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4-3

4-3

BLOCK DIAGRAM OF INTEGRATED CIRCUIT

SERVO PROCESSOR SAA7379HL

handbook, full pagewidth

DC OFFSET COMPENSAT ION

IREF

SCL

SDA
RAB

SILD

VREFO

D1

9

6

VDDA1

7

VDDA2

16

8

52

54
55

76

77
78
79

19

18
49

50

36
37

38

59

58

60

56

51

40

71 72

73

74 75

34

35

33

28

31

30

32

29

21

24

25

26

23

22

27

42

43

44

46

47

48

45

62

39

68

67

15

66

65

64

80

57

53

10

11

12

13

14

34

21

D2

D3

D4

R1

R2

MONITOR

ADC

MONITOR

5

VSSA1

17

VSSA2

20

VSSA3

SENSE

LPOWER

LASER

LASER

RA

EF
SCLK
WCLK
DATA

MOTO1

MOTO2

CFLAG

DOBM

FO

SL

CSLICE

LASER POWER

CONTROL LOGIC

EXFILTER

ANTI ALIAS

BIAS

GENERATOR

D1 TO D4

SUM

HIGH-PASS FILTER

CONTROL FUNCTION

OUTPUT
STAGES

MOTOR

CONTROL

ERROR

CORRECTOR

EBU

INTERFACE

SERIAL

DATA

INTERFACE

BUFINR
BUFINL
BUFOUTR
BUFOUTL

MBL436

HEADPHONE

BUFFERS

DACVpos
DACRP
DACRN
DACLP
DACLN
DACVref
DACGND

DEM

DAC

SCLI

WCLI

SDI

SERIAL

DATA

(LOOPBACK)

INTERFACE

FLAGS

DATA  SLICER AND

THRESHOLD

CONTROL

DIGITA L

PLL

EFM

DEMODULAT OR

SRAM

RAM

ADDRESSER

SUBCODE

PROCESSOR

SAA7824

V1

VSSD1

41

70

VDDD2

61

VSSD2

63

VDDD1 VDDD3

69

VSSD3

V2

BUFGND

BUFVpos

V3 V4 V5

LKILL

RKILL

AUDIO

PROCESSOR

PEAK

DETECT

KILL

VERSAT ILE PINS

INTERFACE

DISC ADC

CONTROL

PA RT

MICROCONTROLLER

INTERFACE

TEST1
TEST2
TEST3
TEST4

TEST

OSCIN

OSCOUT

CLK16

CLK4/12

TIMING

CDTRDY

CDTDAT A

CDTCLK

CD TEXT

INTERFACE

SFSY

STAT US

SBSY

SUB

RCK

RESET

INTERFACE

CONTROL

DECODER

MICRO-

CONTROLLER

INTERFACE

VOLTA GE

BUFFER

HF AND LF CAPTURE

SAA7379

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PRESCALER

PROGRAMMABLE

COUNTER

STABILIZER

WINDOW

DETECTOR

LAST-STATION

MEMORY

AM/FM

INDICATOR

IN-LOCK

DETECTOR

FM

DETECTOR

PILOT

DETECTOR

CHARGE

PUMP

MULTIPLEXER

CRYSTAL

OSCILLATOR

SHIFT REGISTER

FM

FRONT-END

FM

OSCILLATOR

FM
IF2

FM
IF1

FM

MIXER

SEQUENTIAL

CIRCUIT

STATUS

REGISTER

AM

FRONT-END

AM

OSCILLATOR

AM

DETECTOR

V/I

CONVERTER

AM

MIXER

AM

IF

AGC

AFC

hard mute

level

PLL

DECODER

MATRIX

SDS

MUTE

up

down
level

RFGND

DATA

US-CLOCK

TE-ENABLE

FM-RFI

VSTAB(A)
VSTAB(B)

AM-RFI

XTAL

RIPPLE

25

23
1

26

30

31

2

AGC

AM-IFI/O2

AM-MIXER

AMOSC

AM-IFI1

6

40

41

36

44

8

22

32

20

19

13

15

14

9

12

24

16

18

17

39

37

33

35

3

5

38

43

42

28

27
29

34

7

21

10

11

4

MO/ST

AFRO

MUTE

AFC(n)
AFC(p)
AFC

VCO

LFI

PILFIL

AFLO

stereo

stereo

mono

38 kHz

19 kHz

FM-IFI1

FM-IFI2

FM-IFO1

FM-MIXER

FMOSC

FM-RFO

VCC1

VDDD

TEA5757;

TEA5759

FM

AM

DGND

P1
P0

TUNE

RFGND

MPXI

AFO

VCC2

IFGND

FSI

FMDEM

MHA111

BLOCK DIAGRAM OF INTEGRATED CIRCUIT

SELF TUNED RADIO TEA5757

Содержание MC150/21

Страница 1: ...ce tools 2 1 Service measurement setup 2 2 Connections and controls 3 1 3 2 Disassembly diagram 4 1 Pin description of ICs 4 2 4 4 Set block diagram 5 1 Set wiring diagram 5 2 LCD BOARD circuit diagram 6 1 layout diagram 6 2 HEADPHONE BOARD circuit diagram 6 1 layout diagram 6 2 KEY BOARD circuit diagram 6 1 layout diagram 6 2 POWER BOARD circuit diagram 6 1 layout diagram 6 3 CD BOARD circuit dia...

Страница 2: ...llo stesso potenziale che quello della massa delápparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used Safety components are marked by the symbol i Le norme di si...

Страница 3: ...0 Hz Battery remote 3 V R6 x 2 Power consumption normal Standby 3 W Dimension W x H x D 156 x 222 x 216 mm Weight without speakers 2 95 Kg AMPLIFIER Output power mains 2 x 5 W RMS Speaker impedance 2 x 3 ohm Frequency response within 3dB 60 Hz 14 kHz TUNER FM SECTION 87 5 108 MHz IF frequency 10 7 MHz 0 02 MHz Sensitivity 22 dBf at 26dB S N Selectivity 300kHz 40 dB IF rejection 65 dB Image rejecti...

Страница 4: ...Ω Aerial replacement Capacitor R 50Ω Bandpass 250Hz 15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage RF Generator e g PM5326 Ri 50Ω Low pass filter 22kHz L R LEVEL METER e g Sennheiser UPM550 with F...

Страница 5: ...t fully for optimum reception C Speakers Connection Front Speakers Connect the speaker wires to the SPEAKERS terminals right speaker to RIGHT and left speaker to LEFT coloured marked wire to and black unmarked wire to Fully insert the stripped portion of the speaker wire into the terminal as shown Notes For optimal sound performance use the supplied speakers Do not connect more than one speaker to...

Страница 6: ...ayback à á fast rewinds forwards the tape STOP OPEN stops the tape opens the tape compartment PAUSE pauses recording or playback 7 VOLUME 3 4 VOL 3 4 adjusts volume level adjusts the hours and minutes for clock timer functions 8 iR SENSOR infrared sensor for remote control 9 TIMER CLOCK activates deactivates or sets the timer function sets the clock function views the clock time 0 REPEAT SHUFFLE r...

Страница 7: ... or coloured red Do not connect either wire to the earth terminal in the plug marked E or e or coloured green or green and yellow Before replacing the plug cover make certain that the cord grip is clamped over the sheath of the lead not simply over the two wires Copyright in the U K Recording and playback of material may require consent See Copyright Act 1956 and The Performer s Protection Acts 19...

Страница 8: ...intenance Use only normal IEC I tape for recording Apply a piece of adhesive tape over the missing tab space GENERAL The system does not react when buttons Remove and reconnect the AC power plug and are pressed switch on the system again Sound cannot be heard or is of poor Adjust the volume quality Disconnect the headphones Check that the speakers are connected correctly Check if the stripped spea...

Страница 9: ...AM A To remove Rear Cabinet B To remove CD Tray C To remove Main Board D To remove CD Board E To remove Tape Deck F To remove LCD Board G To remove Cassette Key Plate H To remove Transformer Holder 2 2 4 3 2 2 2 2 2 5 3 4 5 4 3 ...

Страница 10: ...eft input BUFGND 33 I audio buffer ground LKILL3 4 O KILL output for left channel con urable as open drain RKILL3 5 O KILL output for right channel con urable as open drain N C3 6 O No connection N C3 7 O No connection N C3 8 I No connection CFLAG3 9 O correction g output open drain VSSD1 40 SUP digital ground1 VDDD1 41 SUP digital supply voltage1 SDI 42 I serial data input loopback WCLI 43 I word...

Страница 11: ...CLK16 CLK4 12 TIMING CDTRDY CDTDATA CDTCLK CD TEXT INTERFACE SFSY STATUS SBSY SUB RCK RESET INTERFACE CONTROL DECODER MICRO CONTROLLER INTERFACE VOLTAGE BUFFER HF AND LF CAPTURE SAA7379 This text is here in force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader This text is here inThis text is here in rce landscape pages to be rotated correctly when brows...

Страница 12: ...ENABLE 29 bus write enable input P0 30 programmable output port P0 P1 31 programmable output port P1 AFC 32 450 kHz LC circuit FM IFI2 33 FMIF input 2 input impedance typical 330 Ω VSTAB B 34 internal stabilized supply voltage B FM IFO1 35 FMIF output 1 output impedance typical 330 Ω AM IFI O2 36 input output to IF Tank IFT output current source FM IFI1 37 FMIF input 1 input impedance typical 330 ...

Страница 13: ...SET BLOCK DIAGRAM 5 1 5 1 ...

Страница 14: ...5 2 5 2 SET WIRING DIAGRAM ...

Страница 15: ...6 1 6 1 CIRCUIT DIAGRAM LCD HP KEY RECTIFIER BOARD ...

Страница 16: ...6 2 LAYOUT DIAGRAM LCD BOARD COMPONENT LAYOUT 6 2 SMD LAYOUT LAYOUT DIAGRAM HEADPHONE BOARD COMPONENT LAYOUT SMD LAYOUT LAYOUT DIAGRAM KEY BOARD COMPONENT LAYOUT SMD LAYOUT ...

Страница 17: ...6 3 LAYOUT DIAGRAM POWER BOARD COMPONENT LAYOUT SMD LAYOUT 6 3 ...

Страница 18: ...7 1 CIRCUIT DIAGRAM CD BOARD 7 1 ...

Страница 19: ...7 2 7 2 LAYOUT DIAGRAM CD BOARD COMPONENT LAYOUT LAYOUT DIAGRAM CD BOARD SMD LAYOUT ...

Страница 20: ...CIRCUIT DIAGRAM MAIN BOARD 8 1 8 1 ...

Страница 21: ...CIRCUIT DIAGRAM MAIN BOARD TUNER PART 8 2 8 2 ...

Страница 22: ...8 3 8 3 LAYOUT DIAGRAM MAIN BOARD COMPONENT LAYOUT LAYOUT DIAGRAM MAIN BOARD SMD LAYOUT ...

Страница 23: ...DESCRIPTION QUANTITY SCREW LIST 4 8 7 6 27 13 1 9 12 26 26 24 17 24 11 14 16 21 19 22 23 18 22 ITEM 28 13 6 29 SET EXPLODED VIEW DIAGRAM 9 1 9 1 ...

Страница 24: ...21 Note Only these parts mentioned in the list are normal normal service parts 29 9940 000 00618 TAPE PCB ASS Y ELECTRICAL PARTSLIST 1707 9940 000 00389 REC SWITCH 18PIN 7705 9940 000 00388 IC D7312CP PREAMPLIFIER D407 9940 000 00376 CH VARIABLE CAP DIODE BB804 D408 9940 000 00376 CH VARIABLE CAP DIODE BB804 F701 9940 000 00384 FUSE PTU 1A 250V F702 9940 000 00385 FUSE PTU 2A 250V HP800 9940 000 0...

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