Teac-AGD8900-rec-sm维修电路原理图.pdf

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1、A AG G- -D D8 89 90 00 0 SERVICE MANUAL AV Digital Surround Receiver Effective : January, 2002S-0000A CONTENTS SAFETY INSTRUCTIONS 2 SPECIFICATIONS 3 MEASUREMENTS AND ADJUSTMENTS 5 FIP DISPLAY 8 DISPLAY PIN CONNECTION 9 IC BLOCK DIAGRAMS AND PIN FUNCTIONS 10 EXPLODED VIEWS AND PARTS LIST 22 PC BOARD

2、S AND PARTS LIST 24 INCLUDED ACCESSORIES 29 目 次 SAFETY INSTRUCTIONS 2 仕様 4 測定調整 5 FIP 8 接続 9 IC図機能 10 分解図 22 基板図 24 付属品 29 NOTES 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 capa

3、citors, refer to the circuit diagrams contained in this manual. Parts marked with this sign are safety critical 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.

4、J:JAPAN US:U.S.A. C:CANADA 注意 基板図部品面示。 分解図部番部品品番部品供給 。 標準抵抗、省略。 回路図参照。 印安全重要部品。 交換時必指定部品使用。 仕向先 J:JAPAN US:U.S.A. C:CANADA RadioFans.CN 收音机爱 好者资料库 2 SAFETY INSTRUCTIONS PRECAUTIONS DURING SERVICING 1. Parts identifide by the ( )symbol parts are critical for safety. Replace only with parts number spe

5、cified. 2. In addition to safety, other parts and assemblies are specified for conformance with such regulations as those applying to spurious radiation. These must also be replaced only with specifide replacements. Examples :RF converters, tuner units, antenna selectswitches, RF cables, noise block

6、ing capacitors, noise blocking filters, etc. 3.Use specified internal wiring. Note especially : 1) Wires covered with PVC tubing 2) Double insulated wires 3) High voltage leads 4. Use specified insulating materials for hazardous live parts. Note especially: 1) Insulation Tape 2) PVC tubing 3) Spacer

7、s(insulating barriers) 4) Insulation sheets for transistors 5) Plastic screws for fixing micro switches 5. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap ends of wires securely about the terminals before soldering. 6. Make sure that wires

8、 to do not contact heat producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.). 7. Check that replaced wires do not contact sharp edged or pointed parts. 8. Also check areas surrounding repaired locations. 9. Make sure that foreign objects (screws, solder droplets, etc.) d

9、o not remain inside the set. MAKE YOUR CONTRIBUTION TO PROTECT THE ENVIRONMENT Used batteries with the ISO symbol for recycling as well as small accumulators (rechargeable batteries), mini-batteries (cells) and starter batteries should not be thrown into the garbage can. Please leave them at an appr

10、opriate depot. All other house- hold batteries can be thrown out with the household waste. SAFETY CHECK AFTER SERVICING After servicing, make measurements of leakage-current or resistance in order to determine that exposed parts are acceptably insulated from the supply circuit. The leakage-current m

11、easurement should be done between accessible metal parts (such as chassis, ground terminal, microphone jacks, signal input/output connectors, etc.) and the earth ground through a resister of 1500 ohms paralleled with a 0.15 capacitor, under the units normal working conditions. The leakage-current sh

12、ould be less than 0.5mA rms AC. The resistance measurement should be done between accessible exposed metal parts and power cord plug prongs with the power switch (if included) ON. The resistance should be more than 2.2M Ohms. PRECAUTIONS IN REPAIRING When repairing or adjusting the unit, please note

13、 the following points. 1. Do not put excessive pressure on the mechanical part (operation part), including the pick-up block, as extremely high mechanical precision is required in these parts. 2. When the base is removed for repair adjustment, make sure that there are no metal obiects in the narrow

14、gap between the P. C. board or the mecha parts and the base 3. The Micro-Computer and the CD signal processing ICs can be damaged by static electricity or leakage from a soldering iron during repairing. While soldering, please take the precautions against leakage as in the illustration. 4. Do not lo

15、osen any screws in the pick-up block. When handing the pick-up block, please refer to the points to NOTE when replacing the pick-up block. 5. Keep safety for hazardous invisible Laser Radiation, DO NOT watch the Laser Beam (Objective lens) directly. 6. Models for some countries, laser warning labels

16、 are affixed on the unit and inside of the unit, as shown below. Read it carefully for your safety, when repairing or adjusting the unit. GND RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS Amplifier Section Surround Output Power (0.9 % THD, 1 kHz, 8 ohms): 100 + 100 watts (Front) 100 watts (Center) 100 +

17、100 watts (Rear) Delay Time: DOLBY DIGITAL: REAR 0 15 ms CENTER 0 5 ms DOLBY PRO LOGIC: REAR 15 30 ms Audio Input Sensitivity/Impedance: *LINE: 220 mV/47 k ohms Output Level/Impedance: CD-R/TAPE REC: 200 mV/2.2 k ohms Frequency Response: *LINE: 20 Hz 65 kHz, +1/ 3 dB Signal-to-Noise Ratio: *LINE: 95

18、dB (IHF-A) Tone Control: BASS: 10 dB at 100 Hz TREBLE: 10 dB at 10 kHz Digital Audio Section Sampling Frequency:32 kHz, 44.1 kHz, 48 kHz, 96 kHz DIGITAL Input Level/Impedance: DIGITAL 1, 2 (OPTICAL): 15 dBm 21 dBm DIGITAL 3 (COAXIAL): 0.5 Vp-p / 75 ohms FM Tuner Section (Without notes 100.1 MHz, 65

19、dBf) Tuning Range: 87.5 MHz 108.0 MHz (50 kHz steps, us/c:100kHz steps) Usable Sensitivity (IHF): Mono: 11.2 dBf 50 dB Quieting Sensitivity: Mono: 15.3 dBf Stereo: 38.5 dBf Capture Ratio:2.0 dB Image Rejection Ratio: 80 dB ( us/c: 45dB ) AM Suppression Ratio: 55 dB Total Harmonic Distortion (1 kHz):

20、 Mono: 0.4% Stereo: 0.5% Frequency Response:30 Hz 15 kHz, +1/ 1.5 dB Stereo Separation (1 kHz):40 dB Signal-to-Noise Ratio: Mono: 75 dB Stereo: 70 dB AM Tuner Section Tuning Range: 522 kHz 1,620 kHz (10 kHz steps) 539 kHz 1,720 kHz (10 kHz steps: us/c ) Usable Sensitivity:55 dB/m Total Harmonic Dist

21、ortion:0.8% at 85 dB/m Signal-to-Noise Ratio:45 dB at 85 dB/m Video Section Input Sensitivity/Impedance:1.0 Vp-p/75 ohms Output Level/Impedance:1.0 Vp-p/75 ohms General Power Requirements: E/UK : 230V AC, 50Hz US/C : 120V AC, 60Hz J : 100V AC, 50/60Hz Power Consumption: E/UK : 300W US/C : 2.8A J : 1

22、60W AC Outlets: Switched x 2, Total 100 W max. (1 A max.) (U.S.A./Canada model) Dimensions (W x H x D) 435 x 165 x 350 mm (17-1/8 x 6-1/2 x 13-3/4) Weight (net): E/UK : 9.5kg US/C : 9.4kg(20-11/16lb) J : 9.4kg Standard Accessories: AM Loop Antenna x 1 FM T-type Antenna x 1E/uk FM T-type Antenna x 1

23、Remote Control Unit (UR-417) x 1 *LINE means CD, CD-R/TAPE, VCR/VIDEO 1, DBS/VIDEO 2, DVD/VIDEO 3 and AUX/VIDEO 4. Improvements may result in specifications and features changing without notice. Illustrations may differ slightly from production models. 4 部 出力 (0.9% THD, 1kHz, 6) .100W100W .100W .100

24、W100W .：015ms ：05ms .：1530ms 周波数特性.* ：20Hz65kHz, 1/3dB SN比.* ：95dB (IHF-A) 入力感度/ .* ：220mV/47k 出力/. CD-R/TAPE REC：200mV/2.2k . BASS：10dB (100Hz) TREBLE：10dB (10kHz) 部 周波数 . 32kHz, 44.1kHz, 48kHz, 96kHz 入力/ DIGITAL1, 2 (光). 15dBm21dBm DIGITAL 3 (同軸). 0.5Vp-p/75 FM部 受信周波数 . 76.0MHz90.0MHz (100kHz) 感度

25、(IHF) . ：11.2dBf 50dB感度 .15.3dBf . 38.5dBf . 2.0dB 妨害比 . 45dB AM抑圧比. 55dB 高調波歪率 (1kHz) . 0.4% . 0.5% 周波数特性 . 30Hz15kHz, 1/1.5dB (1kHz) . 40dB S/N比 (1kHz) . 75dB . 70dB AM部 受信周波数. 522kHz1,620kHz (9kHz) 感度 . 55dB/m 高調波歪率 . 0.8% (85dB/m) S/N比 . 45dB (85dB/m) 部 入力感度/ .1.0Vp-p/75 出力/ .1.0Vp-p/75 共通 消費電力

26、.160W 外形寸法 (mm). 435 (W) x 165 (H) x 350 (D) 質量. 9.4kg 付属品 (UR-417) 用乾電池 (単4) x 2本 AM FM室内 取扱説明書 保証書 * ：CD, CD-R/TAPE, VCR/VIDEO1, DBS/VIDEO2, DVD/VIDEO3, AUX/VIDEO4 仕様外観改善予告変更。 実施権基製造 。、DOLBY、AC-3、及 D記号商標。未公開著作物。 著作権1992-1997年。不許複製。 DTS米国Digital Theater Systems,Inc.商標。 仕様 ALIGNMENT INSTRUCTIONS EQU

27、IPMENT NEEDED: AM Signal Generator FM Signal Generator Oscilloscope VTVM(AC, DC) Test loop antenna (AM Adjustment) Dummy antenna (FM Adjustment) Distortion analyser IMPORTANT 1. Check power-source voltage. 2. Set the function switch to band aligned. 3. Keep the signal input as low as possible to adj

28、ust accurately. 4. Modulation and modulation frequency. Item ModulationModulation frequency Band AM30%400Hz FM400Hz ADJUSTMENT POINT MEASUREMENTS AND ADJUSTMENTS 100% (40 kHz Dev.) E/UK 100% (75 kHz Dev.) US/J AM LOOP ANT ANT TERMINAL CT10 PACK1 IC11 J208 VR11VR13 IC12 T102 FM ANT VR12 J207 J205 L10

29、4L105 T101 (FOR ULJ version) L3 L7 L4 L5 L6 L3 L7 T1 L6 L4L5 L3 L6 L4 FM OSC COIL T1FM IFT FM OFFSET ADJ TP CT10 AM ANT TRIMMER (1503kHz/1510kHz) L104 AM ANT COIL L105 AM OSC COIL T101 FM IFT COIL T102 AM IFT COIL (612kHz/610kHz) VR13 FM SD ADJUSTMENT VR12 AM SD ADJUSTMENT VR11 FM SEPARATION ADJ J20

30、8 FM/AM VT J205 J207 FM ANT COIL FM RF COIL (FOR EUR version) L1 L2 L6 L3 L4 L5 L1L2 L5 L7 IFT FM OSC COILL7 FM ANT COIL FM RF COIL 5 1.TUNING FREQUENCY RANGE ADJUSTMENTS (FM) DC VOLTMETER . CONNECT TO TEST POINT J208 and GND NO.BandFrequencyAdjust forAdjustment 1FM87.50MHz1.6VL7 J76.00MHz1.6VL7 2AM

31、530 kHz1VL105 US/C530 kHz1VL105 2.AM TRACKING ADJUSTMENT Signal Generator. Connects to the AM ANT. Coil through the loop antenna. Adjust for the indication of VTVM of the wave form of scope to be maximum. BANDStepFrequencyAdjust forAdjustment 1610 kHzMaximum sensitivityT102, L104 US/C610 kHzMaximum

32、sensitivityT102, L104 21510 kHzMaximum sensitivityCT10 US/C1510 kHzMaximum sensitivityCT10 3Repeat steps 1 and 2 several times. AM J208 3.FM-RF ADJUSTMENT Signal Generator. Connect to FM ANT JACK (FM IN) through the dummy. NO.FrequencyAdjust forAdjustment 190.10MHzMaximum SensitivityL3, L5, L6 J77.0

33、0MHzMaximum SensitivityL3, L5, L6 2Repeat step 1 several times. 6 4.FM MONO DISTORTION ADJUSTMENT DC VOLT METER.Connect to J205 (-), J207 (+) through the chock coil (100uH). Signal Generator.Connect to FM ANT Jack (FM IN) through the dummy. Distortion Meter .Connect to the output. NO.FrequencyAdjust

34、 forAdjustment 1100.10MHz J83.10MHz 2100.10MHz J83.10MHz 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 antenna. J205 J207 DC Voltmeter 0V Minim

35、um T.H.D 7 DC Voltmeter 0VT101 T101 BANDStep Signal Generator Adjust for Adjustment 1 990KHz 82dB Display ON VR12 US/C990KHz 2 990KHz 81dB Display OFFVR12 US/C990KHz 1 100.1MHz 32dBDisplay ON VR13 J(83.10MHz 32dB) 2 100.1MHz 31dB Display OFF VR13 J(83.10MHz 32dB) TUNED TUNED TUNED TUNED AM FM 8 10G9

36、G8G7G6G5G4G3G2G1G P1SOURCEd2d2d2d2d2d2d2d2kHz P2AUXd1d1d1d1d1d1d1d11d P3LDeeeeeeee1e P4DVDrrrrrrrr1c P5VCR 1pppppppp1g P6RECnnnnnnnn1f P7cccccccc1b P8SP.ffffffff1a P9AggggggggM P10Bmmmmmmmm2d P11CHURCHhhhhhhhh2e P12DISCOjjjjjjjj2c P13STADIUMkkkkkkkk2g P14HALLbbbbbbbb2f P15THEATERa2a2a2a2a2a2a2a22b P

37、16PCMa1a1a1a1a1a1a1a12a P17AC-3S1S1S1S1S1S1S1S1DELAY.T P18STEREOS2S2S2S2S2S2S2S2PRESET CH. P193S3S3S3S3S3S3S3S3MEMO P20S4S4S4S4S4S4S4S4TAPE P21DIGITALRDSDpTAMHz P22PRO LOGICDTSTUNEDSTEREOPTYRTTPmS ANODE CONNECTION FIP DISPLAY 9 Pin No.4647 F1F1 Pin No.313233343536373839404142434445 NXNXNXNX1G2G3G4G5

38、G6G7G8G9G10GNP Pin No.161718192021222324252627282930 P14P13P12P11P10P9P8P7P6P5P4P3P2P1NX Pin No.123456789101112131415 F2F2NPNXNXNXNXP22P21P20P19P18P17P16P15Connection Connection Connection Connection PIN CONNECTION 471 PIN No.SYMBOLI/ODESCRIPTION 1,25VDD-Power Supply Port(+5V) 2,3Function SW1,SW2IFu

39、nction Encoder Control Port 4Speaker ON/OFFOFront Speaker Relay Drive Port(“H”) 5NC-Not Use(No connection) 6DSP ResetOReset (Initial Clear) Port for YSS912 7Surr. CLKOSurr. CLK Output Port 8DATA OUTOData Output Port for YSS912 9Surr. DATAOSurr. DATA Output Port 10CSOChip Selector Port for YSS912 11C

40、SOChip Selector Port for AK4112 12CSBNOSub DSP Chip Selector for YSS912 13,14RDS CLK/DATAIRDS IC(SA6579TV1) CLK/DATA Port 15Stereo INIStereo Display Control Port(L) 16Tuned INITuned Display Control Port(L) 17 21KEY MatrixIResistor Divide Key Control Input (17,18 Pin: NOT USE) 22,30Vss-Device GND Por

41、t 23Vass-Device Analog GND Port 24Varef-A/D Converter Reference Voltage 26BACKUPIBack Up Mode Control Input 27TEST-NC(GND) 28,29VOLUME UP/DOWNIMaster Volume Up/Down Control Port 31X INI 8MHz Crystal Connection Port 32X OUTO 33RESET (L)IReset Input 34REMOTE INIRemote Control Sensor Data Input 35BUS IN(NC)ISystem Remote Control Input(No