Hello Friend. First measure the voltage on the tuner pins there must open 33volt. + 5volt, and 4.7 volts in agc. If you have those voltages, try another selector, which is the same as the one with the TV. or disassemble that tuner that has the tv. and solve it inside, be careful not to leave lines attached with tin or you can also try another eprom. new that is the same as the one that has the tv. and recorded with the micro data. regards