Manuale d’uso / di manutenzione del prodotto MZ-R91 del fabbricante Sony
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SERVICE MANUAL POR T ABLE MINIDISC RECORDER US Model Canadian Model A ustralian Model Chinese Model MZ-R90 AEP Model UK Model E Model T our ist Model MZ-R90/R91 SPECIFICA TIONS MZ-R90/R91 US and f oreign patents licensed from Dolby Laboratories Licensing Corporation.
– 2 – T ABLE OF CONTENTS 1. SER VICING NO TES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBL Y ......................................................
– 3 – NO TES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body .
– 4 – SECTION 2 GENERAL • LOCA TION OF CONTROLS – The recor der – 1 2 3 5 4 6 7 8 9 qd 0 qa qs qf qg ql qh qj qk 1 9 2 3 4 5 6 7 8 0 1 3 2 6 7 0 8 9 qa qs qd qf 5 4 1 x (stop) /CHARGE button.
– 5 – P ANEL ASSY , BOTT OM Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBL Y • This set can be disassembled in the order shown below .
– 6 – • MZ-R91 1 five scre ws (1.4) 2 LCD modul e 3 control button 4 upper panel service assy 1 five tapping scre ws (1.7) 2 LCD module 5 upper panel service ass y 3 control button 4 adhesive sheet (control button) Note: The control buttons are stuck with strong adhesive sheets .
– 7 – ) ) ) ) @ @ ^ 6 Remov e the or namental belt assy in the direction of arrow C . 2 Open tow ard the direction B to disengage two bosses and conv ex portions pointed with * .
– 8 – 2 boss 3 MD mechanism deck (MT -MZR90-165) 2 boss 4 tension spring (ar m) 5 set chassis ass y 1 screw (1.4) 1 screw (1.4) 8 bearing 5 screw 4 rack spring 3 precision pan screw (M1.4) 1 washer (0.8 - 2.5) 2 gear (SA) 5 screw 7 Pull off the lead screw .
– 9 – 1 Remov e two solders of DC motor (ov er write head up/down) (M603). 1 Remov e four solders of DC motor (sled) (M602). 1 Remov e four solders of DC motor (spindle) (M601).
– 10 – 4 two precision pan screws (M1.4) 5 DC motor (sled) (M602) 1 Remov e four solders of motor flexib le board. 2 washer (0.8 - 2.5) 3 gear (SA) 1 Remov e six solders of motor flexib le board. 4 three precision pan screws (M1.4) qa DC motor (ov er write head up/down) (M603) 6 two precision pan screws (M1.
– 11 – SECTION 4 TEST MODE [Outline] • This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disc to be automatically adjusted when in the test mode. In this overall adjustment mode, the protect switch is detected to judge the disc, CD or MO, and each adjustment is automatically executed in order .
– 12 – [Configuration of T est Mode] [Manual Mode] Mode to adjust or check the operation of the set by function. Normally , the adjustment in this mode is not executed. • T ransition method in Manual Mode 1. Setting the test mode. (See page 11) 2.
– 13 – 5. The display changes a shown below each time the jog key on the set is turned up or [DISPLAY] key on the remote com- mander is pressed. However in the power mode (mode number 700 ’ s), only the power adjustment value is displayed. 6. Quit the manual mode, and press x key to return to the test mode (display check mode).
– 14 – [Sound Skip Chec k Result Display Mode] This set can display and check the error count occurring during record and play . • Setting method of Sound Skip Chec k Result Display Mode 1.
– 15 – [Self-Diagnosis Displa y Mode] • This set uses the self-diagnosis system in which if an error oc- curs in recording/playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM.
– 16 – • Description of Indication History History code number Description 1st0 The first error 1st1 T otal recording time when 1st0 was generated (Higher rank byte) 1st2 T otal recording time w.
– 17 – [Ke y Check Mode] This set can check if the set and remote commander function nor- mally . • Setting Method of Key Check Mode 1. Setting the test mode. (See page 11) 2. Press the [T MARK] or [DISPLAY] key on the remote com- mander for several seconds activates the key check mode where all segments of LCD turn OFF .
– 18 – SECTION 5 ELECTRICAL ADJUSTMENTS [Outline] • In this set, automatic adjustment of CD and MO can be per- formed by entering the test mode. (See page 11) Howe ver , before starting automatic adjustment, the memory clear , power adjustment and temperature adjustment must be performed in the manual mode.
– 19 – • Adjustment method of VC PWM Duty (L) (mode number: 762) 1. Select the manual mode of the test mode, and set the mode number 762. (See page 12) 2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL - -] key (voltage down) so that the voltage becomes 2.
– 20 – [T emperature Correction] • Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode num- ber 014. (See page 12) 2. Measure the ambient temperature. 3. Adjust with [VOL +] , [VOL - -] key so that the adjusted value (hexadecimal value) becomes the ambient temperature.
– 21 – [Laser P ower Chec k] Connection : Check Method : 1. Select the manual mode of test mode, and set the laser power adjusting mode. (mode number 010) 2. Press the . key continuously until the optical pick-up moves to the most inward track. 3.
MZ-R90/R91 – 23 – – 24 – SECTION 6 DIA GRAMS 6-1. BLOCK DIA GRAM – SER V O Section – WV U OVER WRITE HEAD DRIVE IC603 DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMOR.
MZ-R90/R91 – 25 – – 26 – – 27 – – 28 – 6-2. BLOCK DIA GRAM – A/D, D/A CONVER TER, A UDIO Section – 6-3. BLOCK DIA GRAM – KEY CONTROL/DISPLA Y/PO WER SUPPL Y Section – A/D, D/A .
MZ-R90/R91 – 29 – – 30 – – 31 – – 32 – 6-4. PRINTED WIRING BO ARD • Semiconductor Location Ref . No. Location D301 B-10 D302 B-9 D303 C-4 D304 B-10 D501 G-10 D600 F-6 D601 F-9 D602 G.
MZ-R90/R91 – 33 – – 34 – – 35 – – 36 – – 37 – 6-5. SCHEMA TIC DIA GRAM • See page 38 for W aveforms. • See page 41 for IC Bloc k Diagrams.
– 39 – – 40 – – 41 – – 42 – • IC Block Dia grams IC301 AK4517BVQ-L 1 49 50 51 52 53 54 55 56 57 48 58 59 60 61 62 63 64 24 23 22 18 17 29 28 27 26 25 21 20 19 32 31 30 2 3 4 5 6 7 8 .
– 43 – IC601 MPC17A56FT A IC602 MPC17A17XDTBR2 + – + – 24 23 22 21 20 19 VC VG 1 2 3 4 5 6 7 8 3PHASE CONTROL PRE DRIVER 48 VC VC VC PRE DRIVER H-BRIDGE CONTROL VC H-BRIDGE CONTROL VG 47 46 45.
– 44 – IC603 MPC18A20MT AEL 21 22 23 24 25 26 27 28 29 30 16 17 18 19 20 2 3 5 4 6 7 8 9 10 1 11 12 13 14 15 CONTROL LOGIC CHARGE PUMP SAW GEN SAW CLK OSC EFM LOGIC BIAS VREF PRE DRIVER VREF COMP .
– 45 – IC804 R V5C348A-E2 IC901 MPC18A31FT A 1 2 3 4 5 10 9 8 7 6 VDD OSC IN OSC OUT CE /INTR 32K OUT SCLK SO SI VSS ALARM W REGISTER (WEEK,MIN,HOUR) ALARM D REGISTER (MIN,HOUR) 32KHz OUTPUT CONTR.
– 46 – 6-6. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC501 SN761056ADBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the CXD2660GA (.
– 47 – • MAIN BOARD IC502 CXD2660GA Pin No. Pin Name I/O Description 1 VDC0 — Power supply terminal (+1.8V) (for internal logic) 2 MNT0 I/O Not used (open) 3 MNT1 O Recording shock detect sign.
– 48 – Pin No. Pin Name I/O Description 46 FS256 O Clock signal (11.2896 MHz) output to the A/D, D/A converter (IC301) (X' tal system) 47 to 52 A03, A04, A02, A05, A01, A06 O Address signal output to the external D-RAM Not used (open) 53 VDIO1 — Power supply terminal (+2.
– 49 – Pin No. Pin Name I/O Description 103 XLRF O Serial latch signal output terminal Not used (open) 104 CKRF O Serial clock signal output terminal Not used (open) 105 DTRF O Writing data output.
– 50 – • MAIN BOARD IC801 CXR701080-013GA (MASTER CONTROLLER) Pin No. Pin Name I/O Description 1 SYNC REC I SYNCHRO REC switch (S801) input terminal “ L ” : off, “ H ” : on 2 OFTRK I Off.
– 51 – Pin No. Pin Name I/O Description 39 FFCLR O Input latch output for starting signal to the MPC18A31FTA (IC901) 40 SLEEP O System sleep control signal output to the MPC18A31FTA (IC901) “ H .
– 52 – Pin No. Pin Name I/O Description 80 VB MON I Un-regulator power supply voltage monitor input terminal (A/D input) 81 CHG MON I Rechargeable battery voltage monitor input from the MPC18A31FT.
– 53 – (1) P ANEL SECTION (MZ-R90) SECTION 7 EXPLODED VIEWS Les composants identifiés par une marque 0 sont critiquens pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. The components identified by mark 0 or dotted line with mark 0 are critical for safety .
– 54 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark (2) P ANEL SECTION (MZ-R91) 51 4-223-077-21 LID, BATTER Y CASE (BLUE) 51 4-223-077-31 LID, BA TTERY CASE (RED) 51 4.
– 55 – (3) CHASSIS SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 X-4952-044-1 BEL T ASSY (S), ORNAMENT AL (SIL VER) (R90/R91) 101 X-4952-337-1 BEL T (B) ASS.
– 56 – 165 166 177 167 168 169 167 170 153 171 172 173 154 159 M602 152 153 175 M601 151 176 M603 152 155 154 156 157 158 162 152 163 154 164 154 174 160 161 R91 (4) MD-MECHANISM DECK SECTION (MT -MZR90-165) Ref. No. Part No. Description Remark Ref.
– 57 – SECTION 8 ELECTRICAL P ARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3323-361-A MAIN BOARD, COMPLETE (R90: AEP , UK, E, AUS, CH/R91: AEP , UK) A-3323.
– 58 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C502 1-127-772-81 CERAMIC CHIP 33000PF 10% 10V C503 1-164-940-11 CERAMIC CHIP 0.0033uF 10% 16V C504 1-164-940-11 CERAMIC CHIP 0.0033uF 10% 16V C505 1-164-943-11 CERAMIC CHIP 0.
– 59 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1004 1-164-939-11 CERAMIC CHIP 0.0022uF 10% 16V < CONNECTOR > * CN501 1-778-168-11 CONNECTOR, FFC/FPC (ZIF) .
– 60 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN Q309 8-729-928-81 TRANSISTOR DTC144EE-TL Q501 8-729-928-81 TRANSISTOR DTC144EE-TL Q601 8-729-046-43 FET HA T20.
– 61 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN R535 1-216-864-11 MET AL CHIP 0 5% 1/16W R536 1-216-864-11 MET AL CHIP 0 5% 1/16W R537 1-216-864-11 MET AL CHIP 0 5% 1/16W R602 1-216-864-11 MET AL CHIP 0 5% 1/16W R604 1-218-891-11 MET AL CHIP 68K 0.
– 62 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Sony Corporation P ersonal Audio Division Compan y 9-927-187-12 2000B0586-1 Printed in Japan C 2000.
SERVICE MANUAL MZ-R90/R91 SUPPLEMENT -1 File this supplement with the service manual. Subject: 1. Addition of K orean Model 2. Correction (ENG-00014) US Model Canadian Model A ustralian Model Chinese Model MZ-R90 AEP Model UK Model E Model T our ist Model MZ-R90/R91 2000.
– 2 – 1. Ad dition of K orean Model K orean Model has been added. This is the same as Hong K ong model which is not described in this supplement-1. Ref er to MZ-R90/R91 original ser vice manual (9-927-187- S ) f or other information. • EXPLODED VIEWS P age Hong K ong Model K orean Model Ref.
– 3 – 2. Correction EXPLODED VIEWS ! : Indicates changed portion. Pa ge INCORRECT CORRECT 54 Ref. No. Part No. Description Remark 9 3-048-299-01 WASHER (LCD) Ref. No. Part No. Description Remark 53 3 9 3 % Ref. No. Part No. Description Remark 114 3-049-215-01 SHEET (PRO) Ref.
– 4 – • ELECTRICAL P AR TS LIST P age INCORRECT CORRCT Ref. No. Part No. Description Remark IC501 8-759-682-68 IC SN761056CDBT IC601 8-759-678-83 IC MPC17A56FT AEB IC901 8-759-678-82 IC MPC18A31FT AEB Q101 8-729-044-58 FET SI2304DS-T1 Q201 8-729-044-58 FET SI2304DS-T1 Ref.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Sony MZ-R91 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Sony MZ-R91 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Sony MZ-R91 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Sony MZ-R91 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Sony MZ-R91, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Sony MZ-R91.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Sony MZ-R91. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Sony MZ-R91 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
