Manuals / Sony / Home Audio / MiniDisc Player

Sony MZ-R900 service manual Memo

Models: MZ-R900

1 50

Download 50 pages 31.92 Kb

Page 49

Image 49

MZ-R900

MEMO

Page 49

Image 49

Contents

PORTABLE MINIDISC RECORDER MZ-R900US Model Canadian Model3.DISASSEMBLY TABLE OF CONTENTS6.DIAGRAMS MZ-R900Flexible Circuit Board Repairing Notes on chip component replacementMZ-R900 SECTION SERVICING NOTES NOTES ON LASER DIODE EMISSION CHECKThe display window of the remote control The headphones/earphones with a remote controlMZ-R900 SECTION GENERAL Looking at controls3-1.DISASSEMBLY FLOW MZ-R900 SECTION DISASSEMBLY3-2.PANEL ASSY, BOTTOM 3-3.PANEL ASSY, UPPER SECTION MZ-R9003-4.“LCD MODULE”, “PANEL ASSY, UPPER” 2 case assy, battery 3 main board 3-6.“CASE ASSY, BATTERY”, “MAIN BOARD”MZ-R900 3-5.MAIN BOARD ASSY3-7.STRIP, ORNAMENTAL MZ-R9005 Remove the “strip, ornamental” B in the direction of arrow CMZ-R900 3-9.SERVICE ASSY, OP LCX-4R3-10.HOLDER ASSY MZ-R9003-11.MOTOR FLEXIBLE BOARD 3-12.MOTOR, DC SLED M602 MZ-R900Operation in Setting the Test Mode Setting Method of Test ModeMZ-R900 SECTION TEST MODE OutlineAudio Adjustment Servo AdjustmentOverall Adjustment Mode Major item switching011 L r e f P w 011 0 5 9 A011C 6 8 S 011O F F JDescription of Error Indication Codes Reset the error display codeSetting method of Reset the Error Display Code MZ-R900000P * * R MZ-R900 SECTION ELECTRICAL ADJUSTMENTS 021ResetSetting method of NV reset Change of Adjusted ValuesAdjustment method of Vc PWM Duty L item number Adjustment sequenceAdjustment method of Vc PWM Duty H item number Adjustment method of Vl PWM Duty item numberLaser Power Check Temperature CorrectionAdjustment Method of temperature correction 000 ADJ OKOverall Adjustment Mode Title Display Configuration of overall adjustmentElectrical Offset Adjusting Method MZ-R900000 Assy11 Overall CD and MO adjustment itemsXXXCD RUN 000 *** NG043 Resume CC 0230D6000 0230D5DAA 0230D6909 0230D751C SIGNAL PATH DIAGRAMSSECTION MZ-R900MZ-R900 • SIGNAL PATHPLAYBACK REC ANALOG INPage Waveforms MZ-R900MZ-R900 3131 MZ-R900MZ-R900 IC Block DiagramsIC301 AK4562VNS-LSC111257FCR2 IC551IC601 XPC18A22FCR26-6.IC PIN FUNCTION DESCRIPTION MZ-R900Pin No Pin NamePAUSE KEY MZ-R900MZ-R900 Focus error signal input from RF amp IC501DSPVDD2 MZ-R900156 MZ-R900XPD ADA MZ-R900MZ-R900 SECTION EXPLODED VIEWS7-1.PANEL SECTION 2 1 9 2 7 8 2 2 67-2.CHASSIS SECTION MZ-R9007-3.MD MECHANISM DECK SECTION MT-MZR900-171 MZ-R900MZ-R900 ELECTRICAL PARTS LISTSECTION MAINMAIN MZ-R900Ref. No MZ-R900 MAIN MAIN MZ-R900Ref. No Ref. No MZ-R900MZ-R900 MEMOMZ-R900 REVISION HISTORYDate Description of Revision