DAEWOO ACP-0206A, CDP-0206R, ACP-5020RDS, ACP-5020RC, ACP-5020C Service Manual

...

Service Manual

Car Audio

S/M No : ACP0208EF0

MODEL : ACP-0208/0218 Series

0206Series 5020Series 5025Series

DAEWOO ELECTRONICS CO., LTD

http://svc.dwe.co.kr Mar. 2001

4-Channel high Power (40W x 4Ch) Electronic Tuning Electronic Volume/Bass/Treble/Balance/Fader Control 42 Memory Capability (18FM+12MW+12LW) Local/DX Switch Loudness & Mute Control Compact Disc Player Flip-Down Detachable Face for Anti-Theft 10 CD-changer control(Option) Telephone Mute Control

CDP-0206R ACP-5020RDS ACP-5020RC ACP-5020C ACP-5020

CDP-0205A ACP-5025RDS ACP-5025RC ACP-5025C ACP-5025

ACP-0206A

TABLE OF CONTENTS

1. PRODUCT SPECIFICATIONS ..................................................1

2. LINE DRAWING ........................................................................2

3. EMERGENCY TROUBLE SHOOT ............................................3

4. ADJUSTMENTS ........................................................................6

5. SCHEMATIC DIAGRAM ..........................................................11

6. PARTS LOCATION ON P.C.BOARD ......................................12

7. OVERALL EXPLODED VIEW & PARTS LIST .......................16

8. DECK MECHANISM EXPLODED VIEW & PARTS LIST ......17

9. ELECTRICAL PARTS LIST..........................................21

10. FUNCTION OF MICOMIC.....................................................27

11. IC BLOCK DIAGRAM ..........................................................33

12. LIQUID CRYSTAL DISPLAY ..................................................37

13. OUTPUT CONNECTION DESCRIPTIONS ............................38

1. PRODUCT SPECIFICATIONS

AUDIO SECTION

Maximum output power : 40watts per channel into 4 ohms. Load impedance : 4 ohms or 8 ohms Total harmonic distortion : Less than 10% at 12 watts Frequency response : 100Hz( + 3dB), 10kHz(-5 + 3dB) Control Bass/Treble : 10 + 3dB at 100Hz/10kHz

CD PLAYER SECTION

System : 2-track / 2-channel system Total harmonic distortion : 0.35%max. (WRMS) Signal to noise ratio(network) : 63Hz ~ 10kHz (+3dB) normal (LH)tape Wow and flutter Below measurable limit Laser Diode Properties : Meterial

Ga AIAS Wave length 760-800 mm Emission Duration Continuous Laser out-put Power Less than 44.6 W

TUNER SECTION

(FM) Tuning range : 87.5 to 108MHz

Sensitivity : 10dBuV Stereo separation : 30dB Signal to noise ratio : 55dB Frequency range : 87.5 ~ 108MH

: 522 to 1620KHz at Europe

(MW) Tuning range : 530 to 1710kHz at U.S.A

Sensitivity : 28dBuV Signal to noise ratio : 50dB Frequency range : 522 ~ 1620KHz Channel space : 9KHz (or 10KHz at U.S.A)

(LW) Tuning range : 144 to 288KHz

Usable Sensitivity : 40dBuV

GENERAL

Power requirements : DC 13.8V (10.8 ~15.6V allowable)

Negative ground Spdaker impedance : 4 or 8 ohm Output power : Maximum 40Wx4Ch. Current consumption : 10A

Dimension (W x H x D) : 178 x 50 x 156 mm Chassis size : 195 x 64 x 14.6 mm

Weight(Net) : 1.4Kg

Design and specifications are subject to changes for improvements without notice.

2. LINE DRAWING

2-1. FRONT SIDE

2-2. REAR SIDE

ACP-0208/0218 RDS Series

- RDS Function

- Compact Disc Player

- 4-Channel high Power (40W x 4Ch)

- Electronic Tuning

- Electronic Volume /Bass /Treble /Balance /Fader Control

- 42 Memory Capability (18FM+12MW+12LW)

- Local/DX Switch

- Loudness & Mute Control

- Logic cassette Player

- Flip-Down Detachable Face for Anti-Theft

- 10 CD-changer control

- Telephone Mute Control

ACP-0208/0218 BASIC Series (Non RDS Function)

- Basic Function

- Compact Disc Player

- 4-Channel high Power (40W x 4Ch)

- Electronic Tuning

- Electronic Volume /Bass /Treble /Balance /Fader Control

- 42 Memory Capability (18FM+12MW+12LW)

- Local/DX Switch

- Loudness & Mute Control

- Logic cassette Player

- Flip-Down Detachable Face for Anti-Theft

- 10 CD-changer control

- Telephone Mute Control

Multicolor Graphic Display :ACP-5020C, 5020 *CDP-0206R *ACP-0206A Non MCGD :ACP-5025C, 5025 *CDP-0205A

Multicolor Graphic Display

: ACP-5020RDS, 5020RC

Non MCGD :ACP-5025RDS, 5025RC

3. EMERGENCY TROUBLE SHOOT

3-1. General Function

No sound from speakers

Yes

Output connector is missing

Output connector is inferior goods

Put exactly output connector in.

Change output connector to superior goods

Yes

Power IC, Output Socket is inferior goods

Change Power IC, Output Socket to superior goods

Yes

L.C.D or Lamp is not turned off.

Yes

Power is not supplied

Return to

Output voltage of power IC is little.

Change Regulator IC and check output voltage.

Yes

LCD or Lamp is inferior goods.

Change LCD or Lamp to superior goods.

Yes

Different each channel have output level (Front, Rear, Left, Right)

Treble or Bass is low unusually

Yes

Balance of front and rear is in one side

Balance of Left, Right is in one side.

Re-adjust Balance of front, rear

Ref.

Balance = Center Front / Rear

Ref.

Balance = Center Left / Right

Ref.

Balance = Center Treble / Bass

Ref.

Regulator IC output Voltage = V

Ref.

Electrical Parts List L.C.D., Lamp

Re-adjust Balance of Left, Right

Yes

Balance of Treble or Bass is in one side.

Re-adjust Balance of Treble or Bass

Yes

EMERGENCY TROUBLE SHOOT

3-2. Tuner Function

Hearing noise only

Yes

No selected the station

Tuner Module is inferior goods.

Select exactly broadcasting frequency.

Change tuner module to superior goods.

Yes

Weak frequency area caused by elevations

Change to goods of R.D.S function.

Yes

Station in other regions are not held.

Yes Yes

No selected the local stations.

Return to or

Extreme noise in broadcast

Weak separation of FM stereo

Yes

Antenna connector is missing

Put exactly antenna connector in his jack

Ref.

CAT-7 or 6 Adjustments/Tuner

Function of autoswitch noise reduction

Ref.

Yes

Weak frequency area of FM, MW

Switch automatically to mono mode in weak frequency area

Yes

In case of located Glass Antenna, check if heat wire is cut or not in rear window.

Check Antenna connector part.

EMERGENCY TROUBLE SHOOT

Disc is not inserted.

Yes Yes

There is Disc in the slot

Take out Disc from the slot

Disc is inferior goods

Use only superior disc

Yes

Selection time is longer than unusually

Yes

Selected PAUSE function

Release PAUSE function

Yes

Selected MUTE function

Release MUTE function

Yes

Mechanism is inferior goods

Change Mechanism to superior goods

Turn power on again after turn off.

Yes

Inspect disc for scratches.

Yes

No sound

Yes

disc was inserted upside down

Insert CD with label side down

Ref.

DWEC CD Mecha DCM-200/201

Ref.

Power Off/On Hard Reset

Disc is dirty

Wipe with cleaning cloth

Yes

Ref. Point

Disc is stopped under eject

Yes

It is normal for CD-Deck or the slot

Yes

3-3. CD Function

ADJUSTMENTS

4-1. TUNER MODULE ADJUSTMENT LOCATIONS

CAT-7 (3 Band)

CAT-6 (2 Band)

ADJUSTMENTS

4-2. MW / LW ADJUSTMENT METHOD

STEP

Band Covering

Range

522 KHz

603 KHz

V.T point of

AM Board

Output

522 KHz

450 KHz

603 KHz

AMOSC

MAXIMUM

1620 KHz

1620 KHz -

7.6V

MAXIMUM

AMIF

AMRF1 AMRF2

1404 KHz

Output

1404 KHz

MAXIMUM

AMRF1 AMRF2

TRACKING

ALIGNMENT

TUNING

TEST

POSITION

SSG

FREQUENCY

ALIGNMENT

INDICATOR

Band Covering

Range

144 KHz

LWOSC

MAXIMUM

TRACKING

220 KHz

Output

220 KHz

LMRF1 LMRF2

MAXIMUM

ADJUSTMENTS

4-3. FM ADJUSTMENT METHOD

STEP

1 IF adjust

MPX IC

Separation

Control

98.1 MHz, ANT input 60dBu, 1kHz (30% MOD) FM SSG

ANT jack and GND

98.1 MHz, ANT input 40dBu, 1kHz (L+R=45%

L-R=45%

PILOT=10% MOD)

The voltage

between CW03

L or R CH SP.

output wire

VTVM and Scope

FM DET

BLEND

Adjust for 0V

0.05V

L, R separation 8dB

SUBJECT

FEED SIGNAL

FROM

MEASURE

OUTPUT

ADJUST

POINT

ADJUSTMENT

ADJUSTMENTS

Definition of Mechanical Mode

STOP MODE

MODE

PLAY MODE

EJECT

MODE

- Disc haven’t been inserted or disc have been ejected. When disc shall be transported into the unit Mechanism shall be fixed at this mode.

- Loading device can insert disc thru the slot.

- Floating device being locked.

- Disc have been inserted thru the slot in front of unit. It is transient state between STOP mode and PLAY mode.

- If disc should be inserted at the state of POWER ON, disc shall be loaded by a series of operation of specified device.

- After disc have being clamped on the turn-table, disc shall be rotated.

- Disc shall be played.

- Floating device being unlocked.

- Disc is to be ejected at this mode. It is transient state between PLAY mode and STOP mode.

If disc should be mounted at the state of POWER ON and commanded by EJECT key, disc shall be ejected thru the slot by a series of operation of specified device.

MODE DEFINITION & STATUS

Standard values / Play-ability test

Loading Time

Ejecting Time

Access Time

Disc Take-up Force

Disc

7sec + 3sec

6sec + 3sec

17 sec

15 sec

5 sec

> 120g > 120g

> 80g

> 90g

During play in

low temp.

> 70g

During play in

low temp.

From insertion up to make sound. (TCD-784)

From track No.1 Between the EJECT command and the disc eject completion. (TCD-784)

From out-most Track, Between the PLAY command of in-most Track and marking sound.

Shall be measure when the center of Disc is correspond with the center of Roller.

ITEMS

CONNEC

TION

SPECIFIED VALUES, CONDITIONS

STANDARD VALUES RELIABILITY LIMITS

TEST CONDITIONS, REFERENCES

4-4. CDP MODE TEST & ADJUSTMENT METHOD

12 13

Anti-Vibrational Performance

Playability

Disc Deflection

Disc Eccentricity

Jitter Frequency

Response Harmonic

Distortion Dynamic

Range S/N Ratio

Channel

+ 0.4mm

+ 0.21mm

< 28 nsec

< 0.03% at 1kHz

> 80dB at 1kHz

> 85dB at 1kHz

> 70dB at 1kHz > 65dB at 1kHz

> 85dB at 1kHz

> 75dB at 1kHz

< 0.05% at 1kHz

20-20kHz + 2dB 20-20kHz + 3dB

< 33 nsec

+ 0.21mm

+ 0.4mm

equal with

standard values

-Interruption:0.7mm

-Block Dot Disc:0.8mm

-Scratch Disc:1mm

Finger Print Disc:65um

>1.0g/10Hz-20Hz, Z way >2.0g/30Hz-200Hz, Z way >0.6g/10Hz-20Hz, X&Yway >1.2g/30Hz-200Hz, X&Yway X=side to side Y=front to back Z=up to down

Z way only

10Hz-20Hz:0.7g

30Hz-200Hz:1.2g

-The G level should be upped to the sound skip level from the less level slowly at the frequency.

-Ignore the sound skip at the near of resonance frequency(about 100Hz).

-In playing YEDS-10 Tr #5, shall perform with vibration

-No sound skipping.

-No sound skipping in the specified range.

-The sound skipping does not include any interpolating noise.

-No sound skipping at the ABEX 731RA Tr No8

-The sound skipping does not include any interpolating noise.

-Except from specified item due to the reliability limits of TEST DISC in the HTO TEST.

-No sound skipping at the ABEX 713 Tr No8

-The sound skipping does not include any interpolating noise.

-Except from specified item due to the reliability limits of TEST DISC in the HTO TEST.

This measurement may be done at 20Hz, 20kHz, (1kHz=0dB)

400Hz HIGHPASS FILTER 20kHz(-60dB 24kHz) LOWPASS FILTER

20kHz(-60dB 24kHz) LOWPASS FILTER, 60dB AMP IHF-A WEIGHTING FILTER

400Hz HIGHPASS FILTER 20kHz (-60dB 24kHz)LOWPASS FILTER

ITEMS

CONNEC

TION

SPECIFIED VALUES, CONDITIONS

STANDARD VALUES RELIABILITY LIMITS

TEST CONDITIONS, REFERENCES

Mechanical

Noise

Loading Eject

< 75dB(A) Play < 40dB(A) Access < 70dB(A)

If anything is not

error, shall not

defined.

-Test should be performed in no reverberation room at the noise level of less than 20dB(A).

-Test should be performed at the 50cm in front of the unit.

-IHF-A MODE (RMS-FAST)(TCD-792D)

Clamping Force

> 130g

ADJUSTMENTS

5. SCHEMATIC DIAGRAMS

OPTION

RDS Function

CDC Function

for ACP-0208Seires,

ACP-0218 Series

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