Teac-MC-D90-Service-Manual电路原理图.pdf
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1、CD/TUNER/AMPLIFIER MC-D90 NOTES PC boards shown are viewed from parts side. The parts with no reference number or 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 sigh are crit
2、ical components. They must be replaced with identical components - refer to the appropriate parts list and ensure exact replacement. Parts of mark can be used only with the version designated. J : JAPAN US : U.S.A. C : CANADA E : EUROPE UK : U.K. GE : GENERAL EXPORT 9A08312000 RadioFans.CN 收音机爱 好者资料
3、库 SERVICE MANUAL 2 Specifications AMP Section Output Power: 20 W/ch (0.5%, 6 ohms, 1 kHz) Input Sensitivity: 200 mV Frequency Response: 20 Hz to 40,000 Hz General Power Consumption: 60 W Power Requirements: 120 V, 60 Hz US 230 V, 50 Hz EUR Dimensions (W x H x D): 175 x 140 x 360 mm Weight (net): 4.0
4、 kg Standard Accessories Remote Control Unit Operators Manual AM Loop Antenna FM Lead-type Antenna Design and specifications are subject to change without notice. The illustrations may differ slightly from production models. FM Section Frequency Response: 87.50 MHz to 108.00 MHz (100 kHz steps) US (
5、50 kHz steps) EUR Signal-to-Noise Ratio: Mono: 65 dB (Mono) Stereo: 56 dB (Stereo) AM Section Frequency Response: 530 kHz to 1720 kHz US (10 kHz steps) : 522 kHz to 1620 kHz EUR (9 kHz steps) Signal-to-Noise Ratio: 35 dB CD PLAYER Section Signal-to-Noise Ratio: 80 dB ( with IHF “A” Filter) T.H.D : 0
6、.05% (1 kHz, 20 kHz LPF) Channel Seperation : 55 dB (1 kHz) Channel Balance: 1 dB Frequency Response: 17 Hz - 20 kHz (1.5 dB) Wow Flutter: Bellow Measurable CONTENTS SPECIFICATIONS.2 IC PIN FUNCTION.3 MEASUREMENTS AND ADJUSTMENTS.7 WIRING DIAGRAM.17 BLOCK DIAGRAM .19 SCHEMATIC DIAGRAM.20 PRINTED CIR
7、CUIT BOARDS .27 MECHANISM ASSY .31 EXPLODED VIEW.35 ELECTRICAL PARTS LIST .38 RadioFans.CN 收音机爱 好者资料库 SERVICE MANUAL 3 PIN No.NAMEI/ODESCRIPTION VDD HREQ SLQCLK SLQIN SLQOUT DATA CLOCK STEREO IN TUNED HPIN PROTECTOR KEY MATRIX VSS VAREF BACK UP X-TAL X IN X OUT RESET REMOTE IN BUS IN BUS OUT SPEAKER
8、 CE DATA OUT CLOCK DATA IN CLOCK DATA POWER MUTE VFL GRID SEGMENT CD POWER ON/STBY LED TAPE H MD H JOG CONTROL IC36 PIN FUNCTION (IC : BVITMP87PM78F)(AMP) 1, 25 6 7 8 9 12 13 14 15 16 17 19, 20, 21 22,23,27,30 24 26 28, 29 31 32 33 34 35 36 38 41 42 43 44 45 46 47 48 50 52 60 61 82 83 87 89 90 91 93
9、 96, 97 POWER SUPPLY (+5V) BUS for CD CLOCK BUS for CD CHIP ENABLE RESET for CD MUTE for CD SINGLE EUROPE VERSION RDS DATA CONTROL PORT STEREO IN CONTROL INPUT TUNED CONTROL INPUT PROTECTOR IN PORT KEY MATRIX PORTS GND A/D CONVERTOR REFERENCE VOLTAGE BACK-UP MODE CONTROL INPUT 32.768kHz SUB CLOCK CO
10、NNECTING PORT 8MHz CRYSTAL CONNECTING TERMINAL SYSTEM RESET PULSE INPUT REMOTE CONTROL SIGNAL INPUT REMOTE CONTROL SIGNAL INPUT REMOTE CONTROL SIGNAL INPUT SPEAKER ON/OFF PORT PLL DATA CONTROL PORT TDA7318D DATA CONTROL PORT POWER ON/OFF SIGNAL MUTE (-33V) NEGATIVE POWER SUPPLY FOR FIP BLINKING FIP
11、GRID CONTROL OUTPUTS FIP SEGMENT CONTROL OUTPUTS AREA OPTION CD POWER ON/OFF PORT ON/STANDBY LED CONTROL PORT ON TAPE FUNCTION H OUTPUT PORT ON MD FUNCTION H OUTPUT PORT VOL/BAL/BASS/TRE CONTROL JOG INPUT PORT - I/O I/O I O O O I I I I - - I I I O I I I O O O O O I O O O O O O I O O O O I SERVICE MA
12、NUAL 4 PIN No.NAMEI/ODESCRIPTION VDD BUS 0 BUS 1 BUS 2 BUS 3 BUCK CCE CDRE MUTE SIO CLOCK SIO OUT SIO IN HREQ VSS X IN X OUT RESET A B C D DSP POWER UN CLAMP SW T.U HEIGHT SW HOLDER MODE SW T.U HEIGHT SW HOLDER HEIGHT SW LOAD/CLAMP OPEN SW CLOSE/HP SW DISC ON SW DISC CENTER SW IC 66 PIN FUNCTION (IC
13、 : BVITMP87PM78F)(CD) 1, 25 2 3 4 5 6 7 8 9 10 11 12 13 22,23,27,30 31 32 33 42 43 44 45 46 83 84 85 86 87 88 89 90 91 92 POWER SUPPLY (+5V) BUS for CD DATA BUS for CD DATA BUS for CD DATA BUS for CD DATA BUS for CD CLOCK BUS for CD CHIP ENABLE RESET for CD MUTE for CD SINGLE BUS for CD DATA GND 8MH
14、z CRYSTAL CONNECTING TERMINAL SYSTEM RESET PLL DATA CONTROL PORT CD POWER ON/OFF MECHANISM SW CONDITION - I/O I/O I/O I/O I/O I/O O O I/O I/O I/O I/O - I O I O O O O O I I I I I I I I I I SERVICE MANUAL 5 PIN ASSIGNMENTS (TOP VIEW) PIN BLOCK DIAGRAM SERVICE MANUAL 6 IC11 (TUNER) LA1836M BLOCK DIAGRA
15、M TDA7318DIC23(INPUT) LC4966 SERVICE MANUAL 7 ALIGNMENT INSTRUCTIONS EQUIPMENT NEEDED: AM Signal Generator FM Signal Generator Oscilloscope VTVM(AC, DC) Test loop antenna (AW Adjustment) Dummy antenna (FM Adjustment) Stereo signal modulator Frequency counter Distortion analyser IMPORTANT 1. Check po
16、wer-source voltage. 2. Set the function switch to band aligned. 3. Keep the signal input as low as possible to adjust accurately. 4. Modulation and modulation frequency. Item ModulationModulation frequency Band AM30%400Hz FM100%(75KHz Dev.)400Hz ADJUSTMENT POINT SERVICE MANUAL 8 MEASUREMENTS AND ADJ
17、USTMENTS 1.FM, AM TRACKING VOLTAGE ADJUSTMENTS (FM, AM)DC VOLTMETER. CONNECT TO TEST POINT TP1 and GND NO.BandFrequencyAdjust forAdjustment 1FM87.50MHz1.5VL7 2AM530KHz1VT404 2.AM RF ADJUSTMENT Signal Generator. Connects to the AM ANT. Coil through the loop antenna. Adjust for the indication of VTVM
18、of the wave form of scope to be maximum. BANDStepFrequencyAdjust forAdjustment 1610KHzMaximum sensitivityT104, L105 21510KHzMaximum sensitivityC107 3Repeat steps 1 and 2 several times. AM 3.FM-RF ADJUSTMENT Signal Generator. Connect to FM ANT JACK (FM IN) through the dummy. NO.FrequencyAdjust forAdj
19、ustment 190.10MHzMaximum SensitivityL2, L5, L6 2Repeat step 1 several times. SERVICE MANUAL 9 4.FM MONO DISTORTION ADJUSTMENT DC VOLT METER.Connect to TP1(-), TP2(+) Through the choke coll (100 H) Signal Generator.Connect to FM ANT Jack (FM IN) through the dummy. Distortion Meter.Connect to the outp
20、ut. NO.FrequencyAdjust forAdjustment 1100.10MHzDC Voltmeter 0VT103 2100.10MHzMinimum T.H.DT103 3Repeat steps 1 and 2 Several times. 5.FM/AM AUTO STOP LEVEL ADJUSTMENT FM SIGNAL GENERATOR .Connect to FM ANT Jack (FM IN) through the dummy AM SIGNAL GENERATOR.Connect to AM ANT, Coil through the Loop an
21、tenna BANDSTEPSIGNAL GENERATORAdjust forAdjustment 1100.1MHz 30dBDisplay OFFVR12 2100.1MHz 30dBDisplay ONVR12 11000KHz 80dBDisplay OFFVR11 21000KHz 80dBDisplay ON VR11 AM FM TUNED TUNED TUNED TUNED SERVICE MANUAL 10 PIN No.NAMEDESCRIPTION PW GND OUT (-) 1 PVCC1 OUT (+) 1 VIN1 VRI VCI VIN2 OUT (+) 2
22、PVCC2 OUT (-) 2 PW GND PW GND OUT (-) 3 PVCC3 OUT (+) 3 VIN3 S GND S VCC VIN4 OUT (+) 4 PVCC4 OUT (-) 4 PW GND TA2092N (POWER DRIVER) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Power GND Connected to substrate. pin are connected inside. Inverted output for CH1 Supply terminal of
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