Sony MZ-R91 - Manuals

– 5 – PANEL ASSY, BOTTOM Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. Upper Panel Section Main Board, “Case Assy, Battery” LCD Module, “Button, Control”, “Service Assy, Upper Panel” (R90/R91) Main ...

– 7 – ) ) ) ) @ @ ^ 6 Remove the ornamental belt assy in the direction of arrow C . 2 Open toward the direction B to disengage two bosses and convex portions pointedwith * . 1 Pull toward the direction A to disengage two bosses . Note: As the ornamental belt assy is very fragile, do not give anexces...

– 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 inthe test mode. In this overall adjustment mode, the protect switchis detected to judge the disc, CD or MO, and each adjustment isautomatical...

– 12 – [Configuration of Test Mode] [Manual Mode] Mode to adjust or check the operation of the set by function.Normally, the adjustment in this mode is not executed.• Transition method in Manual Mode1. Setting the test mode. (See page 11)2. Press the > or [VOL +] key activates the manual mode whe...

– 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 thepower adjustment value is displayed. 6. Quit the manual mode, and press x key to return to the test ...

– 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)However, before starting automatic adjustment, the memoryclear, power adjustment and temperature adjustment must beperformed in the manual mod...

– 20 – [Temperature 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 ambie...

– 21 – [Laser Power Check] 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. Open the cover and set the laser power meter on the obj...

MZ-R90/R91 – 23 – – 24 – SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – SERVO Section – W V U OVER WRITE HEAD DRIVE IC603 DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 16M BIT D-RAM IC502 (1/2) RF AMP, FOCUS/TRACKING ERROR AMP IC501 FOCUS/TRACKIN...

MZ-R90/R91 – 25 – – 26 – – 27 – – 28 – 6-2. BLOCK DIAGRAM – A/D, D/A CONVERTER, AUDIO Section – 6-3. BLOCK DIAGRAM – KEY CONTROL/DISPLAY/POWER SUPPLY Section – A/D, D/A CONVERTER IC301 EEPROM IC802 05 D (Page 24) F (Page 24) • SIGNAL PATH : REC (ANALOG IN) : PLAY (ANALOG OUT) : REC (DIGITAL IN) RESE...

MZ-R90/R91 – 29 – – 30 – – 31 – – 32 – 6-4. PRINTED WIRING BOARD • Semiconductor Location Ref. No. Location D 3 0 1 B - 1 0 D 3 0 2 B - 9 D 3 0 3 C - 4 D 3 0 4 B - 1 0 D 5 0 1 G - 1 0 D 6 0 0 F - 6 D 6 0 1 F - 9 D 6 0 2 G - 6 D 6 0 3 H - 9 D 8 0 1 E - 1 2 D 8 0 2 F - 1 2 D 8 0 3 D - 1 1 D 8 0 4 F - ...

MZ-R90/R91 – 33 – – 34 – – 35 – – 36 – – 37 – 6-5. SCHEMATIC DIAGRAM • See page 38 for Waveforms. • See page 41 for IC Block Diagrams.

– 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 (IC502) 2 REXT — Connected to the external resistor for the ADIP amplifier control 3 WPPLPF — Connected to ...

– 55 – (3) CHASSIS SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 X-4952-044-1 BELT ASSY (S), ORNAMENTAL (SILVER) (R90/R91) 101 X-4952-337-1 BELT (B) ASSY, ORNAMENTAL (BLACK) (R90: BLACK) 102 4-223-076-01 SHEET (TERMINAL), INSULATING 103 4-223-083-01 SPRING (AR...

– 57 – SECTION 8 ELECTRICAL PARTS 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-3323-374-A MAIN BOARD, COMPLETE (R90: FR/R91: FR)A-3323-491-A MAIN BOARD, COMPLETE (R90: HK, JEW/R91: HK, JEW) ...

– 62 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Sony Corporation Personal Audio Division Company 9-927-187-12 2000B0586-1 Printed in Japan C 2000. 2 Published by General Engineering Dept. S804 1-771-770-21 SWITCH, SLIDE (HOLD) S806 1-771-860-21 SWITCH, PUSH (PROTECT ...

SERVICE MANUAL MZ-R90/R91 SUPPLEMENT-1 File this supplement with the service manual. Subject: 1. Addition of Korean Model2. Correction (ENG-00014) US Model Canadian Model Australian Model Chinese Model MZ-R90 AEP Model UK Model E Model Tourist Model MZ-R90/R91 2000. 07

– 2 – 1. Addition of Korean Model Korean Model has been added.This is the same as Hong Kong model which is not described in this supplement-1.Refer to MZ-R90/R91 original service manual (9-927-187- S ) for other information. • EXPLODED VIEWS Page Hong Kong Model Korean Model Ref. No. Part No. Descri...

– 3 – 2. Correction EXPLODED VIEWS ! : Indicates changed portion. Page 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. No. Part No. Description...

– 4 – • ELECTRICAL PARTS LIST Page INCORRECT CORRCT Ref. No. Part No. Description Remark IC501 8-759-682-68 IC SN761056CDBTIC601 8-759-678-83 IC MPC17A56FTAEBIC901 8-759-678-82 IC MPC18A31FTAEB Q101 8-729-044-58 FET SI2304DS-T1 Q201 8-729-044-58 FET SI2304DS-T1 Ref. No. Part No. Description Remark I...