PanasonicメーカーSJ-MJ88の使用説明書/サービス説明書
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ORDER No. A D0101008C2 Portable MD Pla y er SJ-MJ88 MD unit: R A E1611Z Mechanism Series Colour (S)...................Sil v er T y pe A reas EB........
SPECIFIC A TIONS Specifications A udio S y stem : M iniDisc digital audio s y stem Laser : Semiconductor laser (=780 nm) Sampling frequenc y : 44.1 kHz Coding : A dapti v e T ransform A coustic Coding ( A T R A C) No.
Panasonic alkaline: A bout 70 hours Both together : A bout 88 hours Charger Input : A C120-240 V (EG) / A C 230-240V (EB), 50 Hz 4W Output : DC 340m A (EG)/DC 350m A (EB), 1.2V Recharging time : A bout 2 hours Notes: - The pla y time ma y be less depending on the operating conditions.
- Carr y ing case..........................................................1 pc. (RFC0056-K) For EB area - Charger...................................................................1 pc. (RP-BC155 A EBY) For EG area - Charger..........................
3. Operating Instructions 4. Handling Precautions for Tra v erse Deck The laser diode in the tra v erse deck (optical pickup) ma y break do w n due to potential difference caused b y static electricit y of clothes or human bod y. So, be careful of electrostatic breakdo w n during repair of the tra v erse deck (optical pickup).
Fig. 1 Fig. 2 4.2. Grounding for electrostatic breakdo w n pre v ention 1. Human bod y grounding 6.
Use the anti-static w rist strap to discharge the static electricit y from y our bod y . (as sho w n in Fig. 3 ) 2. Work table grounding Put a conducti v e material (sheet) or steel sheet on the area w here the tra v erse deck (optical pickup) is placed, and ground the sheet.
5. Operation Checks and Component Replacement Procedures - This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. - For reassembl y after operation checks or replacement, re v erse the respecti v e procedures.
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- Check the P.C.B. as sho w n belo w. 10.
5.2. Replacement for the lock unit, open knob and intermediate cabinet - Follo w the (Step 1) - (Step 3) of item 5.1. 11.
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5.3. Replacement for the disc co v er ass’y - Follo w the (Step 1) - (Step 3) of item 5.1. - Follo w the (Step 1) - (Step 3) of item 5.2. 15.
5.4. Replacement for the tra v erse motor - Follo w the (Step 1) - (Step 3) of item 5.1. 16.
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5.5. Replacement for the optical pickup - Follo w the (Step 1) - (Step 3) of item 5.1. - Follo w the (Step 1) - (Step 5) of item 5.4. 20.
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6. Measurements and A djustments Note: A fter replacing the main components (optical pickup or tra v erse motor, etc.) of mechanism unit block, change to the adjust mode, and then perform the “Laser po w er adjustment”, “Off-set automatic adjustment” and “Pla y back-onl y disc/ magneto-optical disc automatic adjustment”.
3. Laser po w er meter (LE8010 or compatible meter) 4. Remote controller 6.2. Laser po w er adjustment, Off-set automatic adjustment, Pla y back-onl y disc/magneto-optical disc automatic adjustment magnet 6.2.1. Enter the adjustment mode Caution: Place the unit on the insulation sheet w ith the disc co v er side facing up.
A djustment mode Display Laser po w er adjustment T 0E Off-set automatic adjustment T 1E M agneto-optical disc automatic adjustment T 2E Pla y back-onl y disc automatic adjustment T 3E Jitter meajurem.
- Laser diode in the optical pickup ma y be destro y ed b y the static electricit y generated in y our clothes or bod y . Be especiall y careful w ith the static electricit y. 6.2.2.2. A djustment Procedure 1. Unco v er the laser po w er meter. (as sho w n in Fig.
4. Press the ke y of the remote controller (“LD ” changes to “LP ” of the LCD). 5. Set the laser po w er at 600 W±10 % b y using VOL+ and VOL- ke y of the remote controller.
Fig. 9 30.
6.2.3. Off-set automatic adjustment 1. Remo v e the mechanism unit from the disc co v er. Then mo v e the optical pickup to the center, and attach the mechanism unit again to the disc co v er. 2. With “T1E ” displa y ed, lea v e the disc co v er open.
4. Press ke y (“ A OK ” or “ A NG ” changes to “T2E ”). 5. A fter the adjustment is finished, remo v e the disc. 6.2.5. Pla y back-onl y disc automatic adjustment 1. Ha v e “T3E ” indicated on displa y , set the pla y back-onl y disc. (Check to make sure the disc is properl y seated.
M ain unit’s ke ys LCD displa y position and letters A fter the third ke y is pressed, the second digit displa y ed w ill change from “ ” to “O ”. VOL+ A fter the second ke y is pressed, the third digit displa y ed w ill change from “ ” to “O ”.
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8. Schematic Diagram Notes 8.1. T y pe Illustration of IC's, Transistors and Diodes 41.
8.2. Schematic Diagram Notes This schematic diagram ma y be modified at an y time w ith the de v elopment of ne w technolog y. Notes: S201 : Volume control s w itch (+) S202 : v olume control s w itch (-) S203 : Skip/search s w itch ( ) S204 : Skip/search s w itch ( ) S206 : Pla y /stop s w itch ( ) S207 : Co v er open/close det.
Voltage and signal line : Positi v e v oltage line : Pla y back signal line 9. Schematic Diagram 10. Printed Circuit Board Diagram 11. Block Diagram 12.
Pin No. M ark I/O Di v ision Function 1 LDO O LD amp. output terminal 2 LDIN I LD amp. re v erse input terminal 3 A PCPD I Photo diode light quantit y det.
24 Pin No. M ark I/O Di v ision Function 25 A DIP O A DIP signal output terminal 26 NC — Not used, open 27 28 RFSWHL I Reflectance H/L s w itching signal input terminal 29 RFSWPG I Pit/Cr v s w itch.
Pin No. M ark I/O Di v ision Function 1 RV DD 3 I Po w er suppl y to internal DR AM 2 RV DD 18 O Voltage regulator output terminal (Connects to internal DR A M suppl y terminal) 3 RV DD 23 — Voltage.
Pin No. M ark I/O Di v ision Function 19 RV DD 1 I Po w er suppl y to internal DR AM 20 RV SS 2 — GND to internal DR AM 21 FODP O Focus dri v e (+) PW M signal output terminal 22 FODM O Focus dri v .
terminal for EF M PLL Pin No. M ark I/O Di v ision Function 45 A DIP I A DIP signal input terminal 46 PE AK I Ser v o A DC input terminal 47 B T OM 48 B AT 49 G A IR AN 50 M ON3T 51 VREFI I Ser v o A .
12.3. IC201 (MN101C32G A E): SYSTEM CONTROL Pin No. M ark I/O Di v ision Function 1 VREF- — A D reference input (-) (connected to GND) 2 ( A N0) RE M KEY I Remote cont. ke y input terminal 3 ( A N1) KEY IN I Unit ke y input terminal 4 ( A N2) B A TT I Batter y v oltage det.
Pin No. M ark I/O Di v ision Function 22 SSDR I Read data input terminal for CPU interface 23 SSCLK O Clock output terminal for CPU interface 24 BUZZER O Confirmation tone output terminal 25 RST I Res.
Pin No. M ark I/O Di v ision Function 51 B A TT CHK LED — Batter y check LED dri v e output terminal (Not used, open) 52 JI TT ER OK — Process inspection output terminal (Not used, open) 53 REG2 I.
Pin No. M ark I/O Di v ision Function 77 PC O 4-ch. dri v er standb y output terminal (L:Standb y) 78 S T BY2 O FD/ T R coil po w er suppl y control output terminal 79 B A TT CHK O Batter y check output terminal (Not used, open) 80 M SP RST O M SP reset output terminal (L:Reset) 12.
Pin No. M ark I/O Di v ision Function 1 IN1R I H bridge 1 re v erse input terminal 2 IN2F I H bridge 2 for w ard input terminal 3 IN2R I H bridge 2 re v erse input terminal 4 S T A LL I Standb y input.
Pin No. M ark I/O Di v ision Function 18 SPUIN I SPIN detection comparator (U-phase) input terminal 19 SPVIN I SPIN detection comparator (V-phase) input terminal 20 SPWIN I SPIN detection comparator (.
Pin No. M ark I/O Di v ision Function 40 SLV M2 I Stepping po w er unit’s po w er suppl y 2 41 SLVOUT O Stepping motor (V) output terminal 42 SLPG1 — Stepping po w er unit’s GND 1 43 SLUOUT O St.
Pin No. M ark I/O Di v ision Function 62 H1FOUT O H bridge 1 for w ard output terminal 63 H1PG1 — H bridge 1 po w er unit’s GND 1 64 IN1F I H bridge 1 for w ard input terminal 13. Caution in Use of Rechargeable Batter y A ss'y - Take Rechargeable Batter y A ss’ y out of Batter y Carr y ing Case and use it.
- Replacement parts w ill be supplied for Batter y Carr y ing Case (RF A 0475-Q) w ithout Rechargeable Batter y A ss’ y. - To y our customers, deli v er y Rechargeable Batter y A ss’ y together w .
safet y. *Furthermore, special parts w hich ha v e purposes of fire-retardant (resistors), high-qualit y sound (capacitors), lo w -noise (resistors), etc. are used. *When replacing an y of components, be sure to use onl y manufacture’s specified parts sho w n in the parts list.
Ref. No. Part No. Part Name & Description Pcs Remarks 13-5 RMX0156-1 STOPPER RUBBER 1 14 RJR0195-2 B A TTERY SH A FT 1 15 R A F2000 A -M OPTIC A L PICKUP 1 16 RXJ0025 DRIVE SH A FT 1 17 RHD14067 SCREW 5 18 RJC99039 RECH A RGE.B A TT.TERMIN A L(+) 1 A1 RP-BP62EYS1 RECH A RGE A BLE B A TT.
Ref. No. Part No. Part Name & Description Pcs Remarks C308 ECUEN A 104KBQ 10V 0.1U 1 F1G1 A 104 A 014 C309-11 ECUENC333KBQ 16V 0.033U 3 F1G1C333 A 004 C318 ECUVNJ274KBV 63V 0.
Ref. No. Part No. Part Name & Description Pcs Remarks PCB1 REP3063 A -M M A IN P.C.B. A SS’Y 1 (RTL) Q1 2SB1295-6-TB TR A NSISTOR 1 B1 A DKB000001 Q5 XP152 A 12C0MR TR A NSISTOR 1 B1DH A C000002.
Ref. No. Part No. Part Name & Description Pcs Remarks R507 EXB24V100JX 1/16W 10 1 R509 ERJ2GEJ221X 1/4W 220 1 ERJ2RMJ221X R512 ERJ3GEYJ225V 1/16W 2.2M 1 S201,02 RSG0051-P SW,VOLUME +,- 2 S203,04 EVQPUL02K SW,SKIP/SE A RCH 2 S206 EVQPUL02K SW,PL A Y/STOP 1 S207 RSH1 A 039-A SW,COVER OP/CL DET.
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