Aiwa Cd Stereo System Xh-A1000 Parts & Service 电路图.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO SYSTEM BASIC TAPE MECHANISM : 6ZM-1 AR3NM BASIC CD MECHANISM : AZG-1 YZD3RDM XH-A1000EZ,K S/M Code No. 09-006-421-4R2 REVISION This Service Manual is the “Revision Publishing” and replaces “Simple Manual” XH-A1000 (EZ,K), (S/M Code No. 09-005-421-4T2). If requ

2、iring information about the CD mechanism, see Service Manual of AZG-1 (S/M Code No. 09-001-335-3N8). XHA1000RCAAS01 SYSTEM CD SPEAKERS REMOTE CXA1000 SXWA1000 SX-C1800 SXR1800 RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS SPECIFICATIONS .3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING .4 NOTE ON

3、 BEFORE STARTING REPAIR .5 6 DISASSEMBLY INSTRUCTIONS.7 8 ELECTRICAL MAIN PARTS LIST .9 16 TRANSISTOR ILLUSTRATION .17 WIRING 1 (MAIN / FAN) .18 SCHEMATIC DIAGRAM 1 (MAIN (1 / 4 : AMP SECTION) / CONNECT (1 / 3) .19 SCHEMATIC DIAGRAM 2 (MAIN (2 / 4 : POWER SUPPLY SECTION).20 SCHEMATIC DIAGRAM 3 (MAIN

4、 (3 / 4 : DECK SECTION) / HEAD) .21 SCHEMATIC DIAGRAM 4 (MAIN (4 / 4 : PRO LOGIC SECTION) .22 SCHEMATIC DIAGRAM 5 (FAN).23 WIRING 2 (FRONT / CONNECT) .24 SCHEMATIC DIAGRAM 6 (FRONT / CONNECT (2 / 3) / DECK / DECK MOTOR).25 WIRING 3 (OPERATE / KEY / MIC / LEDA D) .26 SCHEMATIC DIAGRAM 7 (OPERATE / KE

5、Y / MIC / LEDA D).27 WIRING 4 (LOW AMP) .28 SCHEMATIC DIAGRAM 8 (LOW AMP).29 WIRING 5 (5CH AMP) .30 SCHEMATIC DIAGRAM 9 (5CH AMP).31 WIRING 6 (VIDEO I/O / VIDEO JACK / VIDEO3 / SCART).32 SCHEMATIC DIAGRAM 10 (VIDEO I/O / VIDEO JACK / VIDEO3 / CONNECT (3 / 3) .33 SCHEMATIC DIAGRAM 11 (SCART).34 WIRIN

6、G 7 (TUNER) .35 SCHEMATIC DIAGRAM 12 (TUNER) .36 WIRING 8 (PT).37 SCHEMATIC DIAGRAM 13 (PT) .38 WIRING 9 (DECK / DECK MOTOR / HEAD) .39 FL (BJ733GK) GRID ASSIGNMENT / ANODE CONNECTION / PIN CONNECTION .40 FL (BJ734GK) GRID ASSIGNMENT / ANODE CONNECTION / PIN CONNECTION .41 IC BLOCK DIAGRAM.42, 43 IC

7、 DESCRIPTION .44 46 ADJUSTMENT 1 .47 ADJUSTMENT 2 .48 MECHANICAL EXPLODED VIEW 1 / 1.49 MECHANICAL PARTS LIST 1 / 1 .50 TAPE MECHANISM EXPLODED VIEW 1 / 2 .51 TAPE MECHANISM PARTS LIST 1 / 2 .52 TAPE MECHANISM EXPLODED VIEW 2 / 2 .53 TAPE MECHANISM PARTS LIST 2 / 2 .54 SPEAKER DISASSEMBLY INSTRUCTIO

8、NS.55 SPEAKER PARTS LIST.56 ACCESSORIES / PACKAGE LIST .57 RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS Main unit CX-A1000 Tuning range87.5 MHz to 108 MHz Usable sensitivity (IHF)16.8 dBf Antenna terminal75 ohms (unbalanced) Tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step)

9、Usable sensitivity350 V/m AntennaLoop antenna Tuning range144 kHz to 290 kHz Usable sensitivity1400 V/m AntennaLoop antenna Mid-high frequency amplifier Power outputFront Rated: 80 W + 80 W (8 ohms, T.H.D. 1 %, 200 Hz-20 kHz) Reference: 100 W + 100 W (8 ohms, T.H.D. 10 %, 200 Hz-20 kHz) Rear (Surrou

10、nd) Rated: 80 W + 80 W (8 ohms, T.H.D. 1 %, 1 kHz) Reference: 100 W + 100 W (8 ohms, T.H.D. 10 %, 1 kHz) EZ: DIN MUSIC POWER: 160 W+60W Center Rated: 80 W (8 ohms, T.H.D. 1 %, 1 kHz) Reference: 100 W (8 ohms, T.H.D. 10 %, 1 kHz) Total harmonic distortion0.15 % (40 W, 1 kHz, 8 ohms, DIN AUDIO/Front)

11、Low frequency + Sub woofer amplifier Power output Rated: 200 W + 200 W (6 ohms, T.H.D. 1 %, 100 Hz) Reference: 250 W + 250 W (6 ohms, T.H.D. 10 %, 100 Hz) EZ: DIN MUSIC POWER: 320 W+320 W Total harmonic distortion0.15 % (100 W, 100 Hz, 6 ohms, DIN AUDIO/Front) InputsAUX: 310 mV PHONO: 400 mV VIDEO1,

12、 VIDEO2, VIDEO3: 310 mV 5.1CH INPUT (adjustable) FRONT: 300 mV SURROUND: 300 mV CENTER: 600 mV SUB WOOFER: 300 mV MIC1, MIC2: 1.4 mV (20 kohms) OutputsCD DIGITAL OUT (OPTICAL) SPEAKERS: LOW + SUB WOOFER: 6 ohms HIGH: 8 ohms SURROUND SPEAKERS: accept speakers of 8 16 ohms CENTER SPEAKER: accepts spea

13、ker of 8 ohms or more PHONES (stereo jack): accepts headphones of 32 ohms or more Track format4 tracks, 2 channels stereo Frequency responseCrO2 tape: 50 Hz 16000 Hz Normal tape: 50 Hz 15000 Hz Signal-to noise ratio60 dB (Dolby B NR ON, CrO2 tape peak level, above 400 Hz) Recording systemAC bias Hea

14、dsRecording/playback head x 1, erase head x 1 LaserSemiconductor laser ( =780 nm) D/A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.03 % (1 kHz, 0 dB) Power requirements230 V AC, 50 Hz Power consumption350 W Dimensions of main unit360 x 372 x 423 mm (W x H x D) We

15、ight of main unit18.5 kg Speaker system SX-WA1000 Cabinet type4 way, built-in subwoofer SpeakersSubwoofer:220 mm cone type Woofer:160 mm cone type Tweeter:60 mm cone type Super tweeter: 20 mm ceramic type Impedance6 ohms / 8 ohms Output sound pressure level 89 dB/W/m Dimensions (W x H x D)250 x 592

16、x 300 mm Weight11.7 kg Speaker system SX-R1800 SpeakersFull-range: 100 mm x 1, cone type Impedance8 ohms Dimensions (W x H x D)120 x 230 x 175 mm Weight1.9 kg Speaker system SX-C1800 SpeakersFull-range: 100 mm x 2, cone type Impedance8 ohms Dimensions (W x H x D)430 x 120 x 175 mm Weight2.7 kg Desig

17、n and specifications are subject to change without notice. Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY”, the double-D symbol and PRO LOGIC are trademarks of Dolby Laboratories Licensing Corporation. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc.

18、 Under license from BBE Sound,Inc. RadioFans.CN 收音机爱 好者资料库 4 CLASS 1LASER PRODUCT KLASSE 1LASER PRODUKT LUOKAN 1LASER LAITE KLASS 1LASER APPARAT This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EX

19、IT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJEC- TIVE LENS ON THE OPTICAL PICK-UP BLOCK. sCaution: Invisible laser radiation when open and interlocks defeated avoid exposure to bea

20、m. sAdvarsel: Usynlig laserstling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling. VAROITUS! Laiteen Kyttminen muulla kuin tss kyttohjeessa mainitulla tavalla saataa altistaa kyt-tjn turvallisuusluokan 1 ylittvlle nkymttmlle lasersteilylle. VARNING! Om apparaten anvn

21、ds p annat stt n vad som specificeras i denna bruksanvising, kan anvndaren utsttas fr osynling laserstrlning, som verskrider grnsen fr laserklass 1. PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CAUTION Use of controls or adjustments or performance of proce- dures other than those specified he

22、rin may result in hazardous radiation exposure. ATTENTION Lutillisation de commandes, rglages ou procdures autres que ceux spcifis peut entraner une dangereuse exposition aux radiations. ADVARSEL Usynlig laserstling ved bning, nr sikkerhedsafbrydereer ude af funktion. Undg udsttelse for strling. Thi

23、s Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior. solder (KSM 880CAB) Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not

24、 touch the diode. 1) After the connection, remove solder shown in the right figure. Precaution to replace Optical block PICKUP Assy P.C.B. 5 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rated power (W)Parts number (C101, 102)resistor () 25-48100387-A00-247-090 49-140220587-A00-232-

25、090 Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the reference numbers of the charging capacitors on schematic diagram before starting the discharging work. 2. Check items before exchanging the MICROCOMPUTER Be sure to c

26、heck the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective. 2-1. Regarding the HOLD terminal of the MICROCOMPUTER When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be op

27、erating correctly. When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any abnormalities that trig

28、gers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”. Good or no good judgement of the MICROCOMPUTER 11111Turn 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 t

29、he HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is judged to be good. 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set that uses relay circuit in the power supp

30、ly block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary trouble, perform the following measures before starting repair wor

31、k. Discharge procedure 11111Remove the AC power cord. 22222Connect a discharging resistor at an end of lead wire that has clips at both ends. Connect the other end of the lead wire to metal chassis. 33333Contact the other end of the discharging resistor to the positive (+) side (+VH) of C101. (For t

32、wo seconds) 44444Contact the same end of the discharging resistor as step 33333 to the negative (-) side (-VH) of C102 in the same way. (For two seconds) 55555Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope. Select a discharging resistor ref

33、erring to the following table.Fig-1 MAIN C.B D101 C101C102 22 34 6 In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 2-2. Regarding reset There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even

34、 though the AC power cord 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 to exchange the MICROCOMPUTER. In such a case, perform the forced-rese

35、t by the following procedure and check good or no good 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 is good. Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending on the models. Be sure t