Hi
I have a Jamo DMR 60 Dolby Surround DVD/receiver and the remote control is not working properly. I have opened it up, cleaned it, cleaned the sensors and contact pads with alcohol and reassembled. I have viewed the remote's transmitter via my phone camera which confirms that it is transmitting signals. I can see the light flashing for all the controls and clearly the batteries are fine. I have also used my phone in conjunction with the "Quick Remote" Android app to 'learn' and transmit what I assume are the same codes (although if those codes have been corrupted somehow then I guess it will have learned codes that are nonsense) . Once the receiver has been powered up manually, none of the the remote buttons work. However, if I power it off, the remote's power button will often work and so wakes up the receiver - either from the original remote or the Quick Remote App but it does not recognise the button when I try to use it to power down.
Is it likely that the infrared sensor/receiver is faulty and needs replacing? Or does the fact that the remote power button works occasionally eliminate this possibility?
Also, if I were to replace the sensor within the receiver (which I can access after removing about 20 screws) are there compatibility issues I need to consider or are these sensors pretty standard for household audio/video devices? I have attached a photo of the sensor which has the numbers 6104 on the top (I think) in tiny print.
I am no electronics wizard but am game to take on certain jobs and can handle simple soldering tasks.
Thanks in advance.