I need a Toshiba main board for Toshiba 40BL702B, 17MB65S-3 main board.
The board is marked, 17MB65S-3.....23030449. I understand this number is the firmware version. I can get a board 23030450 - would it work? They seem to use this board in many other brands as well, Tesco Wonder Telly I guess.
Looks like the audio chipped is duff, the four 15nF caps are OK, sound at headphones but not LS, got the headphone switching voltage and the voltages are up on the chip.
If I understand right, I should get 12V between speakers and ground as one video showed, I only get 1.4V.... wonder if the chip overheated and 'kaputted' the output pair, tried pressing the chip in case of bad connections.
Dave
