Aiwa-AMLM918-md-ssm维修电路原理图.pdf
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1、SERVICE MANUALDATAMINI DISC RECORDERBASIC MD MECHANISM : AZG-W YAFAM-LM918YS/M Code No. 09-016-446-9R1REVISION This Service Manual is the “Revision Publishing” and replaces “Simple Manual”AM-LM918 (Y), (S/M Code No. 09-015-446-9T1). If requiring information about the MD mechanism, see Service Manual
2、 of AZG-W YAF, (S/M Code No. 09-015-355-9N2).RadioFans.CN 收音机爱 好者资料库 2 Scanning methodNon-contact optical scanner(Semiconductor laser application)Recording systemMagnetic polarity modulationoverwrite systemRotation speedApprox. 400 to 900 rpm (CLV)Sampling frequency44.1 kHzNo. of channelsStereo: 2 c
3、hannelsMonaural: 1 channelA/D, D/A converter1-bitFrequency20 to 20000 HzWow and flutterUnmeasurableAUX DIGITAL INSampling frequency: 48 kHz / 44.1 kHz / 32 kHzOptical input level: more than -21 dBmCD DIGITAL INDimensions (W x H x D)210 x 82.5 x 243 mmWeight1.3 kgSPECIFICATIONS Design and specificati
4、ons are subject to change without notice.ACCESSORIES / PACKAGE LISTDESCRIPTIONREF. NO.KANRINO.PART NO. 1 87-B30-024-010 CABLE,OPTICAL MC-901 1MRadioFans.CN 收音机爱 好者资料库 3 This set employs laser. Therefore, be sure to follow carefullythe instructions below when servicing.WARNING!WHEN SERVICING, DO NOT
5、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 OBJEC-TIVE LENS ON THE OPTICAL PICK-UP BLOCK.sCaution: Invisible laser radiation whenopen and interlocks defeated avoidex
6、posure 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 a
7、nvnds p annat stt n vad somspecificeras i denna bruksanvising, kan anvndarenutsttas fr osynling laserstrlning, som verskridergrnsen fr laserklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGPrecaution to replace Optical block(KMS-260E)Body or clothes electrostatic potential couldruin laser
8、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.CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATCAUTIONUse of controls or adjustments or performanc
9、e of proceduresother than those specified herin may result in hazardous radiationexposure.ATTENTIONLutillisation de commandes, rglages ou procdures autres queceux spcifis peut entraner une dangereuse exposition auxradiations.ADVARSELUsynlig laserstling ved bning, nr sikkerhedsafbrydereer udeaf funkt
10、ion. Undg udsttelse for strling.This Compact Disc player is classified as a CLASS 1 LASERproduct.The CLASS 1 LASER PRODUCT label is located on the rearexterior.MD PICK-UP Assy PWB1 VEE TRK Pattern sideSolder1-RadioFans.CN 收音机爱 好者资料库 4 ELECTRICAL MAIN PARTS LISTIC 87-A20-870-010 IC,GP1F37R 87-A21-175
11、-040 C-IC,TC74VHC14FTTRANSISTOR 87-A30-087-080 C-FET,2SK2158 87-A30-484-080 C-TR,KRA102S 87-A30-490-080 C-TR,KRC107S 87-A30-447-040 CHIP-TR,DTA114EKA 89-333-266-080 CHIP TR,2SC3326BMAIN C.B C901 87-010-759-080 C-CAP,U, 0.1-25F C902 87-A12-061-080 CAP,E 47-10 SMG C903 87-012-274-080 CHIP CAP,U 1000P-
12、50B C904 87-010-759-080 C-CAP,U, 0.1-25F C905 87-A12-061-080 CAP,E 47-10 SMG C906 87-012-274-080 CHIP CAP,U 1000P-50B C907 87-010-759-080 C-CAP,U, 0.1-25F C908 87-012-195-080 C-CAP,U 100P-50CH C911 87-A12-064-080 CAP,E 1000-10 SMG C913 87-012-197-080 C-CAP,U 150P-50 J CH C914 87-012-197-080 C-CAP,U
13、150P-50 J CH C915 87-010-757-080 C-CAP,U 0.047-25 Z F CN901 87-A61-580-010 CONN,18P V WHT 52328 CN902 87-A60-423-010 CONN,14P V TOC-B CN903 87-A60-422-010 CONN,8P V TOC-B CN904 87-A60-586-010 CONN,4P V FE FB909 87-A50-189-080 C-COIL,S BLM21B272S FC902 8Z-CC3-607-010 FF-CABLE,14P 1.0 100MM FC903 8Z-C
14、C3-608-010 FF-CABLE,8P 1.0 100MM JR902 87-005-840-080 C-COIL,S BLM21A108 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 CodeDime
15、nsions (mm)Symbol1/16W10055%CJ1.00.50.35104LtWFRONT C.B CN905 87-A60-586-010 CONN,4P V FE CNA908 88-805-020-640 CONN ASSY,2P 60MM CNA909 88-805-021-090 CONN ASSY,2P FC905 88-904-261-110 FF-CABLE,4P 1.25 260MM S901 87-A90-696-080 SW,TACT TS2103-03-430 S902 87-A90-696-080 SW,TACT TS2103-03-430 S903 87
16、-A90-696-080 SW,TACT TS2103-03-430 S904 87-A90-696-080 SW,TACT TS2103-03-430 S905 87-A90-696-080 SW,TACT TS2103-03-430 S906 87-A90-696-080 SW,TACT TS2103-03-430 S907 87-A90-696-080 SW,TACT TS2103-03-430 S908 87-A90-696-080 SW,TACT TS2103-03-430 S909 87-A90-696-080 SW,TACT TS2103-03-430 S910 87-A90-6
17、96-080 SW,TACT TS2103-03-430 S911 87-A90-696-080 SW,TACT TS2103-03-430 S912 87-A90-696-080 SW,TACT TS2103-03-430LED-L C.B C910 87-012-286-080 CAP, U 0.01-25 CN907 87-A60-619-010 CONN,2P V 2MM JMT D901 87-A40-640-010 LED,SELU1E10CXM BLUE-EFLED-R C.B C909 87-012-286-080 CAP, U 0.01-25 CN906 87-A60-619
18、-010 CONN,2P V 2MM JMT D902 87-A40-640-010 LED,SELU1E10CXM BLUE-EFDESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO.RadioFans.CN 收音机爱 好者资料库 5 TRANSISTOR ILLUSTRATIONEBC2SC3326BDTA114EKAKRA102SKRC107SSGD2SK2158RadioFans.CN 收音机爱 好者资料库WIRING (MAIN / FRONT / LED L / LED R)32313029282
19、72625242322212019181716151413121110987654321 6 ABCDEFGHIJKLMNOPQRSTURadioFans.CN 收音机爱 好者资料库 7 SCHEMATIC DIAGRAM (MAIN / FRONT / LED L / LED R)RadioFans.CN 收音机爱 好者资料库 8 MD TEST MODEThe following shows the contents of the test mode.1.How to Activate MD Test Mode2.MD Test Mode and Audio Output Check3.H
20、ow to Cancel MD Test Mode4.How to Change to Servo Standby Mode5.Sled Feed Operation Check6.Laser Power Check7.Loading Mechanism Operation and Detection Switch Check8.Servo Operation Check8-1 Focus Search/Spindle Kick Check 18-2 Focus Search/Spindle Kick Check 2 (S curve check)8-3 Focus Servo and Sle
21、d Error (EF Balance) Check8-4 All Servo On Check9.Address, Error Rate Check10. How to Erase U-TOC (User TOC)1. How to Activate MD Test ModeWhile pressing and holding the “PLAY” button on the MD section, insert the AC plug into the outlet.* Notes: 1) The button operation in test mode is basically per
22、formed at MD section but it can also be done at TUNER section, AMP section andCD section. The remote controller is also required for the adjustments.2) During test mode activation, perform the operation and any mechanical error is ignored. If an unusual error occurs in the operation,switch off the p
23、ower immediately.3) During test mode operation, normal recording/playback will not be working.2. MD Test Mode and Audio Output Check1) After activating test mode, the display will be as shown in the diagram below, indicating that test mode can be used.2) Audio Output CheckThe signal of 1kHz, 17dB (1
24、40mV) is the output from the MD mechanical output (D/A OUT).(It cannot output from the speaker output and headphone output.)3. How to Cancel MD Test Mode1) Press the “MD EJECT” button and take out the DISC.2) Remove the AC plug.* Note: If the MD test mode is cancelled without using the above steps,
25、the unit may not be able to operate properly when power is switched onagain. If this occurs, remove the AC plug.4. How to Change to Servo Standby ModeAfter activating the test mode, press the “STOP” button to change to Servo Standby mode.Various modes are able to switch from this mode (display shows
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