Got another project. Bought this unit (it's a series II) locally for $50 because it won't power on, & I was gonna rob it to fix another series 1 ref-50 that quit on me. Just for bleeps & giggles I decided to try & troubleshoot it. When you push the power button you immediately here a relay click & then nothing happens........no display, no nothing. Seems to go right into protect. But I'm getting power all over the main board at check points. Unplugging boards & ribbon cables yielded no change, & I couldn't see anything that visually looked bad............until........
Now, this is on the back side of the tuner board which is a 3rd party unit........not a B&K product, so it doesn't show up on any of the 20+ pages of schematics other than it's part # on the page for for the tuner section of the main board. I googled the part# of the tuner board & came up with nothing. The component that looks smoked is so small that I had a helluva time trying to get a decent picture of it........literally the size of a pencil tip. I'm not equipped to fix a component that small, but I'm curious.........would anyone think that this would cause the whole unit to go into protect?
Now, this is on the back side of the tuner board which is a 3rd party unit........not a B&K product, so it doesn't show up on any of the 20+ pages of schematics other than it's part # on the page for for the tuner section of the main board. I googled the part# of the tuner board & came up with nothing. The component that looks smoked is so small that I had a helluva time trying to get a decent picture of it........literally the size of a pencil tip. I'm not equipped to fix a component that small, but I'm curious.........would anyone think that this would cause the whole unit to go into protect?
