Sony MZ-R91 service manual Chassis ASSY, SET, MD Mechanism Deck MT-MZR90-165, Service ASSY, OP

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“CHASSIS ASSY, SET”, MD MECHANISM DECK (MT-MZR90-165)

2 boss

SERVICE ASSY, OP

3 MD mechanism deck (MT-MZR90-165)

2 boss

4 tension spring (arm)

1 screw (1.4)

5 set chassis assy

1screw (1.4)

3precision pan screw (M1.4)

4rack spring

5screw

8 bearing

1washer (0.8 - 2.5)

2 gear (SA)

7 Pull off the lead screw.

5 screw

9Opening the over write head toward the direction A, remove the OP Service assy toward

the direction B.

Note: Do not open the entire assy forcibly, when opening

the over write head.

over write head section

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Contents LCX-2R SpecificationsNEW Table of Contents DiagramsExploded Views Electrical Parts List Flexible Circuit Board RepairingSection Servicing Notes EepromHeadphones with a remote control RM-MZ2S SectionGeneral Location of ControlsUpper Panel Section Section DisassemblyPanel ASSY, Bottom MZ-R91 LCD MODULE, BUTTON, CONTROL, Service ASSY, Upper PanelMZ-R90 Main BOARD, Case ASSY, Battery Belt ASSY, OrnamentalService ASSY, OP Chassis ASSY, SET, MD Mechanism Deck MT-MZR90-165Holder Assy Motor Flexible BoardMOTOR, DC Sled M602 Test Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeA n u a l Configuration of Test ModeManual Mode Overall Adjustment Mode 011 0 F F J 0011 0 6 3 B 0 011 0 5 9 a 0Sound Skip Check Result Display Mode Setting method of Sound Skip Check Result Display ModeT a t T r ySelf-Diagnosis Display Mode 000 1 s tDescription of Error Indication Codes Clearing Self-Diagnosis Data and Total Recording TimeDescription of Indication History RECKey Check Mode Key IndicationSection Electrical Adjustments E s NE s O K ? E sC l P W M C h P W MR h V c l R h V c hE t T m p S S YD R U N D O KLaser Power Check O O KE s u m e E s C l rSection Diagrams Block Diagram Servo SectionSignal Path REC DigitalSignal Path Play Analog OUT REC Analog REC Digital Block Diagram A/D, D/A CONVERTER, Audio SectionBlock Diagram KEY CONTROL/DISPLAY/POWER Supply Section JEW Printed Wiring BoardSemiconductor Location MZ-R90/R91 IC Block Diagrams IC301 WaveformsIC501 SN761056ADBT IC304, 305 RN5RZ25AA-TRIC601 IC602IC902 IC603IC605 XC6367B103MR IC803 XC6383C301MR IC804 RV5C348A-E2 IC901IC PIN Function Description VDC0 SwdtSclk VSC0VDIO1 VSIO1Xras IxoeXlrf ApcrefLddr VDC4Sync REC Pause KEYSense WrpwrFfclr SleepTSB Edge GND SWHalf Lock RMC KEYSET KEY REC KEYHK, CH, JEW Section Exploded ViewsPanel Section MZ-R90 Panel Section MZ-R91 Chassis section Not supplied102 103 104 108 109 Chassis Section101 105 113 112 114 106 110 107 111 109 MD-MECHANISM Deck Section Electrical Parts List MainCeramic Chip 5PF CAP, ChipConnector FILTER, Chip EMI Common ModeCXD2660GA IC MPC17A56FTAEBFET HAT2051T-EL FET HAT2050T-ELFET Transistor ZDT6718TAOPEN/CLOSE Detect SwitchComposition Circuit Block SWITCH, Slide Hold SWITCH, Slide Synchro RECThermistor TH901 1-803-795-21 THERMISTOR, Positive Vibrator MiscellaneousMZ-R90/R91 Subject Addition of Korean Model CorrectionHong Kong Model Korean Model Electrical Parts ListExploded Views Indicates changed portion.EXPLODED Views 112 105 106 #114151 176 @ IC MPC17A56FTA IC MPC18A31FTAEB