Hi Ed,
Thanks for the assist several months back on the D-500 up in Canada. While we were troubleshooting over the phone, I had the fella check around the relays and he spotted several bad connections at the quick-disconnects on the relays. He cleaned it up and told me it was back to normal operation.
Most recently, I received a few Phase Linear 5100 tuners and one of them is acting goofy. When I power it up on FM, the up scan button doesn't work but when I press the down scan button, it scans down a few a few tenths of a Mhz and stops as if it's trying to lock on a station. Then, if I repeat pressing the down scan button several more times, it will eventually drop down to something like 0.1 Mhz or some other unusual reading. I disconnected the ribbon cable to the front panel tact switches and checked to see if any of them had leakage and that they all had low contact resistance when depressed. They all look good.
I was wondering if you ever came across this issue before, or have any suggestions before I get into troubleshooting this unit.
Thanks,
Joe Cihlar
Thanks for the assist several months back on the D-500 up in Canada. While we were troubleshooting over the phone, I had the fella check around the relays and he spotted several bad connections at the quick-disconnects on the relays. He cleaned it up and told me it was back to normal operation.
Most recently, I received a few Phase Linear 5100 tuners and one of them is acting goofy. When I power it up on FM, the up scan button doesn't work but when I press the down scan button, it scans down a few a few tenths of a Mhz and stops as if it's trying to lock on a station. Then, if I repeat pressing the down scan button several more times, it will eventually drop down to something like 0.1 Mhz or some other unusual reading. I disconnected the ribbon cable to the front panel tact switches and checked to see if any of them had leakage and that they all had low contact resistance when depressed. They all look good.
I was wondering if you ever came across this issue before, or have any suggestions before I get into troubleshooting this unit.
Thanks,
Joe Cihlar