Sony Ericsson XR-C7500RX service manual IC201, IC250 CXA2510AQ-T4, IC500 BA8270F-E2

Page 33

IC201

LB1930M-TLM

 

 

 

VCC

1

 

 

10

NC

NC

2

BUFFER

 

 

 

IN1

3

CONTROL

MOTOR

9

OUT1

 

 

DRIVE

8

NC

 

 

CIRCUIT

IN2

4

CIRCUIT

7

OUT2

 

S-GND

5

BUFFER

 

6

P-GND

 

 

IC250

CXA2510AQ-T4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBEQ1

PBOUT1

GND

TAPEIN1

 

AUXIN1

 

 

DIREF

 

LINEOUT1

TCH1

NC

MSSW

 

 

 

 

30

29

28

27

 

26

 

 

25

 

24

23

22

21

 

 

 

 

 

 

120∝ /

 

 

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

 

70∝

 

 

 

 

 

 

 

 

OFF/B

 

 

 

 

 

 

 

 

 

 

 

T2

 

 

 

+

–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

MSMODE

 

 

 

–

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NR BIAS

 

 

 

 

 

 

PBFB1

31

 

 

 

X1

 

 

 

 

 

 

MS

19

DRSW

 

 

 

 

 

 

 

 

 

 

 

 

MODE

PBRIN1

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TAPE/AUX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

TAPESW

PBREF1

33

 

F2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

INSW

 

 

 

 

 

 

 

 

 

TAPE EQ

 

 

 

 

PBFIN1

34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

NRSW

 

 

 

 

 

 

 

 

 

FWD/RVS

 

 

 

MODE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCT

35

 

VCT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBGND

36

 

 

 

 

 

 

 

VCC

 

 

 

 

 

MS ON/ 15

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

LPF

 

 

+

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

DETECT

 

 

 

 

 

 

 

 

 

 

 

–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBFIN2

37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

MSOUT

PBREF2

38

 

F1

 

 

 

 

 

 

F3

 

 

 

 

 

 

 

 

 

X1

 

 

 

 

 

 

 

 

 

 

13

DGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBRIN2

39

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBFB2

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

MSTC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–

+

 

 

 

+

 

–

 

 

 

 

 

11

FF

 

 

 

 

 

 

 

T1

 

OFF/B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120∝ /

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

 

 

70∝

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

 

7

 

8

9

10

 

 

 

 

 

 

PBEQ2

PBOUT2

VCC

TAPEIN2

AUXIN2

MSLPF

 

LINEOUT2

 

TCH2

NC

PLAY

 

 

 

 

IC500

 

BA8270F-E2

 

 

BUS ON

1

BUS ON

14

VCC

SWITCH

 

 

 

 

 

 

RST

2

RESET

13

RST

SWITCH

 

 

12

BUS ON

 

 

 

 

 

BATTERY

11

CLK IN

BATT

3

10

BU IN

SWITCH

 

 

 

 

CLK

4

 

 

 

VREF

5

 

 

 

DATA

6

 

9

DATA IN

GND

7

 

8

DATA OUT

33

Page 32 Page 34
Image 33
Page 32 Page 34
Contents XR-C7500R/C7500RX SpecificationsDiagrams Table of ContentsSection Servicing Notes GeneralSection General Setting the clockInstallation Instalación Montering Instalação Reset button Connections Conexiones Anslutning Ligações Connection example Ejemplo de conexiones XR-C7500R/XR-C7500RX AEP, UKXR-C7500RX E Power connection diagram Section Disassembly SUB Panel ASS’YMechanism Deck MG-25G-136 Heat Sink 2P Main BoardSection Assembly of Mechanism Deck HousingARM Suction Gear LDG-FT Lever LDG-A / LDG-BMounting Position of CAPSTAN/REEL Motor M901 Guide CSection Electrical Adjustments Section Mechanical AdjustmentsTorque Measurement Tape Tension MeasurementDolby Level Adjustment Tape Speed AdjustmentTape Deck Section Tuner SectionBlock Diagram TUNER/TAPE Section DiagramsSignal Path MW/LW Tape Play SectionSignal Path Block Diagram Main SectionRemote Block Diagram DISPLAY/KEY Control SectionBUS-ON Block Diagram BUS CONTROL/POWER Supply SectionBUS Audio Tape Play Semiconductor Location Component Side Printed Wiring Board Main Board Component SideSemiconductor Location Conductor Side Printed Wiring Board Main Board Conductor SideXR-C7500R/C7500RX XR-C7500R/C7500RX XR-C7500R/C7500RX XR-C7500R/C7500RX Printed Wiring Board SUB Board Schematic Diagram SUB Board KEY Board Waveforms Main BoardPrinted Wiring Board KEY Board Schematic Diagram KEY Board See page 29 for Waveforms IC Block Diagrams Main Board IC10 IC50 SAA6588T/V2-118IC100 CXD2726Q-4 IC201 IC250 CXA2510AQ-T4IC500 BA8270F-E2 Pin No Pin Name Description IC PIN Function DescriptionXlat Main Board IC600 MB90574BPMT-G-265-BND System Controller Dsplat Accin Stop Loading Eject Brake TUX1 Except E Front Panel Section 54 3-041-003-01 Button LIST/ENTER DSPL. LIST. Enter60 1-694-660-11 Conductive BOARD, Connection 159 158 155 154 157 156 153152 168 151 160 163 Mechanism Deck Section MG-25G-136161 162 164Section Electrical Parts List KEY Metal Chip ResistorRES-CHIP Rotary EncoderKEY Main SWITCH, Tactile with LEDSEEK/AMS + M Ceramic Chip 8PFDouble Layer TantalumDiode DTZ5.6B FilmDiode MA152WA-TX Diode CRZ22 TE85L.SONYLB1930M-TLM TDA7402TRBA09ST-V5 RN5VD33AA-TLR27 216-809-11 Type C Main SUB 503 504 505 501 502506 507 508 507
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