tf2906dh总线（Tf2906dh bus）.doc

tf2906dh总线（Tf2906dh bus） 1 methods: 0076 fold into the remote control, there is an empty position in the lower right corner of the printed circuit board, named F1, the lower left corner of the sound pattern for F20092 can also open, remote control, short circuit chip 2 feet and 16 feet, and then quickly press the voice mode button to enter the.2 bus according to F1, according to F2, M1, said the bus has entered the state, according to F2, M2, M1, M2 state can be adjusted according to the channel switching bus, or project, adjust the volume of data, F1 or remote shutdown exit The principle of Hisense TC2902HD machine analysis, the TC2902HD is super single chip TV Hisense electric Limited by Share Ltds new Toshiba Co, using large scale integrated circuit TMPA8829, the chip is a 64 pin dual in-line package, contains a small signal processing and microprocessor circuit, can be regarded as: TMPA8829=CPU (TMP88CS38) +SIGNAL PRO (TB1254H) the chips are mainly composed of intermediate frequency demodulation, video processing, audio demodulation function, the control software developed by Hisense after the model is written as HISEN-8829-1, you cannot directly use the empty TMPA8829 substitution, otherwise there will be dark without grating image. The chip integration greatly improved after the peripheral component is further reduced, greatly simplifies the circuit design, adjustment process is more simple, greatly improve the machine performance, so it is convenient for large-scale production, but also is convenient for maintenance and reliability has been greatly improved. Two, the main components of serial number name type 1 VE1 tube 73SX707Y22-DC01 2 U101 high frequency tuner UV3116VC 3 T501 49LEC-X17 4 T401 switch transformer output transformer BSC29-N2420 5 N201 small signal processing and integrated circuit CPU TMPA8829 6 NV01 AV/TV conversion integrated circuit TC90L01N 7 NA02 audio processing integrated circuit TA1343N 8 VA01 audio power amplifier integrated circuit