Aiwa-XH-N5-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO SYSTEM BASIC TAPE MECHANISM : 6ZM-1 AR3NM BASIC CD MECHANISM : AZG-1 ZD8RNDM XH-N5LH S/M Code No. 09-003-424-7R1 REVISION This Service Manual is the Revision Publishing and replaces Simple Manual, (S/M Code No. 09-99C-424-7T1). If requiring information about t

2、he CD mechanism, see Service Manual of AZG-1, (S/M Code No. 09-001-335-3N6). XH-N5 SPEAKER SYSTEM CD CASSEIVER REMOTE CONTROLLER CX-AN5SX-WAN5 RC-AAS02 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 BEFORE STARTING REPAIR

3、.5 6 DISASSEMBLY INSTRUCTIONS.7 8 ELECTRICAL MAIN PARTS LIST .9 13 CHIP RESISTOR PART CODE .14 TRANSISTOR ILLUSTRATION .14 FL (BJ741GK) GRID ASSIGNMENT / ANODE CONNECTION .15 16 WIRING 1 (MAIN) .17 SCHEMATIC DIAGRAM 1 (MAIN 1 / 2 : FUNCTION / DSP / ECHO / CONNECT1 / 3).18 SCHEMATIC DIAGRAM 2 (MAIN 2

4、 / 2 : DECK).19 WIRING 2 (FRONT / CONNECT) .20 SCHEMATIC DIAGRAM 3 (FRONT / CONNECT2 / 3 / DECK / DECK MOTOR) .21 WIRING 3 (OPERATE / KEY / MIC / LEDA D) .22 SCHEMATIC DIAGRAM 4 (OPERATE / KEY / MIC / LEDA D).23 WIRING 4 (AMP).24 SCHEMATIC DIAGRAM 5 (AMP) .25 WIRING 5 (VIDEO I/O / VIDEO JACK / VIDEO

5、3).26 SCHEMATIC DIAGRAM 6 (VIDEO I/O / VIDEO JACK / VIDEO3 / CONNECT3 / 3) .27 WIRING 6 (TUNER) .28 SCHEMATIC DIAGRAM 7 (TUNER) .29 WIRING 7 (PT).30 SCHEMATIC DIAGRAM 8 (PT) .31 WIRING 8 (DECK / DECK MOTOR / HEAD) .32 IC BLOCK DIAGRAM.33 38 IC DESCRIPTION .39 40 ADJUSTMENT .41 43 MECHANICAL EXPLODED

6、 VIEW 1 / 1.44 MECHANICAL PARTS LIST 1 / 1 .45 TAPE MECHANISM EXPLODED VIEW 1 / 2 .46 TAPE MECHANISM PARTS LIST 1 / 2 .47 TAPE MECHANISM EXPLODED VIEW 2 / 2 .48 TAPE MECHANISM PARTS LIST 2 / 2 .49 SPEAKER DISASSEMBLY INSTRUCTIONS.50 SPEAKER PARTS LIST.51 ACCESSORIES / PACKAGE LIST .52 RadioFans.CN 收

7、音机爱 好者资料库 3 Tuning range87.5 MHz to 108 MHz Usable sensitivity (IHF)13.2 dBf Antenna 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 Mid-high frequency amplifier Power output FrontRated : 60 W

8、+ 60 W (8 ohms, T.H.D. 1 %, 1 kHz) Reference : 80 W + 80 W (8 ohms, T.H.D. 10 %, 1 kHz) Total harmonic distortion0.15 % (40W, 1 kHz, 8 ohms, DIN AUDIO/Front) Low frequency amplifier Power outputRated : 200 W + 200 W (6 ohms, T.H.D. 1 %, 80 Hz) Reference : 240 W + 240 W (6 ohms, T.H.D. 10 %, 80 Hz) T

9、otal harmonic distortion0.15 % (100W, 80 Hz, 6 ohms, DIN AUDIO/Front) InputsAUX: 310 mV PHONO: 400 mV VIDEO1, VIDEO2, VIDEO3: 310mV MIC 1, MIC 2: 1.5mV (20 K ohms) OutputsCD DIGITAL OUT (OPTICAL) SPEAKERS: LOW: 6 ohms HIGH: 8 ohms SURROUND SPEAKERS: accept speakers of 8 - 16 ohms PHONES (stereo jack

10、): accepts headphones of 32 ohms or more SPECIFICATIONS Track format4 tracks, 2 channels stereo Frequency response50 Hz 15000 Hz Recording systemAC bias HeadsDeck 1 : Playback head x 1 Deck 2 : Recording / Playback head x 1, erase head x 1 LaserSemiconductor laser ( = 780 nm) D-A converter1 bit dual

11、 Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.03 % (1 kHz, 0 dB) Power requirements120V/220 230V/240V AC switchable, 50/60 Hz Power consumption260 W Dimensions of main unit360 x 372 x 423 mm (W x H x D) Weight of main unit15.5 kg Speaker system SX-WAN5 Cabinet type3 way, built-in su

12、bwoofer Speaker unitsSubwoofer : 220 mm cone type Woofer : 120 mm cone type Tweeter: 60 mm cone type Impedance6 ohms / 8 ohms Output sound pressurelevel86 dB/W/m Dimensions250 x 535 x 298 mm (W x H x D) Weight7.5 kg Design and specifications are subject to change without notice. The word BBEand the

13、BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc. Main unit CX-AN5 RadioFans.CN 收音机爱 好者资料库 4 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING VAROITUS! Laiteen Kyttminen muulla kuin tss kyttohjeessa mainit- ulla tavalla saattaa altistaa kyt-tjn turvallisuusluokan 1 yl

14、it- tvlle 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. Caution: Invisible laser radiation when open and interlocks defeated avoid expo- sure to

15、 beam. Advarsel:Usynling laserstling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. ATTENTION Lutilisation de commandes

16、, 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. This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER P

17、RODUCT label is located on the rear exterior. This set employs laser. Therefore, be sure to follow carefully 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 OBS

18、ERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. CLASS 1 KLASSE 1 LUOKAN 1 KLASS 1 LASER PRODUCT LASER PRODUKT LASER LAITE LASER APPARAT Precaution to replace Optical block (KSM-880CAB) 1) After the connection, remove solder shown in the rig

19、ht figure. 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 touch the diode. solder PICK-UP Assy P.C.B 5 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rated power (W)Parts number (

20、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 check the reference numbers of the charging capacitors on schematic diagram before starting the discharging wo

21、rk. 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 MICROCOMPUTER is surely defective. 2-1. Regarding the HOLD terminal of the MICROCOMPUTER When the HOLD terminal (INPUT

22、) 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 HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can a

23、lso 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 MICROCOMPUTER 11111Turn on the AC main power. 22222Confirm that the main power is turned on and the HOLD te

24、rminal 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 judged to be good. 1. Forced discharge of electrolytic capacitor of power supply block When repair is going t

25、o 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 removed. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary

26、 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 clips at both ends. Connect the other end of the lead wire to metal chassis. 33333Contact the other end of the

27、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 same way. (For two seconds) 55555Check that voltage across C101 and C102 has decreased to 1 V or less using

28、 a multimeter or an oscilloscope. Select a discharging resistor referring 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

29、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 above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to

30、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 ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers. 33333Con

31、nect 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 to check the reference numbers on s

32、chematic 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 procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by p

33、oor 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. 7 DISASSEMBLY INSTRUCTIONS CD DISASSEMBLING PROCEDURE 3.Remove the 4 screws (Ex2, Fx2) from both sides. 1.Remove the 19 screws (Ax11, Bx8) and remove

34、 the CABI, STEEL. 2.Remove the 3 screws from the bottom of the unit. AA A A A A A A AAA B B B B B B CABI, STEEL B B E F E F 8 4.Remove the 20 screws (Cx18, Dx2) and remove the CABI, REAR ASSY. 5.Remove the 6 FFCs from the CONNECT C.B. 6.Remove the PANEL, REAR CD. 7.Remove the CHAS, 3CD together with

35、 the AZG-1. 8.Remove the 2 screws and remove the AZG-1 from the CHAS, 3CD. The AZG-1 can be repaired while the power is on by using the jig introduced in the Service Technical Information (SI-98-028). 1.Procedure Connect the jig as shown below. CD service position C C CC D C CCC C CABI, REAR ASSY C

36、C C D C C C C C C PANEL, REAR CD CHAS, 3CD CHAS, 3CD AZG-1 PWB, CONNECTCONNECT C.B 9 ELECTRICAL MAIN PARTS LIST DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. IC 8A-MT4-601-010 C-IC,LC866560W-5P68 87-017-888-080 IC,NJM4558MD 87-A20-914-010 IC,SPS-442-1-F 87-A21-021-040 C-

37、IC,BU2099FV 87-A21-398-010 IC,STK490-110 87-A20-783-040 C-IC,BA7762AFS 87-A21-023-040 C-IC,BA3835F 87-A21-022-040 C-IC,BA3880FS 87-A21-031-040 C-IC,BU4551BF 87-A21-202-040 C-IC,M62445AFP 87-A20-613-040 C-IC,BU9262AFS 87-A20-820-010 IC,BA7625 87-017-917-080 IC,BU4066BCF 87-017-726-080 IC,BU4052 BCF 87-017-915-080 IC,BU4094BCF 87-070-127-110 IC,LC72131D 87-A20-913-010 IC,LA1837NL 87-020-454-010 IC,DN6851 TRANSIST