• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Technics SP-25 Issues

brendanauth

brendanauth

AK Subscriber
Subscriber
I picked up a Technics SP-25 the other day that the seller described as “doesn’t come to a stop quickly”, but it turns out when I got it that when in stop the player just oscillates forwards and backwards less than a quarter turn. Once started it works fine in both 33 and 45. It looks like the left side of the AN6680 chip and associated resistors have gotten warm and the chip is warm to the touch when running. TP5 reads 20v, but I’m not too sure where to go from there. Any help would be appreciated! I have a beater SL-1200mk2 as well with a good main board that I could swap in for a bit, but I’d rather get this one working. I’ve had a few SL-1200mk2s, but have never encountered this issue before.
 
Register to hide this ad
Thanks! I’ll shoot him an email. I’ve measured some voltages and they’re a little funky off of IC101.
 

Attachments

  • image.jpg
    image.jpg
    96.7 KB · Views: 7
Kevin from KAB helped me out over email with some diagnosis. Turns out C214 before VR201 was shorted, I swapped it with the equivalent cap from a working SL-1200mk2 I have and all is well! I’ll be ordering some caps for this board. Figured I’d post in case any else has a similar problem in the future.
 
You must log in or register to reply here.
Back
Top Bottom