Sony XR-C8220 Bedienungsanleitung

MICROFILM

SERVICE MANUAL

FM/AM CASSETTE CAR STEREO

US Model

E Model

SPECIFICATIONS

XR-C8220

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.

“DOLBY” and the double-D symbol aare trade-

marks of Dolby Laboratories Licensing Corporation.

Model Name Using Similar Mechanism XR-C9100

Tape Transport Mechanism Type MG-25D-136

For RM-X4S (Remote Commander),

please refer to RM-X4S Service Manual

(9-925-698-∏) previously issued.

XR-C8220

– 33 – – 34 –

6-8. SCHEMATIC DIAGRAM – MAIN Section (1/4) – • See page 28 forWaveforms. •See page 47 for IC Block Diagrams.

(Page 35)

(Page 39)

(Page 38)

XR-C8220

– 35 – – 36 –

6-9. SCHEMATIC DIAGRAM – MAIN Section (2/4) – • See page 48 for IC Block Diagrams.

(Page 40)

(Page

38)

(Page

34)

XR-C8220

– 37 – – 38 –

6-10. SCHEMATIC DIAGRAM – MAIN Section (3/4) – • See page 28 for Waveforms. •See page 47 for IC Block Diagrams.

(Page

35)

(Page

39)

(Page 34)

XR-C8220

– 39 – – 40 –

6-11. SCHEMATIC DIAGRAM – MAIN Section (4/4) – • See page 49 for IC Block Diagrams.

(Page

34)

(Page

38)

(Page 36)

(Page 46)

XR-C8220

– 43 – – 44 –

6-13. SCHEMATIC DIAGRAM – PANEL Section – • See page 28 forWaveforms.

(Page 46)

XR-C8220

(Page 32)

6-14. PRINTED WIRING BOARD – SUB/INVERTER Section –

– 45 – – 46 –

6-15. SCHEMATIC DIAGRAM – SUB/INVERTER Section – • See page 28 forWaveform.

(Page 40)

(Page 43)

(Page 31)

(Page 32)

(Page 32) (Page 42)

– 47 –

• IC Block Diagrams

– MAIN Board –

IC10 BU2624FV-E2

PHASE

DET

PRESCALER

MAIN

COUNT

IF COUNT

CTL

20BIT COUNT

SHIFT REGISTER LATCH

REFERENCE

DIVIDER

I/O

CTL

XIN

XOUT

VSS

VDD

FMIN

AMIN

IFIN

IC201 LB1638M

5 6

GND

IN1

VCC

IN2

GND N.C.

OUT2

OUT1

N.C.

CONTROL LOGIC

IC250 CXA2510AQ-T4

–

–+–

–

+–

12345 6 7 8 9 10

2122232627282930

2425

PBFB2

PBRIN2

PBREF2

PBFIN2

PBGND

VCT

PBFIN1

PBREF1

PBRIN1

PBFB1

PBEQ2

PBOUT2

VCC

TAPEIN2

AUXIN2

MSLPF

LINEOUT2

TCH2

PLAY

MSTC

DGND

MSOUT

NRSW

INSW

TAPESW

MSMODE

DRSW

MSSW

TCH1

LINEOUT1

DIREF

AUXIN1

TAPEIN1

PBEQ1

PBOUT1

GND

120µ/

70µ

VCT

120µ/

70µNR

OFF/B

LPF

VCC

DETECT

MS ON/

OFF

MODE

FWD/RVS

TAPE EQ

TAPE/AUX

NR BIAS

MODE

OFF/B

– 48 –

IC301 CXA1946BQ-T6

GAIN12 38

GAIN11 39

IN14 40

IN13 41

IN12 42

IN11

INPUT SW

GAIN134

LOUD VOLUME

8dB STEP VOLUME

1dB STEP TONE FADER

LDLC1

LDHC1

INAO1

VRIN1

VOUT1

TIN1

TCLC1

TCLC11

TCLC12

TCO1

FDIN1

24 FNTO1

23 REO1

VCTBUFF

LATCH

CONTROL

LATCH

GAIN234

LOUD VOLUME

8dB STEP VOLUME

1dB STEP TONE FADER

LDLC2

LDHC2

INAO2

VRIN2

VOUT2

TIN2

TCLC2

TCLC21

TCLC22

TCO2

FDIN2

14 REO2

13 FNTO2

VCTBUFF

SHIFT

ZCDET

IN21 44

IN22 45

IN23 46

IN24 47

GAIN21 48

GAIN22

INPUT SW

18 VCC

17 VCT

16 DATA

15 TIMER

22 CE

21 CLK

20 DGND

19 GND

45k

IC310, 410 TDA8574 (T) IC350 CXA1846BN-T4

REFERENCE

VCCL

INL

SVRL

INML

INMR

SVRR

INR

VCCR

BUFFER

LIFT

AMP

SIGNAL

AMP

LIFT

AMP

SIGNAL

AMP

CL+

CL–

LGND

OUTL

OUTR

RGND

CR–

CR+

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

1dB STEP

VOLUME

8dB STEP

VOLUME

1dB STEP

VOLUME

8dB STEP

VOLUME

VCT

BUFFER

LATCH

SHIFT

LATCH

CONTROL ZC

DET

–

INP 1

INN 1

VCT 1

INAO 1

VRIN 1

OUT 1

N.C.

GND

VCT

VCC

INP 2

INN 2

VCT 2

INAO 2

VRIN 2

OUT 2

DATA

CLK

INIT

– 49 –

IC502 BA3918-V3 IC602 BA8270F-E2

–

OVER VOLTAGE

PROTECT

REGULATOR

12 3 45 6 7 8 9 10 1211

MODE2

MODE1

STB

VDD

AMP

VCC

ANT

COM

GND

7 8

BUS ON

SWITCH

RESET

SWITCH

BATTERY

SWITCH

BUS ON

RST

BATT

CLK

VREF

DATA

GND

VCC

RST

BUS ON

CLK IN

BU IN

DATA IN

DATA OUT

IC650 MSM6656A-687GS-KR1 (US model)

IC650 MSM6656A-689GS-KR1 (E model)

TIMMING

CONTROLLER BEEP TONE

GENARATOR

MELODY

GENARATOR

17 BIT

ADDRESS

COUNTER

17 BIT

MULTIPLEXER

I/O

INTERFACE

ADDRESS

COMMAND

CONTROLLER

1M BIT ROM

EDITING ROM &

ADDRESS ROM

CONTAINS 22KBIT

DATA

CONTROLLER ADPCM

SYNTHESIZER

PCM

SYNTHSIZER

12 BIT

DAC

LPF

OSC

7CH

RESET

NAR

AOUT

GND

BUSY

16/SD

15/SI

VDD

CMD

12/PoRT0

13/PoRT1

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