I have two Lasonic TRC-920's with dead tuner boards.
There are no schematic's for this radio. Does anyone have any idea on the best way to trace my way through a PC board or are there common tuner issues to look for.
What I have figured out:
Both tuners are getting power and have grounds. The switches are correctly switching to the "Radio" setting and the amplifier's are live, there is just no signal coming from the tuner board for the amps to amplify.
This seems to be the case on FM/AM and SW1&2
I do have a third TRC-920 that has a working tuner board, but it is a totally different board layout and wiring set up with different main board as well.
Thanks
There are no schematic's for this radio. Does anyone have any idea on the best way to trace my way through a PC board or are there common tuner issues to look for.
What I have figured out:
Both tuners are getting power and have grounds. The switches are correctly switching to the "Radio" setting and the amplifier's are live, there is just no signal coming from the tuner board for the amps to amplify.
This seems to be the case on FM/AM and SW1&2
I do have a third TRC-920 that has a working tuner board, but it is a totally different board layout and wiring set up with different main board as well.
Thanks