Forum > LCD TV forum
VESTEL 17MB25 blinking LED, not switching ON
jimca007:
have to agree with Chris with these wee budget 12v dc sets the inverters are a regular fail
gatis:
12V to inverter board coming directly from PSU and is OK. There just two additional one direction signals BACKLIGHT_ON/OFF where is low level all time and DIMMING where happening same as in all system, after switcing ON, three times stay high level (3.3V) and then go to low level. I would like say that I can't see any feedback from invertor board whay all system halt even if it is assumed that the invertor failing.
jimca007:
quite often on these wee inverters if the inv. chip, a mosfet or indeed the coil, some have 1 some have 2, are faulty the error reporting circuit built into the main chip on the inverter relays this info to the processor and the software goes into protection mode and prevents the set from booting up. there are several known faults on these wee inverters so if you let us know which one it is we may be able to point you in the right direction
gatis:
Here are pictures of the invertor.
jimca007:
sorry i dont recognise that one off hand try removing c900 and see if it powers up
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version