Denon-AVR4802-avr-sm维修电路原理图.pdf
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1、Hi-Fi Component SERVICE MANUAL MODELAVR-4802 MODELAVC-A11SR AV SURROUND RECEIVER / AMPLIFIER ? Some illustrations using in this service manual are slightly different from the actual set. For U.S.A., Canada, Europe, Asia, China, Hong Kong, Korea Edge detection is “Ed”; Detection by both shifting is “
2、E Serial data detection is “S” (Serial data output is also “S”). Res: State at reset. “H”= Outputs High Level at reset “L”= Outputs Low Level at reset “Z”= Becomes High impedance mode at reset Ini: Initial output state. Function: Function and logical level explanation of signals to be interface. 15
3、AVR-4802/AVC-A11SR 3_TMP95FY64F.p6501/08/02, 20:58Page 2-3Adobe PageMaker 6.5J/Win TMP95FY64F (IC802) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? TMP95FY64F Terminal Function Pin. No. NameSymbolI/O Type DetOpResIniFunction 1VREFLVREFLA/D ref. GND 2AVssAVssA/D GND 3AVccAVccAD +5V 4DAOUT0DAOUT0ONo connection 5DAO
4、UT1DAOUT1ONo connection 6_NMI_NMIINot used (fixed to H) 7P53/_BUSRQACKOCZMAIN-SUB com comm. control terminal 8P54/_BUSAKREQILvEuZMAIN-SUB com comm. control terminal 9P55/_WAITPLFL DATAOCZLPLL Edge detection is “Ed”; Detection by both shifting is “E Serial data detection is “S” (Serial data output is
5、 also “S”). Res: State at reset. “H”= Outputs High Level at reset “L”= Outputs Low Level at reset “Z”= Becomes High impedance mode at reset Ini: Initial output state. Function: Function and logical level explanation of signals to be interface. 16 AVR-4802/AVC-A11SR 3_TMP95FY64F.p6501/08/02, 20:58Pag
6、e 4-5Adobe PageMaker 6.5J/Win 17 AVR-4802/AVC-A11SR LC89055W-RA8 (IC111) Pin NameFunction LC89055W-RA8 Terminal Function Pin No. 1DISELIData input terminal (select input pin of DIN0, DIN1) 2DOUTOInput bi-phase data through output terminal 3DIN0IAmp built-in coaxial/optical input correspond data inpu
7、t terminal 4DIN1IAmp built-in coaxial/optical input correspond data input terminal 5DIN2IOptical input correspond data input terminal 6DGNDDigital GND 7DVDDDigital power supply 8RIVCO gain control input terminal 9VINIVCO free-run frequency setting input terminal 10LPFOPLL loop filter setting termina
8、l 11AVDDAnalog power supply 12AGNDAnalog GND 13CKOUTOClock output terminal (256fs, 384fs, 512fs, Xtal osc., VCO free-run osc.) 14BCKO64fs clock output terminal 15LRCKOfs clock output terminal (L: Rch, H: Lch, I2S: Reverse) 16DATAOOData output terminal 17XSTATEOInput data detecting result output term
9、inal 18DGNDDigital GND 19DVDDDigital power supply 20XMCKOXtal osc. clock output terminal (24.576MHz or 12.288MHz) 21XOUTOXtal osc. connection output terminal 22XINIXtal osc. connection output terminal 23EMPHAOEmphasis information output terminal of channel status 24AUDIOOBit1 output terminal of chan
10、nel status 25CSFLAGOTop 40bit revise flag output terminal of channel status 26F0/P0/C0OInput fs cal. sig. out / data type out / input word inf. output terminal 27F1/P1/C1OInput fs cal. sig. out / data type out / input word inf. output terminal 28F2/P2/C2OInput fs cal. sig. out / data type out / inpu
11、t word inf. output terminal 29VF/P3/C3OValidity flag out / data type out / input word inf. output terminal 30DVDDDigital power supply 31DGNDDigital GND 32AUTOONon PCM burst data transfer detect sig. output terminal 33BPSYNCONon PCM burst data preamble Pa, Pb, Pc, Pd sync sig. output terminal 34ERROR
12、OPLL lock error, data error flag output terminal 35DOOCPU I/F read data output terminal 36DIICPU I/F write data input terminal 37CEICPU I/F chip enable input terminal 38CLICPU I/F clock input terminal 39XSELIFrequency select input pin of XIN Xtal osc. (24.576MHz or 12.288MHz) 40MODE0IMode setting in
13、put terminal 41MODE1IMode setting input terminal 42DGNDDigital GND 43DVDDDigital power supply 44DOSEL0IData output format select input terminal 45DOSEL1IData output format select input terminal 46CKSEL0IOutput clock select input terminal 47CKSEL1IOutput clock select input terminal 48XMODEIReset inpu
14、t terminal I/O * For latch-up countermeasure, set digital (DVDD) and analog (AVDD) power on/off in the same timing. 18 AVR-4802/AVC-A11SR 1 2 3 4 5 6 7 8 16 15 14 13 9 1011 12 20 19 18 17 VDD1 VERT* HOR* OSCIN OSCOUT P3 P2 P1 P0 Vss OSC1 OSC2 CS SCK SIN AC VDD2 CVIDEO LECHA CVIN 3 4 5 20 6 11 7 1219
15、18 17 16 8 9 10 12 13 14 15 CS SCK SIN VDD1 AC VSS VDD2 OSCI OSC2VERT* HOR* INPUT CONTROL CIRCUIT DATA CONTROL CIRCUIT ADDRESS CONTROL CIRCUIT INDICATION OSCILLATOR TIMING GENERATOR INDICATION CONTROL REGISTER INDICATION RAM INDICATION CHARACTER ROM BLINKING CIRCUIT SYNC SIGNAL SWITCHING CIRCUIT H C
16、OUNTER INDICATION LOCATION DETECTION CIRCUIT READ OUT ADDRESS CONTROL CIRCUIT INDICATION CONTROL CIRCUIT SHIFT REGISTER SYNC SIGNAL DIS- CRIMINATING CIRCUIT OSC CIRCUIT FOR SYNC SIGNAL GENERATION TIMING GENERATOR NTSC VIDEO OUTPUT CIRCUIT OSCIN OSCOUT CVIDEO LECHA CVIN P0 P1 P2 P3 M35015-210SP (IC41
17、6) M35015-210SP Terminal Function Pin No.SymbolNameI/OFunction 1OSC1Osc. circuit ext.IExternal terminal for indication oscillator circuit. Standard OSC. freq. is approx. 7MHz. 2OSC2terminal.OWith this OSC. freq., decides horizontal indicatin and character width. 3CSChip select inputI Chip select ter
18、minal and turns to “L” when transfer serial data. Hysteresis input. Pull up resistor is built-in. 4SCKSerial clock inputI Takes in serial data of SIN at SCK rise when CS terminal is in “L”. Hysteresis input. Pull up rersist is built-in. 5SINSerial data inputI Serial input of register for indication
19、control and data, and address for indication data memory. Hysteresis input. Pull up rersistor is built-in. 6ACAuto-clear inputI Resets internal circuit of IC at “L” mode. Hysteresi input. Pull up resistor is built-in. 7VDD2Power supplyPower supply terminal of analog system. Connect to +5V. 8CVIDEO C
20、ombined video output O Output terminal of combined video signal. Outputs 2Vp-p combined signal. Character output, etc. Overlap CVIN signal and outputs at superimpose. 9LECHA Character level input I Input terminal deciding character output level in combined video signal. color of character is white.
21、10CVIN Combined video input I Input terminal of external combined video signal. Character output etc. overlap this external combined video signal. 11VssGroundGround terminal. Connect to GND. 12P0Output port p0O General output or character background signal BL NK1* output is switchable. Polarity can
22、be selected at ROM mask. 13P1Output port P1O General output or character background signal CO1* output is switchable. Polarity can be selected at ROM mask. 14P2Output port P2O General output or character background signal BLNK2* output is switchable. Polarity can be selected at ROM mask. 15P3Output
23、port P3O General output or character background signal CO2* output is switchable. Polarity can be selected at ROM mask. 16OSCOUTOTerminal for external use of sync signal OSC. circuit. Use the freq.: 14.32MHz at NTSC 17OSCINIsystem, 17.73MHz at PAL. system, 14.30MHz at MPAL system. 18HOR* Horizontal
24、sync signal I Inputs horizontal sync signal. Hysteresis input. 19VERT* Vertical sync signal IInput vertical sync signal. Hysteresis input. Polarity can be selected at ROM mask. 20VDD1Power supplyPower supply terminal of digital system. Connect to +5V. Ext. terminal for sync sig. OSC. Circuit 19 AVR-
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