Cliff notes: I started rebuilding the F2624 driver board as this was the obvious root cause of my protection light, many hours/dollars later I never got a working unit (I assume something is wrong with the traces on the board) I sourced another board from a user on AK and plugged it in and the unit worked great for about a year.
So where I am at now, about 2 months ago while listening to the FM tuner I would notice a channel drop out If I switched the unit to dolby FM on the dolby knob it would get back to stereo mode. I lived with this and didn't do much research onto the root cause as I know the Dolby piece on this is notorious for problems, apparently all the audio is routed through the dolby board whether or not its being used.
Tonight I was again listening to FM radio and heard 3 pops, not super loud and the unit went into protection. I powered down the unit gave it a few mins, tried it again to the same result. I can get the unit to turn on and not go into protection, but I notice some oddities. The FM tuner needles will not move the balance one is stuck perfectly in the middle. The output RMS needles will bounce like its trying to power the speakers and the protection is green but there is no power to the speakers.
I will try and set/check the bias and dc offset over the weekend. But other than that I am at a loss. Any help our guidance would be great.
So where I am at now, about 2 months ago while listening to the FM tuner I would notice a channel drop out If I switched the unit to dolby FM on the dolby knob it would get back to stereo mode. I lived with this and didn't do much research onto the root cause as I know the Dolby piece on this is notorious for problems, apparently all the audio is routed through the dolby board whether or not its being used.
Tonight I was again listening to FM radio and heard 3 pops, not super loud and the unit went into protection. I powered down the unit gave it a few mins, tried it again to the same result. I can get the unit to turn on and not go into protection, but I notice some oddities. The FM tuner needles will not move the balance one is stuck perfectly in the middle. The output RMS needles will bounce like its trying to power the speakers and the protection is green but there is no power to the speakers.
I will try and set/check the bias and dc offset over the weekend. But other than that I am at a loss. Any help our guidance would be great.