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

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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
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
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
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
3. EMERGENCY TROUBLE SHOOT
3-1. General Function
No sound from
speakers
Yes
No
Yes
Output connector
is missing
Output connector
is inferior goods
Put exactly output
connector in.
Change output
connector to
superior goods
Yes
No
Power IC, Output
Socket is inferior
goods
Change Power IC,
Output Socket to
superior goods
Yes
A
A
L.C.D or Lamp
is not turned
off.
Yes
No
Yes
Power is not
supplied
Return to
Output voltage of
power IC is little.
Change Regulator
IC and check
output voltage.
Yes
No
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
No
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
Yes
Balance of Treble
or Bass is in one
side.
Re-adjust Balance
of Treble or Bass
Yes
4
EMERGENCY TROUBLE SHOOT
3-2. Tuner Function
Hearing noise
only
Yes
No
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
A
B
A
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
No
Yes
Antenna
connector is
missing
Put exactly
antenna connector
in his jack
Ref.
CAT-7 or 6
Adjustments/Tuner
Function of auto-
switch noise
reduction
Ref.
Yes
Weak frequency
area of FM, MW
Switch
automatically to
mono mode in
weak frequency
area
Yes
B
R1
In case of located Glass Antenna, check if heat wire is cut or not in rear window.
R2
Check Antenna connector part.
EMERGENCY TROUBLE SHOOT
5
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
No
Yes
A
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
No
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
No
No
No
Disc is dirty
Wipe with cleaning
cloth
Yes
A
Ref. Point
Disc is stopped
under eject
Yes
It is normal for
CD-Deck or the
slot
Yes
3-3. CD Function
4.
ADJUSTMENTS
6
4-1. TUNER MODULE ADJUSTMENT LOCATIONS
CAT-7 (3 Band)
CAT-6 (2 Band)
ADJUSTMENTS
4-2. MW / LW ADJUSTMENT METHOD
7
STEP
MW
LW
Band Covering
Range
IF
522 KHz
522 KHz
603 KHz
V.T point of
AM Board
Output
Output
522 KHz
450 KHz
603 KHz
AMOSC
MAXIMUM
1620 KHz
1620 KHz -
7.6V
MAXIMUM
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
144 KHz
LWOSC
MAXIMUM
TRACKING
220 KHz
Output
220 KHz
LMRF1
LMRF2
MAXIMUM
-
ADJUSTMENTS
4-3. FM ADJUSTMENT METHOD
8
STEP
1 IF adjust
MPX IC
Separation
Control
98.1 MHz, ANT
input 60dBu, 1kHz
(30% MOD) FM
SSG
ANT jack
and GND
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
ST
BLEND
Adjust for 0V
0.05V
L, R separation
8dB
2
SUBJECT
FEED SIGNAL
FROM
TO
MEASURE
OUTPUT
ADJUST
POINT
ADJUSTMENT
ADJUSTMENTS
9
Definition of Mechanical Mode
No
1
2
3
4
STOP MODE
LOADING
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
No
1
2
3
4
5
Loading Time
Ejecting Time
Access Time
Disc
Take-up Force
Disc
7sec + 3sec
6sec + 3sec
<
17 sec
<
15 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.
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
10
No
8
9
10
11
12
13
14
15
16
17
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
7
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)
6
Clamping Force
> 130g
> 130g
ADJUSTMENTS
11
5. SCHEMATIC DIAGRAMS
OPTION
RDS Function
CDC Function
for ACP-0208Seires,
ACP-0218 Series
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