Adcom-GTP830-pre-sch维修电路原理图.pdf

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1、SCHEMATIC DIAGRAMSGTP-830 - 38 - 37 - AC3/DTS RadioFans.CN 收音机爱 好者资料库 SCHEMATIC DIAGRAMSGTP-830 - 39 - 40 - TUNER RadioFans.CN 收音机爱 好者资料库 SCHEMATIC DIAGRAMSGTP-830 - 42 - 41 - MULTI-CHANNEL SCHEMATIC DIAGRAMSGTP-830 - 43 - 44 - S-VIDEO - 45 - SCHEMATIC DIAGRAMSGTP-830 AUDIO - 46 - SCHEMATIC DIAGRAMS

2、GTP-830 MAIN - 47 - SCHEMATIC DIAGRAMSGTP-830 KEY - 48 - SCHEMATIC DIAGRAMSGTP-830 PSU 14 7 9 A 2 1 6 5 4 3 15 B 1G 1C0 TG TG TG TG TG TG TG TG TG TG TG TG 1C1 1C2 1Y 2Y 1C3 10 11 12 13 2C0 2C1 2C2 2C3 2G 11GVCC16 2B2G15 31C3A14 41C22C313 51C12C212 61C02C111 71Y2C010 8GND2Y9 - 49 - IC BLOCK DIAGRAMS

3、GTP-830 AC3/DTS BOARD U101: 74HC153 4 1Y 7 2Y 9 3Y 12 4Y 15 1 G 13 4B 10 3B 6 2B 5 2A 3 1B 2 1A 11 3A 14 4A A/B 1A/BV16 21AG15 31B414 41Y413 52A412 62B311 72Y310 8GND39 AC3/DTS BOARD U102: 74HC157 AINL 8 + - + - + - 5 6 7 423 1 AINR AGND S/H Comparator MCLKSCLKLRCK SDATA Comparator Voltage ReferenceSerial Output Interface Digital Decimation Filter Digital Decimation Filter High Pass Filter High Pass Filter S/H VA+ + - LP Filter DAC DAC LP Filter AC3/DTS BOARD U103: CS5331A