Teac-SR-L50-Service-Manual电路原理图.pdf
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1、 SERVICE MANUAL SR-L50 CD Receiver NOTES CONTENTS PC boards shown are viewed from parts side. 1 SAFETY INFORAMTION2 Parts marked with * require longer delivery time. 2 SPECIFICATIONS3 3 ADJUSTMENT AND CHECKS.4 The parts with no reference number or no parts number in the exploded views are not suppli
2、ed. 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 LIST8 Parts marked with this sign are safety critical 5 PC BOARDS AND PARTS LIST16 components. They must be replaced with identical 6 W
3、IRING 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 RadioFans.CN 收音机爱 好者资料库 SR-L50 1 SAFETY INFORMATION SAFETY INFORMATION This product has been design
4、ed 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 em
5、itted 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
6、 : SLD104AU Manufacturer : SONY Corporation Laser output : Less than 0.5mV on the objective lens Wavelength 760 800 nm 2 RadioFans.CN 收音机爱 好者资料库 SR-L50 2 SPECIFICATIONS TUNER Section (FM) GENERAL Frequency Range 87.50 to 108.00 MHz(100kHz step) Total Output Power15W (U.S.A./Canada Model, General Exp
7、ort 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.5
8、20 to 1710 kHz(10kHz step) (15-7/8” x 8-3/8” x 8-1/2”) (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 t
9、o 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
10、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
11、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. Connec
12、t 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 L
13、3 IC1 TA2057N SR-L50 TUNER PCB SR-L50 3-1-2 AM TUNER S G S E T T I N G 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 1KH
14、z 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 o
15、utput level AM Signal generator AM AC voltmeter AM LOOP Antenna 60CM FIG. 1-1-1 5 SR-L50 PHONES 1K 1K SR-L50 3-1-3 FM TUNER S G S E T T I N G ITEM AUDIO Modulation FrequencyOutput TUNER SETTING ADJUSTMENTS MEASURING POINTS. RESULT 106.1MHz Check VT 5.5-5.9V VOLTAGE adjustment 90.1MHz Check VT 1.2-1.
16、6V FM Signal generator FM 75 ohm AC voltmenter FIG.1-1-2 6 SR-L50 PHONES 1K 1K SR-L50 3-2 CD SECTION Auto alignment. 7 SR-L50 EXPLODED VIEW-1 REF. NO PARTS NO. DESCRIPTIONREMARKS 1 1 024-43010033 SCREW 3x10MM PWA BLACK HD 1 2 061-OLT10800 SPEAKER 2” 8 ohm 58W 1 3 035-SD900082 R/L SPEAKER EVA WASHER
17、1 4 023-23014033 SCREW 3x14MM 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-
18、SD900200 HEAT SINK BKT 1 12 023-23008032 SCREW 3x8MM BB ZMC HD 1 13 023-23012033 SCREW 3x12MM BB BLK HD 1 14 018-SRL50000 POWER IC HEAT SINK 1 15 022-23008033 SCREW 3x8MM BM BLK HD 1 16 023-13006032 SCREW 3x6MM PB ZMC HD 1 17 011-SR500500 TUNER PCB SHIELD PLATE 1 18 100-SR502060 TUNER PCB ASSY ( FOR
19、 T/C ) 100-SR501180 TUNER PCB ASSY ( FOR EUR ) 1 19 100-SR502010 MAIN PCB ASSY ( FOR T/C ) 100-SR501160 MAIN PCB ASSY ( FOR EUR ) 1 20 023-23010032 SCREW 3x10MM 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):1
20、38x5xT1.0MM 1 24 011-SR900401 TRANSFORMER BKT 1 25 021-44015032 SCREW 4x15MM PWT ZMC HD ( FOR T/C ) 021-44020032 SCREW 4x20MM PWT ZMC HD ( FOR EUR ) 1 26 021-44018032 SCREW 4x18MM PWT ZMC HD ( FOR T/C ) 021-44024032 SCREW 4x24MM PWT ZMC HD ( FOR EUR ) 1 27 084-SD900200 TRANSFORMER UL 120V/60Hz ( FOR
21、 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)
22、1 31 023-44010032 SCREW 4x10MM PWB ZMC HD 1 32 061-OLT10801 SPEAKER 3” 8 OHM 1015W 1 33 035-OOLT1052 EVA SHEET: 83x 73xT1.5MM 1 34 001-SR500100 BOTTOM CABINET ( FOR T/C, EUR ) 1 35 100-SR502100 AUX PCB ASSY ( FOR T/C ) 100-SR501190 AUX PCB ASSY ( FOR EUR ) 1 36 037-SR500100 RUBBER FOOT B 1 37 037-SD
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