Daewoo AKR-0106A User manual

1010 Series
AKR-1010RC
ACR-1010RC
AKR-1010RDS
AKR-1010C
AKR-1010
Service Manual
Car Audio
S/M No : AKR0108EF0
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 Control
Mechanical cassette Player
Detachable Face for Anti-Theft
10 CD-changer control (option)
MODEL : AKR-0108 Series
0106 Series
AKR-0106A

TABLE OF CONTENTS
1. PRODUCT SPECIFICATIONS ..................................................1
2. LINE DRAWING ........................................................................2
3. EMERGENCY TROUBLE SHOOT ............................................3
4. ADJUSTMENTS ........................................................................6
5. SCHEMATIC DIAGRAM ..........................................................10
6. PARTS LOCATION ON P.C.BOARD ......................................11
7. OVERALL EXPLODED VIEW & PARTS LIST .......................14
8. DECK MECHANISM EXPLODED VIEW & PARTS LIST .......15
9. PARTS LIST ............................................................................18
10. FUNCTION OF MICOM IC .....................................................22
11. IC BLOCK DIAGRAM .............................................................28
12. WIRING DIAGRAM ...............................................................32
13. LIQUID CRYSTAL DISPLAY ..................................................33
14. OUTPUT CONNECTION DESCRIPTIONS ............................34

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 : 12dBuV
Stereo separation : 30dB
Signal to noise ratio
: 55dB
Frequency range : 87.5 ~ 108MHzII
Channel space : 50KHz at Europe
(MW) Tuning range : 522 to 1620kHz at Europe
(530 to 1710KHz at U.S.A)
Sensitivity : 30dBuV
Signal to noise ratio
: 50dB
Frequency range : 522 ~ 1620KHz
Channel space : 9KHz
(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 x64 x14.6 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
AKR-1010RC
- RDS Function
- 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 Control
- Mechanical cassette Player
- Detachable Face for Anti-Theft
- 10 CD-changer control
AKR-1010C AKR-0106A
- Basic Function
- 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 Control
- Mechanical cassette Player
- Detachable Face for Anti-Theft
- 10 CD-changer control

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
Electrical Parts List
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.

5
EMERGENCY TROUBLE SHOOT
3-3. Tape Function
No sound from
speakers
Yes
No
Yes
Tape is inferior
goods
No signal play
output
Use only superior
goods
Put exactly deck
output connector
in.
Yes
No
Deck Mechanism
is inferior goods.
Change Deck
Mechanism to
superior goods.
Yes
A
A
Sound is low or
not clear
Yes Yes
Head is dirty
Return to
Clean head or
pinch roller with
cleaner
Tape is not
inserted into
the slot.
Yes
No
Yes
Tape was inserted
right side left.
Tape is ejected
after being
inserted.
Insert recording
part to right side.
Ref.
Tape Deck Macha
ADC-2385
Ref.
Tape is cut or
extended
Yes

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
4-4. TAPE ADJUSTMENT METHOD
9
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
1Head azimuth
adjustment
Tape Speed MTT-114N
or equivalent
MTT-114N
or equivalent
Speaker
Output
Speaker
Output
Head azimuth
adjustment screw
(Fig. 1)
Turn the azimuth
screw to obtain
maximum level
Adjust for 3010-
3020Hz
Tape Speed
adjustment
(Fig. 1)
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”
[ Fig. 1 ]

10
5. SCHEMATIC DIAGRAMS for AKR-1010 & AKR-0106 Series
OPTION
RDS Function
CDC Function

6-1. PCB MAIN
11
6. PARTS LOCATION ON P.C. BOARD
PART SIDE

12
PARTS LOCATION ON P.C. BOARD for AKR-1010 & AKR-0106Series
BOTTOM SIDE

PARTS LOCATION ON P.C. BOARD for AKR-1010 & AKR-0106Series
13
PART SIDE
BOTTOM SIDE
6-2. PCB FRONT

14
7. OVERALL EXPLODED VIEW & PARTS LIST
for AKR-1010 & AKR-0106 Series

15
8. DECK MECHANISM EXPLODED VIEW & PARTS LIST
for AKR-1010 & AKR-0106 Series

DECK MECHANISM EXPLODED VIEW & PARTS LIST
for AKR-1010 & AKR-0106 Series
16
8-2. PARTS LIST for ADC-2385
No PART LISTPART NAME
Q’TY
A ASS’Y-CASE
SPRING-F
ASS’Y CASE L/P
SCREW (M2*4)
SPRING L/P
SPRING E/P
WASHER(1.6*3.5*0.25T)
CASE E/P
ARM-C
CASE CASSETTE
HOLDER-C
ASS’Y-CHASSIS REEL
ASS’Y ARM PLAY
WASHER(1*3.2*0.25T)
GEAR CLUTCH 1
FELT CLUTCH
GEAR CLUTCH 2
SPRING CLUTCH
CLUTCH BODY
WASHER(1.2*3.5*0.5T)
GEAR CAM
WASHER(1.2*3*0.25T)
GEAR SENSOR
WASHER(1.2*3*0.25T)
GEAR 19.6B
WASHER(1.2*3.2*0.35T)
GEAR REEL
SENSOR PULLEY
SPRING B/T
WASHER(1.2*3*0.25T)
GEAR PLAY-B
ARM SENSOR
ASS’Y CHASSIS REEL
SCREW(M2*4)
SPRING SWITCH
LEVER SWITCH
SPRING TRIGGER
MT90-24010K
6107-000323
MT75-00047X
6003-000305
6107-000369
6107-000339
6031-000446
MT70-00439B
MT72-00027A
MT70-00076A
MT70-00438T
MT90-23020A
MT90-11011A
6031-001032
MT72-00331N
MT74-00091C
MT72-00331P
6107-001021
MT72-00046A
6031-000575
MT72-00331M
6031-000431
MT66-00025A
6031-000431
MT66-00017A
6031-000433
MT72-00379D
MT72-00126A
6107-000191
6031-000431
MT72-00379C
MT72-00331G
MT75-00047K
6003-000305
MT61-00002A
MT70-00438Z
6107-001061
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
1
1
1
3
1
1
1
No PART LISTPART NAME
Q’TY
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
SPRING ARM LOCK
ARM LOCK
SCREW ARM LOCK
PULLEY CENTER
WASHER(1.2*3*0.25T)
SCREW(M2*2.5)
ASS’Y -EJECT A C/K
ASS’Y MOTOR
LEVER EJECT-B
SPRING EJECT-B
SPRING EJECT-A
GEAR 18.6B
ASS’Y FLYWHEEL(option)
BELT(120.2)
WASHER(2.1*5*0.5T)
SPRING LEVER PLAY
LEVER PLAY
ASS’Y CHASSIS MAIN
ASS’Y PCB HEAD
SCREW(2*3.7)
WASHER(1.9*3.2*0.25)
E-RING( 1.5)
WASHER(2.1*4*0.4T)
ASS’Y ARM C/R
ASS’Y PINCH R
ASS’Y PINCH F
LEVER PRO
WASHER(2.1*4*0.4T)
SPRING LEVER PRO
ASS’Y BASE FF/REW
WASHER(1.2*3.2*0.35T)
LEVER LOCK
SPRING LEVER LOCK
ASS’Y BASE FR C/K
WASHER(2.1*5*0.5T)
STOPPER LEVER
SCREW(M2*4)
6107-000249
MT72-00380G
6009-000333
MT72-00104A
6031-000431
6001-001048
MT75-00047U
MT90-11010N
MT70-00438R
6107-001023
6107-001022
MT66-00016A
MT91-01011B
6602-000106
6031-001082
6107-001028
MT70-00438W
MT90-02013J
MT91-21013R
6003-000322
6031-000464
6044-000272
6031-000486
MT90-11010P
MT90-15010E
MT90-15010D
MT70-00438P
6031-000486
6107-001026
MT75-00050A
6031-000430
MT70-00438Y
6107-001048
MT75-00047V
6031-001082
MT72-00379E
6003-000305
1
1
1
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
A
B
C

17
No PART LISTPART NAME
Q’TY
72 SPRING FF/REW
LEVER FF
SPRING FF/REW
LEVER REWIND
ASS’Y BASE HEAD
SCREW AZIMUTH
SCREW (M2*5.5)
SPRING PINCH
SPRING BASE HEAD
ASS’Y BASE HEAD C/K
PLATE HEAD-B
HOLDER H/B
PLATE HEAD-A
SCREW AZIMUTH
HEAD(TC860CP)
SPRING AZIMUTH-R
SPRING AZIMUTH-F
SCREW(M2*3)
STOPPER AZIMUTH
SPRING EJECT
SCREW(M1.7*2)
EJECT STOPPER
ASS’Y BASE FF/REW
LEVER FF
LEVER REWIND
ASS’Y BASE FF/REW
LEVER FF
LEVER REWIND
ASS’Y BASE FF/REW
LEVER FF
LEVER REWIND
ASS’Y FLYWHEEL (D-CAST)
ASS’Y FLYWHEEL (N/S S/F)
ASS’Y -EJECT A C/K
6107-001054
MT70-00487K
6107-001054
MT70-00487L
MT91-02011K
6009-000334
6003-000295
6107-000366
6107-001049
MT90-02013H
MT72-00331K
MT72-00056A
MT72-00079A
6009-000334
MT59-00041L
6107-000345
6107-000201
6002-001011
MT70-00438A
MT61-00007A
MT60-00025A
MT70-00487U
MT75-00051A
MT70-00487Q
MT70-00487R
MT75-00052A
MT70-00495A
MT70-00496A
MT75-00053A
MT70-00487Y
MT70-00487W
MT91-01011K
MT91-01011Q
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PART LISTPART NAME Q’TY
LEVER EJECT-A MT75-00048E 1
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
OPTION 1
OPTION 2
OPTION 3
D
DECK MECHANISM EXPLODED VIEW & PARTS LIST
for AKR-1010 & AKR-0106 Series

9-1. MAIN SECTION
18
9. PARTS LIST
CAUTION is a recommendable part for essential stock.
R
LOCATION
DL101
IC101
IC204
IC301
IC302
IC303
IC304
IC305
L501
RV101
B001
CT101
CT201
DZ101
DZ103
DZ104
DZ301
DZ501
DZ503
DZ504
DZ505
D103
D104
D203
D204
D205
D206
D207
D208
D210
D211
D212
D213
D214
D215
D250
CODE
DLT4H11G41
1SAA6579T-
176S8016X1
1LC75371M-
1TDA8571J-
1BA3121---
1LA3161---
1K1A7808P1
5LC301PA18
RV1417504-
97T65985MA
5XJZ4R332D
5XJZ4R500E
DKTZJ10B--
DKTZJ9R1B-
DKTZJ5R1A-
DKTZJ5R6B-
DKTZJ9R1B-
DKTZJ5R6B-
DKTZJ5R6B-
DKTZJ6R8B-
DKSS133---
DKSS133---
DKSS133---
DKSS133---
DKSS133---
DKN4148---
DKN4148---
DKN4148---
DKSS133---
DKN4148---
DKSS133---
DKN4148---
DKN4004A--
DKN4148---
DKSS133---
NAME
LED
IC AUDIO
IC CHIP CUSTOM
IC CHIP EVR
IC POWER
IC ISOLATION
IC AUDIO TAPE EQ
IC REGULATOR
COIL CHOKE
R SEMI FIXED
PCB MAIN
CRYSTAL QUARTZ
CRYSTAL QUARTZ
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE ZENER
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DIODE
DESCRIPTION
LT4H11G-41 (RED)
SAA6579T
MPP178016AGC-563-3BP
LC75371M MFP36S
TDA8571J-Y
BA-3121
LA-3161
KIA7808PI
37X1X5.2 300UH P EI-19MM
H500K-5X5-6N-PC-BS
197X330XT1.6 / 2
HC-49/S 4.332MHZ 25PPM F
HC-49/S 4.5MHZ 30PPM F
MTZJ 10B 26MM
MTZJ 9R1B 26MM
MTZJ 5R1B 26MM
MTZJ 5R6B 26MM
MTZJ 9R1B 26MM
MTZJ 5R6B 26MM
MTZJ 5R6B 26MM
MTZJ 6R8B 26MM
1SS133 AUTO 26MM
1SS133 AUTO 26MM
1SS133 AUTO 26MM
1SS133 AUTO 26MM
1SS133 AUTO 26MM
KN4148 AUTO 26MM
KN4148 AUTO 26MM
KN4148 AUTO 26MM
1SS133 AUTO 26MM
KN4148 AUTO 26MM
1SS133 AUTO 26MM
KN4148 AUTO 26MM
KN4004A AUTO 26MM
KN4148 AUTO 26MM
1SS133 AUTO 26MM
R
R
R
R
R
R
R
for AKR-1010 & AKR-0106 Series