Teac-GF-600-Service-Manual电路原理图.pdf
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1、 SERVICE MANUAL GF-600 Compact Hi-Fi Stereo System 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 view
2、s are not supplied. 3-1 AMPLIFIER SECTION.4 3-2 TUNER SECTION.5 As regards the resistors and capacitors, refer to the circuit diagrams contained in this manual. 3-3 CD PLAYER SECTION.7 Parts marked with this sign are safety critical 3-4 CASSETTE DECK SECTION.8 components. They must be replaced with
3、identical 3-5 TURNTABLE SECTION.10 components refer to the appropriate parts list and 4 EXPLODED VIEWS AND PARTS LIST11 ensure exact replacement. 5 PC BOARDS AND PARTS LIST21 Parts of mark can be used only with the version designated. 6 WIRING DIAGRAM.28 US:U.S.A.C:CANADASA:SOUTH AMERICA RadioFans.C
4、N 收音机爱 好者资料库 GF-600 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 h
5、azardous 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
6、THOSE SPECIFIED HERE IN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. Optical pickup: Type : SLD104u 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 GF-600 2 SPECIFICATIONS AMPLIFIER Section SPEAKER SYSTEM Section Out
7、put Power.15W+15W Type.2-way bass reflex Input Sensitivity.220mV Impedance.6 ohms Frequency Response.50 to 20,000 Hz GENERAL Power Requirements.120V, 60Hz (U.S.A./Canada model) TUNER Section (FM) 120V/230V AC, 50-60Hz (General export model) Frequency Range.87.50 to 108.00 MHz Power Consumption.50W S
8、ensitivity (S/N30dB).20dBV Dimension ( W x H x D ) Main Unit.395 x 379 x 277 mm (15-9/16” x 14-15/16” x 14-13/16”) TUNER Section (AM) Speaker.20 x 172 x 377 mm (7-7/8” x 6-3/4 x 14-13/16”) Frequency Range.530 to 1710 kHz Weight Sensitivity (S/N20dB).60dBV/m Main Unit.11.6 kg (25-1/2 lb) Speaker.2.8
9、kg (6-3/16 lb ) x 2 CD PLAYER Section Frequency Response.20 to 20,000Hz (1dB) Standard Accessories Signal-to-Noise Ratio. 55dB Remote Control Unit (RC-905) x 1 Wow and Flutter.Unmeasurable 45 RPM adaptor x 1 Owners Manual x 1 Warranty Card x 1 CASSETTE DECK Section Track System.4 track, 2 channel St
10、ereo Tape Speed.4.8cm/sec Design and specifications are subject to change without notice. Wow and Flutter.0.35% (WRMS) Illustrations may differ slightly from production models Frequency Response.100 to 8,000 Hz Signal-to-Noise Ratio.35dB RECORD PLAYER Section Motor.DC servo motor Drive System.Belt D
11、rive Speed.33-1/3 rpm, 45 rpm, 78 rpm Wow and Flutter.less than 2.5% (WRMS) S/N ratio.More than 50dB Cartridge type.Ceramic Stereo Cartridge 3 GF-600 3 ADJUSTMENT AND CHECKS 0 dB is referenced to 1.0V. Load impedance: SPEAKERS: 6 ohm (40W or more) PHONES: 1k ohm (1/4W) Specified input level: -3dB (A
12、UX) VOLUME position: VOL 20 Unless specified otherwise,measurements are made in PHONES jack 3.1 3.1 AMPLIFIER SECTION AMPLIFIER SECTION ITEM INPUT SIGNAL (AUX IN) SPECIFICATIONS REMARKS 1.AUX input sensitivity 1KHz /-3dB -4 +/-3dB Reference output level 2.Harmonic distortion 1KHz /-3dB 1.0% or less
13、3.Frequency response 40Hz,100Hz,20kHz 40Hz: 9 +/-3dB 100Hz: 7 +/-3dB 20kHz: 3 +/-3dB Reference level:1kHz 4.S/N ratio No signal 50dB or better Ratio of reference output level to noise 5.Maximum output power 1KHz THD:10% or less VOLUME: MAX 4 Oscillator AUX IN L R GF-600GF-600 PHONES SPEAKERS 6 ohm 1
14、k ohm 1k ohm S1 Distorion Analyzer AC voltmeter Oscilloscope Fig.3-1 Basic test setup 6 ohm GF-600 3-2 TUNER SECTION 3-2-1 AM TUNER SIGNAL GENERATOR SETTING ITEM Audio Modulation Frequency Output GF-600ADJUSTMENTS MEASURING POINTS,RESULT 1710kHzL5 VT 8.0V 1.Voltage adjustment 530kHz Check VT 0.9V 2.
15、IFT adjustment 1kHz 30% 600kHz 76 dBuV600kHz L4 Maximum output level 1kHz 30% 600kHz 76 dBuV600kHz Ant coil Maximum output level 3.Tracking adjustment 1kHz 30% 1400kHz 76 dBuV1400kHz TC2 Repeat step 3 Maximum output level 5 SPEAKER JK2 SW1 AUX INPUT JK1 IC6 IC5 IC IC3 IC2 VR1 IC1 L1 L2 L5 FIG 3-2 Ad
16、justment locations L3 L8 A M A N T IC7 C304 C303 Q31 TC4 TC2 GF-600 MAIN PCBGF-600 MAIN PCB L4 GF-600 3-2-2 FM TUNER SIGNAL GENERATOR SETTING ITEM Audio Modulation Frequency Output GF-600 ADJUSTMENTS MEASURING POINTS,RESULT 108.0MHz L2 VT 8.0V 1.Voltage adjustment 87.5MHz Check VT 2.4V 2.IFT adjustm
17、ent 1kHz 22.5kHz 90.1MHz 22.5 dBuV90.1MHz L1 Maximum output level 1kHz 22.5kHz 90.1MHz 76 dBuV 90.1MHz L3 Maximum output level 3.Tracking adjustment 1kHz 22.5kHz 106.0MHz 76 dBuV 106.0MHz TC4 Repeat step 3 Maximum output level 6 AM signal generator AM GF-600GF-600 PHON 1k ohm 1k ohm S1 Fig.3-3 AM Lo
18、op Antenna 60cm AC voltmeter FM signal generator FM GF-600GF-600 PHONES 1k ohm S1 AC voltmeter 75 ohm Fig.3-4 1k ohm GF-600 3-3 CD PLAYER SECTION 3-3-1 ADJUSTMENT Set all of the adjustment volumes to the center position. Use an oscilloscope that has a bandwidth greater than 40MHz. Use MCD-111 test d
19、isc. A. EF balance adjustment 1. Connect the probe to P1 or J126(TE) and the probe ground to P2 or J154(VC). 2. In the search mode,and adjust VR101 so that the upper and lower. amplitudes of the waveform become equal above and below 0V. B. RF level adjustment 1. Connect the probe to P3 or J143(RF) a
20、nd the probe ground to P2 or J154(VC). 2. In the play mode,and adjust VR102 so that the waveform on the oscilloscope becomes maximum. 7 A B 0V A=B IC105 IC10 IC10 J154 IC10 VR101 P2 P1 J126 IC10 P3 J143 VR102 IC10 Maximum GF-600 3-3-2 Audio performance DISC ITEM TRACK No. FREQUENOY/LEVEL SPECIFICATI
21、ONSREMARKS 1.Output level 2 1KHz/0dB 6 3dB 2.Harmonic distortion 2 1KHz/0dB 0.5% or less 3.Frequency response 4,6 100Hz,20KHz/0dB +1, -3dB Reference level: 1KHz 4.S/N ratio 7 -dB 50dB or better 3-4 CASSETTE DECK SECTION Before performing adjustments and checks clean and demagnetize the entire tape p
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