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Aiwa AM-LM918, Руководство по обслуживанию, Страница: 2 / 36

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<MD recorder section>
Scanning method

Non-contact optical scanner
(Semiconductor laser application)

Recording system

Magnetic polarity modulation
overwrite system

Rotation speed

Approx. 400 to 900 rpm (CLV)

Sampling frequency

44.1 kHz

No. of channels

Stereo: 2 channels
Monaural: 1 channel

A/D, D/A converter

1-bit

Frequency

20 to 20000 Hz

Wow and flutter

Unmeasurable

<Input>
AUX DIGITAL IN

Sampling frequency: 48 kHz / 44.1 kHz / 32 kHz
Optical input level: more than -21 dBm

CD DIGITAL IN

<General>
Dimensions (W x H x D)

210 x 82.5 x 243 mm

Weight

1.3 kg

SPECIFICATIONS

• Design and specifications are subject to change without  notice.

ACCESSORIES / PACKAGE  LIST

DESCRIPTION

REF. NO.

KANRI
NO.

PART NO.

       1  87-B30-024-010    CABLE,OPTICAL MC-901 1M

Содержание AM-LM918

Страница 1: ...AM LM918 Y S M Code No 09 016 446 9R1 R E V I S I O N 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 of AZG W YAF S M Code No 09 015 355 9N2 ...

Страница 2: ...nnels Monaural 1 channel A D D A converter 1 bit Frequency 20 to 20000 Hz Wow and flutter Unmeasurable Input AUX DIGITAL IN Sampling frequency 48 kHz 44 1 kHz 32 kHz Optical input level more than 21 dBm CD DIGITAL IN General Dimensions W x H x D 210 x 82 5 x 243 mm Weight 1 3 kg SPECIFICATIONS Design and specifications are subject to change without notice ACCESSORIES PACKAGE LIST DESCRIPTION REF N...

Страница 3: ... osynling laserstrålning som överskrider gränsen för laserklass 1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING Precaution to replace Optical block KMS 260E 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 1 After the connection remove solder shown in right figure CLASS 1 LASE...

Страница 4: ...Part Coding Figure Value of resistor Chip resistor Wattage Type Tolerance 1 16W 1 10W 1 8W 1608 2125 3216 5 5 5 CJ CJ CJ Form L W t 1 6 0 8 0 45 2 1 25 0 45 3 2 1 6 108 118 128 A A CHIP RESISTOR PART CODE 0 55 Resistor Code Dimensions mm Symbol 1 16W 1005 5 CJ 1 0 0 5 0 35 104 L t W FRONT 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 ...

Страница 5: ... 5 TRANSISTOR ILLUSTRATION E B C 2SC3326B DTA114EKA KRA102S KRC107S S G D 2SK2158 ...

Страница 6: ...WIRING MAIN FRONT LED L LED R 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 6 A B C D E F G H I J K L M N O P Q R S T U ...

Страница 7: ... 7 SCHEMATIC DIAGRAM MAIN FRONT LED L LED R ...

Страница 8: ...g 2 MD Test Mode and Audio Output Check 1 After activating test mode the display will be as shown in the diagram below indicating that test mode can be used 2 Audio Output Check The signal of 1kHz 17dB 140mV 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 Mode 1 Press the MD EJECT button and take out the DISC...

Страница 9: ... the display Cautions 1 When a pre mastered disc such as test disc TGYS 1 or soft disc is inserted do not press DOWN for OWH 2 When unloading do not press the CD MD SYNCHRO REC NORMAL button Damage may be occurred 7 2 Detection Switch Check REFLECT SW REC PROTECT SW INSIDE LIMIT SW Disc Mode PIT MO selections will be shown on the display JAZZ is lit INSIDE LIMIT SW is turned on PICK UP is in inner...

Страница 10: ...T MO DISC Display shows SELECT GRV 3 Press the PLAY button During normal focus search the display shows FOCUS SRCH followed by FOCUS ON which indicates that focus search is turned on 4 In FOCUS ON press the DISPLAY button on tuner section to show S ERR on the display This mode can check on DC offset of EF balance S ERR Sled Error EF balance DC offset It is normal if it changes in a range of 70 89 ...

Страница 11: ...recording playback error 10 How to Erase U TOC User TOC Make the DISC that appears on display from U TOC ERROR to BLANK DISC 1 Insert the MO DISC 2 Press the MD MODE button to change the display to SELECT GRV 3 Move the PICK UP to the centre position of the DISC with B SKIP or F SKIP button 4 Press the PLAY button to change the display to FOCUS ON 5 Press the ENTER button on the AMP section to cha...

Страница 12: ...aminated for the adjustment The adjustment may not be able to be performed if the DISC is scratched or contaminated During adjustment do not reverse the MD mechanism or place it in a slanting position Adjustment Procedure All the adjustment procedures are listed in the flow chart below Follow 1 to 7 of the flow chart for the adjustment procedure Adjustment Procedure START 1 Activate TEST MODE 2 EE...

Страница 13: ...T 1 Activate TEST MODE Press and hold the PLAY button on the MD section and insert the AC plug into the outlet 2 EEPROM Initialisation OPEN CLOSE the CD section STOP To next step Adjustment Procedure Flow Chart ...

Страница 14: ...at board temperature and room temperature are the same Using the temperature indicator Degree Celsius compare the surrounding temperature of the MD mechanism measured on the display with the temperature indicator temperature indicator displays 3 degree celsius display temperature of this unit ENTER of AMP section STOP To next step B SKIP K SKIP ...

Страница 15: ...e Power Check Measure with the Laser Power Meter Check Laser Output is approximately 6 80mW STOP To next step 4 Laser Power Check Read Power Check MD EDIT REC PAUSE Read Power Setup Value Check Check that LASER OF is displayed ENTER on AMP section Read Power Check Measure with the Laser Power Meter Check Laser Output is approximately 0 68mW ...

Страница 16: ...ECT Take out the DISC To next step 5 AUTO SEQUENCE ADJ MO DISC Adjustment MDW 74 or similar product Loading MD MODE AUTO MARK is lit Remote Controller MD function This display indicates that the adjustment cannot be performed IVR Value Check 04 0A Hexadecimal EF Balance Value Check 09 15 Hexadecimal Focus Gain Value Check 1A 50 Hexadecimal Tracking Gain Value Check 0C 30 Hexadecimal Sled Gain Valu...

Страница 17: ...ment Value Check STOP Press DISPLAY on TUNER section twice Adjustment Value Check IVR EF balance DISPLAY on TUNER section Adjustment Value Check Focus Tracking Sled Gain STOP MD EJECT Take out the DISC To next step EF Balance Value Check 09 15 Hexadecimal Sled Gain Value Check 0C 3F Hexadecimal IVR Value Check 14 19 Hexadecimal Focus Gain Value Check 1A 50 Hexadecimal Tracking Gain Value Check 0C ...

Страница 18: ...k Error Check Below 0030 STOP MD EJECT Take out the DISC To next step 6 Error Rate Check Playback Error Rate Check TGYS 1 or TDYS 1 Loading MD MODE TIME MARK is lit B SKIP F SKIP PICK UP moves to the centre position of DISC Remote Controller AUX function ...

Страница 19: ...PICK UP moves to the centre position of DISC PLAY on CD section Address display Automatically begins recording from 600C Records for approximately 15 30 seconds STOP Remote Controller AUX function DISPLAY on TUNER section once 600C is exceeded Record Error Check Below 0030 STOP MD EJECT Take out the DISC To next step ...

Страница 20: ... 20 7 After Adjustment Check Press POWER twice and check that NO ADJUST is not displayed when the power is switched on END ...

Страница 21: ... 21 MECHANICAL EXPLODED VIEW 1 1 CHAS MAIN AZG W YAF WIRE ASSY PWB PWB PWB PWB A A A B C B C C C C D C C E E E 3 19 6 20 8 9 7 4 5 21 22 23 18 17 18 14 13 11 12 1 16 2 15 F F E 10 a a ...

Страница 22: ...BI FR MD 4 8B CC1 201 010 GUIDE MD 5 88 CE2 209 010 SPR T MD 6 8B CE1 018 010 REFLECTOR FR 7 8Z CE3 204 010 GUIDE LED R 8 8B CE1 208 010 GUIDE LED CNT 9 8Z CE3 203 010 GUIDE LED L 10 8B CF1 011 010 PANEL TOP 11 8B CC1 202 010 HLDR MECHA MD 12 8B CF1 005 010 PANEL SIDE L 13 8Z CC3 608 010 FF CABLE 8P 1 0 100MM 14 8Z CC3 607 010 FF CABLE 14P 1 0 100MM 15 8B CF1 205 010 PLATE TOP 16 8B CC1 003 010 PA...

Страница 23: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 9301978 2000041 921338 ...

Страница 24: ...SERVICE MANUAL DATA AM LM918 Y SIMPLE S M Code No 09 015 446 9T1 Replace this Service manual with Revision Publishing when it is issued MINI DISC RECORDER BASIC MD MECHANISM AZG W YAF ...

Страница 25: ...T Q 0901 87 A30 087 080 0E C FET 2SK2158 YSM AM LM918 S D INPUT Q 0902 87 A30 087 080 0E C FET 2SK2158 YSM AM LM918 S D INPUT Q 0903 87 A30 484 080 0E C TR KRA102S YSM AM LM918 S D INPUT Q 0904 87 A30 490 080 0E C TR KRC107S YSM AM LM918 S D INPUT Q 0905 87 A30 490 080 0E C TR KRC107S YSM AM LM918 S D INPUT Q 0906 87 A30 484 080 0E C TR KRA102S YSM AM LM918 X D INPUT R 0901 88 118 100 080 0E C RES...

Страница 26: ...K 1 16W J YSM AM LM918 X OTHERS R 0926 88 108 103 080 0E C RES U 10K 1 16W J YSM AM LM918 X OTHERS R 0927 88 108 103 080 0E C RES U 10K 1 16W J YSM AM LM918 X OTHERS R 0932 88 108 332 080 0E C RES U 3 3K 1 16W J YSM AM LM918 X OTHERS R 0933 88 108 332 080 0E C RES U 3 3K 1 16W J YSM AM LM918 O OTHERS S 0901 87 A90 696 080 0E SW TACT TS2103 03 430 YSM AM LM918 O OTHERS S 0902 87 A90 696 080 0E SW T...

Страница 27: ... 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 service and will not be stocked at the spare parts centers K NO Only use japanese C UNIT NAME REF NO MODEL NAME DESCRIPTION K NO PARTS CODE SUFFIX O SCREW 87 B10 294 010 0E BVT2 2 6 8 YSM AM LM9...

Страница 28: ... C COIL BU05MC08T YAF AZG W O AUDIO L 0505 87 A50 718 080 1A C COIL BU05MC08T YAF AZG W X AUDIO R 0501 88 108 474 080 0E C RES U 470K 1 16W J YAF AZG W X AUDIO R 0502 88 108 474 080 0E C RES U 470K 1 16W J YAF AZG W X AUDIO R 0503 88 108 103 080 0E C RES U 10K 1 16W J YAF AZG W X AUDIO R 0504 88 108 103 080 0E C RES U 10K 1 16W J YAF AZG W X AUDIO R 0505 88 108 333 080 0E C RES U 33K 1 16W J YAF A...

Страница 29: ...080 0E C CAP U 0 01 25 K B YAF AZG W O MD C 0124 87 010 662 080 0E C CAP E 22 6 3 M MV YAF AZG W O MD C 0125 87 010 662 080 0E C CAP E 22 6 3 M MV YAF AZG W O MD C 0201 87 010 831 080 0E C CAP U 0 1 16 Z F YAF AZG W O MD C 0202 87 010 831 080 0E C CAP U 0 1 16 Z F YAF AZG W O MD C 0203 87 010 785 080 0E C CAP U 0 015 25 K B GRM YAF AZG W O MD C 0204 87 016 461 080 0E C CAP S 0 47 16 Z F YAF AZG W ...

Страница 30: ...AP U 1000P 50 K B YAF AZG W O MD C 0532 87 012 274 080 0E C CAP U 1000P 50 K B YAF AZG W O MD C 0609 87 012 274 080 0E C CAP U 1000P 50 K B YAF AZG W O MD C 0612 87 012 274 080 0E C CAP U 1000P 50 K B YAF AZG W S MD CN 0100 87 A61 347 080 1A C CONN 21P H XF2H 2115 1 YAF AZG W O MD CN 0300 87 A60 518 080 0E C CONN 8P H 6232 YAF AZG W O MD CN 0600 87 A60 519 080 1A C CONN 14P H 6232 YAF AZG W S MD D...

Страница 31: ... 080 0E C RES U 10K 1 16W J YAF AZG W X MD R 0209 88 108 101 080 0E C RES U 100 1 16W J YAF AZG W X MD R 0210 88 108 101 080 0E C RES U 100 1 16W J YAF AZG W X MD R 0211 88 108 101 080 0E C RES U 100 1 16W J YAF AZG W X MD R 0212 88 108 101 080 0E C RES U 100 1 16W J YAF AZG W X MD R 0213 88 108 101 080 0E C RES U 100 1 16W J YAF AZG W X MD R 0215 88 108 331 080 0E C RES U 330 1 16W J YAF AZG W X ...

Страница 32: ... AZG W X MD R 0401 88 108 472 080 0E C RES U 4 7K 1 16W J YAF AZG W X MD R 0403 88 108 223 080 0E C RES U 22K 1 16W J YAF AZG W X MD R 0404 88 108 223 080 0E C RES U 22K 1 16W J YAF AZG W X MD R 0407 88 108 333 080 0E C RES U 33K 1 16W J YAF AZG W X MD R 0408 88 108 333 080 0E C RES U 33K 1 16W J YAF AZG W X MD R 0409 88 108 123 080 0E C RES U 12K 1 16W J YAF AZG W X MD R 0410 88 108 123 080 0E C ...

Страница 33: ...e and will not be stocked at the spare parts centers K NO Only use japanese C UNIT NAME REF NO MODEL NAME DESCRIPTION K NO PARTS CODE SUFFIX X PACKING DU 8A ZGW 855 010 CUSHION BOT AZG W F YAF AZG W X PACKING DU 8A ZGW 856 010 1H CTN OUTER AZG W F YAF AZG W X PLATE 87 056 081 010 0E LBL SERIAL NO YAF AZG W X PLATE 87 057 917 010 1A LBL CAUTION YAF AZG W X PWB 8A ZGW 610 010 1H PWB MAIN 2M AZG W YA...

Страница 34: ...SCHEMATIC DIAGRAM 1 MAIN ...

Страница 35: ...SCHEMATIC DIAGRAM 2 MD AZG W YAF ...

Страница 36: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 9301978 ...

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