Sony MX-E501 service manual Main Board, Optical PICK-UP Assy LCX-4E

Page 7

3-4. MAIN BOARD

1screw (1.7)

5 Remove the soldering

7 battery case assy

2 claw

3battery case lid

3-5. OPTICAL PICK-UP ASSY (LCX-4E)

MZ-E501

6MAIN board

5 Remove the soldering

4ornamental strip

case (rear)

optical pick-up assy (LCX-4E)

1 washer

2 gear (SA)

5

3 screw (MI 1.4)

4 thrust detent spring

7

Image 7

Contents MZ-E501 SpecificationsExploded Views Table of ContentsDisassembly DiagramsSection Servicing Notes Location and Function of Controls Group Section GeneralCase ASSY, Holder Assy Section DisassemblyBracket Assy Mechanism DeckOptical PICK-UP Assy LCX-4E Main BoardSetting the Test Mode Section Test ModeGeneral Overall Adjustment Mode Manual ModeHow to set the Manual mode Self-diagnostic mode SELF-DIAGNOSTIC Display ModeEIB KEY Check ModeSound Skip Check Result Display Mode Setting the Key Check modeManual Power Adjustments Section Electrical AdjustmentsReset NV Electrical offset adjustment method Vc PWM Duty H adjustment methodOverall CD and MO adjustment method Resume clear method Overall CD and MO adjustment itemsMZ-E501 Waveforms Section DiagramsMain Board Block DiagramSemiconductor Printed Wiring Board Main Section Side aSide B Printed Wiring Board Main Section Side BOprledgh MZ-E501 2222 IC301 TA2131FL EL IC Block DiagramsIC901 XPC18A32FCR2 IC PIN Function Description MIFVSS3 OprledglXtest OprledrlDSPVSS0 AVS2 AvssAPC DSPVDD0Spcv DSPVDD2DSPVSS1 SpcuVL PWM TEST1, TEST0SSB CLK MCUVSS0TSB SLV CHK LCD STBLCD RST REC LEDMain Section Section Exploded Views5961 Mechanism SectionSection Electrical Parts List MainXPC18A32FCR2 Ver 1.1 Memo MZ-E501 Before change After change How to distinguish the sets¥ Signal path Main Board Main Board + Line Tantalums Schematic Diagram Main /3 See page 9 for IC Block Diagrams IC Block Diagrams IC901 XPC18A32FCR2 Signal C input from the optical pick-up detector IC601 CXD2671-207GA System Control AVS2 Avss DSPVDD2 188,189 Not used open 190 LCD STB 1uF 10% C102 126-246-11 IC XPC18A32FCR2 SWITCH, Tactile VOL− Ver Date Description of Revision Revision History