Teac-GF-480-Service-Manual电路原理图.pdf
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1、PC boards 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
2、must be replaced with identical components - refer to the appropriate parts list and ensure exact replacement. NOTES Compact Hi-Fi Stereo System For U.S.A and general export version CONTENTS 1 SAFETY INFORMATION 2 SPECIFICATIONS 3 ADJUSTMENT AND CHECKS 3-1 TUNER SECTION 4 EXPLODED VIEWS AND PARTS LI
3、ST 5 PC BOARDS AND PARTS LIST 6 WIRING DIAGRAM 2 3 4 4 3-3 CASSETTE DECK SECTION 6 7 3-2 TURNTABLE SECTION 6 11 15 7 INCLUDED ACCESSORIES 17 GF-480 ! RadioFans.CN 收音机爱 好者资料库 1 SAFETY INFORMATION USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT I
4、N HAZARDOUS RADIATION EXPOSURE. 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 no hazardous inv
5、isible 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 GF-480 2 Optical pickup: Type :SOH-AA-8E15 Manufacturer :SONY CORPORATION Laser outpu
6、t : Less than 0.35mW on the objective lens Wavelength : 79 0 +/-25nm ! CAUTION DO NOT OPEN NE PAS OUVRIR. AVIS RISK OF ELECTRIC SHOCK : RISQUE DE CHOC ELECTRIQUE THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS : (1) THIS DEVICE MAY NOT CAUSE H
7、ARMFUL INTERFERENCE AND (2)THIS DEVICE MUST ACCEPT ANY INTERFER- ENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. THIS CLASS B DIGITAL APPARATUS COMPLIES WITH CANADIAN ICES-003. CET APPAREL NUMERIQUE DE LA CLASSE B EST CONFORME A LA NORME NMB-003 DU CANADA DOUBLE INSULATION-
8、 WHEN SERVICING USE ONLY IDENTIONAL REPLACEMENT PARTS SERIAL N0. MADE IN CHINA VOLTAGE SELECTOR 120V 230V 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 CERT
9、IFICATION 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 1 TEACMODEL No GF-480 Compact Hi-Fi STEREO SYSTEM TEAC CORPORATION 65W TOKYO JAPAN RadioFans.CN 收音机爱 好者资料库 2 SPECI
10、FICATIONS GF-480 3 AMPLIFIER Section TUNER Section SPEAKER SYSTEM Section Impedance:8-ohms Type:1-way CD PLAYER Section Frequency Response: Signal-to-Noise Ratio: Wow and Flutter: Channel Separation: 40 to 16,000 Hz +/-5dB 75dB (IEC-A) Unmeasurable 40dB CASSETTE DECK Section Track System: Tape Speed
11、: Wow and Flutter: Frequency Response: Signal-to-Noise Ratio: 4 track, 2 channel stereo 4.8cm/sec 0.15% (WRMS) 125 to 6,300 Hz +/-2dB 45dB GENERAL Power Requirements: Power Consumption: Dimension (W x H x D ): Weight: Standard Accessories:Owners Manual x 1 Warranty Card x 1 Improvements may result i
12、n specification or feature changes without notice. 120V , 60Hz (U.S.A/Canada) 65W Main Unit:386 x 356 x 815 mm (15-3/16 x 14 x 32-1/12)inches Output Power:10W+10W (U.S.A/Canada) Frequency Response : 60 to 30,000 Hz AM Section Frequency Range:530 to 1710 KHz (U.S.A/Canada) Signal-to-Noise Ratio: 55dB
13、 Sensitivity (S/N 20 dB) : 55 dB uV/m FM Section Sensitivity (S/N 30 dB) : 18 dB uV Frequency Range : 88.0 to 108.00 MHz 120V/230V , 50-60Hz (General Export Version only) 16.5 kg 45rpm Adaptor Rubber pad x 4 4 GF-480 Use a screwdriver with a plastic or ceramic grip for all adjustment. 1. Set the fun
14、ction switch to the FM position. 1. Set the function switch to the AM position. 2. Connect the signal generator output through a 75 ohm dummy 2. Connect the test loop antenna across the output of the signal generator. 3. Connect the oscilloscope to the speaker terminal. 3. Connect the oscilloscope t
15、o the speaker terminal. 4. Set the signal generator as listed in the alignment chart. 4. Set the signal generator as listed in the alignment chart. 3-1 TUNER SECTION 3-1-1 FM adjustment 3-1-2 AM adjustment antenna to ANT on MAIN PCB. 3 ADJUSTMENTS AND CHECKS AM ANT COIL PVC C1FC1 GF-480 MAIN PCB L4
16、C2FC2 L6 L3 L2 L5 GF-480 5 3-1-3 FM/AM alignment chart 3-1-4 TURNTABLE alignment chart ITEMADJUSTMENT POINTADJUSTMENTSG SETTINGTUNER SETTING 1. FM band 2. Tracking 3. Tracking 108MHz 104MHz 104MHz Repeat step 2 90MHz 90MHz 108MHz 87.5MHz 87.5MHz 1kHz, +/-22.5kHz dev. 1kHz, +/-22.5kHz dev. 1kHz, +/-2
17、2.5kHz dev. 1kHz, +/-22.5kHz dev. L3 L2 PVC FC1 PVC FC2 FM Adjust for max.output. Adjust for max. output and best waveform. 1. IF adjustment 2. AM band 455kHz 1710kHz 600kHz 1710kHz Repeat step 3 600kHz 600kHz 1400kHz 1400kHz 530kHz 530kHz 1kHz, 30% mod 1kHz, 30% mod 1kHz, 30% mod 1kHz, 30% mod 1kHz
18、, 30% mod L5 L4 AM ANT PVC C1 PVC C2 L6 AM Adjust for max.output. Adjust for max. output. Adjust for max. output and best waveform. 3-1-4 TURNTABLE alignment chart ITEM ADJUSTMENT ADJUSTMENT WOW & Flutter POINT HP - 4005 Number : SPEED 5200MHz NO.3 NO.4 NO.4 3000Hz 3000Hz VR2 VR3 VR4 0.35%33 45 78 T
19、URNTABLE +/- 30Hz +/- 30Hz +/- 30Hz - - 6 3-3-1 Tape speed adjustment 3-3-2 Azimuth adjustment 1. Place the function switch in the TAPE position. 2. Connect the frequency counter to the speaker terminal. 3. Load tape decks with MTT-111N (use the midpoint of side A). 4. Press the PLAY button on tape
20、and adjust MOTOR VR to obtain 3,000Hz +/- 30Hz. 5. Stop tape . 1. Connect the oscilloscope to the speaker terminal. 2. Load a MTT-114N test tape and press the PLAY button. 3. Adjust the azimuth using a screwdriver to maintain the max. L & R out voltage. 4. Secure the azimuth position using locking p
21、aint. 3-3 CASSETTE DECK SECTION 3-2 TURNTABLE SECTION 1. Set function switch to the PHONO position. 2. Connect the oscilloscope to the speaker terminal. 3. Use a HP-4005 record for all adjustment. GF-480 PHONO SPEED PCB VR2VR3VR4 5353 5656 56 56 58 58 6262 1010 1111 12 12 6060 1313 1515 56 56 5757 1
22、616 3030 2121 1717 1818 1919 2020 5858 5858 5858 5757 2929 5757 3131 2626 5959 2121 2424 2525 5454 27 27 28 28 5757 5858 4040 4141 1717 4242 2121 2323 2222 5858 5656 5757 44 44 4343 4343 4646 4747 4848 52 52 5757 5858 5555 50 50 5050 61 61 61 61 6161 5151 4949 5555 5757 5858 3434 4545 5555 3333 3232
23、 3535 38 38 3737 3939 3636 5656 1414 1 1 9 9 7 7 8 8 6 6 5 5 4 4 5 5 4 4 3 3 2 2 GF- 480 4 EXPLODED VIEWS AND PARTS LIST EXPLODED VIEW - 1 7 REF. NO EXPLODED VIEW-1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17 1-18 1-19 1-20 1-21 1-22 1-23 1-24 1-25 1-26 1-27 1-28 1-29
24、 1-30 1-31 1-32 1-33 1-34 1-35 1-36 1-41 1-37 1-42 1-38 1-43 1-44 1-45 1-39 1-40 1-46 1-47 1-48 1-49 1-50 GF-480 PARTS NO. 015-F3000300 008-0GP18000 011-02001400 004-F3000000 011-02000100 011-GP180300 011-GF600300 031-02000010 004-F3000200 020-02000200 011-02000000 010-02000300 015-F3000200 004-F300
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