Daewoo AMI-329LW/RW User manual

AMI-329LW/RW
AMI-829LW/RW

SAFETY PRECAUTIONS...............................................................................................2
ADJUSTMENTS..............................................................................................................4
EXPLODED VIEW AND PARTS LIST .........................................................................5
WIRING DIAGRAM ...................................................................................................... 7
AMI-329LW/RW ................................................................................................................................................................ 7
AMI-829LW/RW ................................................................................................................................................................ 8
BLOCK DIAGRAM ........................................................................................................9
AMI-329LW/RW ................................................................................................................................................................ 9
AMI-829LW/RW ...............................................................................................................................................................10
SCHEMATIC DIAGRAM ..............................................................................................11
POWER / AMP ....................................................................................................................................11
AMI-329LW/RW ...............................................................................................................................................................11
AMI-829LW/RW ...............................................................................................................................................................12
TUNER(AMI-329LW/RW)..................................................................................................................13
TAPE(AMI-329LW/RW)......................................................................................................................14
CD ........................................................................................................................................................15
AMI-329LW/RW .............................................................................................................................................................. 15
AMI-829LW/RW .............................................................................................................................................................. 16
CONTROL ...........................................................................................................................................17
PCB PATTERN LAYOUT ..............................................................................................18
ELECTRICAL PART LIST .............................................................................................21
AMI-329LW/RW ...............................................................................................................................................................21
AMI-829LW/RW ...............................................................................................................................................................27
TableofContents
1
MINICOMPONENTSYSTEM
AMI-329LW/RW
AMI-829LW/RW

1.SafetyPrecautions
2
WARNING : TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION : TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS
INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"
WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE
(SERVICING) INSTRUCTIONS IN THE LITERATURE
ACCOMPANYING THE APPLIANCE.
CAUTION
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE
EXPOSURE.
LASER SAFETY
THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL
SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
DUE TO POSSIBLE EYE INJURY.
CAUTION: USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
CAUTION : TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION : POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON-
DANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
Important Safety Instructions
- All the safety and operating instructions should be read before
the appliance is operated.
- The safety and operating instructions should be retained for
future reference.
- All warnings on the appliance and in the operating instructions
should be adhered to.
- All operating and use instructions should be followed.
1. Water and Moisture - The appliance should not be used near
water - for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a swimming pool,
and the like.
2. Carts and Stands - The appliance
should be used only with a cart or
stand that is recommended by th
manufacturer.
3. An appliance and cart combination
should be moved with care. Quick
stops, excessive force, and uneven
surfaces may cause the appliance
and cart combination to overturn.
4. Wall or Ceiling Mounting - The appli-
ance should be mounted to a wall or
ceiling only as recommended by the manufacturer.
5. Ventilation - The appliance should be situated so that its
location or position does not interfere with its proper
ventilation. For example, the appliance should not be situated
on a bed, sofa, rug, or similar surface that may block the
ventilation openings; or, placed in a built-in installation, such
as a bookcase or cabinet that may impede the flow of air
through the ventilation openings.
6. Heat - The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
7. Power Sources - The appliance should be connected to a
power supply only of the type described in the operating
instructions or as marked on the appliance.
8. Grounding or Polarization - The precautions that should be
taken so that the grounding or polarization means of an
appliance is not defeated.
9. Power - Cord Protection - Power-supply cords should be
routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
point where they exit from the appliance.
10.Protective Attachment Plug - If the appliance is equipped with
an attachment plug having overload protection. This is a
safety feature. See Instruction Manual for replacement or
resetting of protective device. If replacement of the plug is
required, be sure the service technician has used a
replacement plug specified by the manufacturer that has the
same overload protection as the original plug.
11.Cleaning - The appliance should be cleaned only as
recommended by the manufacturer.
12.Power Lines - An outdoor antenna should be located away
from power lines.
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
PORTABLE CART
Figure 2

1.SafetyPrecautions
3
13.Outdoor Antenna Grounding - If an outside antenna is
connected to the receiver be sure the antenna system is
grounded so as to provide some protection against voltage
surges and built-up static charges. Article 810 of the National
Electrical Code, ANSI/NFPA 70, provides information with
regard to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna-dis
charge unit, size of grounding conductors,location of antenna-
discharge unit, connection to grounding electrodes and
requirements for the grounding electrode. See Figure 1.
14.Non-use Periods - The power cord of the appliance should be
unplugged from the outlet when left unused for a long period
of time.
15.Object and Liquid Entry - Care should be taken so that objects
do not fall and liquids are not spilled into the enclosure through
openings.
16.Damage Requiring Service - The appliance should be
serviced by qualified service personnel when:
a) The power-supply cord or the plug has been damaged; or
b) Objects have fallen, or liquid has been spilled into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate normally or
exhibits a marked change in performance; or
e) The appliance has been dropped, or the enclosure
damaged.
17.Servicing - The user should not attempt to service the
appliance beyond that described in the operating instructions.
All other servicing should be referred to qualified service
personnel.
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
ANTENNA LEAD
IN WIRE
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250 PART H)
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
EXAMPLE OF ANTENNA
GROUNDING
NEC - NATIONAL ELECTRICAL CODE

2.Adjustments
4
1. TAPE SECTION
Test Tape be used
HEAD ADJUSTMENT (AZIMUTH)
1. 10KHz test tape(example: MTT-114N) must be used for this adjustment.
2. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal.
3. Press the play button.
4. Adjust the azimuth by using a screw driver to maintain the max. L&R output voltage.
5. Adjust tape A(1), tape B(2) respectively, Please secure the azimuth position by using locking paint.
RECORDING BIAS OSCILLATOR FREQUENCY ADJUSTMENT
1. Connect the frequency counter to TP603, GND.
2. Press the REC button.
3. Adjust L603 to obtain 80 KHz
± 500Hz
Tape Contents Use
MTT-111N 3 KHz Tape Speed Adjustment
MTT-114N 10 KHz Head Azimuth Adjustment
MTT-5511 Blank Record Frequency Property
VTVM
Scope
R-CH
L-CH
47 kohm
47 kohm
Input Level
Measurement
Point
Input Point
Output Level
Measurement
Point
TAPE ALIGNMENT CHART
Step Item Reference Value Test Tape Adjust Point Test Point Note FIG.
1Tape Speed
Adjustment
Normal
3,015~3,025Hz MTT-111N RV601 Line Out L/R
Channel
Line Out L/R
Channel
Confirm Wow & Flut-
ter is within 0.35% FIG.1
3,000~3,010Hz MTT-111N RV601 Line Out L/R
Channel
Confirm Tape Speed
of end position after
adjustment at tape
start position
FIG.1
High 5,820~6,180Hz MTT-111N - - - - - -
Confirm High speed
after normal speed
adjustment FIG.1
2Azimuth Adjustment Maximum Level
Phase:Within90∞MTT-114N Head Screw Line Out L/R
Channel FIG.2,3,4
3
Recording Bias Oscilla-
tor Frequency Adjust-
ment 80 KHz±0.5 MTT-5511 L603 TP603,GND Adjust with frequency
counter connected. FIG.1
FIG. 1 : Tape Speed & Record Bias Oscillator
Frequency Adjust Circuit
Test Tape MTT-111N(3kHz)
MTT-5511(Blank) Frequency Counter
Output Level
Measurement Point
Set
FIG. 2 : Tape Azimuth Adjust Location
(Record/Playback Head)
FIG. 3 : Tape Azimuth Adjust Head Screw & Waveform FIG. 4 : Tape Azimuth Adjust Circuit & Waveform
Forward
Side
Reverse
Side
Adjust with Frequency
Counter Connected
L-CH
Peak
R-CH
Peak
Screw
Angle
Output Level
within
1 dB
within
1 dB
L-CH
Peak
R-CH
Peak Screw Angle
VH
Oscilloscope
L-CH
Output Level
Measurement Point
Set
Test Tape
MTT-114N
(10kHz)
Screen Pattern
In Phase 45 90 135 180
Good Wrong

ExplodedViewandMechanicalPartsList
Model : AMI-329LW/RW, AMI-829LW/RW
5

NO PARTS NAME CODE NO. DESCRIPTIONS Q’TY REMARKS
1 WINDOW DOOR A/B 9CD16166A1
9CD16166B1 ACRYL 1
1
2 DOOR COVER A/B 9CD18115A0
9CD18115B0 MIPS 1
1
3 DOOR FRAME A/B 9CD1809400
9CD1809500 MIPS 1
1
4 SPRING DOOR EJECT L 9CD30080L0 STS 1
5 SPRING DOOR EJECT R 9CD30080R0 STS 1
6 C SHION FOOT 9CD4207700 RETHAN FOAM R BBER 3
7 KNOB VOL ME 9CD1340200 MIPS 1
8 DAMPER ASS’Y 2
9 LOCKER ASS’Y 2
10 KNOB JOG DIAL 9CD1340100 MIPS 1
11 BRKT SIDE 9CD2412900 ABS 2
12 PANEL FRONT 9CD0308000 MIPS 1
13 WINDOW FLT 9CD1616701 ACRYL 1
14 KNOB CONTROL "A" 9CD13399A0 MIPS 1
15 KNOB CONTROL "B" 9CD13399B0 MIPS 1
16 KNOB F NCTION 9CD1340000 ACRYL 1
17 PLATE FILTER 9CD0911200 LEXAN (T=0.125) 1
18 KNOB CONTROL "C" 9CD13399C0 MIPS 1
19 G IDE FLT 9CD2505600 ABS 1
20 RING REFLECTOR 9CD3103700 ACRYL 1
21 BADGE BRAND ABS,STAMPING 1
22 CASS DECK MECHA 9CD6010000
9CD6010100
PIGEON CWL-44FF-32
PIGEON CWL-44FF-33 1A TO STOP A TO REVERSE
23 DOOR CD 9CD1811400 MIPS 1
24 CD DECK MECHA 9CD6009300 DCC-01BC+D73S 1
25 COVER TOP 9CD0409600 MIPS 1 W/O HOLE
26 COVER SIDE "L" 9CD0409900 MIPS 1
27 COVER SIDE "R" 9CD0410000 MIPS 1
28 CHASSIS BOTTOM 9CD0607100
9CD0607500
SECC T1.0
MIPS 1AMI-729LW/829LW AMI-329LW
29-1
29-2
29-3
HEAT SINK 1
HEAT SINK N30
HEAT SINK N50
9CD4404500
9CD4406200
9CD4405900
AL2.0T
AL7.0T
AL0.7T
1
1
1
AMI-329LW
AMI-729LW
AMI-829LW
30 HOLDER AC CORD 9CD2303300 ABS 1 AMI-729LW/829LW
31 COVER BACK 9CD0409813 MIPS 1
32 BRKT HEAT SINK 9CD2414600 SECC 1.0T 2 AMI-729LW/829LW
33 BRKT HEAT SINK 9CD2414400 S ST0.3 1 AMI-729LW/829LW
34 PLATE MICA 9CD0910600 MICA 1 AMI-729LW/829LW
35 DECO MD DOOR 9CD1003100 MIPS 1
36 PLATE FLT 9CD0909800 PVC 0.5T 2
37 BRACKET HEAT TR 9CD2413900 S S 0.5T 1 AMI-329LW
38 COVER ANT 9CD0410400 ABS 1
ExplodedViewandMechanicalPartsList
Model : AMI-329L AMI-829LW/RW
6
NO PARTS NAME CODE NO. DESCRIPTIONS Q’TY REMARKS
S1 SCREW TAPTITE 7173261011 TT2 BIN 2.6X10 MFZN 15
S2 SCREW TAPTITE 7173301011 TT2 BIN 3X10 MFZN 18
S3 SCREW TAPTITE 7173301212 TT2 BIN 3X12 BK 20
S4 SCREW TAPTITE 7173400611 TT2 BIN 4X6 MFZN 4 AMI-829LW ZP
S5 SCREW TAPTITE 7173300611 TT2 BIN 3X6 MFZN 4
S6 WASHER SCREW 9CD3102400 TT2 BIN 3X10+D14 1
S7 WASHER SCREW 9CD3102401 TT2 BIN 3X8+D10 4
P1 PCB FRONT 1
P2 PCB MAIN 1
P3 PCB POWER 1
P4 PCD OPTICAL JACK 1

WiringDiagram
7
Model : AMI-329LW/RW

WiringDiagram
8
Model : AMI-829LW/RW

BlockDiagram
9
Model : AMI-329LW/RW

BlockDiagram
10
Model : AMI-829LW/RW

SchematicDiagram
11
Model : AMI-329LW/RW
Ass’y Name : AMP / POWER

SchematicDiagram
12
Model : AMI-829LW/RW
Ass’y Name : TUNER / TAPE / AMP / POWER
DA CE CK DO XIN NC
PD1 VSS
AM/FM
XOUT
VDD
FMIN
IFIN
FM
AMIN
NCST/MO
IF REQ LW
SD
S-CURVE
AM/FM
IF
BUFF 304KHz 19K 19K 0
23
14
1612 3 6 14513
811 7124 910 15
VDD1
R/DATA
QUAL
R/CLK
CLOCK
VSS1 ANALOG
V REF
VSS2 VSS3
PLL
1187.5Hz
PLL57KHz
RDS/ARI
anti
aliasimg
8thswitched
capacitor
filter comparator
BIPHASE
DECODER
TEST
Differential
DECODER
ALC
50W(30W) RW MAIN

MAIN GND
3
14
13
1
210
6 5 4 9 8 7 11 12
6
5
3
2
41 7
9
813
11 14
1210
L101
21 20 19
11
15
14
2
12 17
4
5
7
8
6
18
9
16 13
3
10
22
1
VSS VT
N.C
MUTE
AMOSC 1/2
VT-IN FM/AM IF N.C VDD
IFREQ
DO
DI
CL
C B
I/F
AM/FM
PD
FMOSC
ST/MO
X-OUT
X-IN
FM
CE
Vtg(V) 1.81.8
IC201 Pin No. 13 14
Name Pin No.
Vtg(V)
12
2.1 4.8
#1 : SD ON(0V)
OTHERWISE(5V)
#2 : STEREO ON(0V)
OTHERWISE(5V)
15
3
2.1
4
2.1
567
GND
16 17 18 19
#2#1
2.1 2.1 2.1 2.1 #4
#3 : NORMAL(V=< 0.5V )
MUTE(1.4V=<V=<2.2V)
SEEK(V>=3.5V)
8 9 10 11 12
2.9
20 21 22 23 24
#3
4.8 3.5 3.8
2.1 2.1#5 4.8 3.5
#4 : FM(0V), AM(1.5V)
#5 : FM(0.2V), AM(0.9V)
CC104 : 15pF
CC104 : 12pF
KWANGSUNG : KSNT-213M-1
TOKO : RBW07VB-K5024
KWANGSUNG
TOKO
S-CURVE
AM/FM
IF
BUFF 304KHz 19K 19K 0
FTZ
CE X O
CC214
R217
JW
O
FTZ
CE
#5 : FM(0), AM(2.4)
#7 : VT
IC202 Pin No.
Vtg(V)
Pin No.
Name
Vtg(V)
#1 : FM(3.7),AM(0)
#3 : FM(3.7),AM(0)
2.5 N.C
12
0
12
VCC
13
Vtg(V)
Name
E(1)
B(3)
C(2)
FTZ OPTION
#1
18
1
7
VCC
#6#5
00
VCC
17
#4 : FM(0), AM(12)
#2 : ON TUNING OPERATION(VCC)
14
N.C
3
0
456
15 16
Q104
#6 : FM(2.4),AM(0)
12
Q001
0
Q003
12
0
0
00
0
12
111098
19 20 21 22
GND 2.5
#4
1
#2
#7
#3 0
12
IC205
GND
REMARK
BASIC : FM
5
JW
OX OX OO X820pF
560pF
RDS OPTION
X
O
X
OX
O
R218 R219 R220
JW205JW204CC215
JW213
L202L201
O
X
O
X
CC203
R214 R215
X
OO
X
R221 CF002
56K MS3-A
MJ-A56K
SchematicDiagram
Model : AMI-329LW/RW
Ass’y Name : TUNER
13

SchematicDiagram
Model : AMI-329LW/RW
Ass’y Name : TAPE
14

SchematicDiagram
Model : AMI-329LW/RW
Ass’y Name : CD
15

SchematicDiagram
Model : AMI-829LW/RW
Ass’y Name : CD
16

SchematicDiagram
Model : AMI-329LW/RW, AMI-829LW/RW
Ass’y Name : FRONT
17

P.C.BPatternLayout
18
Model : AMI-329LW/RW
Ass’y Name : MAIN PCB

P.C.BPatternLayout
19
Model : AMI-829LW/RW
Ass’y Name : MAIN PCB