Aiwa-XRHG2MD-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA MD / CD STEREO SYSTEM BASIC TAPE MECHANISM : ZZM-2 YPR1NF BASIC CD MECHANISM : AZG-1 YSB3RMDM BASIC MD MECHANISM : AZG-E D XR-HG2MDK, EZ S/M Code No. 09-00B-437-4N2 If requiring information about the CD mechanism, see Service Manual of AZG-1 YSB3RMDM, (S/M Code No. 09-001-335-3NE

2、). If requiring information about the MD mechanism, see Service Manual of AZG-E D, (S/M Code No. 09-006-347-9N2). XR-HG2MD SYSTEM CD CASSEIVER CX-NHG2MD SPEAKER SX-NHG2RC-ZAS16 REMOTE CONTROLLER RadioFans.CN 收音机爱 好者资料库 2 Main unit Tuning range87.5 MHz to 108 MHz Usable sensitivity (IHF)16.8 dBf Ante

3、nna terminals75 ohms (unbalanced) Tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step) Usable sensitivity350 V/m AntennaLoop antenna Tuning range144 kHz to 290 kHz Usable sensitivity1400 V/m AntennaLoop antenna Power output *Rated: 20 W + 20 W (6 ohms, T.H.D. 1 %, 1 kHz / D

4、IN 45500) Reference: 25 W + 25 W (6 ohms, T.H.D. 10 %, 1 kHz / DIN 45324) EZ: DIN MUSIC POWER 42 W + 42 W Total harmonic distortion0.06 % (10 W, 1 kHz, 6 ohms, DIN AUDIO) * without connecting to the SURROUND SPEADIRS. InputsVIDEO / AUX: 500 mV DIGITAL IN SPEAKERS: accept speakers of 6 hms SURROUND S

5、PEAKERS: accept speakers of 8 to 16 ohms OutputsSUPER WOOFER: 1.1 V PHONES (stereo mini jack): accepts headphones of 32 ohms or more CD DIGITAL OUT (OPTICAL) Track format4 tracks, 2 channels stereo Frequency response50 Hz to 8000 Hz Recording systemAC bias HeadsDeck 1: Recording / Playback head x 1,

6、erase head x 1 Deck 2: Playback head x 1 LaserSemiconductor laser ( = 780 nm) D-A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Wow and flutterUnmeasurable SPECIFICATIONS Scanning methodNon-contact optical scanner (Semiconductor laser applicatio

7、n) Recording systemMagnetic polarity modulation overwrite system Rotation speedApprox. 400 to 900 rpm (CLV) Sampling frequency44.1kHz No. of channelsStereo: 2 channels Monaural: 1 channel A-D, D-A converter1-bit Frequency20 to 20000 Hz +0.5 to -1.5 dB Wow and flutterUnmeasurable Power requirements23

8、0 V AC, 50 Hz Power consumption95 W Power consumption inIf the power-economizing mode is standby modeECO OFF: 15 W If the power-economizing mode is ECO ON or ECO AUTO: 0.9 W Dimensions of main unit260 x 329 x 344 mm (W x H x D) Weight of main unit7.2 kg Cabinet type2 way, bass reflex (magnetic shiel

9、ded type) SpeakersWoofer : 120 mm cone type Tweeter: 20 mm ceramic type Impedance6 ohms Output sound pressure level 87 dB/W/m Dimensions220 x 324 x 204 mm (W x H x D) Weight2.0 kg Design and specifications are subject to change without notice. Dolby noise reduction manufactured under license from Do

10、lby Laboratories Licensing Corporation. DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCT KLASSE 1LASER PRODUKT LUOKAN 1LASER LAITE KLASS 1LASER APPARAT This set employs laser. Therefore, be sure to follow careful

11、ly the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT 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 BLO

12、CK. sCaution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam. 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 altist

13、aa kyt-tjn turvallisuusluokan 1 ylittvlle nkymttmlle lasersteilylle. VARNING! Om apparaten anvnds 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 CAUT

14、ION Use of controls or adjustments or performance of proce- dures other than those specified herin 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 l

15、aserstling ved bning, nr sikkerhedsafbrydereer ude af funktion. Undg udsttelse for strling. This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior. Precaution to replace Optical block (KSS-213F, KMS-260B) Body or clothes ele

16、ctrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. 1) After the connection, remove solder shown in right figure. CD PICK-UP Assy P.W.B (KSS-213F) Solder MD PICK-UP Assy P.W.B (KMS-260B) 1VEE -TRK- L Pa

17、ttern Solder 4 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rated power (W)Parts number (C101, 102)resistor () 25-48100387-A00-247-090 49-140220587-A00-232-090 Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to che

18、ck 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 check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUT

19、ER 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 operating correctly. When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal vol

20、tage 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 triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”. Good or no good judgement of the

21、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 the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is ju

22、dged 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 supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is remov

23、ed. 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 work. Discharge procedure 11111Remove the AC power cord. 22222Connect a discharging resistor at an end of lead wire that has clip

24、s 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 two seconds) 44444Contact the same end of the discharging resistor as step 33333 to the negative (-) side (-VH) of C102 in the

25、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 referring to the following table.Fig-1 MAIN C.B D101 C101C102 22 34 5 In such a case, check also if the POWER AMPLIFIER circuit o

26、r 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 though the AC power cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed. When the abo

27、ve 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-reset by the following procedure and check good or no good of the MICROCOMPUTER. 11111Remove the AC power cord. 22222Short both en

28、ds 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 el

29、ectrolytic capacitor (C113) can change depending on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work. 2-3. Confirmation of soldering state of MICROCOMPUTER Check the soldering state of the MICROCOMPUTER in addition to the above described pr

30、ocedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself. Fig-2-2 MICRO- COMPUTER MICROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 * % C113 18 15 Short with tweezers. - 6 - DISASSEMBLY INSTRUCTIONS 1. Remove t

31、he four screws (A) (BVT 2+3-10 W/O SLOT). Remove the AZG-H in the direction of the arrow. 2. Remove the two screws (A) (S-SCREW, MDT), two screws (B) (S-SCREW, MD) and four screws (C) (VTT+3-4). Remove the four FFCs from the connector, and remove the MD MECHANISM in the direction of the arrow. AZG-H

32、 A A A A MD MECHANISM FFC FFC HLDR, SHIELD BOT B A C C C 3. Remove the HLDR, SHLD TOP in the direction of the arrow. HLDR, SHIELD TOP AZG-H B2 - 7 - 4. Remove the two screws (A) (VTT+2-4), and remove the PLATE ASSY, SIDE L and PLATE SIDE R in the direction of the arrow. Remove the screw (B) (VW+1.7-

33、5 W/O MFZN2C), and remove the HEAD and OWH RF325-74A in the direction of the arrow. 5. Open the ZZG-D in the direction of the arrow (a), remove the BOSS by pressing it gently in the direction of the arrow (b), and remove the ZZG-D in the direction of the arrow (c). HEAD, OWH RF325-74A PLATE ASSY, SL

34、IDE L PLATE, SLIDE R CAM, LOAD A A B a b b c BOSS ZZG-D - 8 - 6. Remove the CAM, LOAD in the direction of arrow. Note During Assembling: Rotate the gear fully in the direction of the arrow. Set up the mechanism so that the reference holes of CAM, LOAD are positioned closest to the shaft of LEVER, SW

35、 H. Let the CAM and LOAD engage with the teeth of GEAR, IDLER2. LEVER ASSY, CAM GEAR, IDLER2 CAM, LOAD The reference hole of CAM, LOAD The shaft of LEVER, SW H 9 ELECTRICAL MAIN PARTS LIST DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. IC 8A-DBA-630-010 C-IC,LC876572V-5R9

36、0 87-A21-482-010 IC,RPM6938-H4 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A21-443-040 C-IC,M62495AFP 87-A21-560-010 IC,LA1844L-A 87-A20-440-040 C-IC,BU1920FS 87-070-127-110 IC,LC72131 D TRANSISTOR 87-026-609-080 TR,KTA1266GR 89-213-702-010 TR,2SB1370E 87-026-610-080 TR,KTC3198GR 87-A30-076-080 C-TR,2SC30

37、52F 87-A30-075-080 C-TR,2SA1235F 87-A30-107-070 C-TR,CMBT5401 87-A30-484-080 C-TR,KRA102S 87-A30-190-080 TR,CC5551 87-A30-209-010 TR,2SD1889 87-A30-208-010 TR,2SB1340 87-A30-490-080 C-TR,KRC107S 87-A30-106-040 C-TR,CMBT5551 87-A30-087-080 C-FET,2SK2158 87-A30-091-080 FET,2SJ460 87-A30-090-080 FET,2S

38、K2541 87-A30-062-080 C-TR,KRC104S 87-A30-318-080 TR,CSA952K 87-A30-086-040 C-TR,CSD1306E 89-333-317-880 TR,2SC3331 (T/U) 87-A30-234-080 TR,CSC4115BC 89-327-143-080 C-TR,2SC2714O 87-A30-489-080 C-TR,KRA107S 89-503-602-080 C-FET,2SK360E DIODE 87-020-465-080 DIODE,1SS133 (110MA) 87-A40-393-090 DIODE,1N

39、5402GW(F20) 87-A40-553-080 DIODE,1N4003 LES 87-A40-777-080 ZENER,UZ30BSB 87-A40-764-080 ZENER,UZ10BSC 87-A40-270-080 C-DIODE,MC2838 87-A40-748-080 ZENER,UZ5.6BSA 87-A40-739-080 ZENER,UZ2.7BSA 87-017-149-080 ZENER,HZS6A2L MAIN C.B C9 87-010-196-080 CHIP CAPACITOR,0.1-25 C10 87-010-196-080 CHIP CAPACI

40、TOR,0.1-25 C11 87-010-196-080 CHIP CAPACITOR,0.1-25 C12 87-010-196-080 CHIP CAPACITOR,0.1-25 C21 87-A10-520-000 CAP,E 3300-35 M SMG C25 87-010-408-080 CAP, ELECT 47-50V C26 87-010-408-080 CAP, ELECT 47-50V C30 87-010-393-080 CAP, ELECT 100-35V C31 87-010-263-080 CAP, ELECT 100-10V C32 87-010-197-080

41、 CAP, CHIP 0.01 DM C34 87-010-260-080 CAP, ELECT 47-25V C35 87-010-406-080 CAP, ELECT 22-50 C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-190-080 S CHIP F 0.01 C50 87-010-393-080 CAP, ELECT 100-35V C60 87-010-403-080 CAP, ELECT 3.3-50V C61 87-010-260-080 CAP, ELECT 47-25V C72 87-016-051-000 CAP,E

42、 2200-35 M SMG C101 87-010-189-080 C-CAP,S 8200P-50 B C102 87-010-189-080 C-CAP,S 8200P-50 B C103 87-010-545-080 CAP, ELECT 0.22-50V C104 87-010-545-080 CAP, ELECT 0.22-50V C105 87-010-186-080 CAP,CHIP 4700P C106 87-010-186-080 CAP,CHIP 4700P C107 87-010-403-080 CAP, ELECT 3.3-50V C108 87-010-403-08

43、0 CAP, ELECT 3.3-50V C109 87-012-156-080 C-CAP,S 220P-50 CH C110 87-012-156-080 C-CAP,S 220P-50 CH C111 87-010-260-080 CAP, ELECT 47-25V C112 87-010-260-080 CAP, ELECT 47-25V C113 87-A10-946-080 C-CAP,S 220P-100 CH C114 87-A10-946-080 C-CAP,S 220P-100 CH C119 87-010-197-080 CAP, CHIP 0.01 DM C120 87

44、-010-197-080 CAP, CHIP 0.01 DM C123 87-010-184-080 C-CAP,S 3300P-50 K B C2012 C124 87-010-184-080 C-CAP,S 3300P-50 K B C2012 C125 87-010-196-080 CHIP CAPACITOR,0.1-25 C126 87-010-196-080 CHIP CAPACITOR,0.1-25 C127 87-010-196-080 CHIP CAPACITOR,0.1-25 C128 87-010-196-080 CHIP CAPACITOR,0.1-25 C129 87

45、-010-190-080 C-CAP,S 0.01-50 Z F C2012 C130 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 C133 87-010-186-080 CAP,CHIP 4700P C140 87-010-182-080 C-CAP,S 2200P-50 B C301 87-010-179-080 CAP,CHIP S B1200P C302 87-010-179-080 CAP,CHIP S B1200P C303 87-010-178-080 C-CAP,S 1000P-50 K B C2012 C304 87-010-178-08

46、0 C-CAP,S 1000P-50 K B C2012 C307 87-010-263-080 CAP, ELECT 100-10V C308 87-010-263-080 CAP, ELECT 100-10V C309 87-010-318-080 C-CAP,S 47P-50 CH C310 87-010-318-080 C-CAP,S 47P-50 CH C311 87-010-598-080 CHIP-CAP,S 0.068-16 C312 87-010-598-080 CHIP-CAP,S 0.068-16 C313 87-010-188-080 C-CAP,S 6800P-50

47、B C314 87-010-188-080 C-CAP,S 6800P-50 B C315 87-010-263-080 CAP, ELECT 100-10V C317 87-010-546-080 CAP, ELECT 0.33-50V C318 87-010-546-080 CAP, ELECT 0.33-50V C320 87-010-196-080 CHIP CAPACITOR,0.1-25 C321 87-010-196-080 CHIP CAPACITOR,0.1-25 C325 87-010-196-080 CHIP CAPACITOR,0.1-25 C326 87-010-19

48、6-080 C-CAP,S 0.1-25 C327 87-010-196-080 CHIP CAPACITOR,0.1-25 C360 87-010-401-080 CAP, ELECT 1-50V C365 87-010-196-080 CHIP CAPACITOR,0.1-25 C399 87-012-140-080 CAP 470P C401 87-010-544-080 CAP, ELECT 0.1-50V C402 87-010-544-080 CAP, ELECT 0.1-50V C403 87-010-321-080 CHIP CAPACITOR,82P(J) C404 87-010-321-080 CHIP CAPACITOR,82P(J) C405 87-010-197-080 CAP, CHIP 0.01 DM C406 87-010-197-080