DAEWOO AKL-3010 Service Manual
Service Manual
Car Audio
S/M No : AKL0108EF0
MODEL : AKL-0108 Series
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
Local/DX Switch
Loudness Control
Logic cassette Player
Detachable Face for Anti-Theft
10 CD-changer control(option)
3010 Seires
AKL-3010RC
ACL-3010RC
AKL-3010RDS
AKL-3010C
AKL-3010
0106 Series
AKL-0106A
LOUD
SCAN
DISP
TABLE OF CONTENTS
1. PRODUCT SPECIFICATIONS ..................................................1
2. LINE DRAWING ........................................................................2
3. ADJUSTMENTS ........................................................................3
4. SCHEMATIC DIAGRAM ............................................................7
5. PARTS LOCATION ON P.C.BOARD ......................................8
6. OVERALL EXPLODED VIEW & PARTS LIST .......................11
7. DECK MECHANISM EXPLODED VIEW & PARTS LIST .......12
8. PARTS LIST ............................................................................15
9. FUNCTION OF MICOM IC .....................................................18
10. IC BLOCK DIAGRAM .............................................................24
11. LIQUID CRYSTAL DISPLAY ..................................................28
12. OUTPUT CONNECTION DESCRIPTIONS ............................29
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
TAPE SECTION
Track format : 2-track / 2-channel system
Tape speed : 4.75cm/sec
Wow / Flutter : 0.35%max. (WRMS)
Frequency response : 63Hz ~ 10kHz (+3dB) normal (LH)tape
Signal to noise ratio : 50dB
Channel separation : 35dB
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) : 1.75Kg
Design and specifications are subject to changes for improvements without notice.
2
2. LINE DRAWING
2-1. FRONT SIDE
2-2. REAR SIDE
AKL-3010RC
- RDS Function
- 4-Channel high Power (40W x 4Ch)
- Electronic Tuning
- Electronic Volume /Bass /Treble
/Balance /Fader Control
- Local/DX Switch
- Loudness Control
- Logic cassette Player
- Detachable Face for Anti-Theft
- 10 CD-changer control
LOUD
SCAN
DISP
- Basic Funtion
- 4-Channel high Power (40W x 4Ch)
- Electronic Tuning
- Electronic Volume /Bass /Treble
/Balance /Fader Control
- Local/DX Switch
- Loudness Control
- Logic cassette Player
- Detachable Face for Anti-Theft
- 10 CD-changer control
AKL-3010C
3.
ADJUSTMENTS
3
3-1. TUNER MODULE ADJUSTMENT LOCATIONS
CAT-7 (3 Band)
CAT-6 (2 Band)
ADJUSTMENTS
3-2. MW / LW ADJUSTMENT METHOD
4
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
3-3. FM ADJUSTMENT METHOD
5
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
6
3-4. TAPE ADJUSTMENT METHOD
NOTE : 1. Clean the playback head before adjustment
2. Prepare the test tape MTT-114 or equivalent
3. Balance, Fader, Bass & Treble ....Center position. Volume adjusted to 2Volts.
STEP
1
Head azimuth
adjustment
Tape Speed
MTT-114N
or equivalent
MTT-114N
or equivalent
Speaker
Output
Speaker
Output
Head azimuth
adjustment screw
Turn the azimuth
screw to obtain
maximum level
Adjust for 30103020Hz
Tape Speed
adjustment
2
DESCRIPTION
TEST TAPE
TEST
POINT
ADJUSTMENT
POINT
ADJUSTMENT
Note : dBu uV dBu uV
17 5.0 33 44.6
16 6.31 35 56.2
30 31.6 45 178
NOTE : Antenna signal is used.
1. For Signal Generator with readings in
EMF(Open type) add 12dB (6dB for the
“Dummy” and 6dB for EMF-reading).
2. For Signal Generator with reading in dBm add 6
dB for “Dummy”
7
4. SCHEMATIC DIAGRAMS
OPTION
RDS Function
CDC Function
5-1. PCB MAIN
8
5. PARTS LOCATION ON P.C. BOARD
PART SIDE
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