Sony MX-E501 service manual Signal C input from the optical pick-up detector

Page 47

MZ-E501

6-8. IC PIN FUNCTION DESCRIPTION

•IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP)

Pin No.

Pin Name

I/O

Description

 

 

 

 

1

TE

O

Tracking error signal output to the system controller (IC601)

 

 

 

 

2

REXT

I

Connect terminal to the external resistor for ADIP amp control

 

 

 

 

3

WPPLPF

I

Connect terminal to the external capacitor for TPP/WPP low-pass filter

4

VREF

O

Reference voltage output terminal (+1.1V)

 

 

 

 

5

C

I

Signal (C) input from the optical pick-up detector

6

D

I

Signal (D) input from the optical pick-up detector

 

 

 

 

7

D-C

I

Signal (D) input from the optical pick-up detector (AC input)

 

 

 

 

8

IY

I

I-V converted RF signal (IY) input from the optical pick-up detector

9

IX

I

I-V converted RF signal (IX) input from the optical pick-up detector

 

 

 

 

10

JX

I

I-V converted RF signal (JX) input from the optical pick-up detector

11

JY

I

I-V converted RF signal (JY) input from the optical pick-up detector

 

 

 

 

12

A

I

Signal (A) input from the optical pick-up detector

13

A-C

I

Signal (A) input from the optical pick-up detector (AC input)

 

 

 

 

14

B

I

Signal (B) input from the optical pick-up detector

 

 

 

 

15

TON-C

I

Connect terminal to the external capacitor for TON hold

16

CIG

I

Connect terminal to the external capacitor for the low-pass filter of NPP divider

denominator (Not used in this set)

 

 

 

 

 

 

 

17

CDN

I

Connect terminal to the external capacitor for the low-pass filter of CSL divider

denominator (Not used in this set)

 

 

 

 

 

 

 

18

PD-I

I

Light amount monitor input terminal (invert input)

19

PD-NI

I

Light amount monitor input terminal (non-invert input)

 

 

 

 

20

PD-O

O

Light amount monitor output terminal

 

 

 

 

21

ADIP

O

ADIP duplex FM signal (66.15kHz ± 3kHz) output to the system controller (IC601)

22

DVDD

—

Power supply terminal (+1.9V) (digital system)

 

 

 

 

23

SBUS

I/O

SSB serial data input/output with the system controller (IC601)

24

SCK

I

SSB serial clock signal input from the system controller (IC601)

 

 

 

 

25

XRST

I

Reset signal input from the system controller (IC601) “L”: reset

26

OFTRK

I

Off track signal input from the system controller (IC601)

 

 

 

 

27

DGND

I

Ground terminal (digital system)

 

 

 

 

28

BOTM

O

Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller

(IC 601)

 

 

 

 

 

 

 

29

PEAK

O

Peak hold signal output of the light amount signal (RF/ABCD) to the system controller

(IC 601)

 

 

 

 

 

 

 

30

VREF

I

Connect terminal to the external capacitor for the internal reference voltage

 

 

 

 

31

VC

—

Middle point voltage (+1.2V) generation output terminal

32

CCSL2

I

Connect terminal to the external capacitor for TPP/WPP low-pass filter (not used in this set)

 

 

 

 

33

RF OUT

O

Playback EFM RF signal output to the system controller (IC601)

 

 

 

 

34

AGND

I

Ground terminal (analog system)

35~37

EQ, LP, PS

I

Connect terminal to the external capacitor for the RF equalizer

 

 

 

 

38

AVCC

—

Power supply terminal (analog system) (+2.2V)

39, 40

OFC2, OFC-1

I

Connect terminal to the external capacitor for RF AC coupling

 

 

 

 

41

ABCD

O

Light amount signal (ABCD) output to the system controller (IC601)

 

 

 

 

42

FE

O

Focus error signal output to the system controller (IC601)

43

S-MON

O

Servo signal monitor output to the system controller (IC601)

 

 

 

 

44

ADIP-IN

I

ADIP duplex FM signal (66.15kHz ± 3kHz) input terminal, 3 times speed

11

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Page 46 Page 48
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 BoardGeneral Section Test ModeSetting the Test Mode How to set the Manual mode Manual ModeOverall Adjustment Mode Self-diagnostic mode SELF-DIAGNOSTIC Display ModeEIB KEY Check ModeSound Skip Check Result Display Mode Setting the Key Check modeReset NV Section Electrical AdjustmentsManual Power Adjustments Overall CD and MO adjustment method Vc PWM Duty H adjustment methodElectrical offset 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
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