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3

3

SET BLOCK DIAGRAM

Electric Selector & Volume

PT231 3

Pre-Amp

RC455 8

Pre-Amp

RC455 8

LCD Display

P0.3/T0OUT/T0PWM

I/O Port and Interrupt Control

SAM88RC Core

48K-byte

ROM

2064-byte

Register File

Port 8

Low Voltage

Reset

P3.3/SI0

AMIF

AVDD

P8.0/SEG7
P8.1/SEG6

P8.2/SEG5

P8.3/SEG4

P8.4/SEG3

P8.5/SEG2

P8.6/SEG1
P8.7/SEG0

LVREN

8-Bit Timer/

Counter0

P0.2/T0CAP
P0.1/T0CLK

8-Bit Timer/

Counter1

P0.4/T1CLK
P0.5/T1OUT

16-Bit Timer/

Counter2

P0.6/T2CLK
P0.7/T2OUT

SIO 1

P3.4/SCK1

P3.5/SO1

P3.6/SI1

Basic Timer

Watchdog

Timer

Watch Timer

P3.0/BUZ

LCD Driver/

Controller

COM0-3

P8.7-P4.0/SEG0-39

BIAS

VLC0-VLC2

PLL

Synthesizer

VCOAM

VCOFM

EO0/EO1

IF Counter

FMIF

8-Bit ADC

P2.0-P2.3/AD0-AD3

XIN

XOUT

OSC

SIO 0

P3.1/SCK0

P3.2/SO0

Port 7

Port 6

Port 5

Port 4

P4.0/SEG39

P4.1/SEG38

P4.2/SEG37

P4.3/SEG36

P4.4/SEG35

P4.5/SEG34

P4.6/SEG33

P4.7/SEG32

Port 3

P3.0/BUZ

P3.1/SCK0

P3.2/SO0

P3.3/SI0

P3.4/SCK1

P3.5/SO1

P3.6/SI1

P3.7

Port 2

P2.0/AD0

P2.1/AD1

P2.2/AD2

P2.3/AD3

P2.4

P2.5

P2.6

P2.7

Port 1

P1.0/INT0

P1.1/INT1

P1.2/INT2

P1.3/INT3

P1.4/INT4

P1.5/INT5

P1.6/INT6

P1.7/INT7

Port 0

P0.0

P0.1/T0CLK

P0.2/T0CAP

P0.3/T0OUT/T0PWM

P0.4/T1CLK

P0.5/T1OUT

P0.6/T2CLK

P0.7/T2OUT

RESET

P1.0-P1.7/
INT0-INT7

CE

TEST1
TEST2

TEST3 VDD

VDDPLL0
VDDPLL1

VSS
VSSPLL

P5.0/SEG31

P5.1/SEG30

P5.2/SEG29

P5.3/SEG28

P5.4/SEG27

P5.5/SEG26

P5.6/SEG25

P5.7/SEG24

P6.0/SEG23

P6.1/SEG22

P6.2/SEG21

P6.3/SEG20

P6.4/SEG19

P6.5/SEG18

P6.6/SEG17

P6.7/SEG16
P7.0/SEG15

P7.1/SEG14

P7.2/SEG13

P7.3/SEG12

P7.4/SEG11

P7.5/SEG10

P7.6/SEG9

P7.7/SEG8

MCU

DSC-7900E

LCD Driver

P 6523

T

IN1

MUTE

ST-BY

IN2

OUT1+
OUT1-

OUT2+

OUT2-

PW-GND

IN3

IN4

OUT3+

OUT3-

OUT4+
OUT4-

PW-GND

PW-GND

AC-GND

SVR

TAB

S-GND

Vcc1

Vcc2

N.C.

Power Amplifier

TDA7386

PW-GND

F/ L

F/ R

R/R

R/L

LCD Data

LCD Clock

LCD CE

Mute

Line-Output

R/R

R/L

F/ L

F/ R

R/R

R/ L

F/ L

F/ R

R/ R

R/ L

Tuner Module

CET-7001

Tuner R

Tuner L

4

12

RF AGC & EQ

Control

F ocus OK Detect

Defect Detect Mirror

G en

Center
Voltage

APC. Laser

Control &

LPC

Trac king Servo Loop
- Gain & P hase

Compensation

- Track J um p
- Offset Adjus t
- T ZC G en.

Tracking Error

(RW )

I/V AMP

RF & F ocus

E rror (CD-RW )

I/V A MP

Hardware Logic
- Auto-Sequencer
- F ast Search
- F ebias , Focus Servo,

Tr acking Offset A DJ .

- Tracking Balance & Gain

A djust

- Interruption Detec t
- EF M Muting S ystem

S led Servo &

Kick G en

Spindle

S erv o LPF

E FM

Comparator

Micom Data Interface Logic Decoder

Focus Servo Loop
- Gain & P hase

Compensation

- F ocus Search
- O ffset Adjus t
- F ZC G en.

E QO

PD

LD

LPFT

TEIO

TZ C&
SST OP
ATS C

TEO

TE M

SLP

SLO

SLM

FEO

FE M

SPDLO

SPDLM

5

45

46

44

43

6

7

8

9

10

11

14

13

15

16

17

19

18

20

22

21

24

23

30

29

25

26

27

28

29

36

33

34

35

37

38

39

41

40

42

47

48

1

2

3

EF MI

DCC I

DCC0

M CP

DCB

VCC/

VDD

FRSH

F SET

F LB

FG D

F SI

TG U

RF Amplifier & Servo System

S1L9226

Subco de Sync

Subco de_Q Data

Internal Status

Sub code_ Q Clock

MCU D ata

MCU C lock

MCU L atch

System Reset

MCU L atch

MCU Data

MCU Clock

MCU Latch

System Reset

In ternal Stat us

EMF output

Sled run away inhibit

88.2KHz input terminal

Lev el
shift

Regulator

Mute

+

10k

10k

50k

10k

10k

1

2

3

4

5

6

8

9

10

11

12

13

15

16

17

18

19

20

21

22

23

24

25

26

27

28

10k

TSD

+

Level
shift

Level
shift

Level

shift

10k

10k

10k

10k

10k

+

+

7

14

+

COMP

Lev el
s hift

FIN

(GND)

FIN

(GND)

2. 5V

Servo Driver

IP4001

Pick Up

OPTIMA-725 C2

Focus Output

Tracking Output

Focus Output

Tracking Output

Power Supply

DC 11~16V

Gro und

DC 3.3V

DC 3.3V

DC 8V

DC 8V

MCU DC 5V

MCU DC 5V

MCU D C 5V

ACC

RDS DC 5V

DC 11~16V

Tuner Power

Controlled Power

Tuner Power

Key Matrix

CD D ESP

S5L9291

DPLL

CLV

Servo

LOCK
SMEF

SMON
SMDP
SMDS
WDCK

TESTV

LOCK
SMEF

SMON
SMDP
SMDS
WDCK

EFMI

VCO1LP
VCO2LP

Timing

Generator

Micom

Interface

WFCK

RFCK

C4M

XIN

ISTAT

MLT

MDAT

MCK

MUTE

Subcode

Out

EFM

Demodulator

ECC

16K

SRAM

Address

Generator

SQCK
SBCK

SOS1
SQDT
SBDT

Interpolator

I/O

Interface

Encoder

Decoder

DRAM

Interface

JITB

LPF

PWM

AD9 - AD0

D3 - D0

CAS1 - CAS0

RAS
WE

LCHOUT
RCHOUT

VHALF

VREF

1-bit
DAC

Digital

Out

Digital

Filter

C2PO

DATX

CD-ROM Decoder

DAC I/F

Memory Management Unit

Host Interface

Host MCU

DRAM Controller

4M x 4 bits DRAM

ckgUnit

DSP

MP3 Decoder

S5L9276

16M DRAM

C2 Pointer Input

Data from DSP

BC LK from DSP
LRCK from DSP

Data to DSP

Audio C lock to DSP

BC LK to DSP
LRCK to DSP

Data to MCU
Interrupt to MCU

MCU Data

MCU Clock
MCU Latch

Syst em Reset

......

DC 3.3V

Содержание CMR500

Страница 1: ...Service Aids Safety Instruction etc 1 4 to 1 5 Preparations Controls 1 6 to 1 9 Maintenance Troubleshooting 1 10 Disassembly Instructions Service positions 2 Set Block diagram 3 Set Wiring diagram 4 Key Board 5 Servo Board 6 Main Board 7 Set Mechanical Exploded view parts list 8 CMR500 ...

Страница 2: ...w measurable limits 60 dB AM MW Radio Frequency range 522 1620 kHz Europe mode Usable sensitivity S N 20dB 30 dBμ FM Stereo Radio Frequency range 87 5 108 0 MHz Europe mode Usable sensitivity Frequency response Stereo separation Image response ratio IF response ratio Signal noise ratio 8 dB μ 30 Hz 15kHz 30dB 1kHz 50dB 70dB 55dB 65 0 74 0 MHz OIRT mode General Power supply Maximum power output Con...

Страница 3: ...ltmeter e g PM5326 250Hz 15kHz e g 7122 707 48001 e g PM2534 S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz DUT L R LEVEL METER e g Sennheiser UPM550 with FF filter S N and...

Страница 4: ... SOLDER WICK 4822 321 40042 e g A PAIR OF TWEEZERS HEATING HEATING SOLDERING IRON SOLDER WICK CLEANING PRECAUTIONS COPPER TRACK IRON CORRECT SOLDERING IRON SOLDERING CHIP COMPONENT EXAMPLES CORRECT IRON SOLDERING NO e g A PAIR OF TWEEZERS SLODERING IRON SLODER SLODERING TIME SLODERING IRON Φ0 5 0 8mm 3 secretary side PRESSURE PRESSURE SOLDER Φ0 5 0 8mm A B C B A HANDLING CHIP COMPONENTS ...

Страница 5: ...e potentiaal AVVERTIMENTO Tutti IC e parecchi semi conduttori sono sensibili alle scariche statiche ESD La loro longevita potrebbe essere fortemente ridatta in caso di non osservazione della piu grande cauzione alla loro manipolazione Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell apparecchio tramite un braccialetto a resistenza Assicurars...

Страница 6: ...PREPARATIONS Wiring Diagram 1 6 Battery 12V yellow ACC red Auto Antenna blue Ground black Antenna Fuse 15A Connector ISO connector Rear Line out Rear Gray ...

Страница 7: ...ing the RESET button will erase the clock setting and stored stations Panel Open Trackseek Radio tune Press to tune in a preset station Hold for more than 2 seconds to store station Radio preset Power ON OFF Radio local distant FM stereo mono Loudness SRC SEARCH PWR DISP MUTE DN VOL UP AMS SEARCH Radio Rotate the knob to adjust volume level Push to select VOL BAS TRE BAL FAD Rotate the knob to adj...

Страница 8: ...ing upward Insert the battery holder into the remote control 1 Pull out the battery holder while pressing the stopper Replacing the lithium battery of remote control unit When the operation range of the card remote control becomes short or no Properly replace the lithium battery with a new one Make sure the battery polarity replacement is correct CR 2025 WARNINGS REMOTE CONTROLS Store the battery ...

Страница 9: ...seconds each Hold more than 2 seconds the 6 strongest available station will be automatically saved in the memory of preset button AMS Auto Memory Store SEARCH Press DISP button time displays Press again more than 2 seconds time display blinks Rotate the knob clockwise to set hours Rotate the knob anticlockwise to set minutes SET CLOCK DN VOL UP DISP Press the button more than 2 seconds to enter m...

Страница 10: ...SEL button once again And rotate the knob to set the tenth digit of the track number Press SEL button again more than 0 5 seconds to play the track IF your desired track number is more than 100 Rotate the knob to select the hundredth digit and press SEL button to confirm Rotate the knob to select the tenth digit and press SEL button to confirm Rotate the knob to select the first digit and press SE...

Страница 11: ...in the correct direction and the label side up Clean disc or change another disc Disc is inside but no sound Much noise in broadcasts Station is too far or signals are too weak Select other stations of higher signal level Preset station lost Battery cable is not correctly connected Connect the battery cable to the terminal that is always live Disc sound skips tone quality is low Disc is dirty or d...

Страница 12: ...ront Cabinet Remove 2 pcs screw from front cabinet Remove the screw on the left side of the cabinet Loosen 8 screws to remove heatsink top cover bottom cover Remove the 2 pcs screw to dismantle the frame Remove 6 pcs screw on the main board Pull out FPC wire Remove the two connectors from the mainboard Remove the 2 pcs screw to dismantle the frame Remove the screw on the right side of the cabinet ...

Страница 13: ...2 2 DISMANTLING INSTRUCTIONS 2 2 Service Position A Service Position B Service Position C Service Position D ...

Страница 14: ...m p Offset Adjust TZC Gen Tracking Error RW I V AMP RF Focus E rror CD RW I V A MP Hardware Logic Auto Sequencer Fast Search Febias Focus Servo Tracking Offset A DJ Tracking Balance Gain A djust Interruption Detect EFM Muting S ystem S led Servo Kick Gen Spindle S ervo LPF E FM Comparator Micom Data Interface Logic Decoder Focus Servo Loop Gain P hase Compensation Focus Search Offset Adjust FZC Ge...

Страница 15: ...4 4 SET WIRING DIAGRAM ...

Страница 16: ...6 1 6 1 SERVO BOARD TABLE OF CONTENTS Circuit Diagram 6 2 PCB Layout 6 3 6 4 Electrical Parts List ...

Страница 17: ...6 2 6 2 SERVO BOARD CIRCUIT DIAGRAM ...

Страница 18: ...6 3 6 3 SERVO BOARD LAYOUT DIAGRAM TOP VIEW SERVO BOARD LAYOUT DIAGRAM BOTTOM VIEW ...

Страница 19: ... 50V 5 SMT 0603 CC0 033 F 50V 20 SMT 0603 CC 390PF 50V 10 SMT 0603 CC0 47 F 25V 80 20 0603 CC 0 068 F 50V 20 SMT 0603 CC 820PF 50V 10 SMT 0603 ZENER DIODE 4 7V 1 2W SMT 1206 TR S8550 SMT SOT 23 IC DRAM 4MX4 TSOP 3 3V IC S1L9226 IC IP4001D IC S5L9276 IC S5L9291X100 TQFP 1414 SAM SUNG CD ESP MP3 SB D S 4 IN 1 15PIN FPC SOCKET PITCH 1 0MM RMF 330K 1 16W 5 SMT 0603 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω ...

Страница 20: ...8 1 8 1 EXPLODED VIEW MAIN UNIT ...

Страница 21: ...de stopper Screw M2 6 5 Front U bracket Mut Screw M3 8 Screw PAM2 8 Ni Deck front bracket PRT For CMU501 Servo board ass y CD DECK CL C01FY6 Screw Pw M2 4 color Zn Top cover Deck Rear Bracket For CM700 Screw M2 6 3 Screw M2 6 7 Plating nickel BTS screw M2 6 10 Pole Rubber Screw BTS M2 6 14 Ni Short sheet Ant socket W GND L230mm Screw M2 6 21 Heat sink For CM700 Rear U bracket Bracket IC7386 Main b...

Страница 22: ...www mobiteh com ...

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