Teac LT-1 User manual

LT-1/LT-1B
1 SAFETY INFORMATION
PC board shown are viewed from parts side.
The parts with no reference number or no parts number
in the exploded views are not supplied.
As regards the resistors and capacitors, refer to the
circuit diagrams contained in this manual.
Parts marked with this sign are safety critical
components. they must be replaced with identical
ensure exact replacement.
!
components - refer to the appropriate parts list and
2 SPECIFICATIONS
4 EXPLODED VIEW AND PARTS LIST
5 PC BOARDS AND PARTS LISTS
6 WIRING DIAGRAM
7 INCLUDED ACCESSORIES
2
3
7
12
22
24
3 ADJUSTMENT AND CHECKS 4
WITH REMOTE CONTROL
Parts of [ ] mark can be used only with the version designated.
[T/C]: UL/CSA (LT-1) [EX/T]: UNI (LT-1)
CD / RADIO
[EUR]: VDE (LT-1B)

1 SAFETY INFORMATION
2
LT-1/LT-1B
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY
HAZARDOUS RADIATION EXPOSURE.RESULT IN
SAFETY INFORMATION
This product has been designed and manufactured according to FDA regulations " title 21, CFR, chapter 1,subchapter J,based on
The Radiation Control for Health and Safety Act of 1968" and is classified as class 1 laser product. There is not hazardous
invisible laser radiation during operation because invisible laser radiation emitted inside of this product is completely confined
in the protective housings. The label required in this regulation is shown .
1
CAUTION
DO NOT REMOVE THE PROTECTIVE HOUSING USING SCREWDRIVER.
IF THIS PRODUCT DEVELOPS TROUBLE, MAKE A CONTACT WITH OUR SERICEMAN, AND DO NOT USE THE PRODUCT A TROUBLED
1
CERTIFICATION
THIS PRODUCT COMPLIES WITH DHHS
RULES 21 CFR SUBCHAPTER J APPLI-
CABLE AT DATE OF MANUFACTURE.
TEAC CORPORATION
3-7-3, NAKA-CHO, MUSASHINO-SHI, TOKYO, JAPAN
MANUFACTURED : LTC
SERIAL
NO.
FOR U.S.A.
Optical pickup:
Type : KSM-213CDM
Laser output : Less than 0.5 mW on the objective lens
Wavelength : 770 -795 nm
Manufacturer : SONY Corporation
STATE.
CERTIFICATION
THIS PRODUCT COMPLIES WITH DHHS
RULES 21 CFR SUBCHAPTER J APPLI-
CABLE ATDATE OF MANUFACTURE.
TEAC CORPORATION
3-7-3, NAKA-CHO, MUSASHINO-SHI, TOKYO,JAPAN
MANUFACTURED: LTC
THIS CLASS B DIGITALAPPARATUS COMPLIES WITH
CANADIAN ICES-003.
CET APPAREILNUMERIQUE DE LA CLASS B.
EST CONFORM A LA NORME NMB-003 DU CANADA.
THIS DEVICE COMPLIES WITH PART 15OF THE
FCC RULES.OPERATION IS SUBJECT TO THE
FOLLOWING TWO CONDITIONS:(1)THIS DEVICE
MAYNOT CAUSE HARMFUL INTERFERENCE,AND
(2) THIS DEVICE MUSTACCEPT ANY INTERFER-
ENCE RECEIVED, INCLUDING INTERFERENCE
THATMAY CAUSE UNDESIRED OPERATION.
SERIAL NO. LABEL
MODEL NO . LT-1
CD RADIO WITH REMOTE CONTROL
TEAC CORPORATION
40W120V 60Hz
MADEIN CHINA
!
CAUTION
DONOT OPEN
NEPAS OUVRIR.
AVIS
RISKOF ELECTRIC SHOCK
: RISQUEDE CHOC ELECTRIQUE
FM ANT

2 SPECIFICATIONS
LT-1/LT-1B
TUNER Section
Frequency Range (FM): 87.5MHz to 108.00 MHz (100kHz step) - U.S.A
3
Power Requirements: 120V AC,60Hz (U.S.A/Canada Model)
CD PLAYER Section
Frequency Response: 20 Hz to 20 kHz (+/- 1dB)
Wow and Flutter: Unmeasurable
SPEAKER SYSTEM Section
Type: 1-way
Impedance: 8 ohms (L & R)
GENERAL
120/230V AC,50-60Hz (General Export Model)
8 ohms (subwoofer)
Design and specifications are subject to change without notice.
Illustrations may differ slightly from production models.
Dimension (W x H x D ):
Weight:
Standard Accessories:
Warranty Card x 1
357 x 205 x 247.5 mm
5.8 kg (12-13/16 lb)
Power Consumption: 40 W
Owner s Manual x 1
,
(14-1/18 x 8-1/16 x 9-3/4) inches
Remote Control (RC-910) x 1
Total Output Power : 15 W
Frequency Range (AM): 520kHz to 1710 kHz (10kHz step) - U.S.A
522kHz to 1620 kHz (9kHz step) - EUR
87.5MHz to 108.00 MHz (50kHz step) - EUR
230V AC,50Hz (EUR)

4
LT-1/LT-1B
3 ADJUSTMENTS AND CHECKS
Use a screwdriver with a plastic or ceramic grip for all adjustment.
3-1 TUNER SECTION
L3 AM ANT COIL
L4
TC1
LT-1 TUNER PCB
L5
1. Set the function switch to the TUNER position.
3. Connect the signal generator output through a 75 ohm dummy
3. Connect the oscilloscope to the PHONE JACK terminal.
4. Set the signal generator as listed in the alignment chart.
3-1-2 FM adjustment
antenna to "ANT" on TUNER PCB.CN8.
2. Set the BAND switch to the FM position.
CN8 TUNER
1. Set the function switch to the TUNER position.
2. Connect the test loop antenna across the output of the signal generator.
3. Connect the oscilloscope to the PHONE JACK terminal.
4. Set the signal generator as listed in the alignment chart.
3-1-1 AM adjustment
2. Set the BAND switch to the AM position.
3-2 Adjustment and Test Points
Fig. 3-2-1

3-2-2 AM Tuner
LT-1/LT-1B
5
60 cm
AM Loop
AM Signal Generator
Antenna
PHONES
LT-1
Fig. 3-2-3
1 k ohm
1 k ohm
AC Voltmeter
AM
ITEM ADJUSTMENT POINT ADJUSTMENT
SG SETTING TUNER SETTING
AM
2. IFT 450kHz 600kHz (USA)
1kHz, 30% mod
L5
Adjust for max.output.
3. ANT COIL
Repeat step 3
600kHz
1400kHz
1kHz, 30% mod
1kHz, 30% mod
L3
TC1
Adjust for max. output.
Adjust for max. output
and best waveform.
AM ant coil
600kHz (USA)
603kHz (EUR)
1400kHz (USA)
1404kHz (EUR)
603kHz (EUR)
1. VOLTAGE
adjustment
1710kHz (USA)
1620kHz (EUR) L4
Check
VT
8.0V
VT
1.5V
522kHz (EUR)
520kHz (USA)
adjustment
4. TC1
adjustment
adjustment
repeat srep 3
and 4

3-2-4 FM Tuner
6
LT-1/LT-1B
75 ohm
FM LT-1
PHONES
Fig. 3-2-5
1 k ohm
1 k ohm
AC Voltmeter
FM Signal Generator
adjustment
1. VOLTAGE
90.1MHz
106.1MHz
Check
Check VT
5.5-5.9V
VT
1.2-1.6V
ITEM ADJUSTMENT POINT ADJUSTMENT
SG SETTING TUNER SETTING
FM

LT-1/LT-1B
4 EXPLODED VIEWS AND PARTS LIST
EXPLODED VIEW - 1
1
2
3
4
6
7
7
8
8
9
5
11
11
11
12
12
12
12
13
13
14
15
16
17
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19
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18
21
22
23 23
25
24
26
27
27
29
29
30
28
31
31
31
31
33
32
34
34
10
7

011-0LT10100 HEAT SINK BKT
061-0LT10800 SPEAKER 2 INCHES 8 OHM
099-39SLD901 ABSORB COTTON - A
021-13008032 SCREW 3x8MM PT ZMC
100-LT1B1000 MAIN PCB ASSY [EUR]
ABSORB COTTON-C
099-39SLD902
024-43010033 SCREW 3X10MM PWA BLK
035-SLD90052
1-1
1-2
1-3
1-4
1-5
1-7
1-8
1-9
1-10
1-6
1-12
1-13
1-14
1-15
1-11
1-17
1-18
1-19
1-20
1-16
1-22
1-23
1-24
1-25
1-21
1-27
1-28
1-29
1-30
1-26
1-32
1-33
1-34
1-31
REMARKS
REF. NO
EXPLODED VIEW-1
PARTS NO. DESCRIPTION
035-SLD90022 EVA SHEET (A)
EVA SHEET (D)
TUNER PCB ASSY [EUR]
011-SD900100 CD PCB SHIELD PLATE
010-0LT10200 RIGHT SPEAKER BOX COVER
100-0LT12100 CD PCB ASSY [T/C], [EX/T]
010-0LT10100 LEFT SPEAKER BOX COVER
087-00000007 AC CORD UL [T/C]
087-00000027
001-0LT10100 BOTTOM CABINET [T/C] , [EUR]
035-SLD90032 EVA SHEET (B)
010-SD900600 CORD STOP
021-23014033 SCREW 3X14MM BT BLK
022-23008033 SCREW 3x8MM BM BLK
021-13010032 SCREW 3x10MM PT ZMC
100-0LT02000 MAIN PCB ASSY [T/C], [EX/T]
023-13006032 SCREW 3x6MM PB ZMC
021-44010032 SCREW 4x10MM PWT ZMC
035-00LT1052 WOOFER SPEAKER EVA WASHER
044-SLD90040 SPEAKER PAPER TUBE (BOTTOM)
011-SD900401 TRANSFORMER BKT
TRANSFORMER UL 120V/60HZ [T/C]
084-SD900200
084-SD900100
035-SD900082 R/L SPEAKER EVA WASHER
100-LT1B1010 CD PCB ASSY [EUR]
TUNER PCB ASSY [T/C], [EX/T]
100-0LT12020
100-LT1B1020
035-00LT1042 EVA SHEET (G)
010-0LT10300 WOODEN BOX
TRANSFORMER VDS 230V/50HZ [EUR]
AC CORD UL [EX/T]
011-0LT10200 TUNER PCB SHIELD PLATE
061-0LT10801 SPEAKER 3 INCHES 8 OHM
!
!
SCREW 4x15MM PWT ZMC
021-44015032
SCREW 4x18MM PWT ZMC
021-44185032
8
LT-1/LT-1B
001-0LT10300 BOTTOM CABINET [EX/T]
084-SD900700 TRANSFORMER 120/ 230 [EX/T]
087-00000001 AC CORD UL [EUR]
!
!
!
!
!

LT-1/LT-1B
EXPLODED VIEW - 2
1 2
3
4
6
7
8
9
5
5
11
11
12
12
13
13
14 15
16
17
19
20
18
21
22
23
25
24
26
27
27
29
30
28
31
32
33
34
35
36
37
39
40
38
41
42
43
44
45
45
46
46
47
47
47
47
49
50
48
51
56
52
53
54
54
71
55
59
59
57
60
60
60
60
60
58
61
61
62
63
63 63
64
66
66
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66
65
65
67
67
68
70
68
68
68
68
68
68
68
69
69
10
9
54 54
73
72

031-0LT10010
010-0LT10800
039-SD901210 CD MECHA - SONY
002-0LT10000 CD TRAY
TUNER LENS - R
007-0LT10200
010-SD900500
009-00800000 CD PICK UP COVER
010-SD901200 CD DOOR LOCK
004-0LT10500 BASS VOLUME KNOB
011-0LT10600 BBS KNOB BRACKET
SW COVER - R
011-0LT10300 CD BRACKET
100-0LT12050 SNOOZE PCB ASSY
100-0LT12030 CD SWITCH PCB ASSY
008-0GP18000 GEAR DUMPER ASSY
SW COVER - L
CD CONTROL KEY
004-0LT10100 SELECTOR KEY
007-0LT10000 LCD LENS
009-0LT10200 LCD BACK LIGHT HOLDER
010-SD900700 VOLUME SPRING COVER
2-1
REF. NO
EXPLODED VIEW-2
PARTS NO. DESCRIPTION
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
2-25
2-26
2-27
2-28
2-29
2-30
2-31
2-32
2-33
2-34
2-36
2-37
2-38
2-39
2-40
2-41
2-42
2-43
2-44
2-45
2-46
2-47
2-48
037-0LT10100 CD RUBBER CUSHION - BLACK
037-0LT10200 CD RUBBER CUSHION - PINK
010-0LT10000 FRONT GRILL
051-00LT1000 SPEAKER NET NIMERON
001-0LT10000 FRONT CABINET
007-0LT10300 RC SENSOR COVER
PVC WASHER 12x6.1x0.2MM
012-02120612
VOLUME SPRING
007-0LT10100 VOLUME LENS - L
010-0LT10700
100-0LT12010 CONTROL PCB ASSY
REMARKS
CD DOOR SPRING
WOOFER VR PCB ASSY
2-35
TUNER/VOLUME SWITCH LEVER
009-28000000
004-0LT10400 SNOOZE KNOB
100-0LT12040 HEAD PHONE JACK PCB ASSY
004-0LT10300
100-0LT12090
031-28000010
010-SD900800 TUNER SPRING COVER
011-0LT10400 SIDE PANEL BRACKET - A
016-0LT10100 SIDE BOARD - L [T/C] ,[EX/T]
SIDE PANEL BRACKET - B
016-LT1B0100 SIDE BOARD - L
011-0LT10500
[EUR]
035-00LT1032 SIDE PANEL CUSHION - B
035-00LT1022 SIDE PANEL CUSHION - A
011-0LT10000 CABINET BKT
010-0LT10500 LCD LENS RING
080-00LT1021 LCD DISPLAY
006-0LT10000 CD DOOR
052-SLD90000 CD MIGNET
051-SLD90000 CD CLAMPER HIMERON (A)
CD CLAMPER
010-0LT10400 CD DOOR CATCH
010-0LT10900 CD DOOR COVER
LT-1/LT-1B
10
039-LT980130 CD MECHA - SAMSUNG