Onkyo Car Satellite TV System CR 305X User Manual

CR-305X

Ref.NO.3654

082000

CD RECEIVER

MODEL CR-305X

Silver models

120 V AC,60 Hz

UDD,UDT

UPP

230 V AC,50 Hz

220 - 230 V AC,50/60Hz

UGT,UGR

TABLE OF CONTENTS

Specifications -----------------------------------------------------------

Caution on replacement of optical pickup --------------------------

SAFETY-RELATED COMPONENT WARNING!!

Protection of eyes from laser bam during servicing ---------------

COMPONENTS IDENTIFIED BY MARK ON THE

SCHEMATIC DIAGRAM AND IN THE PARTS LIST

ARE CRITICAL FOR RISK OF FIRE AND ELEC-

TRIC SHOCK. REPLACE THESE COMPONENTS

WITH ONKYO PARTS WHOSE PARTS NUMBERS

APPEAR AS SHOWN IN THIS MANUAL.

Service procedures -----------------------------------------------------

Front panel view ------------------------------------------------------

Rear panel view -------------------------------------------------------

Remote controller ----------------------------------------------------

Microprocessor connection diagram --------------------------------

Microprocessor terminal descriptions ------------------------------

IC Block diagram and descriptions ---------------------------------

CD Mechanism exploded view --------------------------------------

MAKE LEAKAGE-CURRENT OR RESISTANCE

MEASUREMENTS TO DETERMINE THAT EXPO-

SED PARTS ARE ACCEPTABLY INSULATED FORM

THE SUPPLY CIRCUIT BEFORE RETURNING THE

APPLIANCE TO THE CUSTOMER.

Replacement of optical pickup ---------------------------------------

Chassis exploded view parts list -------------------------------------

Chassis exploded view -----------------------------------------------

Block diagram ---------------------------------------------------------

Wiring view ------------------------------------------------------------

Printed circuit board view parts list --------------------------------

Schematic diagram (Amplifier section) -----------------------------

Printed circuit board view 1-------------------------------------------

Schematic diagram (CD & Microprocessor section) -------------

Printed circuit board view 2-------------------------------------------

Printed circuit board view 3-------------------------------------------

CD Adjustment procedures ------------------------------------------

Clock adjustment procedures ----------------------------------------

Assembling of pad ---------------------------------------------------

packing view ---------------------------------------------------------

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CR-305X

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs a laser. Therefore, be sure to follow carefully

the instructions below when servicing.

Laser Diode Properties

Material: GaAS/GaALAs

Wavelength: 780nm

Laser output: max. 0.5mW*

Emission Duration: continuous

*This output is the value measured at a distance about 1.8mm

from the objective lens surface on the Optical Pick-up Block.

WARNING!!

SERVICE WARNING : DO NOT APPROACH THE

LASER EXIT WITH THE EYE TOO CLOSELY.

IN CASE IT IS NECESSARY TO CONFIRM LASER

BEAM EMISSION, BE SURE TO OBSERVE FROM

A DISTANCE OF MORE THAN 30cm FROM THE

SURFACE OF THE OBJECTIVE LENS ON THE

OPTICAL PICK-UP BLOCK.

LASER WARNING LABEL

The label shown below are affixed.

1. Warning label

1. Class 1 label

LUOKAN 1

LASERLAITE

"CLASS 1 LASER

PRODUCT"

KLASS 1

LASER APPARAT

－3 －

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CR-305X

SERVICE PROCEDURE

5. Removement of tray

1. Replacing the fuses

1.Remove the top cover

This symbol located near the fuse indicates that the

2.Turn the locked screw to the clockwise to release the lock of gear.

fuse used is show operating type, For continued protection against

fire hazard, replace with same type fuse , For fuse rating, refer to

the marking adjest to the symbol.

(Refer to fig-1)

Fig-1

Bottom side

Lock

Unlock

Ce symbole indique que le fusible utilise est e lent.

Pour une protection permanente, n'utiliser que des fusibles de meme

type. Ce demier est indique la qu le present symbol est apposre.

DESCRIPTION

REF.NO.

PART NO.

1.25A-UL/T-237, Fuse <D, DT>

0.4A-SE-EAW, FUSE <P,GR, GT>

F901

252157

252083

Front

NOTE : <D, DT>

: 120 V model only

<P,GR, GT> : 230 V model only

3.Pull out the tray.

4.Remove the stopper. (Refer to fig-2)

Fig-2

2. To initialize the unit

1. Press and the hold down the MEMORY button , then press the

After "all lighting " is displayed

Stopper

2. Press the standby/on button.

After " CLEAR " is displayed, the preset memory and each mode

stored in the memory, are initialized and will return to the

factory settings.

3. Safety-check out

(Only U.S.A. model)

Tray

After correcting the original service problem perform the

follwing safety check before releasing the set to the customer

Connect the insulating-resistance tester between the plug of

power supply cord and terminal GND on the back panel.

Specifications: More than 10Mohm at 500V

Front

5.Press teh tray stopper to the arrow mark direction and remove

the tray ass'y. (Refer to fig-3)

Fig-3

4. Memory Preservation

This unit does not require memory preservation batteries. A built-in

memory power back-up system preserves the contents of the

memory during power failures and even when the unit is un-plugged.

The unit must be plugged in order to charge the back-up

system.

The memory preservation period after the unit has been unplugged

varies depending on climate and placement of the unit. On the

average, memory contents are protected over a period of a few

weeks after the last time the unit has been unplugged. This pe-riod

is shorter when the unit is exposed to a highly humid cli-mate.

5. Changing the AM band step

Tray

stopper

Front

Tray

stopper

With the exception of the worldwide models, a tuning step selector

switch is not provided. When you change the band step, change

the parts as shown below.

To 10kHz

3.3k

To 9kHz

10k

R705

R706

5.6k

open

－4 －

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CR-305X

FRONT PANEL VIEW

INPUT 　　　buttons

STANDBY/ON button

MEMORY button

FM MODE button

DISPLAY button

TUNING/PRESET　　　　buttons

　　　　　 , 　　　　　　　buttons

button

TUNING/PRESET

STANDBY/ON MFEMMMOORDYE

DISPLAY

INPUT

CLEAR

PHONES

ACOUSTIC PRESENCE

button and indicator

PHONES jack

Disc tray

Display

VOLUME control knob

Remote contrtol sensor

(Refer to the “Display” illustration.)

DISPLAY

CD indicator

MEMORY indicator

(play/pause) indicator

TRACK indicator

AUTO indicator

MONO indicator

AM/PM indicator

AM or PM lights up when you switch

the clock setting to “12H” (12 hour display).

RDS indicator (European models only)

Single remaining time indicator

Total remaining time indicator

Tuning indicator

STEREO indicator

TIMER

W.DAY

W.END MEMORY

REC REPEAT

SLEEP RANDOM

TRACK AUTO MONO

AM PM

RDS

STEREO

MUTING

S.BASS

C D

MIN

kHz

MHz

DIRECT

MUTING indicator

Frequency indicators

Sleep time indicator

Multi display

REPEAT indicator

RANDOM indicator

Timer setting indicators

－5 －

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CR-305X

REAR PANEL VIEW

SPEAKER

– –

U.S. and Canadian models

SPEAKERS

REMOTE

CONTROL

ANTENNA

INPUT (REC)

TAPE

OUT

Stereo cassette

(

)

REC

OUTPUT (PLAY)

INPUT (REC)

tape deck

DIGITAL

OUTPUT

OPTICAL

(

)

PLAY

OUT

(

)

REC

CD recorder

OUTPUT (PLAY)

(

)

PLAY

SUBWOOFER

PRE OUT

CDR

DIGITAL OPTICAL INPUT

: Signal flow

To wall outlet

SPEAKER

– –

Asian and European models

SPEAKERS

REMOTE

CONTROL

ANTENNA

OPTICAL

INPUT (REC)

TAPE

OUT

Stereo cassette

(

)

REC

OUTPUT (PLAY)

INPUT (REC)

tape deck

DIGITAL

OUTPUT

(

)

PLAY

OUT

(

)

(

)

REC

CD recorder

OUTPUT (PLAY)

(

)

(

)

PLAY

CDR

DIGITAL OPTICAL INPUT

To wall outlet

DIGITAL OPTICAL

INPUT

OUTPUT

(PLAY)

INPUT

(REC)

MD recorder

: Signal flow

－6 －

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CR-305X

REMOTE CONTROLLER : RC-421S

REMOTE CONTROLLER

STANDBY/ON

INPUT

STANDBY/ON button

INPUT ▲ / ▼ buttons

Toggles between STANDBY and ON.

Enables you to select a listening source.

TIMER

ENTER

TIMER operation buttons

Enables you to make the settings of the

clock, timer playback and recording.

RANDOM

CD operation buttons

MEMORY REPEAT

SCROLL

MD operation buttons

PLAY MODE REPEAT

SLEEP

A.PRESENCE

SLEEP button

A. PRESENCE button

Enables you to switch acoustic presence

off and types.

Enables you to make the sleep time setting.

VOLUME ▲ (UP)/▼ (DOWN) buttons

VOLUME

CLOCK

CALL

Enables you to increase or decrease the volume level.

MUTING

CLOCK CALL button

MUTING button

Enables you to display the current time.

Enables you to mute the sound temporarily.

CDR

CDR operation buttons

PLAY MODE REPEAT

TAPE

TAPE operation buttons

TUNER PRESET ▼ / ▲ buttons

TUNER

Enables you to select the PRESET stations.

PRESET

RC-421S

－7 －

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MICROPROCESSOR CONNECTION DIAGRAM

Q184-Q186

CD MUTNG SWITCH

Q101

RF SIGNAL PROCESSING

CD TRAY OPEN/CLOSE

DETECTOR SWITCH

SERVO AMP

CXA1992BR

Q703

SYSTEM RESET

26 SENS2

23 XRST

KEY SWITCH

SQSO 5

SENS 6

SQCK 4

DATA 7

XLAT 8

CLOK 9

Q301

VOLUME

CD DIGITAL

Q704

MOTOR DRIVE IC

TA7291S

SIGNAL PROCESSOR

CXD2589Q

S762 S761 S760 S759 S758 S757

79 XRST

FF PLAY STOP OPEN MEMORY

57 SCOR

INITIALIZING

(FM/AM BAND)

S756 S755 S754 S753 S752 S751

DISPLAY

AUTO

INPUT>

STBY

GRID

IG - 10G

INPUT<

/MONO

STEREO

IN/OUT

SIGNAL

U10

TUNER UNIT

Q751

FL TUBE

P17

P16

P15

P14

P13

P12

P11

VLOAD

P10

+5V

AVDD

AVREF

POFF

XT2

10-BT-167GK

SEGMENT

P11-P17

PLL

RCLK

RDATA

POWER

FAILURE

DETECTOR

Q701

MICROPROCESSOR

VSS

MPD78045FGF-119-3B9

Q401

INPUT SELECTOR

TC9273N-007

14 CK

C703

-VP

( CLOCK ADJUST)

RCLK

RDATA

FREQCAL

FCE

15 DATA

16 ST

SEGMENT

P1 - P10

TP-01

( CLOCK ADJUST )

PLLCE

D782

ACOUSTIC

PRESENCE

Q402

ACOUSTIC PRESENCE

SELECTOR IC

Q702

LED DRIVE

+5V

13 ST

16 DATA

15 CK

CD TRAY

+5V

OPEN/CLOSE

2 RDATA

1 QUAL

16 RCLK

Q180

RDS DECODER

Q704

MOTOR DRIVE IC

TA7291S

BU1923

Q601,Q602

POWER AMP SWITCH

INITIALIZING

(CD AUTO ADUST ON/OFF)

Q904

POWER

RELAY DRIVE

U751

REMOTE

SENSOR

Q702

BUFFER

Q110,Q111

CD POWER SWTCH

Q181-Q183

TUNER MUTE SWITCH

Q405,Q406

INPUT MUTE SWITCH

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MICROPROCESSOR TERMINAL DESCRIPTION (Q701 : MPD78042GF-3B9)

Description

Output pin for power supply control of power amplifier

Data input pin from RDS decoder IC.

Description

Function

POWER AMP

RDSDATA

RDSSIG

SCOR

RDSSCK

SYSIN

REMIN

I/O

NO.

I/O

NO.

Function

Signal input pin from RDS decoder IC.

Sub code frame detection input pin from signal processing IC(CXD2589Q).

Clock input pin from RDS decoder IC.

Grid output pins. (4G～10G)

System code input pin.

Signal input pin for remote controller.

10G

Internal connection pin. Not used.

Power supply pin.

VDD

SYSOUT

TUMUT

ANGMUT

VDD

System code output pin.

Command output pin to transfer the clock signal to signal processing IC(CXD2589Q). 49

CDCLK

XLT

Muting control signal output pin for tuner section.

Muting control signal output pin for amplifier section.

Power supply pin.

Command output pin to transfer the latch signal to signal processing IC(CXD2589Q).

Command output pin to transfer the data signal to signal processing IC(CXD2589Q).

Sense signal input pin from servo IC(CXA1992)

Digital mute output pin to signal processing IC(CXD2589Q).

Subcode reading clock output pin to signal processing IC(CXD2589Q).

Sense signal input pin from signal processing IC(CXD2589Q).

Subcode data input pin from signal processing IC(CXD2589Q).

System reset input pin.

CDDATA

SENS20

DSPMUT

SQCK

SENS

SQSO

RESET

STEREO

POWERCD

LED1

XRST

CDAUTOADJ

OPEN

LED2

Output pin for power supply control of CD section.

Acoustic presence indicator (red) control output pin.

Reset signal output pin of signal processing IC and servo IC.

Set pin of self adjustment ON/OFF of CD

CD tray open control output pin.

CD tray close control output pin.

FM stereo broadcast detection input pin.

Broadcast detection input pin.

Acoustic presence indicator (green) control output pin.

Ground pin for A/D converter.

AVSS

VOLDOWN

VOLUP

Volume control output pin.

Not used.

Segment output pins. (P1～P11)

Initialization input pin for destination switch.

Input pin for CD tray open/close detection switches.

Signal level input pin for automatic memory.

Operation key connection pin.

AREA

IN/OUT

SIGNAL

Operation key connection pin.

P10

Power supply pin for A/D converter.

AVDD

AVREF

POFF

XT2

P11

Reference voltage input pin for A/D converter.

Power failure input pin.

VLOAD

P12

Power supply pin for FL tube.

Sub clock connection pin. Not used.

P13

Gound pin.

VSS

P14

Segment output pins. (P12～P17)

Master clock connection pin.

P15

Master clock connection pin.

P16

Serial clock output pin to PLL and function switch ICs (TC9273,TC9162).

Serial data output pin to PLL and function switch ICs(TC9273,TC9162).

Frequency output terminal for clock adjustment

Serial latch output pin to function switch ICs(TC9273,TC9162).

Serial latch output pin to PLL IC.

RCLK

RDATA

FREQCAL

FCE

P17

Grid output pins. (1G～3G)

PLLCE

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CR-305X

IC BLOCK DIAGRAM AND DESCRIPTIONS

Q101:CXA1992BR (RF Signal Processing Servo Amplifier)

Block Diagram

VEE

RF SUMMING AMP

PD1 IV

AMP

PD2 IV

AMP

FE BIAS 40

SENS2

SENS1

C.OUT

VCC

APC

IIL

↓

TTL

_LASERV_PE_OE_{WER CONTROL}

F IV AMP

VCC

FE AMP

E IV AMP

VEE

DFCT

23 XRST

EI 43

VEE

LEVEL S

VEE

FO.BIAS

WINDOW COMP.

VEE 44

DATA

MIRR

IIL

↓

TTL

VCC

TTL

↓

TRK.GAIN

XLT

TEO

WINDOW COMP

FOK

IIL

E-F BALANCE

WINDOW COMP.

CLK

LOCK

VCC

LPFI 46

TEI 47

FOH

FOL

TGH

TGL

BALH

BALL

ATSC

TZC

IIL DATA REGISTER

INPUT SHIFT REGISTER

ADDRESS DECODER

SENS SELECTOR

OUTPUT DECODER

VCC

FZC

ATSC

WINDOW

COMP.

DFCTO IFB1-6

FS1-4 TG1-2

TN1-7

PS1-4

TZC COMP.

BAL1-4

TOG1-4

ISET

TZC 49

DFCT

TM1

VCC

TM4

VCC

TM6

TRACKING

PHASE COMPENSATION

SL O

TDFCT

TG1

VCC

SL M

VCC

FS1

TM3

VCC

VEE

FOCUS

PHASE COMPENSATION

TM3

VEE

TM5

VEE

SL P

FZC

TM2

FS2

Charge

DFCT

FSET

FZC COMP.

TG2

FS4

VEE

－10 －

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CR-305X

Terminal description

Symbol

FEO

Description

Symbol

Description

I/O

No.

Focus error amplifier output.

Connected internally to the window comparator input

for bias adjustment.

26 SENS2

Outputs DFCT2, MIRR, BALL, TGL, FOL, and

others according to the command from the CPU.

Focus OK comparator output.

Input for the defect bottom hold output with capa-

citance coupled.

FOK

CC2

FEI

Focus error input.

FDFCT

FGD

Capacitor connection pin for defect time constant.

Ground this pin through a capacitor for cutting the

focus servo high-frequency gain.

Defect bottom hold output. Connected internally to

the interruption comparator input.

29 CC1

FLB

External time constant setting pin for boosting the

focus servo low-frequency.

30 CB

31 CP

Connection pin for defect bottom hold capacitor.

Connection pin for MIRR hold capacitor.

MIRR comparator non-inverted input.

FE_O

Focus drive output.

Focus amplifier inverted input.

Input for the RF summing amplifier output with capa-

citance coupled.

RF_I

FE_M

SRCH

External time constant setting pin for generating

focus search waveform.

RF sunning amplifier output. Eyepattern check point.

33 RF_O

34 RF_M

External time constant setting pin for switching track-

ing high-frequency gain.

RF summing amplifier inverted input.

The RF amplifier gain is determined by the resistance

connected

TGU

10 TG2

External time constant setting pin for switching track-

ing high-frequency gain.

between this pin and RFO pin.

Peak frequency setting pin for focus and tracking

phase compensation amplifier.

35 RFTC

FSET

External time constant setting pin during RF level

control.

12 TA_M

Tracking amplifier inverted input.

Tracking drive output.

APC amplifier output.

APC amplifier input.

RF I-V amplifier inverted input. Connect these pins

to the photo diode A + C and B + D pins.

TA_O

37 PD

38 PD1

14 SL_P

Sled amplifier non-inverted input.

Sled amplifier inverted input.

PD2

15 SL_M

16 SL_O

17 ISET

FE_BIAS

Sled drive output.

Bias adjustment of focus error amplifier.

Leave this pin open for automatic adjustment.

Connect an external capacitance to set the current

which determines the Focus search, Track jump, and

Sled kick heights.

F I-V and E I-V amplifier inverted input.

Connect these pins to photo diodes F and E.

—

Positive power supply.

The sled overrun prevention circuit operates when

this pin is Low. (no pull-up resistance)

43 EI

VCC

I-V amplifier E gain adjustment.

(When not using automatic balance adjustment)

19 LOCK

—

Negative power supply.

VEE

Tracking error amplifier output. E-F signal is output.

Comparator input for balance adjustment.

(Input from TEO through LPF)

20 CLK

Serial data transfer clock input from CPU.

(no pull-up resistance)

45 TEO

46 LPFI

21 XLT

Latch input from CPU. (no pull-up resistance)

Serial data input from CPU. (no pull-up resistance)

TEI

Tracking error input.

22 DATA

23 XRST

24 C. OUT

25 SENS1

Reset input; resets at Low. (no pull-up resistance)

Track number count signal output.

Outputs FZC, DFCT1, TZC, BALH, TGH, FOH,

ATSC, and others according to the command from

CPU.

ATSC

TZC

Window comparator input for ATSC detection.

Tracking zero-cross comparator input.

Capacitor connection pin for defect time constant.

TDFCT

(VCC + VEE)/2 direct voltage output.

Focus zero-cross comparator input.

52 FZC

－11 －

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CR-305X

Q301:CXD2589Q (CD Digital Signal Processor)

Bloch Diagram

51 25 26

27 28

OSC

47 49 54 56

50 39 41

43 55 40 42 44 62

24 TES1

TEST

Clock

Generator

Error

Corrector

XRST

C4M

RMUT

LMUT

D/A

Interface

EFM

demodurator

Serial-In

Interface

ASYI

ASYO

Asymmetry

Corrector

XTAI

Timing

Logic

BIAS 36

XTAO

Over Sampling

Digital Filter

16K

RAM

XPCK

FILO

FILI

PCO

CLTV

Digital

OUT

3rd-Order

Noise Shaper

Sub Code

Processor

Digital

PLL

PWM

FOK

SEIN

CNIN

Servo

Auto

Sequencer

CPU

Interface

Digital

CLV

12 13 14

15 16 17 57 58 59

5533

74 7755 76

67 66 65

57 58

－12 －

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CR-305X

Terminal description

No.

Symbol

Description

Symbol

Description

I/O

D/A interface. Bit clock output.

D/A interface. Bit clock input.

GND

Power supply (+5V).

XUGF output. Switched to MNT1 or RFCK output

by a command.

XPLCK output. Switched to MNT0 output by a com-

mand.

GFS output. Switched to MNT3 or XRAOF output

by a command.

C2PO output. Switched to GTOP output by a com-

mand.

Crystal selector input. Low: 16.9344MHz;

high: 33.8688MHz.

4.2336MHz output. 1/4 frequency-divided VCKI out-

put in CAV-W mode.

Digital Out output.

Outputs a high signal when the playback disc has

emphasis, and a low signal when there is no emphasis.

Inputs a high signal when de-emphasis is on, and a

low signal when de-emphasis is off.

WFCK output.

Outputs a high signal when either subcode sync S0

or S1 is detected.

Sub P to W serial output.

SBSO readout clock input.

GND

—

VSS

BCK

BCKI

VSS

VDD

XUGF

Left-channel zero detection flag.

Right-channel zero detection flag.

SQSO readout clock input.

Sub Q 80-bit serial output.

SENS output to CPU.

Serial data input from CPU.

Latch input from CPU. Serial data is latched at the

falling edge.

Serial data transfer clock input from CPU.

SENS input from SSP.

Track jump count signal input.

Serial data output to SSP.

LMUT

RMUT

SQCK

SQSO

SENS

DATA

XLAT

XPCK

GFS

CLOK

SEIN

CNIN

DATO

XLTO

C2PO

XTSL

C4M

Serial data latch output to SSP. Latched at the falling

edge.

Serial data transfer clock output to SSP.

Microcomputer extended interface (input A).

Microcomputer extended interface (input B).

Microcomputer extended interface (output).

Focus OK input.

Used for SENS output and the servo auto sequencer.

Power supply (+5V).

GND

Spindle motor servo control.

Spindle motor external control input.

TEST pin; normally GND.

Charge pump output for the wide-band EFM PLL.

VCO2 oscillation input for the wide-band EFM PLL. 62

VCO2 oscillation output for the wide-band EFM

PLL.

VCO2 control voltage input for the wide-band EFM

PLL.

Master PLL charge pump output.

Master PLL (slave = digital PLL) filter output.

Master PLL filter input.

CLKO

SPOA

SPOB

XLON

FOK

DOUT

EMPH

EMPHI

—

VDD

VSS

WFCK

SCOR

MDP

PWMI

TEST

TES1

VPCO

VCKI

V16M

—

SBSO

EXCK

VSS

Power supply (+5V).

Mute input. Active when high.

Analog GND.

Analog power supply (+5V).

Left-channel analog output.

Left-channel operational amplifier input.

Left-channel LINE output.

VDD

SYSM

AVSS

AVDD

AOUT1

AIN1

LOUT1

AVSS

XVDD

XTAI

VCTL

—

PCO

FILO

FILI

Analog GND.

Power supply for master clock.

Crystal oscillation circuit input. Input the external

master clock via this pin.

Crystal oscillation circuit output.

GND for master clock.

Analog GND.

AVSS

CLTV

AVDD

BIAS

ASYI

ASYO

LRCK

LRCKI

PCMD

Master VCO control voltage input.

Analog power supply (+5V).

EFM signal input.

Constant current input of the asymmetry circuit.

Asymmetry comparator voltage input.

EFM full-swing output (low = VSS, high = VDD).

D/A interface. LR clock output f = Fs.

LR clock input.

D/A interface. Serial data output (two's complement, 78

MSB first).

D/A interface. Serial data input (two's complement,

MSB first).

XTAO

XVSS

AVSS

LOUT2

AIN2

AOUT2

AVDD

AVSS

XRST

VDD

Analog GND.

—

Right-channel LINE output.

Right-channel operational amplifier input.

Right-channel analog output.

Analog power supply (+5V).

Analog GND.

System reset. Reset when low.

Power supply (+5V).

—

PCMDI

Notes)

• PCMD is an MSB first, two's complement output.

• GTOP is used to monitor the frame sync protection status. (High: sync protection window open.)

• XUGF is the frame sync obtained from the EFM signal, and a negative pulse. It is the signal before

sync protection.

• XPLCK is the inverse of the EFM PLL clock. The PLL is designed so that the falling edge of XPLCK

and the EFM signal transition point coincide.

• GFS goes high when the frame sync and the insertion protection timing match.

• RFCK is derived with the crystal accuracy. This signal has a cycle of 136µs (during normal speed).

• C2PO represents the data error status.

• XRAOF is generated when the 16K RAM exceeds the 4F jitter margin.

－13 －

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CR-305X

Q401:TC9273N-007 (Analog function switch)

VSS VDD

27 S1

OUT

OUT 12

17 OUT

LEVEL SHIFT AND

SHIFT REGISTER

GND CK DATA STB

Q402:TC9162AF Analog function switch

VSS

VDD

GND

27 S1

26 S2

25 S3

24 COM1

23 S4

COM1

22 S5

21 S6

20 COM2

COM2

COM3

DATA

COM3

SHIFT REGISTER

－14 －

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CR-305X

Q180:BU1923 (RDS Decoder(

Q102:LA6541D (4-channel ridge Driver for Compact Dizcs)

CMP

(8)

VSS3

(7)

100 kΩ

(4)

MUX

100 kΩ

8ch Switched

capacitor filter

120 kΩ

Comparator

(3)

anti-aliasing

filter

VREF

(16)

RCLK

QUAL

(5)

VDD1

VSS1

VDD2

VSS2

Analog

Power supply

(1)

(2)

(6)

PLL

RDATA

PLL

Differential

decoder

Bi-phase

57 kHz

(12)

(11)

1187.5 Hz

decoder

RDS/ARI

Digital

power supply

Measurement

circuit

Reference

clock

Pin No.

Pin Name

Description (Function)

Power supply (shorted with pin 30)

(10)

(9)

(13)

(14)

Mute

ON/OFF control for all BTL AMP outputs

BTL AMP 1 input

VG1

V 1

BTL AMP 1 input (for gain control)

BTL AMP 1 output (non-inverting side)

BTL AMP 1 output (inverting side)

GND (minimum electric potential)

BTL AMP 2 output (inverting side)

BTL AMP 2 output (non-inverting side)

BTL AMP 2 input (for gain control)

BTL AMP 2 input

V 2

GND

Pin No.

Symbol

QUAL

RDATA

Vref

Pin name

Function

Demodulator quality Good data : High , bad data : Low

V 3

Demodulator data

Reference voltage

Input

Refer to output data trimming

1/2 VDD1

V 4

VG2

MUX

VDD1

Vss1

Vss3

CMP

Composite signal input

Analog power supply 4.5 V to 5.5 V

REG OUT

REG IN

RES

Connection for collector of external transistor (PNP); 5 V supply output

Connection for base of external transistor (PNP)

Reset output

GND

Reset output delay time setting (with capacitor)

BTL AMP 3 input

Comparator input

Test input

C-junction

VG3

V 5

Open or connected to ground

BTL AMP 3 input (for gain control)

BTL AMP 3 output (non-inverting side)

BTL AMP 3 output (inverting side)

GND (minimum electric potential)

BTL AMP 4 output (inverting side)

BTL AMP 4 output (non-inverting side)

BTL AMP 4 input (for gain control)

BTL AMP 4 input

VDD2

Vss2

Digital power supply 4.5 V to 5.5 V

V 6

GND

Crystal oscillor

Connects to 4.332 MHz oscillator

(NC)

RCLK

V 7

Demodulator clock

1187.5 Hz clock

V 8

VG4

Reference voltage input for level shift circuit

Power supply (shorted with pin 1)

REF

－15 －

－16 －

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CR-305X

Q751 : 10BT-167GK (FL TUBE)

Q103:TA7291S (motor driver)

Vcc

Vref

10G

6G 5G 4G 3G 2G

Vss

TIMER

W.DAY

W.END MEMORY

REC REPEAT

SLEEP RANDOM

TRACK AUTO MONO

AM PM

RDS

STEREO

C D

MUTING

S.BASS

DIRECT

MIN

kHz

MHz

INPUT

IN1 IN2 OUT1 OUT2

OUTPUT

REG

OUT1

MODE

STOP

CW/CCW

CCW/SW

BRAKE

∞

(9G - 2G)

OUT2

CCW : Counter clockwise diection

CW : Clockwise diection

PROTECTOR

10G

W.DAY

W.END

MUTING

MIN

S.BASS

IN1

IN2

GND

MEMORY

REC

REPEAT

RANDOM

MHz

kHz

DIRECT

Q691:TC7WU04FU (triple inverters)

P10

P11

P12

P13

P14

P15

P16

P17

Vcc

Truth table

TIMER

SLEEP

TRACK AUTO MONO

Col

RDS

A Y

L H

H L

STEREO

GND

－17－

－18 －

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CR-305X

CD MECHANISM EXPLODEE VIEW(1)

CD MECHANISM EXPLODEE VIEW(2)

pickup drive unit

The mechanical parts with no part number

in the exploded views are not supplied.

Ref. No.

Part No.

Description

X2625-984-1 Motor chassis ass'y

X2625-769-1 Motor gear ass'y

2656-908-01 Sled shaft

2625-188-02 Gear A

7621-255-15 P2x3, Screw

1572-085-11 Leaf switch

1639-678-12 Motor PC board

1564-722-11 Socket

2627-003-02 Gear B

2625-191-01 Coil spring

2625-477-01 Center ring

2641-386-01 Special screw, 2*5

2625-625-01 Reinforcement board

8848-483-05 KSS-213C, Pickup

Ref. No.

Part No.

2646-290-01 Tray

Stopper

2625-544-01 Gear cover

2625-535-01 Tray Gear

2625-546-01 Chucking plate

Description

Ref. No.

Part No.

2627-234-01 Insulator

KSM-213CCM

2625-552-06 Main chassis

3319-501-51 PTPWH2.6*16, Screw

2625-547-01 Drive Gear

2625-545-04 Control cam

1692-667-11 Leaf switch

1564-721-11 Socket

Description

PTPWH2.6*7,Screw

2625-537-01 Chucking yoke

1452-493-21 Magnet

2625-541-02 Damper

1640-523-11 Loading motor ass'y

X2625-117-1 Loading motor

2625-274-02 Middle gear

2625-536-02 Loading pulley

3653-387-00 LM belt

2646-291-01 Chucking pulley

2646-288-01 Sub chassis

2627-236-01 Coil spring (front)

2627-235-01 Coil spring (back)

2646-289-01 Washer

B2.6*2.5, Screw

P2.6*10,Screw

－19 －

－20 －

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CR-305X

REPLACEMENT OF OPIAL PICKUP

CHASSIS EXPLODED VIEW PARTS LIST

The laser diode in the optical pickup block is so sensitive to static electricity,surge current and etc.

That the components are liable to be broken down or its reliability remarkably deteriorated.

During repair,carefully take the following precautions.

REF.NO. PART NO.

DESCRIPTION

Front brakcet

3TTB+8B, Self tapping screw

Chassis

KGLS-6RF, Holder

KGPS-6RF, Holder

Hoder, M

PART NO.

H445574-1A

DESCRIPTION

NAAF-6874-1A, Selector circuit PC board ass'y <D>

REF.NO.

27111168

838130088

27100384

27190693A

27191112

27191110

27175253-1A

27300750

830440069

831430088

28184781

28184782

838930088

28325775A

28148447

27150456

27122738

27122739

838430068

27212217

27212218

27268027A

28198909

28191888

880009

1H445574-1B NAAF-6874-1B, Selector circuit PC board ass'y

1H445574-1C NAAF-6874-1C, Selector circuit PC board ass'y <DT>

1H445574-1D NAAF-6874-1D, Selector circuit PC board ass'y <GR, GT>

1H445578-1A NAPS-6878-1A, Power supply PC board ass'y <D>

1H445578-1B NAPS-6878-1B, Power supply PC board ass'y

Do not touch the optical pickup object lens with the hands.

(1) The machine screw of four points which is the fixation

of mechanism is removed, mechanism is upset, and

PC which is about the bottom of mechanism is seen.

(Fig-1,Fig-2)

(3) Connect J293 (or LD short terminal 2) on CD

Connector PC board (NAETC-6883) first when

you replace an optical pickup. (Fig-4)

Leg

1H445578-1C

NAPS-6878-1C, Power supply PC board ass'y <DT>

ÅI Busing, cord

1H445578-1D NAPS-6878-1D, Power supply PC board ass'y<GR, GT>

1H445579-1A NADIS-6879-1A, Display circuit PC board ass'y <D>

1H445579-1B NADIS-6879-1B, Display circuit PC board ass'y

1H445579-1C NADIS-6879-1C, Display circuit PC board ass'y <DT>

1H445579-1D NADIS-6879-1D, Display circuit PC board ass'y<GR, GT>

1H445580-1A NAAF-6880-1A, Power amplifier PC board ass'y <D>

1H445580-1B NAAF-6880-1B, Power amplifier PC board ass'y

1H445580-1C NAAF-6880-1C, Power amplifier PC board ass'y <DT>

1H445580-1D NAAF-6880-1D, Power amplifier PC board ass'y<GR, GT>

1H445581-1A NAETC-6881-1A, Speaker terminal PC board ass'y <D>

1H445581-1B NAETC-6881-1B, Speaker terminal PC board ass'y

1H445581-1C NAETC-6881-1C, Speaker terminal PC board ass'y <DT>

1H445581-1D NAETC-6881-1D, Speaker terminal PC board ass'y<GR, GT>

1H445582-1A NAETC-6882-1A, Digital output PC board ass'y <D>

1H445582-1B NAETC-6882-1B, Digital output PC board ass'y

1H445582-1C NAETC-6882-1C, Digital output PC board ass'y <DT>

1H445582-1D NAETC-6882-1D, Digital output PC board ass'y<GR, GT>

(Fig-4)

4TTC+6C(BC), Self tapping screw

3TTW+8B(BC), Self tapping screw

Cover, HT

Top cover

3TTB+8B(UN), Self tapping screw

Knob, volume

Tray panel, CD

Shield plate

Rear panel<D>

Rear panel<P, GR, DT, GT>

3TTB+6B(BC), Self tapping screw

Front panel<D, GR, DT, GT>

Front panel

Guide, volume

Facet

Clear plate

Plastic rivet, NRP-345<P, GR, GT>

Label, Spec.<D>

Label, Spec.<GR>

Label, Spec.<DT>

Label, Spec.<GT>

Label, Spec.

Label, Warning <D>

Label, Warning<P, GR, GT, DT>

Label<GR, GT, P>

Label

J293

screw

(Fig-1)

NAETC-6883

(Component side)

CD Mechanism

NAETC-6883

(Soldering side)

LD short terminal 2

25136900

NCETC-6900, PC board for holder <P, GR, GT>

29362650

29362700

29362651

29362699

29362652

29362572A

29362571

29360687

29362285

1H445575-1A NAAR-6875-1A, CD circuit PC board ass'y<D>

1H445575-1B NAAR-6875-1B, CD circuit PC board ass'y

1H445575-1C NAAR-6875-1C, CD circuit PC board ass'y<DT>

1H445575-1D NAAR-6875-1D, CD circuit PC board ass'y<GR, GT>

1H445583-1A NAETC-6883-1A, Connector PC board ass'y<D>

1H445583-1B NAETC-6883-1B, Connector PC board ass'y

1H445583-1C NAETC-6883-1C, Connector PC board ass'y<DT>

1H445583-1D NAETC-6883-1D, Connector PC board ass'y<GR, GT>

screw

(Fig2)

Remove socket P351 between the CD

Connector PC board and the Main circuit

PC board.(Fig-5)

(4)

(Fig-5)

NAETC-6883

P351

to main PC board

240134

240135

TFCE1U114A, Tuner unit<D>

TFCE1E512A, Tuner unit<GR, GT, P DT>

U10

(NAAR-6875)

F901

252157

252083

ÅI 1.25A-UL/T-237, Fuse<D, DT>

ÅI 0.4A-SE-EAW, Fuse<P,GR, GT>

NSAS-10P0654, Socket

P302

P303

P351

P352

P701

P778

P901

2009990500

20022391210

2047161012

2042161022

2047360612

2047151012

NSAS-12P0723, Socket

NCFC7-161012, Flexible flat cable

NCFC2-161022, Flexible flat cable

NCFC7-360612, Flexible flat cable

NCFC7-151012F,lexible flat cable

P352

to CD mechanism

NOTE :

THE COMPONENTS IDENTIFIED BY THE MARK ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE ONLY WITH PART NUMBER SPECIFIED.

(5) Solder the LD short terminal 1 on mechanism

253294HDK ÅI AS-UC-2#18, Power supply cord<D, DT>

253287HIT ÅI AS-CCEE, Power supply cord<GR>

253237HIT ÅI AS-CEE, Power supply cord<P, GT>

(Fig-6)

(6) Disconnect the flexible flat cable P352. (Fig-6)

(Fig-6)

Q557,Q558 2203384 or

2203383

Q559,Q560 2203394 or

2203393

2SC3851-Y or

2SC3851-O, Transistor

2SA1488-Y or

2SA1488-O, Transistor

Heat sink

3SMS8W.SW+14B(BC), Special screw

(2) The machine screw is removed and CD connector

PC board(NAETC-6883) is removed from the main body

of CD mechanism.(Fig-3)

<D>

<DT>

<GR>

<GT>

USA & Canadian models only

LD short terminal 1

: Taiwanese model only

: European model only

: Chinese model only

: Asian model only

Q557A

Q557B

T901

27160468

801433

2301452

(Fig-3)

P352

to NAETC-6883

CD mechaniam

ÅI NPT-1391D, Power transformer<D, DT>

ÅI NPT-1391G, Power transformer<GR, GT>

ÅI NPT-1391P, Power transformer

NCD-170S, CD mechanism

2301454

2301453

CAUTION : Replacement of the transistor of mark ,if necessary, must be　　　　　　

made from the same beta group(HFE) as the original type.

24800018A

24840133

24840135

838120080

838426088

Boss, PCB

Boss, PCB3

2TTB+8P, Self tapping screw

2.6TTB+8B(BC), Self tapping screw

screw

(7) Replace the optical pickup.

(8) Connect the flexible flat cable P352. (Fig-6)

(9) Unsolder the LD terminal 1 on mechanism. (Fig-6)

(10)

Connect the socket P351 between CD Connector

and Main circuit PC boards (NAAR-6875).

(Fig-5)

(11) Cut J293.(or Unsolder the LD terminal 2) (Fig-4)

CD connector PC board

(NAETC-6883)

－21 －

－22 －

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CR-305X

CHASSIS EXPLODED VIEW

P901

(P,GR,GT type)

P352

(D,DT type)

U10

P778

P303

P351

P302

Q557

Q558

Q557A

Q559

Q557B

Q560

T901

F901

P701

－23 －

－24 －

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BLOCK DIAGRAM

Q403,Q404

ACOUSTIC PRESENCE CONTROL

POWER AMP.

Q401 INPUT SELECTOR

TC9273N-007

REC

TAPE

VOLUME

R425

PLAY

P551

SPEAKERS

REC

CDR

Q603,Q405

MUTING

Q601,Q602

AMP. MUTE

PLAY

REC

PLAY

+12V

Q402

13 ST

CK 14

DATA 15

ST 16

USA & Canadian models only

ACOUSTIC PRESENCE

CONTROL

TC9162

Q704

MOTOR VOLUME

DRIVER TA7291S

15 CK

P405

SUBWOOFER

PREOUT

Excluding

USA &

U692

16 DATA

Q691

BUFFER

TC7W04

Canadian

models

U691

OPTICAL

OUTPUT

P553

PHONES

40 PLL

Q181-Q183

TUNER MUTE

Q184-Q186

CD MUTE

36 RCLK

37 RDATA

39 FCE

RL901

Q902

OUT

ANG MUTE 51

POWER 41

PLL

RCLK

RDATA

13 DSP MUTE

50 TU MUTE

Q180

RDS DECODER

BU1923

42 RDS DATA

43 RDS SIG

45 RDSCLK

TUNER UNIT

-27V

T901

POWER

TRANSFORMER

RDS

Q902

STEREO

SIGNAL

+12V

European Model only

Q901

78M12

18 STEREO

19 SD

26 SIGNAL

F901

+22V

SSTOP

15 SPOA

36 LD

Q701

CLK 20

14 CLK

13 XLT

12 DAT

CLOCK

XLAT

DATA

MICROPROCESSOR

MPD78045GF-119-3B9

37 PD

P901

XLT 21

DATA 22

-22V

Q101

RF SIGNAL

PROCESSING

SERVO AMP.

CXA1992BR

Q301

11 CNIN

10 SEIN

A,C

B,D

E,F

COUT 24

SENS1 25

FOK 27

38 PD1

39 PD2

41,42

AC IN

CD DIGITAL SIGNAL

PROCESSOR

SENS

SQCK

SQSO

D C

+5.6V

Q903

78M56

CXD2589Q

18 FOK

XRST 79

SENS2 26

VCC 18

SCOR

1 FEO

POWER

FAILURE

DETECTOR

POFF 31

CD MECHANISM

FOCUS

GAIN ADJ.

XRST 23

55 XRST

SYS IN 46

TO FL TUBE

Q702

BUFFER

12 SENS20

SYS OUT 49

FOCUS

COIL

5 VO1+

6 VO1 -

10 VO2+

11 VO2-

53 POWER CD

57 OPEN

TRACKING

COIL

5.6V

VCC

58 CLOSE

REMIN 47

Q105

FOCUS/TRACKING &

SLED/SPINDLE

MOTOR DRIVER

LA6541D

SPINDLE

20 VO3+

21 VO3-

25 IN/OUT

Q110

MOTOR

,Q111

SLED

MOTOR

25 VO4+

26 VO4-

SPDL

VG3 19

U751

REMOTE

SENSOR

Q103

TRAY MOTOR DRIVER

TA7291S

3 OUT2

7 OUT1

TRAY

MOTOR

Q751

FL TUBE

10-BT-167GK

S751-S762

KEY SWITCH

OPEN/

WIRING VIEW

OPTICAL

TAPE

CDR

SW PREOUT

P405B

P405A

SPEAKERS

USA & Canadian

models only

MDREC-L

GND

DREC-R

GND

MDREC-L

GND

JL501A

Excluding USA & Canadian models

DREC-R

GND

L+

LNF

L-

GND

R-

RNF

R-

-B

SPEAKER TERMINAL PC BOARD

MDPLAY-L

GND

MDPLAY-L

GND

JL405A

JL405B

(NAETC-6881)

JL552A

DIGITAL OUTPUT

PC BOARD

P30

MDPLAY-R

GND

MDPLAY-R

GND

(NAETC-6882)

DOUT

P29

GND

P778A

Excluding USA & Cana

-dian models only

STEREO

TUMUTE

TU-R

GND

TU-L

RDS

+12V

+5V

SIGNAL

GND

STB

TUMUTE

TU-R

GND

P403B

TU-L

RDS

+12V

+5V

SIGNAL

GND

STB

RCLK

DATA

PLL

P403A

U10

TUNER UNIT

JL501B

TU-R

GND

TU-L

GND

TU-R

GND

L+

LNF

L-

GND

R-

RNF

R-

-B

TU-L

GND

POWER AMPLIFIER

PC BOARD

MDREC-R

GND

MDREC-R

GND

P30

(NAAF-6880)

MDREC-L

GND

RCLK

DATA

PLL

MDREC-L

GND

MDPLAY-R

GND

MDPLAY-R

GND

P393

GND

MDPLAY-L

GND

MDPLAY-L

GND

CD-L

GND

CD MACHANISM

PICKUP UNIT

AC INPUT

CD-R

GND

Loading motor

PC board

Spindle motor

PC board

-B

JL903

GND

P404B

P404

CONNECTOR

PC BOARD

CLK

DATA

CLK

DATA

(NAETC-6883)

P902

P33

VOL DOWN

VOL UP

MUTE

VOL DOWN

VOL UP

MUTE

POWER

T901

Power transformer

POWER

P901B

P901A

+12V

FL1

+12V

FL1

SELECTOR CIRCUIT

PC BOARD

CD & MICROPROCESSOR

CIRCUIT PC BOARD

(NAAR-6875)

FL2

-VP

FL2

-VP

+5.6V

GND

POFF

POW. AMP

(NAAF-6874)

+5.6V

GND

POFF

P29

P33

POWER SUPPLY PC BOARD

(NAPS-6878)

P30

POW. AMP

Volume

JL552B

GND

DISPLAY CIRCUIT PC BOARD

(NADIS-6879)

FL TUBE

P29

PHONES

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CR-305X

PRINTED CIRCUIT BOARD VIEW PARTS LIST

SELECTOR CIRCUIT PC BOARD (NAAF-6874-1A/-1B/-1C/-1D)

CIRCUIT NO.

DESCRIPTION

PART NO.

Capacitors

355741009

371124734

Resistors

443521014

452732294F

453530824

Sockets

DESCRIPTION

PART NO.

Diodes

CIRCUIT NO. PART NO.

ICs

DESCRIPTION

CIRCUIT NO.

PART NO.

Capacitors

354763329S 3300 μF,35 V, Elect.

DESCRIPTION

C551,C552

C553,C554

D101,D703,D707

D701,D702,D704

D705

1SS352

10μF, 16 V, Elect.

0.047 μ±5 %, 50 V, Plastic

223234R2

22380284R2

224490560R2

224490510R2

Coils

231237K100R2

Crystals

3010321

3010308

Q401

Q402

Q403,Q404

22241072

TC9273N-007

TC9162AF

NJM4565M-D

C904,C905

C907

C909

C913

C914

1SR154-400

UDZ5.6B, Zener

UDZ5.1B, Zener

22240981R2

22241383R2

Transistors

2215410R2

2214470R2

2216156R2

2213143R2

2211455 or

2215975

2211455 or

2215975

2213143R2

2214375R2

Diodes

354741009

354761019

354764709

3500173S

354781019

374722244

Resistors

443622204

453530224

453534794

443521024

443522704

431533355

Relay

10 μF, 16 V, Elect.

100 μF, 35 V, Elect.

47 μF, 35 V, Elect.

6800 μF, 16 V, Elect.

100 μF, 50 V, Elect.

0.22 μF±5 %, 50 V, Plastic

R557,R558

R559-R562

R563,R564

D791

100 Ω±5 %, 1/2 W, Metal oxide

0.22 Ω±5 %, 2 W, Metal oxide

8.2 Ω±5 %, 1/2 W, Metal oxide

Q405, Q406

Q409, Q603

Q501-Q504

Q505-Q508

Q509-Q512

RN1441

RN1402

L101,L351

NCH-1475

C918

C920-C924

2SC1622A-L

2SC2712-O

2SA1015-GR or

KTA1266-GR

2SA1015-GR or

KTA1266-GR

2SC2712-O

2SA1162-GR

JL501B

JL504A

JL551A

X181

X351

X701

HC-49/U034.332 MHz

HC-49/U0316.9344M

HC-49/U03 4.19M10P

25051094

25051110

25051088

NSCT-10P881

NSCT-6P897

NSCT-4P875

R901

R903,R913

R907

R908

R911

22 Ω±5 %, 1 W, Metal oxide

2.2 Ω±5 %, 1/2 W, Metal oxide

0.47 Ω±5 %, 1/2 W, Metal oxide

1 k Ω±5 %, 1/2 W, Metal oxide

27 Ω±5%, 1/2 W, Metal oxide

3.3 MΩ±20 %,1/2 W,Solid <D,DT>

3010261

Capacitors

355721019

374721034

374724744

374722224

374721024

374721044

355780479

355763309

355780339

374723334

374721034

354724719

355721019

374722234

355780229

355721019

355780229

374726814

355762209

355784799

374724734

374721524

3060010

Q515-Q518

SPEAKER TERMINAL PC BOARD

(NAETC-6881-1A/-1B/-1C/-1D)

CIRCUIT NO.

C102,C129,C135

C104,C105,C115

C106,C109

C107,C124,C133

C108

C110,C111,C113

C112

C117,C794,C795

C118,C191,C192

C120

C121,C123

C125,C128 ,C352

C134

C136,C145,C151

C137

C139,C181,C708

C180,C350,C712

C185

C333,C334

C335,C336

C351

100 μF, 6.3 V, Elect.

0.01 μF, ±5 %, 50 V, Plastic

0.47 μF, ±5 %, 50 V, Plastic

2200 pF, ±5 %, 50 V, Plastic

1000 pF, ±5 %, 50 V, Plastic

0.1 μF, ±5 %, 50 V, Plastic

4.7 μF, 50 V, Elect.

33 μF, 35 V, Elect.

3.3 μF, 50 V, Elect.

0.033 μF, ±5 %, 50 V, Plastic

0.01 μF, ±5%, 50V, Plastic

0.01 μF, ±5 %, 50 V, Plastic

470 μF, 6.3 V, Elect.

Q601

Q602

PART NO.

Coils

231176S

Resistors

453530564

Sockets

25051087

25051088

25055626

Terminal

25060299

DESCRIPTION

R912

L551,L552

S-1.3C

D491,D492

D501-D504

D601

224491300R2 UDZ13B

RL901

25065607

NRL-2P5A-DC12-155 <D,DT>

R565,R566

5.6 Ω±5%, 1/2 W, Metal oxide

223234R2

Capacitors

354742209

371126834

371121534

1SS352

25065598 or NRL-2P3A-DC12-148 or

25065597

Plug

25055624

25055153

NRL-2P8A-DC12-147 <P,GR,GT,PT>

JL405A

JL551B

JL552A

NSCT-3P874<D>

NSCT-4P875

NPLG-5P588

C409,C410

C415-C418

C421,C422

22 μF, 16 V, Elect.

JL903B

P901B

P902

NPLG-3P586

NPLG-9P137

NPLG-2P632

0.068 μF, ±5 %, 50 V, Plastic

0.015 μF, ±5 %, 50 V, Plastic

1 μF, 50 V, Elect.

ÅI 25055676

Socket

P551

NTM-4PDML230, Speaker

C423,C424,C603 354780109

100 μF, 6.3 V, Elect.

0.022 μF, ±5 %, 50 V, Plastic

2.2 μF, 50 V, Elect.

C425,C426

C429,C430

C491,C492

C493,C494

C495,C496

C501,C502

371121544

354742209

354742219

354741019

354761019

354741009

0.15 μF, ±5 %, 50 V, Plastic

22 μF, 16 V, Elect.

220 μF, 16 V, Elect.

100 μF, 16 V, Elect.

100 μF, 35 V, Elect.

10 μF, 16 V, Elect.

JL504B

25050270

Fuse holder

25050065

Fuse label

29361919

Clamp

27190608-1 UA-0 V0

Heat sink

27160250

82143010

NSCT-6P98

DIGITAL OUTPUT TERMINAL PC BOARD

(NAETC-6882-1A/-1B/-1C/-1D)

CIRCUIT NO.

F901A,F901B

F901A

YSH403T

100 μF, 6.3 V, Elect.

PART NO.

Photo couplers

24120082

22240935R2

Coil

231237K220R2 NCH-1477

Capacitor

354741019

Plug

25055624

Socket

25051235

Jack

25045567

25045575

DESCRIPTION

2.2 μF, 50 V, Elect.

680 pF, ±5 %, 50 V, Plastic

22 μF, 35 V, Elect.

0.47 μF, 50 V, Elect.

0.047 μF, ±5%, 50 V, Plastic

1500 pF, ±5 %, 50 V, Plastic

NTC-20P09, Trimming capacitor (Clock adj.)

100 μF, 6.3 V, Elect.

DX-5R5L104, Super capacitor

T400MAL250V, Fuse label <P,GR,GT,PT>

U691

U692

GP1FA550TZ

GP1FA550TZ<P,DT,GR,GT,PT>

C505,C506,C601 354744709

47 μF, 16 V, Elect.

P901C

C509-C510

C515,C516

354722219

354741009

Resistors

5104333

220 μF, 6.3 V, Elect.

10 μF, 16 V, Elect.

Q691

L691

C354

C355

C703

C710

TC7WU04FU<P,DT,GR,GT,PT>

Q903A

Q903B

RAD-81

3P+10FN(BC)

R427

N16RG100KBT25F, Volume

354721019

3000078

Resistor

5210263

Sockets

R491,R492

R493,R494

R495

443625614

443522204

443521024

443528214

443523904

443523304

443523904

Jacks

560 Ω±5 %, 1 W, Metal oxide

22 Ω±5 %, 1/2 W, Metal oxide

1k Ω±5 %, 1/2 W, Metal oxide

820 Ω±5 %, 1/2 W, Metal oxide

39 Ω±5 %, 1/2 W, Metal oxide

33 Ω±5 %, 1/2 W, Metal oxide

39 Ω±5 %, 1/2 W, Metal oxide

DISPLAY CIRCUI PC BOARD (NADIS-6879-1A/-1B/-1C/-1D)

CIRCUIT NO.

C691

C711

100μF, 16 V, Elect.

PART NO.

FL Tube

212141

Remote sensor

241330

Transistor

2214490R2

LED

DESCRIPTION

JL405B

P405B

P406

R123

N06HR20KBC, Trimming register

NPLG-3P586<D>

NSCT-10P1025

R496

Q751

10BT-167GK

JL903A

P351A

P701A

P778

NSCT-3P874

25051087

25052212

25052232

25052211

2002391815

Plugs

25055045

25055038

25055149

25055150

25055807

25055705

25055706

Terminal

25060061

R519-R522

R533,R534

R535,R536

NSCT-16P2109

NSCT-36P2129

NSCT-15P2108

NSAS-18P0666

U751

PIC-26043TE2

NPJ-1PDBL382<D>

NPJ-4PDRW389<P,DT,GR,GT,PT>

Q782

RN1404

P901A

P400, P401

P402

25045575

25045581R0

Sockets

NPJ-4PDRW389

HSJ1501-010010, RI Jack

CD CIRCUIT PC BOARD (NAAR-6875-1A/-1B/-1C/-1D)

CIRCUIT NO.

D782

225381

SEL2210R-TP1

P104

P105

NPLG-4P33

NPLG-2P29

PART NO.

ICs

DESCRIPTION

Capacitor

353721019

Resistors

443523314

Jack

P403B

P404B

25051529

25051234

Plug

NSCT-18P1316

NSCT-9P1024

C752

100 μF, 6.3 V, Elect.

330 Ω±5 %, 1/2 W, Metal oxide

LGT1516-0101, Head phone jack

Q101

Q102

Q103

Q180

Q301

Q701

Q704

P302A

P303A

P403A

P404A

P405A

NPLG-5P133

NPLG-6P134

NPLG-18P763

NPLG-9P661

NPLG-10P662

22241499R3

22241247

22240239

22241302

22241500R3

22241502R3

22240239

Transistors

2212853

CXA1992BR

LA6541D

TA7291S

BU1923

CXD2589Q

MPD78045FGF-119-3B9

TA7291S

R567,R568

P553

JL501A

25055631

NPLG-10P593

25045396

Sockets

POWER SUPPLY PC BOARD (NAPS-6878-1A/-1B/-1C/-1D)

CIRCUIT NO. PART NO.

ICs

DESCRIPTION

JL552B

P701B

25051089

25052232

Push switches

25035699

FL Holder

27191111

NSCT-5P876

NSCT-36P2129

TP01

Terminal PC (clock /adjust)

CONNECTOR PC BOARD (NAETC-6883-1A/-1B/-1C/-1D)

CIRCUIT NO.

Q901

Q903

222780125

222780565

Transistors

2211503 or

2211504

78M12HF

78M56

Q110,Q112

Q111,Q703

Q114

Q181,Q184

Q182,Q183

Q185,Q186

Q191

DESCRIPTION

2SB1068-K

RN1404

2SA950-Y

RN2404

RN1441

PART NO.

Sockets

25052249

25051796A

S751- S762

Q751A

NPS-111-S662

FL Holder

2214490R2

2211504

P351B

P352A

NSCT-16P2146

NSCT-16P1583

2214550R2

2215410R2

2213143R2

2214540R2

Q902

2SA950-O or

2SA950-Y

DTC123JS

Q904

2213640

POWER AMPLIFIER PC BOARD (NAAF-6880-1A/-1B/-1C/-1D)

THE COMPONENTS IDENTIFIED BY THE MARK ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE ONLY WITH PART NUMBER SPECIFIED.

2SC2712-O

RN2403

Diodes

CIRCUIT NO.

Q551,Q552

Q553,Q554

Q555-Q556

PART NO.

Transistors

2213284 or

2215864

2211653 or

2211654

DESCRIPTION

Q702

D901

22380022F or RBV402 or

22380271F

22380260 or

22380035

D3SBA20

RL1N4003 or

GP104003E

2SC1740S-R or

KTC3199-GR

2SC2235-O or

2SC2235-Y

2SA965-O or

2SA965-Y

D902-D908

<D>

<DT>

<GR>

<GT>

USA & Canadian models only

: Taiwanese model only

: European model only

: Chinese model only

: Asian model only

D909

D910

D911

224492700R2 UDZ27B

224490510R2 UDZ5.1B

2211643 or

2211644

223234R2

1SS352

CAUTION : Replacement of the transistor of mark ,if necessary, must be

made from the same beta group(HFE) as the original type.

－27 －

－28 －

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CR-305X

P29

5-A

SCHEMATIC DIAGRAM (AMPLIFIER SECTION)

P29

5-B

P34

5-G

P34

5-G

P33

4-C

P30

1-H

P34

3-G

－29 －

－30 －

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CR-305X

PRINTED CIRCUIT BOARD VIEW 1

POWER SUPPLY PC BOARD (NAPS-6878)

Component side

Soldering side

SELECTOR CIRCUIT PC BOARD (NAAF-6874)

Component side

SPEAKER TERMINAL PC BOARD (NAETC-6881)

Component side

Soldering side

DIGITAL OUTPUT PC BOARD (NAETC6882)

Component side

Soldering side

－31 －

－32 －

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CR-305X

SCHEMATIC DIAGRAM (CD & MICROPROCESSOR SECTION)

P29

3-B

P30

5-E

P34

5-G

P33

4-B

P29

4-D

P29

3-A

P29

3-B

－33 －

－34 －

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CR-305X

PRINTED CIRCUIT BOARD VIEW 2

U3 DISPLAY CIRCUIT PC BOARD (NADIS-6879)

Component side

U8 CD CIRCUIT PC BOARD (NAAR-6875)

Component side

Soldering side

－35 －

－36 －

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CR-305X

PRINTED CIRCUIT BOARD VIEW 3

U4 POWER AMPLIFIER PC BOARD (NAAF-6880)

U9 CONNECTOR PC BOARD

Component side

(NAETC-6883)

U8 CD CIRCUIT PC BOARD (NAAR-6875)

Soldering side

Component side

Soldering side

－37 －

－38 －

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CR-305X

CD ADJUSTMENT PROCEDURES

CLOCK ADJUSTMENT PROCEDURES

Preparation

1. Connect the frequency counter to the terminal TP01 on main PC board (NAAR-6875)

2. Press and hold down the MEMORY button , then press the DISPLAY button.

(All segments on FL tube light on)

Set the trimming resistors R123 to center.

Focus gain adjustment

3. Adjust the trimmer capacitor C703 so that the reading of frequency counter becomes 524.288 kHz 1Hz.

1. Set the output of the audio oscillator to 1 kHz and 1～1.5 VP-P

2. Connect the oscilloscope and audio oscillator as shown below. (Refer to Fig-1)

3. Load the test disc YEDS-18 on the tray and play the track 2.

4. Adjust the trimming resistor R123 so the signal of channel 2 on the oscilloscope becomes 1.25 times of channel 1.

(Refer to Fig-2)

Trimmer capacitor C703

5. Remove the oscilloscope and audio oscillator.

* The adjustment of focus offset adjustment is unnecessary.

524,287 524,289 Hz

C703

Trimming resistor R123

Freqency counter

P105

F-GAIN

R123

TEST POINT

P104

TIMER

W.DAY

W.END MEMORY

REC REPEAT

SLEEP RANDOM

TRACK AUTO MONO

AM PM

RDS

STEREO

MUTING

S.BASS

DIRECT

C D

MIN

kHz

MHz

Display

Fig-1

Test point

P104

FE1 FE2 TE1 TE2

Test point

P105

GND

ch 1 GND

ch 2 GND

Audio oscillator

Oscilloscope

Fig-2

－39 －

－40 －

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CR-305X

ASSEMBLING OF PAD

PACKING VIEW

Pad is folded.

Pad(S) is folded.

PAD (Part No. 29091922A)

PAD (S) (Part No. 29091923A)

: Line shows folding direction

Pin mark

Pin mark display side

PACKING VIEW PARTS LIST

REF.NO. PART NO.

DESCRIPTION

REF.NO. PART NO.

DESCRIPTION

29100097-1A

292142

Poly bag 350*250

FM antenna<D>

29053603B

29053649A

29053604B

29362647

29362646

29091922A

29091923A

29095835

29110149

282301

Carton box<D,DT,GT>

Carton box<GR>

Carton box

Label UPC<D>

Label EAN<GR,GT,P,DT>

Pad

Pad (S)

Sheet 0.515*650*550

Tape

Staple

292116

FM antenna<GR,GT,P,DT>

Instruction manual E

Instruction manual U3FSI

Instruction manual U3GDSW

Instruction manual T<GR,GT,DT>

YAE21-0237,Antenna adapter<GR,GT,P,DT>

29342905

29342906

29342907

29342926

25065462

Pad and Pad(S) are combined.

<D> : USA & Canadian models

<DT> : Taiwanese model only

: European model only

<GR> : Chinese model only

<GT> : Asian model only

NOTE :

29110141

24140421

3010054

PP Tape

RC-421S, Remote controller

Battery, UM-3

NMA-3057,AM Loop antenna

Pad

232140

Pad(s)

Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN

Tel: 072-831-8111 Fax: 072-833-5222

ONKYO U.S.A. CORPORATION

200 Williams Drive, Ramesy, N.J. 07446, U.S.A.

Tel: 201-825-7950 Fax: 201-825-8150 E-mail: [email protected]

ONKYO EUROPE ELECTRONICS GmbH

Industriestrasse 20, 82110 Germering, GERMANY

Tel: 089 84 93 20 Fax: 089 84 93 226 E-mail: [email protected]

Completed

ONKYO CHINA LIMITED

Units 2102-7, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,

N.T., HONG KONG Tel: 852 2429 3118 Fax: 852 2428 9039

HOMEPAGE

http://www.onkyo.co.jp/

Side view

bottom view

Top view

PN 0M3654 N010 Printed in Japan

－41 －

－42 －

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