Aiwa-NSXSZ800-cs-sm维修电路原理图.pdf

SERVICE MANUALDATANSX-AJ800NSX-SZ800ULHCOMPACT DISC STEREO SYSTEMS/M Code No. 09-013-443-5R1REVISIONBASIC CD MECHANISM : BZG-5 ZD3N1MBASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM/ 6ZM-3 PR4NM This Service Manual is the “Revision Publishing” and replace “Simple Manual” NSX-AJ800/SZ800, (S/M Code No. 09-012-443-5T1). If requiring information about the CD mechanism, see Service Manual of BZG-5 (S/M Code No. 09-00C-353-3N2).NSXAJ800FRONTSPEAKERSYSTEMSXNAJ801CXNAJ800REMOTECONTROLLERRCBAS01CDCASSEIVERNSXSZ800SXWNSZ800CXNSZ800TAPEMECHANISM6ZM3 PR4NM2ZM3MK2PR4NMSATELLITESPEAKERSXS85RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSTUNERFM tuning range:87.5 MHz to 108 MHzFM usable Sensitivity(IHF):13.2 dBfFM antenna terminals:75 ohms (unbalanced)AM tuning range:530 kHz to 1710 kHz (10 kHz step)531 kHz to 1602 kHz (9 kHz step)AM usable sensitivity:350 ?V/mAM antenna:Loop antennaAMPLIFIERMain amplifierPower output:125 W + 125 W (50 Hz - 20 kHz,THD less than 1%, 6 ohms)156 W + 156 W (1 kHz, THD lessthan 10%, 6 ohms)Totalharmonic distortion:0.08% (70 W, 1 kHz, 6 ohms, DIN AUDIO)Main amplifierPower output:Rated: 120 W + 120 W (6 ohms,T.H.D. 1%, 1kHz)Reference: 150 W + 150 W (6 ohms,T.H.D. 10%, 1kHz)Totalharmonic distortion:0.08% (70 W, 1 kHz, 6 ohms, DIN AUDIO)Satellite amplifierPower output:15 W + 15 W (50 Hz - 20 kHz, THDless than 1%, 8 ohms)18 W + 18 W (1 kHz, THD less than10%, 8 ohms)Totalharmonic distortion:0.2% (7 W, 1 kHz, 8 ohms, DIN AUDIO)Satellite amplifierPower output:Rated: 16 W + 16 W (8 ohms, T.H.D.1%, 1kHz)Reference: 20 W + 20 W (8 ohms,T.H.D. 10%, 1kHz)Totalharmonic distortion:0.2% (7 W, 1 kHz, 8 ohms, DIN AUDIO)Input:VIDEO/AUX: 700 mVMIC: 1.7 mV (10 kohms)Output:FRONT SPEAKERS: 6 ohms or moreSTAELLITE SPEAKERS: 8 ohms or morePHONES: 32 ohms or moreCASSETTE DECKTrack format:4 tracks, 2 channels stereoFrequency response:50 Hz - 15 kHzRecording system:AC biasHeads:DECK 1: playback x 1DECK 2: recording/playback x 1,erase x 1CASSETTE DECKTrack format:4 tracks, 2 channels stereoFrequency response:CrO2 tape: 50 Hz 15000 HzNormal tape: 50 Hz 15000 HzRecording system:AC biasHeads:DECK 1: playback x 1DECK 2: recording/playback x 1,erase x 1CD PLAYERLaser:Semiconductor laser (?= 780 nm)D/A converter:1 bit dualSignal-to-noise ratio:85 dB (1 kHz, 0 dB)Harmonic distortion:0.05 % (1 kHz, 0 dB)FRONT SPEAKERS SX-NAJ801 ( only for NSX-AJ800)Speaker system:3 way, bass reflex (magnetic shielded)Speaker units:Woofer: 160 mm (63/8 in.) coneTweeter: 60 mm (23/8 in.) coneSuper tweeter: 20 mm (13/16 in.) ceramicImpedance:6 ohmsDimensions (W x H x D): 230 x 324 x 224 mm( 91/8 x 127/8 x 87/8 in.)Weight:3.8 kg (8 lbs 6 oz)FRONT SPEAKERS SX-WNSZ800 ( only for NSX-SZ800)Speaker system:3 way, Built-in subwoofer (magneticshielded type)Speaker units:Subwoofer: 160 mm cone typeFull range: 100 mm cone typeSuper tweeter: 20 mm ceramic typeImpedance:6 ohmsDimensions (W x H x D): 230 x 324 x 257 mmWeight:4.8 kgSATELLITE SPEAKERS SX-S85Speaker system:Full range (magnetic shielded type)Speaker units:80 mm cone typeImpedance:8 ohmsSensitivity:87 dB/W/mDimensions (W x H x D): 100 x 325 x 95 mm( 4 x 127/8 x 33/4 in.)(with pedestal)100 x 186 x 84 mm( 4 x 73/8 x 33/8 in.)(without pedestal)Weight:0.6 kg (1 lbs 5 oz)GENERALPower requirements:120 V AC, 60 Hz120 V/220 - 230 V/240 V AC(Switchable), 50 Hz/60 HzPower consumption:140 W, 180 WPower consumption in standby mode:With ECO mode on: 0.6 WWith ECO mode off: 24 W, 26 WDimensions ( W x H x D): 260 x 326 x 345 mm(101/4 x 127/8 x 135/8 in.)Weight:8.4 kg (18 lbs 8 oz), 8.9 kg Design and specifications are subject to change without notice. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc.RadioFans.CN 收音机爱 好者资料库This 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 OBJECTIVELENS ON THE OPTICAL PICK-UP BLOCK.Caution: 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.CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATPROTECTION 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 PWB 3 SolderRadioFans.CN 收音机爱 好者资料库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.BD101C101C1022234 4 RadioFans.CN 收音机爱 好者资料库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. 5 RadioFans.CN 收音机爱 好者资料库 6 DISASSEMBLY INSTRUCTIONS1. How to Remove PANEL, MOVE ASSYRemove the outside ornamental parts, CD mechanism,CABI. FR before starting the following procedure.1) Remove the FFC (1) and the three screws (2). Thenremove HLDR, MECHA ASSY.2) Remove the eight screws (1) and remove the PWB. FR (2).3)Remove the three FFC (1), (2), (3).4)Remove the two screws (1) and remove the HLDR,PANEL 2 (2). Then remove PANEL, MOVE 2 ASSY (3).5)Remove the screw (1) and the HLDR, PANEL (2). Thenremove PANEL, MOVE 1 ASSY (3).RadioFans.CN 收音机爱 好者资料库 7 2. How to Disassemble PANEL, MOVE 1 ASSY1)Insert a screwdriver tip into the clearance on top of thePANEL, MOVE 1 ASSY (1) and remove the PANEL,MOVE 1 F (3).2)Remove the claw (1) and remove the PWB, M-OPEPANEL (2).3. Note when Re-installing the HLDR, MECHA ASSYRe-installing the HLDR, MECHA ASSY after the PANEL,MOVE is closed.Re-install it in a way that the LEVER SW of the HLDR,MECHA ASSY is located beneath the PANEL, MOVE 1ASSY.RadioFans.CN 收音机爱 好者资料库KANRINO.REF. NO.DESCRIPTIONPART NO.KANRINO.REF. NO.DESCRIPTIONPART NO.ELECTRICAL MAIN PARTS LIST 8 ? ?!? ?!?!?!#?!?$?!?%?&?!?!?$?!?!?!?(?!?!?!?!?!?(!?$?!?(?!?(?!?!?(!?$?!?!?!?(?!?!?)?!? ?!?(?!?(?!?!?!?!?%?&?!?(?!?)?!?#*)?!?#?#?$?%?#?$?+?+?+?+?#?#?#?#?%?!?#?+?+?&?+?+?&?+?+?&?+?+?+?+?&?+?+?&?+?+?&?#?#?&?+?&?+?&?+?&?+?&?&?&?&?(?(?$?&?$?$?$?!?&?&?$?$?$?&?&?$?&?$?&?$?&?$?$?$? ? ?&?+?&?+?&?&?&?(?(?&?&?&?&?&?+?&?+?&?+?&?+?&?$?$?$?&?$?&?$?&?&?$RadioFans.CN 收音机爱 好者资料库KANRINO.REF. NO.DESCRIPTIONPART NO.KANRINO.REF. NO.DESCRIPTIONPART NO. 9 ? ?&?$?&?$?&?&?&?&?$?$?$?&? ?&?&?(?&?(?&?$?&?$?&?$?&?$?!#?&?$?&?$?$?$?&?$?&?$?&?(?&?(?&?(?&?&?&?$?&?&?&?&?&?&?&? ?&? ?&?&?&?$?&?&?$?&?$?&?&?$?&?&?$?&?$?$?$?&?&?&?$?&?$?$?&?$?&?&?&?$?&?&?&?&?!?&?&?&?&? ?&? ?&? ? ? ?&?&?!#?&?+?+?$?&?$?&?&?$?&?&?&?&?&?$?!?&?+?!?&?!?&?#?)?#?#?#? ?!?#? ?!RadioFans.CN 收音机爱 好者资料库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adioFans.CN 收音机爱 好者资料库KANRINO.REF. NO.DESCRIPTIONPART NO.KANRINO.REF. NO.DESCRIPTIONPART NO. 11 ?!?!?-?$?!?!?-?$?!)?(?,?#?&?&?$?&?$?$?&?&?!#?&?&?&?$?&?$?&?$?&?$?$?$?&?&?&?&?$?$?#?#?#?!?*?&? ?*?&? ?!?&?#?!?!?!?!?!?!?!?%?(?!?!?%?(?)?)?$?)?)?$?!?!?!?!?!?!?!?!?&?&?#?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!)?#?#?&?#?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?!?!?-?$?#!#?&?#?#!?!?!?!?#,?&?#?)?&?$?$?$?#?$)?!?,?#? ?!?(?&?#?#?&?(?(?#?+?#?)?#?#?+?#?)?#?#?,-?#?,-?#?,-?#?,-?#?,-?#!?(?&?#?#?&?(?(?#?+?#?)?#?#?+?#?)?#?#?,-?#?,-?#?,-?!?!?!?#?,-?#?,-?#!?&?+?,?#?#?)?#?#?)?&?+?,?#?#?)?!RadioFans.CN 收音机爱 好者资料库 12 8 8AResistor CodeChip Resistor Part CodingFigureValue of resistorChip resistorWattageTypeTolerance1/16W1/10W1/8W1608212532165%5%5%CJCJCJFormLWt1.60.80.4521.250.453.21.6108118128 : A : ACHIP RESISTOR PART CODE0.55Resistor CodeDimensions (mm)Symbol1/16W10055%CJ1.00.50.35104LtWTRANSISTOR ILLUSTRATION2SA1235F2SC2714O2SC3052FCMBT5551CMBT5401KRA102SKRA104SKRA107SKRC107SRT1P141CEBC2SA1980G2SA933SCDA1585BCCSC4115BCKTA1266GRKTC3198GRE C B2SB13422SD1933FP1016B C E2SK2158DSGE C BCC55512SJ4602SK2541S D GG D S2SK2937B C E2SA1979O/Y2SA1981Y2SC5342Y2SC5343GB C ECSB1370EFRadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库 14 SCHEMATIC DIAGRAM 1 (MAIN 1 / 2)RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 2 (MAIN 2 / 2: TUNER) 15 RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 3 (FAN) 16 RadioFans.CN 收音机爱 好者资料库? S?RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 4 (FRONT) 20 RadioFans.CN 收音机爱 好者资料库?A A?RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 5 (PANORAMA AMP) 22 RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 6 (PT: U) 24 RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库SCHEMATIC DIAGRAM 7 (PT: LH) 26 RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库?RadioFans.CN 收音机爱 好者资料库IC BLOCK DIAGRAM 29 RadioFans.CN 收音机爱 好者资料库FL (BJ815GNK) GRID ASSIGNMENT AND ANODE CONNECTION 30 GRID ASSIGNMENTRadioFans.CN 收音机爱 好者资料库 31 ANODE CONNECTIONRadioFans.CN 收音机爱 好者资料库IC DESCRIPTION 32 1O-C-SHIFTOClock shift output for micro computer when tuner receiving broadcast.2O-POWEROPower control ON/OFF output.3O-2PBODECK 2 / DECK 1 play output.4O-PANE-LEDOMoving PANEL LED ON/OFF output (Not used).5O-DATAOData output.6O-RMTOREC MUTE output.7O-BIASOBias ON/OFF output.8O-MUTEOSystem MUTE ON/OFF.9O-TU-ON/O-STB-SHIFT-VCDOTuner power supply ON/OFF output/MICON standby shift VCD output.10O-PANO-LEDOPanorama LED ON/OFF output.11HP-MUTEIHead phone jack detection. L : MUTE12RESETIReset input for MICON.13I-DISHICD turnable photo sensor input.14I-SUBQISUB-Q data input.15VSS1-Connected to ground.16CF1IOscillator circuit input (5.76 MHz).17CF2OOscillator circuit output (5.76 MHz).18VDD1-Digital power supply pin.19I-HOLDIPower failure detected input.20I-KEY1IKey A/D input 1.21I-KEY2IKey A/D input 2.22I-KEY3IKey A/D inp