I'm looking for the schematic of a 26" LCD TVC:
Model: LCD2679V Hisense Technology
100-240VAC 65W
No HV from Inverter board (therefore no backlight). 5VS, 5VM, 12V all present from SMPS (which is by the way on same board with inverter). No 12V on primary of any of the 2 HV transformers. I find this normal since there is no direct contact between any of the pins of these 2 transformers primaries and the Vcc, i.e. the 12VDC. These pins are connected to The MOSFETs via 5 SMD caps in parallel. Is this a typical configuration?? There are 2 secondaries in each tranformer (supposed to deliver 1300V/7mA to CCFLs, as indicated on board i.e.4 lamps). I'd be grateful If someone could show me a similar inverter cicuit for any LCD TV, just to understand how this type of cicuitry works.
Question: Do all inverter cicuit boards necessarily HAVE a fuse somewhere, in which case I have to loooooooooooooooooooook for it, & must find it? In fact I couldn't find any SMD fuse on this board.
ANY HELP!
Model: LCD2679V Hisense Technology
100-240VAC 65W
No HV from Inverter board (therefore no backlight). 5VS, 5VM, 12V all present from SMPS (which is by the way on same board with inverter). No 12V on primary of any of the 2 HV transformers. I find this normal since there is no direct contact between any of the pins of these 2 transformers primaries and the Vcc, i.e. the 12VDC. These pins are connected to The MOSFETs via 5 SMD caps in parallel. Is this a typical configuration?? There are 2 secondaries in each tranformer (supposed to deliver 1300V/7mA to CCFLs, as indicated on board i.e.4 lamps). I'd be grateful If someone could show me a similar inverter cicuit for any LCD TV, just to understand how this type of cicuitry works.
Question: Do all inverter cicuit boards necessarily HAVE a fuse somewhere, in which case I have to loooooooooooooooooooook for it, & must find it? In fact I couldn't find any SMD fuse on this board.
ANY HELP!
