Aiwa-NSXR11-cs-sm 电路图 维修手册.pdf

《Aiwa-NSXR11-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Aiwa-NSXR11-cs-sm 电路图 维修手册.pdf（52页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL DATA CD STEREO SYSTEM NSX-R11 S/M Code No. 09-024-455-6R1 REVISION EZ(S) BASIC CD MECHANISM : BZG-2 ZD9GNC1 BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS This Service Manual is the Revision Publishing and replaces Simple Manual (S/M Code No. 09-023-455-6T1). If requiring information about t

2、he CD mechanism, see Service Manual of BZG-2, (S/M Code No. 09-023-353-2N8). NSXR11 SPEAKERSYSTEM CD CASSEIVER SXNR10CXNR11 REMOTE CONTROLLER RCCAS03(VS) RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONS.3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING .4 NOTE ON BEFORE STARTING REPAIR .5, 6 ELECTRICAL

3、PARTS LIST (CX NR11).7 19 CHIP RESISTOR PART CODE .20 TRANSISTOR ILLUSTRATION.21 WIRING 1 (MAIN / HP) .22 SCHEMATIC DIAGRAM 1 (MAIN 1 / 2).23 SCHEMATIC DIAGRAM 2 (MAIN 2 / 2).24 SCHEMATIC DIAGRAM 3 (HP) .25 WIRING 2 (FRONT) .26 SCHEMATIC DIAGRAM 4 (FRONT / DECK) .27 WIRING 3 (PT) .28 SCHEMATIC DIAGR

4、AM 5 (PT) . .29 WIRING 4 (DECK) .30 IC BLOCK DIAGRAM .31 FL (HUA 13SS09T) GRID ASSIGNMENT / PIN CONNECTION / ANODE CONNECTION .32 IC DESCRIPTION .33, 34 ADJUSTMENT (TUNER / DECK / FRONT).35 41 CD TEST MODE .42 MECHANICAL EXPLODED VIEW. 43 MECHANICAL PARTS LIST. 44 COLOR NAME TABLE .45 TAPE MECHANISM

5、 EXPLODED VIEW . 46 TAPE MECHANISM PARTS LIST .47 GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) .48 SPEAKER PARTS LIST (SX NR10) .49 ACCESSORIES / PARTS LIST .50 OTHER PARTS LIST (CX NR11) .51 TABLE OF CONTENTS RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS MAIN UNIT CX-NR11 TUNER FM tuning ran

6、ge87.5 MHz to 108 MHz FM usable sensitivity (IHF)16.8 dBf FM antenna terminals75 ohms (unbalanced) MW tuning range531 kHz to 1602 kHz (9 kHz step) 530 kHz to 1710 kHz (10 kHz step) MW usable sensitivity350 V/m LW tuning range144 kHz to 290 kHz LW usable sensitivity1400 uV/m MW/LW antennaLoop antenna

7、 AMPLIFIER Power outputRated: 8 W + 8 W (6 ohms, T.H.D. 1 %, 1 kHz/DIN 45500) Reference: 10 W + 10 W (6 ohms, T.H.D. 10 %, 1 kHz/DIN 45324) DIN MUSIC POWER: 26 W + 26 W Total harmonic distortion0.08 % (6 W, 1 kHz, 6 ohm, DIN AUDIO) InputVIDEO / AUX: 500mV OutputsSPEAKERS: 6 ohms or more PHONES: 32 o

8、hms or more CASSETTE DECK Track format4 tracks, 2 channels stereo Frequency response50 Hz - 15 kHz Recording systemAC bias HeadsDECK 1: playback x 1 DECK 2: recording / playback x 1, erase x 1 CD PLAYER LaserSemiconductor laser ( = 780 nm) D/A converter1 bit dual Signal - to - noise ratio85 dB (1 kH

9、z, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) GENERAL Power requirements230 V AC, 50 Hz Power consumption42 W Dimensions (W x H x D)260 x 324 x 315 mm Weight4.7 kg FRONT SPEKERS SX NR10 Speaker system1 way, bass reflex (magnetic shielded) Speakers unitsFull range : 100 mm cone Impedance6 ohms Dim

10、ensions (W x H x D)210 x 324 x 202 mm Weight2.8 kg Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 4 This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT W

11、ITH 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 OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. Caution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam. Adva

12、rsel: 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 anvnds p ann

13、at 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 herin may

14、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. This Compac

15、t Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior. CLASS 1LASER PRODUCT KLASSE 1LASER PRODUKT LUOKAN 1LASER LAITE KLASS 1LASER APPARAT Precaution to replace Optical block (BZG-6 YANC) (PXR-104X-BP-0101) Body or clothes electrostat

16、ic 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 PWB Solder 5 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rate

17、d 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 check the reference numbers of the charging capacitors on schematic diagram before st

18、arting 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 MICROCOMPUTER is surely defective. 2-1. Regarding the HOLD terminal of the MICROCOMPUTER When

19、 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 HOLD terminal before exchange. When the MICROCOMPUTER is not defective

20、, 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 MICROCOMPUTER 11111Turn on the AC main power. 22222Confirm that the main power is

21、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 judged to be good. 1. Forced discharge of electrolytic capacitor of power supply blo

22、ck 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 removed. If repair is attempted in this condition, secondary defect can occur. In order

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

24、act 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 same way. (For two seconds) 55555Check that voltage across C101 and C102 has decre

25、ased 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 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 ar

26、e 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 above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMP

27、UTER 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 ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTE

28、R 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 to check t

29、he 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 procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the t

30、rouble 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. != ! SAFTY PARTS C= Components marked All components used on this model at the production line are shown in this service man

31、ual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales

32、service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX carrier at 999 kHz with 30% modulation, and source at 1 kHz, position output at maximum. (2) Adjust the unit to MW 999 kHz. (3) While monitoring the 1 kHz waveform through oscilloscope, decre

33、ase the S.S.G. output level (till slight noises appear in the waveform). (4) Adjust L802 so that the millivoltmeter indicates maximum. 6.Tracking Adjustment (MW) Requirements: Same as Item 5. * Adjustment point: L952 / L953 (1) Adjust the S.S.G. setting to AM; carrier at 999 kHz with 30% modulation,

34、 and source at 1 kHz, position output at maximum. (2) Adjust the unit to MW 999 kHz. (3) While monitoring the 1 kHz waveform through oscilloscope, decrease the S.S.G. output level (till slight noises appear in the waveform.) (4) Adjust L952 so that the millivoltmeter indicates maximum. (5) Adjust th

35、e S.S.G setting to AM; carrier at 603 kHz; distortion rate at 30 %, and source at 1 kHz. (6) Adjust the unit to MW 603 kHz. (7) Adjust L953 so that the millivoltmeter indicates maximum. (8) Repeat above steps (1) to (7) two to three times. 7.Tracking Adjustment (LW) Requirements: Same as Item 5. * A

36、djustment point: TC942 / L941 (1) Adjust TC942 to the mechanical center. (2) Adjust the S.S.G. setting to AM; carrier at 144 kHz with 30% modulation, and source at 1 kHz, position output at maximum. (3) Adjust the unit to LW 144 kHz. (4) While monitoring 1 kHz waveform through oscilloscope, decrease

37、 the S.S.G. output level (till slight noises appear in the waveform). (5) Adjust L941 so that the millivoltmeter indicates the maximum level. (6) Adjust the S.S.G setting to AM; carrier at 290 kHz; distortion rate at 30 %, and source at 1 kHz. (7) Adjust the unit to LW 290 kHz. (8) Adjust TC942 so that the millivoltmeter indicates the maximum level. (9) Repeat the above steps (2) to (8) two to three times. Standard Signal Generator 38 8. Auto-Stop Function Check (MW) Requirements: Same as