Sony MX-E501 Oprledgl, Xtest, Oprledrl, MIFVSS3, Set Key, Rec Key, Avss, Vdiosc, Osci, Osco, Asyo

Page 26

MZ-E501

•IC601 CXD2671-205GA (SYSTEM CONTROL)

Pin No.

Pin Name

I/O

Description

1

OPR_LED_G_H

O

High intensity green LED control (open)

 

 

 

 

2

OPR_LED_G_L

O

Low intensity green LED control (open)

 

 

 

 

3

XTEST

I

Input terminal for the test mode detection

 

 

 

 

4

OPR_LED_R_H

O

High intensity red LED control (open)

5

OPR_LED_R_L

O

Low intensity red LED control (open)

 

 

 

 

6

MCUVDD0

—

Power supply (for microcomputer block)

7

MIFVSS3

—

Ground (for microcomputer I/F)

 

 

 

 

8

XRST

I

System reset terminal

 

 

 

 

9

S MON

I

Servo signal monitor

10

VB MON

I

Voltage monitor of UNREG power supply

 

 

 

 

11

CHG MON

I

Not used (connected to ground)

12

VREF MON

I

Clear reference voltage monitor

 

 

 

 

13

SET KEY 1

I

Set key detection 1

 

 

 

 

14

SET KEY 2

I

Not used (connected to RMC VDD)

15

VL MON

I

VL voltage monitor

 

 

 

 

16

HIDC MON

I

Not used (connected to ground)

17

WK DET

I

Set KEY WAKE detection

 

 

 

 

18

REC KEY

I

Not used (connected to RMC VDD)

19

HALF LOCK SW

I

Signal input for OPEN SW detection

 

 

 

 

20

RMC KEY

I

Remote control key detection

 

 

 

 

21

AVDD

—

Power supply (for the analog circuit block)

22

AVSS

—

Ground (for the analog circuit block)

 

 

 

 

23

VDIOSC

—

Power supply (for OSC cell)

24

OSCI

I

Input to the X’tal oscillator circuit

 

 

 

 

25

OSCO

O

Output from the X’tal oscillator circuit

 

 

 

 

26

VSIOSC

—

Ground (for OSC cell)

27

DAVDD

—

Built-in DAC VCC

 

 

 

 

28

VREFL

—

Built-in DAC VREF (L-ch)

29

AOUTL

O

Built-in DAC (L-ch) output

 

 

 

 

30

AOUTR

O

Built-in DAC (R-ch) output

31

VREFR

I

Built-in DAC VREF (R-ch)

 

 

 

 

32

DAVSS

—

Ground (for the built-in DAC)

 

 

 

 

33

ASYO

O

Playback EFM duplex signal output

34

ASYI

I

Playback EFM comparison slice level input

 

 

 

 

35

AVD1

—

AVDD

36

BIAS

I

Bias input for the playback EFM comparison

 

 

 

 

37

RFI

I

Playback EFM RF signal input

 

 

 

 

38

AVS1

—

AVSS

39

PCO

O

Phase comparison output for the playback EFM system master PLL

 

 

 

 

40

PDO

O

Phase comparison output for the analog PLL

41

FILI

I

Filter input for the playback EFM system master PLL

 

 

 

 

42

FILO

O

Filter output for the playback EFM system master PLL

43

CLTV

I

Internal VCO control voltage input for the playback EFM system master PLL

 

 

 

 

44

PEAK

I

Peak hold signal input of the light amount signal

 

 

 

 

45

BOTM

I

Bottom hold signal input of the light amount signal

46

ABCD

I

Light amount signal input

 

 

 

 

26

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Contents Specifications MZ-E501Diagrams Table of ContentsDisassembly Exploded ViewsSection Servicing Notes Section General Location and Function of Controls GroupSection Disassembly Case ASSY, Holder AssyMechanism Deck Bracket AssyMain Board Optical PICK-UP Assy LCX-4EGeneral Section Test ModeSetting the Test Mode How to set the Manual mode Manual ModeOverall Adjustment Mode SELF-DIAGNOSTIC Display Mode Self-diagnostic modeSetting the Key Check mode KEY Check ModeSound Skip Check Result Display Mode EIBReset NV Section Electrical AdjustmentsManual Power Adjustments Overall CD and MO adjustment method Vc PWM Duty H adjustment methodElectrical offset adjustment method Overall CD and MO adjustment items Resume clear methodMZ-E501 Section Diagrams WaveformsBlock Diagram Main BoardPrinted Wiring Board Main Section Side a SemiconductorPrinted Wiring Board Main Section Side B Side BOprledgh MZ-E501 2222 IC Block Diagrams IC301 TA2131FL ELIC901 XPC18A32FCR2 IC PIN Function Description Oprledrl OprledglXtest MIFVSS3DSPVDD0 AVS2 AvssAPC DSPVSS0Spcu DSPVDD2DSPVSS1 SpcvMCUVSS0 TEST1, TEST0SSB CLK VL PWMREC LED LCD STBLCD RST TSB SLV CHKSection Exploded Views Main SectionMechanism Section 5961Electrical Parts List Main SectionXPC18A32FCR2 Ver 1.1 Memo MZ-E501 How to distinguish the sets Before change After change¥ 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− Revision History Ver Date Description of Revision
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