Panasonic JU-314 Скачать руководство пользователя страница 1 | Manualshive

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Содержание JU-314

Страница 1: ...ORDER NO MSD860605900 ervice Manual Flexible Disk Storage Drive 3 5 Inch JU 314 JU 324 JU 364 Panasonic...

Страница 2: ...t Modulation Verification 8 9 5 Radial Alignment Adjustment 8 9 9 6 Azimuth Verification 10 9 7 Index Burst Verification 10 9 8 Track 00 Sensor Adjustment 11 9 9 LimiterAdjustment 11 9 10 AsymmetryVer...

Страница 3: ...nstructions for all FDD Refer to the highlighted applicable items and perform maintenance work on the Floppy Disk Drive FDD 2 MODELS AND MODEL NUMBERS 2 1 3 5 inch FDD Series 3 SPECIAL TOOLS The follo...

Страница 4: ...ly caused by the following 1 Contamination between read write heads and diskette This kind of contamination can be easily eliminated by the liner in the diskette Contaminated heads can be cleaned by a...

Страница 5: ...move the head away from it And read it again 5 6 Interchangeability Error Data which is written by one drive may not be read by another This error is called a Interchange ability error which can be ca...

Страница 6: ...m permits Install Exerciser on FDD Power SW DC SW ON MOT SW ON Drive Select SW ON YES Media Defective Controller Defective Check Item 1 Table 6 1 Check Item 2 Table 6 1 Check Item 3 Table 6 1 4 Write...

Страница 7: ...ailure E 4 No seek 1 Ste er motor E 2 Guide shaft contamination or dama E 3 PCB ste er driver circuit E 5 No WRITE See Item 1 2 Head disconnected E 3 Head shorted E 4 PCB write circuit E 6 No READ See...

Страница 8: ...ake an azimuth measurement at a specified track Sides 0 1 CAUTION Do not write when using alignment diskette Check that write protect sensor is properly operating with a data diskette Note Section 9 d...

Страница 9: ...t hole open ON Media with write protect hole closed OFF 9 3 Head Output Verification Use a new diskette if possible to identify head failure for this check 1 Insert a good diskette 2 Run the motor 3 S...

Страница 10: ...table 3 1 1 Insert an alignment diskette CAUTION Be sure to leave the alignment diskette under room conditions for 20 minutes before adjustment 2 Step to the track specified in the Radial alignment c...

Страница 11: ...the above formulas should meet the specifications on item 3 of Table 8 1 7 If the above requirement is not met loosen the two mounting screws for the stepper motor adjust 8 Seek from track 0 to track...

Страница 12: ...C Azimuth O waveforms 9 7 Index Burst Verification B c D A Case of B C Azimuth x A A CE 30 DAD 15 Fig 9 4 Azimuth Waveforms c A B D CaseofC B Azimuth x A 1 Insert an alignment diskette Seek to the tr...

Страница 13: ...a on track 0 and measure read level 3 Loosen the limiter mounting screw to free the limiter 4 Move the limiter until it just touches the head carriage on 1track and retighten the limiter mounting scre...

Страница 14: ...Fig 9 7 Asymmetry Waveform 10 PANASONIC ALIGNMENT DISKETTE Table 10 1 TPI PIN 135 817 384 3 5 inch Alignment Diskette Index Burst 40TRK 12 Azimuth 40TRK Radial Alignment 40TRK MODEL JU 38X...

Страница 15: ...mount it in the reverse order of the above 5 Check the operation of the holder assembly after it has been remounted 6 Operation check of the holder assembly a When mounting the two levers temporarily...

Страница 16: ...en remounting the right side left side clamps replace them with new ones Right Side Clamp 0 When remounting the right side clamp push it toward the right by the width of the play Fig 11 6 Remounting t...

Страница 17: ...n fastening screws In this case check if the steel belt is bent or distorted and also alignment 8 Return the tension handle to the original position and unhook the steel belt 9 Check the smooth operat...

Страница 18: ...detector cable connector from the J3 terminal 4 Remove the disk detector fastening screws and remove disk detector 5 Remount it following the reverse order of steps 1 to 4 Fig 11 13 Removing the Disk...

Страница 19: ...t T1 V out T2 TRKO ZP Sensor out for adjustment READY RY I SIDE SELECT SS INDEX IX STEP SP WO WRITE DATA 0 READ DATA GROUND AG WRITE WG WP DIRECTION 10 MOTOR ON MO DRIVE SELECT OS NC ai N 1 m V 1 a 0...

Страница 20: ...13 EXPLODED VIEW 1 1 8 8 18...

Страница 21: ...42 I I I 0 I I i 0 I I I I 19...

Страница 22: ...4SO 1_ _80B4 RoJler For Ejectj_ 1 1 2 YTF1 121B4 Wailier 1 30 YTF1 K00363B4 a erB 1 31 YTI1 O B4 WailierT 2 32 YT _D Q 48 0B4 L1m1ter TR 1 3 YTD2ZP 24 M1 cro wrtcb_ For Drsls_Detectj_ 1 1 _4 fl11lillT...

Страница 23: ...Electj_ 1 29 YTF1KOO12184 Waili_er 1 30 YTF1K00363B4 Wasb_er B 1 31 YTF1 K Q 037084 Wafuer C 2 32 YTF3 D048 0B4 L1m1terITRKCW 1 33 YTD2ZP 24 M1cro Sw1tc_h_JFor D1 Detect 1 1 _ TUillfil_T_ Q j_ensor se...

Страница 24: ...YTF 1KO_Q_l21 B4 Was_ ier 1 30 YTF1K00163B4 Wasner B 1 1 YT 1 K_QQ17 B4 Wasfi_er_C 2 2 YTF D 4830B4 L1m1terJ TJ K J 1 33 YTD21_P1_4 M1cro iw1tq _ For_Qjs s_ Detectj_ 1 1 M _ Q _iensor Assemltlillor 1...

Страница 25: ...4 FNC00030B42_ Low Fr uenc y_ Co 2 1 R22 23 MCR 18EZHG_131_ C_bj_Q_Res1stor 2 R35 MCR18EZHG272 Ch Q_Resistor 1 R36 MCR18EZHJ221 C 5 l Q Resistor 1 R7_L_8 9 MCR18EZHJ331 Chip Resistor 3 R6 MCR18EZHJ _9...

Страница 26: ...HJlZT fil7 28 R2 J MCR18EZHJ393 M Rj8EZHJ47_1 Rl M R 1B_EZRJ842 Part Name Description Electro Y _e Ca_J _acitor Film Ca_gac1tor eram1c Ca_gac1tor Ceramic Ca_J ac1tor onriectorifiliort P u fil onnector...

Страница 27: ...424 Low Freg_uen y_Co 1 1 L3 4 FNC00030B426 Low Freq_uenc _Coil_ 2 1 R22 23 MCR18EZHG332 Q ilQ Resistor 2 R3s MCR18EZHG682 Ch1_g Resistor i R36 MCR18EZHJ221 ChiQ Resistor 1 R7 8 9 MCR18EZHJ331 QiliJ_R...

Страница 28: ...C I t I iJI 1 a I ESW u r I r I IO r I CCI CCI N C I I 11 I DA7 Q I CT i I 23 1 U 3 U 3 U U U 0 0 U 8 Q 6 I ft l 1 a U j c a 3 5t RWS 1 w iI WSW WG I J 0A2 r I 21 3 1 1 rq r iI H1sp HS AI 2 i 19 i _ r...

Страница 29: ...4 1 rus STEP SIDE SELECT DIRECTION WRITE GATE I I n L __ _ _ _ _ _ 40 qSTP 2 ________ t t i 4 2 SiS l c J 1 r b 1 8 1I b 1 I RO I n 1 30 C7 330 CS11 3 r 5 ll r Rll Xt I lM 4 0M a J CB o C11 C12 5V 12V...

Страница 30: ...I a I I I CJr 1 I N I I 19 oc 40 5 o 10L J 0 LS CIB Tl L6 L 2 _ coH i __ J_6 T 2 n 4 J 2 1 1I d d b RJ P 11 IL I ZP 21 1 j1L R 3 6 C27 L3E RY I J I H c45 s IX I 34 R6 SP 33 WO IBI N2VO RD I F p K 0 I...

Страница 31: ...I 7 LJ 19rLL r c2 om c 22 ll ca rn rm 1 N ir tJ IL R29 _ r l t i R AL ir M o Rll o o R2 o tJ 28 n 11 N 11 R37 Ct N DA I r Cl9 R tJ_ t FH 31 r DA2 0 tJ QI N DAS R41 n tJ t t t n I lg Q R 33 n u H I i R...

Страница 32: ...l PUBLICATION NO TITLE WHAT IS YOUR OVERALL RATING THIS PUBLICATION 0 VERY GOOD D FAIR D VERY POOR 0 GOOD D POOR IS THE MATERIAL PRESENTED EFFECTIVELY D WELL ORGANIZED D FULLY COVERED D CORRECT D WELL...

Страница 33: ...Matsushita Communication Industrial Co Ltd Memory Systems Division 3 1 4 chome liaunaahima Higashi Kohoku ku Yokohama 223 JAPAN...

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