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ringnalda

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  1. Does anyone have a link for the circuit diagrams for the F900BT or F90BT? I want to get to the pre-amp output stage and check if there are micro-fuses there and/or if the pre-amp chip is bad. Jan
  2. I have an F900BT which is all connected in but one of the pre-amp outs is not working. I have bought an F90BT to replace it (used) Can I simply plug and play? Previous unit was a premier unit too, so I'm sure the 4V pre-amp outputs will help to get the volume improved too! Jan
  3. When I received my (new to me but used) F900BT the USB port was not working, even with the correct cable. After some troubleshooting and dissassembly, I found the plug to the circuit board had been pulled to the extent one of the terminals had become disconnected. Easy fix and a knot in the cable will stop it from being pulled out too far again. Everything worked fine for a while, but now one of the four output channels has gone dead. I have heard of the small fuses, but is there one of these on each channel? Where can I find a wiring diagram? Thanks for any and all help, Jan
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