Yep, another J-500 hits the bench of D-lab. Reported erratic tuning. However, many more issues are surfacing. This transmitter had work performed on it several years back. The new owner purchased it with hopes of proper operation. Well, were not there yet. Over the years as these radios pass to new owners, maintenance & mods happen. When the radio fails, the poor tech at the other end has to sort out right from wrong. At some shops, if it doesn't agree with the schematic, repair efforts stop. As a remedy, I always try to return the radio to the stock design per the print. Some are to far gone and become hanger queens. So yes, you fall into the rabbit hole, as happened here. Many lost hours, sleep & increasing expense. Proverb. if it ain't broke, don't fix it.
5 янв 2023
