Sony MZ-R900 service manual Table of Contents, Disassembly, Diagrams, Exploded Views

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MZ-R900

3)Measured in accordance with the EIAJ(Electronic Industries Association of Japan) standard.

4)When using a 100% fully charged rechargeable battery.

5)When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan).

When playing

(Unit: approx.hours)(EIAJ1))

Batteries

Stereo

LP2

LP4

NH-14WM

21

23

26

nickel metal

 

 

 

hydride

 

 

 

rechargeable

 

 

 

battery2)

 

 

 

LR6 (SG)

30

35

38

Sony alkaline

 

 

 

dry battery3)

 

 

 

NH-14WM

53

60

66

nickel metal

 

 

 

hydride

 

 

 

rechargeable

 

 

 

battery2)

 

 

 

+One LR6 (SG)3)

1)Measured in accordance with the EIAJ(Electronic Industries Association of Japan) standard.

2)When using a 100% fully charged rechargeable battery.

3)When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan).

Dimensions

Approx. 78.9 ⋅

17.1 ⋅ 72.0 mm (w/h/d)

(31/8 ⋅ 11/16 ⋅

27/8 in.)

Mass

Approx. 110 g (3.9 oz) the recorder only

Supplied accessories AC power adaptor (1) Headphones/earphones with a remote control

(1)

Rechargeable battery (1) Dry battery case (1)

Rechargeable battery carrying case (1) Carrying pouch/carrying case with a belt clip (except U.S.A model) (1)

AC plug adaptor (World model only) (1) Optical cable (1)

On power sources

•For use in your house: Use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction.

Polarity of the plug

 

TABLE OF CONTENTS

 

1.

SERVICING NOTES

3

2.

GENERAL

4

3.DISASSEMBLY

3-1.

Disassembly Flow

5

3-2.

Panel Assy, Bottom

5

3-3.

Panel Assy, Upper Section

6

3-4.

“LCD Module”, “Panel Assy, Upper”

6

3-5.

MAIN Board Assy

7

3-6. “Case Assy, Battery”, “MAIN Board”

7

3-7.

Strip, Ornamental

8

3-8.

“MD Mechanism Deck (MT-MZR900-171)”,

 

 

“Chassis Assy, Set”

8

3-9.

Service Assy, OP (LCX-4R)

9

3-10. Holder Assy

10

3-11. MOTOR FLEXIBLE Board

10

3-12. Motor, DC (Sled) (M602)

11

3-13. “Motor, DC (Spindle) (M601)”,

 

 

“Motor, DC (Over Write Head UP/DOWN) (M603)

11

4.

TEST MODE

12

5.

ELECTRICAL ADJUSTMENTS

17

6.DIAGRAMS

6-1. Block Diagram –SERVO Section–

27

6-2.

Block Diagram –AUDIO Section–

28

6-3. Block Diagram –KEY CONTROL/DISPLAY/

 

 

POWER SUPPLY Section–

29

6-4.

Printed Wiring Boards

30

6-5.

Schematic Diagram

31

6-6.

IC Pin Function Description

33

7.EXPLODED VIEWS

7-1.

Panel Section

39

7-2.

Chassis Section

40

7-3.

MD Mechanism Deck Section (MT-MZR900-171)

41

8.

ELECTRICAL PARTS LIST

42

Design and specifications are subject to change without notice.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS

AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0

SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

2

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Contents 927-991-13 SpecificationsBattery life1 Diagrams Table of ContentsDisassembly Exploded ViewsFlexible Circuit Board Repairing Section Servicing NotesSection General Looking at controlsPanel ASSY, Bottom Section DisassemblyDisassembly Flow Panel ASSY, Upper Section LCD MODULE, Panel ASSY, UpperCase ASSY, BATTERY, Main Board Main Board AssySTRIP, Ornamental MD Mechanism Deck MT-MZR900-171, Chassis ASSY, SETService ASSY, OP LCX-4R Holder Assy Motor Flexible BoardMOTOR, DC Sled M602 Operation in Setting the Test Mode Section Test ModeSetting Method of Test Mode Releasing the Test ModeTransition method in Manual Mode Configuration of Test ModeManual Mode A n u a l011 0 6 3 B 0 011 C 6 8 S 0F F J 0 0XX 1 0 0 0Setting method of Reset the Error Display Code Reset the error display codeDescription of Error Indication Codes Description of Indication History000 FF 000 P * * R000 RPLAYResOK? ResetResNV CC 021 ResAssy00 871 V5num872 V5dat 762 Vc1PWMHrefPw ADJ OKSetTmp WritPwOfst AssyAssy11 OfstOK000 *** NG Adjustment Method of Overall CD and MO Adjustment ModeOverall CD and MO adjustment items CD OKResClr Resume CC043 Res PatClr CC023 0D6100 023 0D6000023 0D6008 023 0D61A1023 0D6120 023 0D5DAA023 0D5E04 023 0D6400023 0D6CF6 023 0D6909023 0D6C00 023 0D6D00023 0D7603 023 0D751C023 0D7600 023 0D7800Section DiagramsBlock Diagram Servo Section Block Diagram Audio Section Block Diagram KEY CONTROL/DISPLAY/POWER Supply Section Waveforms Vp-pPrinted Wiring Boards Semiconductor LocationMZ-R900 IC Block Diagrams IC301 AK4562VNS-LXPC18A22FCR2 IC PIN Function Description Xtest Pause KEYMIC Sense MIFVSS3AVS2 AdioAVD2 AdrbSpcu DSPVDD2DSPVSS1 SpcvSSB Data TEST1, TEST0EVA SSB CLKLCD STB XPD ADAXCS LCD LCD RSTSection Exploded Views Panel SectionChassis Section MT-MZR900-171 Not suppliedMD Mechanism Deck Section MT-MZR900-171 Main Electrical Parts List SemiconductorsConnector MainXPC18A22FCR2 RES-CHIP CASE, Battery Charge Except JEW Memo Revision History
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