Teac SR-L50 User manual

SERVICE MANUAL
SR-L50
CD Receiver
NOTES CONTENTS
●PC boards shown are viewed from parts side. 1 SAFETY INFORAMTION…………………… 2
●Parts marked with * require longer delivery time. 2 SPECIFICATIONS…………………………… 3
3 ADJUSTMENT AND CHECKS………….…. 4●The parts with no reference number or no parts number in the
exploded views are not supplied. 3-1 TUNER SECTION……....………………… 4
3-2 CD SECTION…………………………….… 7●As regards the resistors and capacitors, refer to the circuit
diagrams contained in this manual. 4 EXPLODED VIEWS AND PARTS LIST…… 8
Parts marked with this sign are safety critical 5 PC BOARDS AND PARTS LIST…………… 16
components. They must be replaced with identical 6 WIRING DIAGRAM……………………….…. 26
components – refer to the appropriate parts list and
●
ensure exact replacement.
●Parts of [] mark can be used only with the version designated.
●[T/C]:USA/CANADA,[EUR]:EUROPE,[UK]:UK,
[HKG]:HONG KONG

SR-L50
1 SAFETY INFORMATION
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 1986” and is classified as class 1 laser
product. There is no 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
below.
●CAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HERE IN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
Optical pickup:
Type : SLD104AU
Manufacturer : SONY Corporation
Laser output : Less than 0.5mV on the objective lens
Wavelength 760 – 800 nm
2

SR-L50
2 SPECIFICATIONS
TUNER Section (FM) GENERAL
Frequency Range……………… 87.50 to 108.00 MHz(100kHz step) Total Output Power………………………………………………15W
(U.S.A./Canada Model, General Export Model) Power Requirements……..…120V, 60Hz (U.S.A./Canada model)
Frequency Range……………..… 87.50 to 108.00 MHz(50kHz step) 230V, 50Hz (Europe Model)
(Europe Model) 120V/230V AC, 50-60Hz (General export model)
Power Consumption………...………………..……..……..……40W
TUNER Section (AM) Dimension ( W x H x D ) ……………….…….389 x 213 x 216 mm
Frequency Range……………...………520 to 1710 kHz(10kHz step) (15-7/8”x8-3/8”x8-1/2”)
(U.S.A./Canada Model, General Export Model) Weight..…………………………………………...6.0 kg (13-3/16 lb)
Frequency Range…………….....………522 to 1620 kHz(9kHz step)
(Europe Model) Standard Accessories
Remote Control Unit (RC-917) x 1
CD PLAYER Section FM lead-type antenna
Frequency Response……………………..…...…20 to 20kHz (±1dB) (U.S.A./Canada Model, General Export Model)
Wow and Flutter……………………….………...……...Unmeasurable Remote Control Unit (RC-917) x 1
(Europe Model)
SPEAKER SYSTEM Section
Type.…………………………….………………..……65 mm 1-way x2
80 mm subwoofer x1 ●Design and specifications are subject to change without notice.
Impedance…………….………………………….……..8 ohms (L & R) ●Illustrations may differ slightly from production models
8 ohm (subwoofer)
3

SR-L50
3 ADJUSTMENTS AND CHECKS
3-1 TUNER SECTION
Use a screwdriver with a plastic or ceramic grip for all adjustment.
AM adjustment
1. Set the function switch to the TUNER position.
2. Set the BAND switch to the AM position.
3. Connect the test loop antenna across the output of the signal generator.
4. Connect the oscilloscope to the PHONES JACK terminal.
5. Set the signal generator as listed in the alignment chart.
FM adjustment
1. Set the function switch to the TUNER position.
2. Set the BAND switch to the FM position.
3. Connect the signal generator output through a 75 ohm dummy antenna to "ANT"
on TUNER PCB CN8.
4. Connect the oscilloscope to the PHONES JACK terminal.
5. Set the signal generator as listed in the alignment chart.
3-1-1. RADIO ALIGNMENT
FIG. 1-1 Adjustment locations
4
TUNER PACK
TC1
CW11
CN10
CW8
L5
L4
IC2
L3
IC1 TA2057N
SR-L50 TUNER PCB

SR-L50
3-1-2 AM TUNER
SG SETTING
ITEM Audio Modulation Frequency Output
TUNER
SETTING ADJUSTMENTS
MEASURING
POINTS
RESULT
1710KHz(T/C)
1620KHz(EUR)
L4 VT
8.0V
530KHz(T/C)
1.VOLTAGE
adjustment
531KHz(EUR)
Check VT
1.5V
610KHz(T/C) 610KHz(T/C)
2.IFT
adjustment 1KHz 30%
612KHz(EUR)
76dBuV
612KHz(EUR)
L5 Maximum
output level
610KHz(T/C) 610KHz(T/C)
3.ANT Coil
adjustment 1KHz 30%
612KHz(EUR)
76dBuV
612KHz(EUR)
Am ant coil
L3
Maximum
output level
1410KHz(T/C) 1410KHz(T/C)
4.TC1
adjustment 1KHz 30%
1413KHz(EUR)
76dBuV
1413KHz(EUR)
TC1
Repeat step 3
and 4
Maximum
output level
AM Signal generator AM
AC voltmeter
AM LOOP
Antenna
60CM
FIG. 1-1-1
5
SR-L50
PHONES
1KΩ
1K
Ω

SR-L50
3-1-3 FM TUNER
SG SETTING
ITEM AUDIO Modulation Frequency Output
TUNER
SETTING ADJUSTMENTS
MEASURING
POINTS.
RESULT
106.1MHz Check VT
5.5-5.9V
VOLTAGE
adjustment
90.1MHz Check VT
1.2-1.6V
FM Signal generator FM
75 ohm
AC voltmenter
FIG.1-1-2
6
SR-L50
PHONES
1KΩ
1KΩ

SR-L50
3-2 CD SECTION
Auto alignment.
7

SR-L50
EXPLODED VIEW-1
REF. NO PARTS NO. DESCRIPTION REMARKS
1
–
1 024-43010033 SCREW Ø3x10MM PWA BLACK HD
1 – 2 061-OLT10800 SPEAKER 2” 8 ohm 5~8W
1 – 3 035-SD900082 R/L SPEAKER EVA WASHER
1 – 4 023-23014033 SCREW Ø3x14MM BB BLACK HD
1 – 5 010-SR500200 LEFT SPEAKER BOX COVER
1 – 6 010-SR500300 RIGHT SPEAKER BOX COVER
1 – 7 099-39SRL502 ABSORB COTTON B (SIZE:108x80Xt20MM)
1 – 8 035-SLD90052 EVA SHEET(D):93x5Xt1.0MM
1 – 9 035-SRL50022 EVA SHEET(C):11.8x5xT1.0MM
1 – 10 010-SR500100 WOOFER BOX
1 – 11 011-SD900200 HEAT SINK BKT
1 – 12 023-23008032 SCREW Ø3x8MM BB ZMC HD
1 – 13 023-23012033 SCREW Ø3x12MM BB BLK HD
1 – 14 018-SRL50000 POWER IC HEAT SINK
1 – 15 022-23008033 SCREW Ø3x8MM BM BLK HD
1 – 16 023-13006032 SCREW Ø3x6MM PB ZMC HD
1 – 17 011-SR500500 TUNER PCB SHIELD PLATE
1 – 18 100-SR502060 TUNER PCB ASS’Y ( FOR T/C )
100-SR501180 TUNER PCB ASS’Y ( FOR EUR )
1 – 19 100-SR502010 MAIN PCB ASS’Y ( FOR T/C )
100-SR501160 MAIN PCB ASS’Y ( FOR EUR )
1 – 20 023-23010032 SCREW Ø3x10MM BB ZMC HD
1 – 21 099-39SRL501 ABSORB COTTON A (SIZE:126x126xT20)
1 – 22 035-SRL50002 EVA SHEET(A):183x5xT1.0MM
1 – 23 035-SRL50012 EVA SHEET(A):138x5xT1.0MM
1 – 24 011-SR900401 TRANSFORMER BKT
1 – 25 021-44015032 SCREW Ø4x15MM PWT ZMC HD ( FOR T/C )
021-44020032 SCREW Ø4x20MM PWT ZMC HD ( FOR EUR )
1 – 26 021-44018032 SCREW Ø4x18MM PWT ZMC HD ( FOR T/C )
021-44024032 SCREW Ø4x24MM PWT ZMC HD ( FOR EUR )
1 – 27 084-SD900200 TRANSFORMER UL 120V/60Hz ( FOR T/C )
094-SD900100 TRANSFORMER VDE 230V/50Hz ( FOR EUR )
1 – 28 087-00000007 AC CORD “UL” L=2000MM BLACK ( FOR T/C )
087-00000001 AC CORD “VDE” L=2000MM BLACK ( FOR EUR )
087-00000004 AC CORD “BSI” L=2000MM BLACK ( FOR UK/HKG )
1 – 29 010-SD900600 CORD STOP
1 – 30 044-SLD90040 SPEAKER PAPER TUBE(BOTTOM)
1 – 31 023-44010032 SCREW Ø4x10MM PWB ZMC HD
1 – 32 061-OLT10801 SPEAKER 3” 8 OHM 10~15W
1 – 33 035-OOLT1052 EVA SHEET:Ø83xØ73xT1.5MM
1 – 34 001-SR500100 BOTTOM CABINET ( FOR T/C, EUR )
1 – 35 100-SR502100 AUX PCB ASS’Y ( FOR T/C )
100-SR501190 AUX PCB ASS’Y ( FOR EUR )
1 – 36 037-SR500100 RUBBER FOOT B
1 – 37 037-SD900500 TRANSFORMER RUBBER SHEET (B) ( FOR EUR/HKG )
1 – 38 037-SD900600 TRANSFORMER RUBBER (ROUND) ( FOR EUR/HKG )
1 – 39 015-SR500300 ADIABATIC SHEET <B> ( FOR EUR/HKG )
1 – 40 037-SD900400 TRANSFORMER RUBBER SHEET (A) ( FOR EUR/HKG ) 9

SR-L50
EXPLODED VIEW-2
REF. NO PARTS NO. DESCRIPTION REMARKS
2
–
1 007-SR500300 LCD DISPLAY LENS
2 – 2 007-SR500200 BOTTOM CABINET LENS
2 – 3 001-SR500000 FRONT CABINET
2 – 4 023-23008032 SCREW Ø3x8MM BB ZMC HD
2 – 5 011-SR500800 POLE BKT RIGHT
2 – 6 010-SR501300 CAP SHAFT
2 – 7 010-SR501000 SIDE POLE RIGHT
2 – 8 100-SR502110 BASS PCB ASS’Y
2 – 9 022-23006032 SCREW Ø3x6MM BM ZMC HD
2 – 10 010-SR500900 BBS KNOB LENS RING
2 – 11 004-SR500200 BBS VOLUME KNOB
2 – 12 004-SR500201 MASKING KNOB
2 – 13 004-SR500100 VOLUME KNOB
2 – 14 010-SR500500 VOLUME LENS RING
2 – 15 010-SR500600 VOLUME LENS COVER
2 – 16 011-SR500900 FUNCTION PCB BKT
2 – 17 010-SR501200 PCB HOLDER
2 – 18 100-SR502040 RIGHT FUNCTION PCB ASS’Y
2 – 19 080-SRL50021 LCD DISPLAY: MODEL:TCM-3866
2 – 20 009-SR500000 LCD BACK LIGHT HOLDER
2 – 21 100-SR502050 LCD DISPLAY PCB ASS’Y
2 – 22 023-42610032 SCREW Ø2.6x10MM PWB ZMC HD
2 – 23 004-SR500101 TUNER KNOB
2 – 24 010-SR500700 TUNER LENS RING
2 – 25 010-SR500800 TUNER LENS COVER
2 – 26 004-SR500301 FUNCTION KEY L
2 – 27 100-SR502030 LEFT FUNCTION PCB ASS’Y
2 – 28 100-SR502120 TOP LEFT LED PCB ASS’Y
2 – 29 010-SR501100 SIDE POLE L
2 – 30 010-SR501400 TOP PANEL
2 – 31 004-SR500500 SNOOZE KNOB
2 – 32 051-SRL50001 SPEAKER NET HIMERON
2 – 33 010-SR500400 CLOTH HOLDER
2 – 34 023-23010032 SCREW Ø3x10MM BB ZMC HD
2 – 35 037-SR500000 RUBBER FOOT A
2 – 36 004-SR500401 FUNCTION KEY A
2 – 37 100-SR502140 BOTTOM LIGHT RIGHT PCB ASS’Y
2 – 38 100-SR502130 BOTTOM LIGHT LEFT PCB ASS’Y
11

SR-L50
EXPLODED VIEW-3
REF. NO PARTS NO. DESCRIPTION REMARKS
3
–
1 FRONT CABINET ASS’
Y
3 – 2 WOOFER BOX ASS’Y
3 – 3 100-SR502090 PHONE JACK PCB ASS’Y
3 – 4 022-23006032 SCREW Ø3x6MM BM ZMC HD
3 – 5 011-SR500600 PHONE PCB BKT
3 – 6 007-SR500100 CD DOOR
3 – 7 CD ASS’Y
3 – 8 023-23008032 SCREW Ø3x8MM BB ZMC HD
3 – 9 011-SR500100 CD BKT RIGHT
3 – 10 011-SR500000 CD BKT LEFT
3 – 11 011-SR500200 BRIDGE BKT FRONT
3 – 12 011-SR500300 BRIDGE BKT REAR
3 – 13 011-SR500400 CD PCB SHIELD PLATE
3 – 14 100-SR502030 CD PCB ASS’Y ( FOR T/C )
100-SR501170 CD PCB ASS’Y ( FOR EUR )
3 – 15 001-SR500200 REAR CABINET ( FOR T/C )
001-SR500500 REAR CABINET ( FOR EUR )
3 – 16 022-23014033 SCREW Ø3x14MM BB ZMC HD
3 – 17 022-23008033 SCREW Ø3x8MM BM ZMC HD
3 – 18 015-SR500100 REAR CABINET PVC SHEET
3 – 19 100-SR502080 SNOOZE SW PCB ASS’Y
3 – 20 004-SR500600 DIMMER KNOB
13

SR-L50
EXPLODED VIEW-4
REF. NO PARTS NO. DESCRIPTION REMARKS
4
–
1 008-OLT98003 CD BELT GEAR (D)
4 – 2 085-OLT98050 MOTOR RF-500TB-12560
4 – 3 100-SR502150 CD MOTOR PCB ASS’Y
4 – 4 063-OLT98400 LEAF SWITCH
4 – 5 010-LT980100 CD DISC HOLDER
4 – 6 051-SRL50002 CD CLAMPER HIMERON
4 – 7 025-OLT98002 SPECIAL SCREW
4 – 8 037-OLT10100 CD RUBBER CUSHION(AC-211A-SIN30° BLACK)
4 – 9 039-LT980130 CD PICK UP (SAMSUNG :CMS-B31VG6)
4 – 10 023-43008032 SCREW Ø3x8MM PBW ZMC HD (Ø=12MM)
4 – 11 037-OLT10200 CD LOADING TABLE
4 – 12 002-LT980100 CD RUBBER CUSHION(AC-211A-SIN40° PINK)
4 – 13 002-LT980000 CD BASE
4 – 14 008-OLT98001 CD SMALL GEAR (B)
4 – 15 008-OLT98000 CD BIG GEAR (A)
4 – 16 023-42606032 SCREW Ø2.6x6MM PBW ZMC HD
4 – 17 008-OLT98002 CD FLY GEAR (C)
4 – 18 033-02301015 BELT
4 – 19 011-LT980000 YOKE
4 – 20 052-OLT98000 MAGNET
4 – 21 010-LT980000 CD DECK HOLDER
15

SR-L50
5 PC BOARD AND PARTS LIST
MAIN PCB ASSY MAIN PCB ASSY
REF. NO PARTS NO. DESCRIPTION REF.NO PARTS NO. DESCRIPTION
100-SR502010 MAIN PCB ASS’Y FUSE01,02 090-22520022 FUSE T2AL 250V “UL/CSA/VDE” MARK
062-SRL50000 MAIN PCB 94V-0 REV:00
IC3 075-00405201 IC:TC4052BP
C1,2,3,4,5,6,7,8 070-32200507 CERAMIC CAP 0.022UF 50V Y5U M IC4 075-00926001 IC:TC9260P
C18,84 070-31000506 CERAMIC CAP 0.01UF 50V Z5U M IC5,6 075-01521808 IC:BA15218
C47,48 070-02200502 CERAMIC CAP 22PF 50V NPO J IC7 075-00821841 IC:TA8218AH
C139 070-50100507 CERAMIC CAP 0.1UF 50V Y5U M IC8 075-00780801 IC:AN7808
C22,37,39 071-50121001 MYLAR CAP 0.12UF 100V J (H<12MM) IC12 075-00780501 IC:KIA7805PI
C24 071-38201001 MYLAR CAP 0.082UF 100V J IC13 075-00401301 IC:TC4013BP
C27 071-50271001 MYLAR CAP 0.27UF 100V J (H<16MM)
C38,40 071-30331001 MYLAR CAP 0.0033UF 100V J L1 078-06301952 FILTER COIL Ø3.0MMx19.5TxØ0.5MM
C41,42 071-50151001 MYLAR CAP 0.15UF 100V J (H<12MM)
C60,62,63 071-50101001 MYLAR CAP 0.1UF 100V J (H<10MM) Q1,2,4,5,8,12,13 076-00C94500 TRANSISTOR:2SC945
C9 072-30220251 E/C CAP 2200UF/25V M (H<25MM) 14,15,16,17,18,33
C10,14,17,28 072-12200161 E/C CAP 220UF/16V M 34,310
C11,15,35,36,79,140 072-04700161 E/C CAP 47UF/16V M Q6,9 076-00A73300 TRANSISTOR:2SA733
C12 072-30470251 E/C CAP 4700UF/25V M (H<30MM) Q7 076-00B54400 TRANSISTOR:2SB544F
C13,16,19,33,46,49 072-11000161 E/C CAP 100UF/16V M
50,77,78,80 ZD1 077-3011B20H ZENER DIODE 10V 0.5W
C20 072-04700251 E/C CAP 47UF/25V M
C29,30,31,32,87,88 072-A3300501 E/C CAP 3.3UF/50V M
141
C43,44,69,70,71,72 072-01000161 E/C CAP 10UF/16V M
73,74,75,76,81,82
C45,83,146 072-03300161 E/C CAP 33UF/16V M
C51 072-11000251 E/C CAP 100UF/25V M
C52,53,54,58 072-A1000501 E/C CAP 1UF/50V M
C55,56,57 072-04700162 E/C CAP 47UF/16V M
C59,61 072-01000251 E/C CAP 10UF/25V M
C64,67,68 072-30100251 E/C CAP 1000UF/25V M (H<22MM)
C65 072-12200125 E/C CAP 220UF/25V M
CN2 082-10340100 CONNECTOR 3PIN P=2.5MM 180°
CN3,7,9 082-10300100 CONNECTOR 3PIN P=2.0MM 180°
CN4 082-10240100 CONNECTOR 2PIN P=2.5MM 180°
CN6 082-10500100 CONNECTOR 5PIN P=2.0MM 180°
CN11 082-10540100 CONNECTOR 5PIN P=2.5MM 180°
CN19 082-20540100 CONNECTOR 5PIN P=2.5MM 90°
CN15 082-21450100 FPC CONNECTOR 14PIN P=1.25MM 90°
D1,2,3,4 077-10539201 DIODE 1N5392
D5,6,7,8 077-10400201 DIODE 1N4002
D9,10,11,12,13,14,15 077-00414801 DIODE 1N4148
22,23
16

SR-L50
CD PCB ASSY CD PCB ASSY
REF. NO PARTS NO. DESCRIPTION REF.NO PARTS NO. DESCRIPTION
100-SR502020 CD PCB ASS’Y L9,10 095-00100001 INDUCTOR 10UH 0.5W
062-SRL50001 CD PCB 94-HB REV:00 (FOR T/C)
062-SRL50006 CD PCB 94-HB REV:00 (FOR EUR) Q201 076-00B54400 TRANSISTOR:2SB544F
Q202 076-00A73300 TRANSISTOR:2SA733
C203,204 070-30220505 CERAMIC CAP 0.0022UF 50V Y5P M Q203 076-00C94500 TRANSISTOR:2SC945
C205,206 070-03300502 CERAMIC CAP 33PF 50V NPO J
C211,240,241,243 070-50100507 CERAMIC CAP 0.1UF 50V Y5U M XT2 093-A0750002 XTAL 75KHz
245,246,251,252,260 XT3 093-11693440 XTAL 16.9344MHz
262
C212,213 070-01500502 CERAMIC CAP 15PF 50V NPO J
C215,247 070-30470506 CERAMIC CAP 0.0047UF 50V Z5U M
C217,231,239,256 070-31000506 CERAMIC CAP 0.01UF 50V Z5U M
257
C219 070-04700502 CERAMIC CAP 47PF 50V NPO J
C232,233,234,235 070-34700507 CERAMIC CAP 0.047UF 50V Y5U M
242
C236,237 070-14700504 CERAMIC CAP 470PF 50V Y5E K
C253 070-00300502 CERAMIC CAP 3PF 50V NPO C
C254 070-05600502 CERAMIC CAP 56PF 50V NPO J
C218 071-31501001 MYLAR CAP 0.015UF 100V J
C249,250 071-50221001 MYLAR CAP 0.22UF 100V J
C201,202 072-A3300501 E/C CAP 3.3UF 50V M
C207,208 072-02200161 E/C CAP 22UF/16V M
C210,238,248 072-11000161 E/C CAP 100UF/16V M
C220,221,223,224 072-04700161 E/C CAP 47UF/16V M
226,227,228,244,255
258,259
C230 072-30220101 E/C CAP 2200UF/10V M
CN5 082-21450100 FPC CONNECTOR 14PIN P=1.25MM 90°
CN12 082-23050100 FPC CONNECTOR 30PIN P=1.25MM 90°
CN14 082-20300100 CONNECTOR 3PIN P=2.0MM 90°
CN17 082-20600103 CONNECTOR 6PIN P=2.0MM 90°
CN18 082-21600305 FPC CONNECTOR 16PIN P=1.0MM
CN21 082-20500100 CONNECTOR 5PIN P=2.0MM 90°
D201,202,203,204 077-00414801 DIODE 1N4148
205,206
IC9 075-094A0931 IC:TC94A09F-202
IC10 075-00209001 IC:TA2092N
IC11 075-00215301 IC:TA2153FN
IC14 075-00729111 IC:TA7291S
18