-NT76CX-NT77SPEAKERSXWND77SX-WNT98SX-WNT77 REMOTE CONTROLLERRCZAS04SYSTEMNSXD77NSX-T76NSX-T77 This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-D77 (S/M Code No. 09-002-425-2T2) and NSX-T76 (S/M Code No. 09-004-425-2T3) and NSX-T77 (S/M Code No. 09-004-425-2T4). If requiring information about the CD mechanisim, see Service Manual of 6ZG-1 (S/M Code No. 09-001-338-7N2).RadioFans.CN 收音机爱 好者资料库SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity(IHF)13.2 dBfAntenna terminals75 ohms (unbalanced)Tuning range531 kHz to 1602 kHz (9 kHz step)530 kHz to 1710 kHz (10 kHz step)Usable sensitivity350 uV/mAntennaLoop antennaMid-high frequency amplifier Power output*40 W + 40 W (200 Hz - 20 kHz,THD less than 1%, 8 ohms)Rated: 44 W + 44 W (8 ohms,THD 1%, 1 kHz)Reference: 55 W + 55 W (8 ohms,THD 10%, 1 kHz)Rated: 56 W + 56 W (8 ohms,THD 1%,1 kHz)Reference: 70 W + 70 W(8 ohms, THD 10%,1 kHz) Total harmonic distortion 0.3% (26 W, 1 kHz, 8 ohms, DINAUDIO)0.3% (28 W, 1 kHz, 8 ohms, DINAUDIO)Low frequency amplifier Power output*120 W + 120 W (50 Hz - 200 Hz,THD less than 1%, 6 ohms)Rated: 131 W + 131 W (6 ohms,THD 1%, 75 Hz)Reference: 165 W + 165 W(6 ohms, THD 10%,75 Hz)Rated: 167 W + 167 W (6 ohms,THD 1%, 75 Hz)Reference: 210 W + 210 W(6 ohms, THD 10%, 75 Hz) Total harmonic distortion 0.3 % (65 W,75 Hz,6 ohms,DIN AUDIO)0.3 % (84 W,75 Hz,6 ohms,DIN AUDIO)* without connecting to surround speakersInputsVIDEO/AUX: 300 mV (adjustable)MD: 300 mV (adjustable)MIC 1,MIC 2: 1 mV (10 kohms)OutputsLINE OUT: 150 mVSPEAKERS HIGH FREQ:accept speakers of 8 ohms or moreSPEAKERS LOW FREQ:accept speakers of 6 ohms or moreSURROUND SPEAKERS: acceptspeakers of 8 to 16 ohmsPHONES (stereo jack): acceptsheadphones of 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency responseCrO2 tape: 50 Hz 16000 HzNormal tape: 50 Hz 15000 HzSignal-to-noise-ratio60dB (Dolby B NR ON, CrO2 tapepeak level)Recording systemAC biasHeadsDeck 1: Playback head x 1Deck 2: Recording/Playback headx 1, erase head x 1LaserSemiconductor laser ( =780 nm)D-A converter1 bit dualSignal-to-noise ratio83 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow and flutterUnmeasurableCabinet type4 way, built-in subwoofer(magnetic shielded type)SpeakersSubwoofer:200 mm ( 77/8 in.) cone typeWoofer:120 mm ( 43/4 in.) cone typeTweeter:60 mm ( 23/8 in.) cone typeSuper Tweeter:20 mm (13/16 in.) ceramic typeImpedance6 ohms / 8 ohmsOutput sound pressure level 87 dB/W/mDimensions (W x H x D)260 x 383 x 326 mm(97/8 x 151/8 x 121/4 in.)Weight7.5 kg (16 lbs 9 oz)Cabinet type4 way, built-in subwooferSpeakersSubwoofer:200 mm ( 77/8 in.) cone typeMid range:100 mm ( 315/16 in.) cone typeTweeter:60 mm ( 23/8 in.) cone typeSuper Tweeter:20 mm (13/16 in.) ceramic typeImpedance6 ohms / 8 ohmsOutput sound pressure level 87 dB/W/mDimensions (W x H x D)260 x 463 x 314 mm(101/4 x 181/4 x 123/8 in.)Weight8.0 kg (17 lbs. 10 oz)Cabinet type4 way, built-in subwoofer(magnetic shielded type)SpeakersSubwoofer:200 mm ( 77/8 in.) cone typeMid range:100 mm ( 4 in.) cone typeTweeter:60 mm ( 23/8 in.) cone typeSuper Tweeter:20 mm (13/16 in.) ceramic typeImpedance6 ohms / 8 ohmsOutput sound pressure level 87 dB/W/mDimensions (W x H x D)260 x 463 x 314 mm(101/4 x 18 x 123/8 in.)Weight7.0 kg (15 lbs 7 oz)Power requirements120 V AC, 60 Hz, 220 V AC, 60 HzAC 120 V/220-230 V/240 V,(switchable ) 50/60HzPower consumption170 W, 245 W, 275 WDimensions of main unit300 x 382.6 x 396.4mm(117/8 x 151/8 x 15 5/8in.)Weight of main unit13.2 kg (29 lbs 2 oz)13.7 kg (30 lbs 3 oz)Standby power consumptionIf the power-economizing mode is OFF: 35 W, 36 WIf the power-economizing mode is ON: 0.9 W Design and specifications are subject to change without notice. Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc.- 2 -RadioFans.CN 收音机爱 好者资料库- 3 -CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATThis set employs laser. Therefore, be sure to follow carefullythe instructions below when servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASEREXIT WITH THE EYE TOO CLOSELY. IN CASE IT ISNECESSARY TO CONFIRM LASER BEAM EMISSION.BE SURE TO OBSERVE FROM A DISTANCE OF MORETHAN 30cm FROM THE SURFACE OF THE OBJEC-TIVE LENS ON THE OPTICAL PICK-UP BLOCK.sCaution: Invisible laser radiation whenopen and interlocks defeated avoidexposure to beam.sAdvarsel: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessamainitulla tavalla saataa altistaa kyt-tjnturvallisuusluokan 1 ylittvlle nkymttmllelasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad somspecificeras i denna bruksanvising, kan anvndarenutsttas fr osynling laserstrlning, som verskridergrnsen fr laserklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse of controls or adjustments or performance of proce-dures other than those specified herin may result inhazardous radiation exposure.ATTENTIONLutillisation de commandes, rglages ou procduresautres que ceux spcifis peut entraner une dangereuseexposition aux radiations.ADVARSELUsynlig laserstling ved bning, nr sikkerhedsafbrydereerude af funktion. Undg udsttelse for strling.This Compact Disc player is classified as a CLASS 1LASER product.The CLASS 1 LASER PRODUCT label is located on therear exterior.Precaution to replace Optical block(KSS-213F)Body or clothes electrostatic potential couldruin laser diode in the optical block. Be sureground body and workbench, and use care theclothes do not touch the diode.1) After the connection, remove solder shown inright figure.PICK-UP Assy P.C.BSolderRadioFans.CN 收音机爱 好者资料库- 4 -NOTE ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (W)Parts number(C101, 102)resistor ()25-48100387-A00-247-09049-140220587-A00-232-090Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check thereference numbers of the charging capacitors on schematic diagram before starting the discharging work.2. Check items before exchanging the MICROCOMPUTERBe sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirmingthat the MICROCOMPUTER is surely defective.2-1. Regarding the HOLD terminal of the MICROCOMPUTERWhen the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLDterminal before exchange.When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has anyabnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.Good or no good judgement of the MICROCOMPUTER11111Turn on the AC main power.22222Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.33333When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and theMICROCOMPUTER is judged to be good.1. Forced discharge of electrolytic capacitor of power supply blockWhen repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged acrossthe electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defectcan occur.In order to prevent the secondary trouble, perform the following measures before starting repair work.Discharge procedure11111Remove the AC power cord.22222Connect a discharging resistor at an end of lead wire thathas clips at both ends. Connect the other end of the leadwire to metal chassis.33333Contact the other end of the discharging resistor to thepositive (+) side (+VH) of C101. (For two seconds)44444Contact the same end of the discharging resistor as step33333 to the negative (-) side (-VH) of C102 in the same way.(For two seconds)55555Check that voltage across C101 and C102 has decreasedto 1 V or less using a multimeter or an oscilloscope.Select a discharging resistor referring to the following table.Fig-1MAIN C.BD101C101C1022234RadioFans.CN 收音机爱 好者资料库- 5 -In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.2-2. Regarding resetThere are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC powercord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and toexchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or nogood of the MICROCOMPUTER.11111Remove the AC power cord.22222Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.33333Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER isgood.Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change dependingon the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.2-3. Confirmation of soldering state of MICROCOMPUTERCheck the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange theMICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.Fig-2-2MICRO-COMPUTERMICROCOMPUTERFRONT C.BFRONT C.BVSSVDDC113*%C1131815Short with tweezers.RadioFans.CN 收音机爱 好者资料库KANRINO.REF. NO.DESCRIPTIONPART NO.KANRINO.REF. NO.DESCRIPTIONPART NO.- 6 -ELETRICAL MAIN PARTS LISTIC 8A-NF3-635-010 C-IC,LC876596W-5P43 87-A21-482-010 IC,RPM6938-H4 87-A20-869-040 C-IC,M62449FP 87-A21-398-010 IC,STK490-110 87-A21-397-010 IC,STK490-070 87-A20-355-010 IC,CXA1553P 87-A20-783-040 C-IC,BA7762AFS 87-A21-577-040 C-IC,M61506FP 87-070-289-040 IC,BU 2092F 87-A21-021-040 C-IC,BU2099FV 87-A21-018-040 C-IC,M65849BFP631D 87-A21-452-030 C-IC,BD3876KS2 87-A21-051-040 C-IC,BU9990-03FS 87-A21-560-010 IC,LA1844L-A 87-070-127-110 IC,LC72131D 87-020-454-010 IC,DN6851TRANSISTOR 87-A30-217-010 TR,2SB1436(R) 87-026-245-080 TR,DTC114ES 87-A30-198-080 TR,KTC3199GR 89-213-702-010 TR,2SB1370 (1.8W) 87-026-610-080 TR,KTC3198GR 87-A30-105-080 C-TR,RT1P441C 87-A30-489-040 C-TR,KRA107S 87-A30-468-080 C-TR,KRC102S-RTK 87-A30-484-080 C-TR,KRA102S 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2SA1235F 87-A30-318-080 TR,CSA952K 87-A30-218-080 TR,2SB1237(Q) 87-A30-087-080 C-FET,2SK2158 87-A30-269-040 C-FET,2SJ461-T1 87-A30-073-080 C-TR,RT1N 141C 87-A30-074-080 C-TR,RT1P 141C 87-A30-190-080 TR,CC5551 87-A30-097-010 TR,FN 1016 87-A30-098-010 TR,FP 1016 87-A30-106-040 C-TR,CMBT5551 87-A30-276-040 C-TR,DTA143EKA 87-A30-063-080 C-TR,KRA104S 87-026-609-080 TR,KTA1266GR 87-A30-107-070 C-TR,CMBT5401 87-A30-186-010 FET,2SK3053 87-A30-086-070 C-TR,CSD1306E 87-A30-329-080 TR,CD1585BC 89-327-143-080 TR,2SC2714 (0.1W) 87-A30-072-080 C-TR,RT1P 144C 87-A30-234-080 TR,CSC4115BC 87-026-463-080 TR,2SA933SRSDIODE 87-A40-673-090 DIODE,D10XB20 87-A40-553-080 DIODE,1N4003 LES 87-A40-784-080 ZENER,UZ39BSB 87-020-465-080 DIODE,1SS133 87-A40-764-080 ZENER,UZ10BSC 87-A40-781-080 ZENER,UZ36BSA 87-A40-438-080 ZENER,MTZJ4.7A 87-017-447-010 DIODE,GBU4DL-6419 87-017-654-060 DIODE,GBU6JL6131 87-070-274-080 DIODE,1N4003 SEM 87-A40-313-080 C-DIODE,MC 2840 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-768-080 ZENER,UZ16BSA 87-017-154-080 ZENER,HZS6C3L 87-020-331-080 CHIP-DIODE,DAN202K 87-A40-488-080 DIODE,1SS244 87-A40-747-080 ZENER,UZ5.1BSB 87-A40-751-080 ZENER,UZ6.2BSB 87-A40-646-010 DIODE,FMB-G16L 87-A40-745-080 ZENER,UZ4.7BSA 87-A40-749-080 ZENER,UZ5.6BSB 87-017-149-080 ZENER,HZS6A2LMAIN C.B C3 87-012-368-080 C-CAP,S 0.1-50 F C4 87-012-368-080 C-CAP,S 0.1-50 F C21 87-016-035-090 CAP,E 6800-35 VR C22 87-016-035-090 CAP,E 6800-35 VR C25 87-010-990-080 CAP,E 33-100 M SME C26 87-016-300-080 CAP,E 22-100 M SME C27 87-010-990-080 CAP,E 33-100 M SME C28 87-016-300-080 CAP,E 22-100 M SME C31 87-010-263-080 CAP, ELECT 100-10V C32 87-010-197-080 CAP, CHIP 0.01 DM C34 87-010-247-080 CAP, ELECT 100-50V C35 87-010-406-080 CAP,E 22-50 M 11L SME C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-393-080 CAP,E 100-35 M SME C39 87-010-393-080 CAP,E 100-35 M SME C40 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 C60 87-010-403-080 CAP, ELECT 3.3-50V C80 87-010-401-080 CAP, ELECT 1-50V C81 87-010-374-080 CAP, ELECT 47-10V C82 87-010-260-080 CAP, ELECT 47-25V C104 87-010-196-080 CHIP CAPACITOR,0.1-25 C105 87-010-196-080 CHIP CAPACITOR,0.1-25 C111 87-010-401-080 CAP, ELECT 1-50V C112 87-010-401-080 CAP, ELECT 1-50V C115 87-010-401-080 CAP, ELECT 1-50V C116 87-010-401-080 CAP, ELECT 1-50V C117 87-012-142-080 C-CAP,S 0.33-16 Z F GRM C118 87-012-142-080 C-CAP,S 0.33-16 Z F GRM C121 87-010-406-080 CAP, ELECT 22-50 C122 87-010-406-080 CAP, ELECT 22-50 C151 87-010-405-080 CAP,E 10-50 M 11L SME C152 87-010-260-080 CAP,E 47-25 M 11L SME C163 87-010-196-080 CHIP CAPACITOR,0.1-25 C171 87-012-368-080 C-CAP,S 0.1-50 F C172 87-012-368-080 C-CAP,S 0.1-50 F C173 87-012-368-080 C-CAP,S 0.1-50 F C174 87-012-368-080 C-CAP,S 0.1-50 F C175 87-A11-572-080 C-CAP,S 0.015-50 K B C176 87-A11-572-080 C-CAP,S 0.015-50 K B C177 87-010-197-080 CAP, CHIP 0.01 DM C178 87-010-197-080 CAP, CHIP 0.01 DM C301 87-010-318-080 C-CAP,S 47P-50 CH C302 87-010-318-080 C-CAP,S 47P-50 CH C303 87-012-157-080 C-CAP,S 330P-50 CH C304 87-012-157-080 C-CAP,S 330P-50 CH C305 87-012-157-080 C-CAP,S 330P-50 CH C306 87-012-157-080 C-CAP,S 330P-50 CH C307 87-010-196-080 CHIP CAPACITOR,0.1-25 C311 87-010-198-080 CAP, CHIP 0.022 C312 87-010-198-080 CAP, CHIP 0.022 C313 87-010-180-080 C-CER 1500P C314 87-010-180-080 C-CER 1500P C315 87-010-178-080 CHIP CAP 1000P C316 87-010-178-080 CHIP CAP 1000P C317 87-A10-201-080 C-CAP,S0.33-16 KB C318 87-A10-201-080 C-CAP,S0.33-16 KB C319 87-012-141-080 CHIP-CAPACITOR,0.22-16F C320 87-012-141-080 CHIP-CAPACITOR,0.22-16FRadioFans.CN 收音机爱 好者资料库KANRINO.REF. NO.DESCRIPTIONPART NO.KANRINO.REF. NO.DESCRIPTIONPART NO.- 7 - C321 87-012-141-080 CHIP-CAPACITOR,0.22-16F C322 87-012-141-080 CHIP-CAPACITOR,0.22-16F C324 87-010-260-080 CAP, ELECT 47-25V C325 87-010-370-080 CAP,E 330-6.3 SME C327 87-010-404-080 CAP, ELECT 4.7-50V C328 87-010-404-080 CAP, ELECT 4.7-50V C332