Sony Ericsson CDX-M620 service manual IC305 TDA7406TR, IC62, 901 RRX9000-0601

Page 55

CDX-M620/M670

IC305 TDA7406TR

ACINRL ACINRF

ACINRR

OUTLF

OUTLR

OUTRF

OUTRR

OUTSWL

OUTSWR

OUTSSL

OUTSSR

33 32 31

30

29

28

27

26

25

24 23

MIXER

MONO-

MONO-

MONO-

MONO-

MONO-

MONO-

FADER

FADER

FADER

FADER

FADER

FADER

ACINLF

34

FRONT

SUBWOOFER

SWINR

35

ACIN

OUTPUT

+PHASE

SWINL

36

REAR

CONTROL

SELECTOR

ACOUTR

37

MAIN

SW

ACOUTL

38

SECOND

CREF

39

LP

22

VDD

VOICE

-BUS

21

SCL

BANDPASS

20

SDA

HP

IIC

BASS

SUPPLY

19

GND

TREBLE

HIGH-CUT

18

EXT-ATT

VOLUME

CONTROL

S&H

PULSE

FORMER

SOFTMUTE

DIGITAL

25kHz

QUAL

17

QUAL

COMPANDER

LP

LOUDNESS

LOUDNESS

DEMODULATOR

MULTIPATH

16

MPOUT

MUX

40

DETECTOR

15

MPIN

IN-GAIN

+STEREO ADJUST

+

+STEREO BLAND

BEEP

D/A

14

S-METER

IN-GAIN

MUTE

PILOT

CONVERTER

+AUTO ZERO

CANCELATION

PIL DET

MAIN SOURCE

MIXING

SECOND SOURCE

SELECTOR

SELECTOR

SELECTOR

MD1

41

MAIN

PLL

MD1G

42

80kHz

13

MPX

INPUT

LP

MULTIPLEXER

FM

MD2

43

PHONO

MD2G

44

AM/FM

MAIN

CH0

AUX

AM

12

AMIF

NOISE BLANKER

1

2

3

4

5

6

7

8

9

10

11

SEL

SER

FD1L+

FD1L–

FD1R+

FD1R–

FD1L+

FD1L–

FD1R+

FD1R–

AM

IC62, 901 RRX9000-0601

V IN

GND

V IN

V AGC

INS GND VCO NC

16

15

14

13

12

11

10

9

INPUT

320kHz

320kHz

NOISE

PULSE

SLAGE

/500kHz

SUPPRESSION

COUNTER

AGC

PULSE

BANDGAP

FORMER

REFERENCE

1

2

3

4

5

6

7

8

L IN GND

V STAB

VCC

NC

NC

VPO

NC

55

Image 55

Contents CDX-M620/M670 SpecificationsUS model Service NotesAEP/UK model Diagrams Table of ContentsDisassembly Phase AlignmentUS Model AEP, UK, E Model Section GeneralUS, AEP, UK, E Model US Model AEP, UK, E Model CDX-M620/M670 CDX-M620/M670 US, AEP, UK, E Model CDX-M620/M670 Connection CDX-M620/M670 AEP, UK, E Model Connection CDX-M620/M670 CD Mechanism BLOCK, Front Panel KEY Assy Section DisassemblyFront Panel Assy Inoperative Front Panel Assy NormalMotor Block ASSY, CAM R Assy SUB Panel CD SUB AssyHeat Sink Main BoardLever Section Chassis T SUB AssyShaft Roller Assy Servo BoardOptical PICK-UP Block Floating Block AssyARM A-L ASSY, ARM B-L Assy Section Phase AlignmentCAM L Alignment Between ARM A-L Assy and ARM B-L Assy Motor BlockCAM R ARM A-R ASSY, ARM B-R AssyIC PIN Descriptions Section DiagramsRfdc IC5 CXP84640-072Q CD System Control Servo Board Self SW SYS RST Open KEY 4V SEL IC702 HD643255A36F SUB System Control Main Board Circuit Boards Location Ch same as L-ch Block Diagram CD SectionDisplay Section Block Diagram Tuner SectionBlock Diagram Display Section Waveforms Main Board Waveforms Servo BoardPrinted Wiring Boards CD Mechanism Section IC1 IC5 IC7 IC B/D IC B/D Printed Wiring Boards Main Section CDX-M620/M670 IC B/D IC B/D CDX-M620/M670 CDX-M620/M670 Printed Wiring Board SUB CD Section CDX-M620/M670 LED5 LED14 LED6 LED15 LED7 LED16 Printed Wiring Board KEY SectionSchematic Diagram KEY Section Printed Wiring Board Display Section IC B/D IC102 RN5VD53AA-TL IC Block DiagramsIC62, 901 RRX9000-0601 IC305 TDA7406TRSUB CD Board Section Exploded ViewsChassis Section Cover64 #2 CAM Section106 105 107 Main Board Section113 108 114 107 112 110 115 109 111 104164 165 167 163 162 159 161 160 Front Panel KEY Assy Section171 172 173 170 174 169 168 166Front Panel Dspl Assy Section 262 CD Mechanism MG-383Z-121//K 254253 257 259 251 266 265 264 256 255 263 261 260 267 258312 313 305303 311 309 302 CD Mechanism MG-383Z-121//K 304 301 306 307 308 310 314309 A-3307-422-A Chassis M Complete Assy 360 354 355 361 CD Mechanism MG-383Z-121//K 351357 352 359 356 358 353Section Electrical Parts ListDisplay Display Disc in SW KEY KEY Limit SW Elect MainMain BOARD, Complete AEP,UK,E BuzzerRef. No Description Remark C306 162-965-11 CONNECTOR, Flexible 11P PIN, Connector 16PPLUG, Connector BUS Control PIN, Connector 6PTransistor KRA103S COIL, ChokeInductor Transistor KRC103SEXCEPTM670US Short Description Remark R389 216-829-11 Servo BOARD, Complete Capacitor Main ServoTHERMISTOR, Positive THERMISTOR, Positive TunerTransistor 2SB1197K-T-146-R Resistor ServoCN3 Jumper ResistorServo SUB CD 401 402 404 403 407 408 409 405 406 410 411 412 413414 Revision History