Teac-AG790E-rec-sm 维修电路原理图.pdf
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1、NOTESPC 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 supplied pripor to this manual. Parts marked with this sign are safety critical componen
2、ts.They must be replaced with designated components.Destination of product is expressed by mark and ensure exact replacement: EUR: EUROPE, UK: U.K., USA: U.S.A.AM/FM STEREO RECEIVERAG-790ECONTENTSEffective : June 2010G-1008A1. SPECIFICATIONS 22. BRIEF OVERVIEW OF LSI 33. EXPLODED VIEWS AND PARTS LIS
3、TS 64. PC BOARDS AND PARTS LISTS 85. INCLUDED ACCESSORIES14Model name of the AG-790 has been changed to AG-790E from S/N 0AL0001 and higher to cope with Eco Power requirement. Use this service manual according to the S/N of the unit.RadioFans.CN 收音机爱 好者资料库 2 AG-790E1. SPECIFICATIONSAmplifier Section
4、 Output Power 90 + 90 watts RMS (0.9 % THD, 1 kHz, 8 ohms) Total Harmonic Distortion 0.05 % (at 80 watts,1 kHz) Input Sensitivity/Impedance PHONO: 6.5 mV/22 kohms LINE: 230 mV/22 kohms Signal-to-Noise Ratio PHONO: 75 dB (IHF-A) LINE: 90 dB (IHF-A) Tone Control BASS: 10 dB at 100 Hz TREBLE: 10 dB at
5、10 kHz Loudness Control +4 dB at 100 HzFM Tuner Section Tuning Range 87.5 MHz to 108.0 MHz Usable SensitivityMono: 10 dBV/m 50 dB Quieting Sensitivity Mono: 15 dBV/m Stereo: 33 dBV/m Image Rejection Ratio 35 dB AM Suppresion Ratio 50 dB Harmonic Distortion (1 kHz) Mono: 0.5 %, Stereo: 0.5 % Frequenc
6、y Response 20 Hz to 15 kHz, 3 dB Stereo Separation (1 kHz) 35 dB Signal-to-Noise Ratio Mono: 70 dB Stereo: 65 dB (IHF-A)AM Tuner Section Tuning Range 522 kHz to 1,620 kHz, 9 kHz steps EUR, UK 530 kHz to 1,720 kHz, 10 kHz steps USA Usable Sensitivity 55 dB Total Harmonic Distortion 1 % at 100 dBV/m S
7、ignal-to-Noise Ratio 40 dB at 100 dBV/mGeneral Power Requirements 230 V AC, 50 Hz EUR, UK 120 V AC, 60 Hz USA Power Consumption 280 W EUR, UK 2.5A USA 0.6 W (standby) AC Outlet (Total 100 W max)Unswitched x 1 Dimensions (W x H x D) 435 x 144 x 330 mm Weight (net) 7.4 kg (16.31 lb) Operating temperat
8、ure+5 C - +35 C Operating humidity 5% - 85% (no condensation) Storage temperature -20 C - +55 CStandard Accessories AM Loop Antenna x 1 FM Antenna x 1 Remote Control Unit (UR-415B) x 1 Battery (AA, R6, SUM-3) x 2 Owners manual x 1 Warranty card x 1*LINE means CD, TAPE MONITOR , VIDEO/AUX.RadioFans.C
9、N 收音机爱 好者资料库 3 AG-790E2. BRIEF OVERVIEW OF LSIControl pinsPin Configuration (Top View) CMOS 8-Bit MCU with 61440 bytes Flash memory (PQFP64)TOSHIMA T5CB5, FRONT PCBA IC914950515253545556575859606162636432313029282726252423222120191817(INT3/TC2) P15(PD05/PWM5/TC5) P16(PDO6/PWM6/PPG6/TC6) P17(SCL) P50
10、(SDA) P51P52P53P54P30P31P32P33P34P35P36P37 P74 (AIN12)P73 (AIN11)P72 (AIN10)P71 (AIN9)P70 (AIN8)P67 (AIN7/STOP3)P66 (AIN6/STOP2)P65 (AIN5/STOP1)P64 (AIN4/STOP0)P63 (AIN3)P62 (AIN2)P61 (AIN1)P60 (AIN0)AVDDVAREFP07 (INT2)4847464544434241403938373635343312345678910111213141516P14 (TC4/PDO4/PWM4/PPG4)P1
11、3 (TC3/PDO3/PWM3)P12 (PPG)P11 (DVO)P10 (TC1)P17P46 (SCK2)P45 (SO2)P44 (SI2)P43P42 (TxD2)P41 (RxD2)P40P77 (AIN15)P76 (AIN149P75 (AIN13)VSSXINXOUTTESTVDD(XTIN) P21(XTOUT) P22RESET(STOP/INT5) P20(INT0) P00(BOOT/RxD1) P01(TxD1) P02(INT1) P03(SI1) P04(SO1) P05(SCK1) P06 Pin No. Control Pin Input/Output I
12、nput/Output Circuitry RemarksVDDVDDOsc enableResonator connecting pins(High frequency) Rf = 1.2 M (typ.) RO = 0.5 M (typ.)XINXOUTROfcRf2 XIN Input3 XOUT Output 4 AG-790EInput/Output PortsVDDVDDXTENOsc enableResonator connecting pins(Low frequency) Rf = 6 M (typ.) RO = 220 k (typ.)Hysterisis inputPul
13、l-up resistor RIN = 220 k (typ.) R = 100 (typ.)Tri-state I/OHisterisis input R = 100 (typ.)Sink open drain outputHigh current output R = 100 (typ.)Sink open drain outputHisterisis input R = 100 (typ.)Initial “High-Z”Initial “High-Z”Data outputData outputOutput latch inputDisablePin inputPin inputIni
14、tial “High-Z”Data outputOutput latch inputPin inputNote: The TEST pin of the T5CB5 does not have a pull-down resistor. Fix the TEST pin at low-level. R = 100 (typ.)Address-trap-resetWatchdog-timer-resetSystem-clock-resetROfsRfRRIN6 XTIN Input7 XTOUT Output3 TEST Input 11 P1 I/O 13 P3 I/O 12 P2 I/OVD
15、DVDDXTINXTOUTRRRVDDVDDVDDVDD8 RESET Input Pin No. Port I/O Input/Output Circuitry RemarksR 5 AG-790ESink open drain outputHigh current outputHisterisis input R = 100 (typ.)Initial “High-Z”Data outputOutput latch inputOutput latch inputOutput latch inputPin inputKey-on wakeupPin input 15 P5 I/ORSink
16、open drain output orC-MOS outputHisterisis input R = 100 (typ.)Tri-state I/O R = 100 (typ.)Initial “High-Z”Initial “High-Z”Data outputData outputAnalog inputP-ch controlDisableDisablePin input (Control input) 14 P4 I/O 27 P67 I/O 26 P66 I/O 25 P65 I/O 24 P64 I/O 10 P0 I/ORVDDRVDDOutput latch inputPi
17、n inputTri-state I/O R = 100 (typ.)Initial “High-Z”Data outputAnalog inputDisable 23 P63 I/O 22 P62 I/O 21 P61 I/O 26 P60 I/O 17 P7 I/ORVDD3. EXPLODED VIEWS AND PARTS LISTS 6 AG-790EUSAUSAEUR, UKEUR, UKS4S4S5S640 x2x2x6x5S6x227S2S4S7S4S4S8S5S8S9S10S9S9S5S62023233031323329243637433939404142x2S3x13S1x
18、3x3S2x3x4x6x3x3BCCDDDBBx2x2x2x2x2x6x3x2x2x2x2x6x5S6x2S5x5AAS4x4S3S3x2S3x2131211109876542181516193435S4x22527S1321S9S1x222172638S4S3x2x21817S121S944 7 EXPLODED VIEWREF. NO.PARTS NO.DESCRIPTIONREMARKSAG-790E1 CGU1A375Y WINDOW AG-7902 CBN1A122 KNOB, VOLUME3 CMC1A140 RING, SHAFT4 CGX1A369Z SHEET, LED5 C
19、GX1A370Z SHEET, LED6 CGB1A165H8 BADGE, TEAC7 CGW1A405R4WH10 PANEL, FRONT AG-790 EUR, UK CGW1A405R4XH10 PANEL, FRONT AG-790 USA8 CMD2A563 BRACKET9 H/P PCB ASSY United on FRONT PCBA, see page 1110 CMK2A010 BRACKET, PCB11 CBT1A991 KNOB, SPEAKER12 CBC1A152 KNOB, POWER13 CBT1A992 KNOB, TUNING14 CMD1A334
20、BRACKET, POWER15 CBT1A994 KNOB, BASS16 CBT1A993Y KNOB, FUNCTION AG-79017 HFLSVA09MS10 F.I.P, SVA09MS1018 CMD1A374 BRACKET, FIP19 COP12263B FRONT PCB ASSY AG-790MK2 EUR, UK COP12263D FRONT PCB ASSY AG-790MK2 USA20 CMY1A347 HEATSINK21 CMD1A387 BRACKET, PCB22 PCB, FFC SUPPORT United on FRONT PCBA, see
21、page 1123 AMP PCB ASSY, L/R United on MAIN PCBA, see page 824 CLT5U038ZE TRANS, POWER AG-790MK2 EUR, UK CLT5U038ZU TRANS, POWER AG-790MK2 USA25 POWER SECONDARY PCB ASSY United on FRONT PCBA, see page 1126 POWER SW PCB ASSY United on FRONT PCBA, see page 1127 POWER PRIMARY PCB ASSY United on FRONT PC
22、BA, see page 1128 Not in use 29 CHG1A113 RUBBER30 CUA2A168 CHASSIS, BOTTOM31 CKL2A042H11 FOOT, FRONT32 CHG1A360 CUSHION, FOOT33 CKL1A012 FOOT, RUBBER BLACK34 CNVMB114MA18L TUNER MODULE EUR, UK CNVMB014MA0J8LS TUNER MODULE USA35 SHIELD PCB W/BN12 United on MAIN PCBA, see page 836 COP12264B MAIN PCB A
23、SSY AG-790MK2 EUR, UK COP12264D MAIN PCB ASSY AG-790MK2 USA37 CHE1A023 MOUNT, PCB38 CMD1A392 BRACKET, PCB39 CKF8A172Z PANEL, REAR EUR, UK CKF9A172Z PANEL, REAR USA40 KMA2A001 TERMINAL, GROUND41 KHR1A028 BUSHING, AC CORD42 CJA2B043ZA CORD, POWER EUR, UK CJA523FBYA CORD, POWER USA43 CKC1A098B25 CABINE
24、T, TOP AG-79044 SUB TRANS PCB ASSY United on FRONT PCBA, see page 11S1 CTW3+8JR SCREWS2 CHD1A012R SCREW, SPECIALS3 CTB3+10JR SCREWS4 CTB3+6JR SCREWS5 CTB3+8JFZR SCREWS6 CTB3+10JFZR SCREWS7 CTB4+8FR SCREWS8 CTB4+6FFZR SCREWS9 CTW3+8J SCREWS10 CTW3+16G SCREW 8 AG-790E4. PC BOARDS AND PARTS LISTSMAIN P
25、CBCUP12264-1MAIN PCBCUP12264-3AAMP PCB LSHIELD PCBW/BN12CUP12264-3BAMP PCB R 9 MAIN PCB-A ASSYREF. NO.PARTS NO.DESCRIPTIONREMARKSAG-790E COP12264B MAIN PCB ASSY AG-790MK2 EUR, UK COP12264D MAIN PCB ASSY AG-790MK2 USA CUP12264Z PCB, MAIN AG-790MK2 (330 x247 FR1/1) CUP12264-1 MAIN PCBBK41,42 CMD1A387
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