My retro-hipster daughter (17, likes manual typewriters, vintage clothing, old volvos) announced awhile back she wanted a "record player". Well, to me, that phrase is an abomination, but I figured I'd find a decent older basic turntable with an OK cartridge, and set her up with one of our older stereos... that way my system is left alone.
so awhile back, I found a rather clean DP-7F for free (owner was purging old stuff he didn't need). awhile later, I finally hooked it up, to discover that it didn't spin (actually, switching on power, and it started to go forward, then spun backwards slowly and weakly) so I put it back on my project shelf for later perusal, where its sat for a year now.
last night, decided to take a closer look. popped open the bottom... ok, this is a quartz direct drive, so no belt, darn. no fried chips or swollen capacitors in evidence, darn. All solder work on the PCBA looks perfect, darn.
This AM, I found this site, and the service manual, wow! hmmm, lets check the power supplies, and voila, the +5V regulator had no output! (-5V was fine). so a quick trip to the local electronics store, come back with a 7805, dig out my weller station and real lead-tin kester 44 fine solder, and put a fresh fine tip in the weller, quick pass with the solder sucker, old regulator comes off (looks fine, no sign of overheating), new regulator goes in, screw down TO220 to heatsink, solder nice and neat, trim leads, and check voltages, hey, +5V, yay.
button the PCBA back down, cover on, flip back right side up, reinstall counterbalance weight and platter, and yeessss! it spins!!! ok, dig out my wife's 1970s vintage Nikko reciever (college stereo...), hook up a spare pair of small bookshelf speakers, dig into my old vinyl stacks and pull out the nice retro "Kinks - State of Confusion", and darn if it doesn't work perfectly, Grado ZC+ Cartridge and all!
man, that was too easy.