Hello, I just purchased an 8010 in non working condition. The panel lights work, the tuning meter swings, and the relay clicks. No speaker or headphone sound. I'm a noob, so this is my first unit I've attempted to repair, and all I want right now is to get it working. Recapping and other exotics (for me) will be later. I opened it up, and fuses F01, F02, F04 were blown. F03 is O.K. I replaced the three bad ones, powered it up, and they blew again. SM troubleshooting points to TR 1,2,3,4 on F-1500 power board, or six transistors on F-1499, driver board. Could I unplug and set aside 1499 (one edge connector), replace fuses, and attempt to verify power board is ok by powering it up? I also own another 771 which works. Maybe swap F-1499 from that, if F-1500 comes up alright? From the forum, it looks like common driver board problems could be those six transistors, or 4 diodes? I do want to fix this unit, and have my 771 work also.