Question about Technics SL-1200MK2 Turntable
After replacing the light and powering the unit up it smoked a little and wouldnt come back on...I used the volt meter to check all circuits and all are goot but there are two small black parts in the power section of the board in the lower left part of the bord under the motor section...I am looking for some answers to where i can get parts of a good place to look to find trash units to get the parts off..Any help is appreciated..Thanks
The transformer is not fried (at least not likely)
PROTECTION IC'S 2 - 2SD637 (These are fried...$2 each...:)
IF NO POWER CHECK THESE are NORMAL
TRANSISTOR NPN 2 UNITS MAIN SOURCE OF NO POWER
Q2 Q3 (EBC label on the board)
I did this myself. EXACTLY the same thing. Two protection IC's (I prefer fuses -.-). Order from Syracuse semiconductors. 5count for $10 and fast free shipping. You can get singles for $2 on ebay if you only want five, but then you have to wait on shipping from China. Good thing I went with 5, because I ruined the first pair running the iron to hot. LOL but it works now.
This will help diagnose other problems. Check it out.
Posted on Feb 01, 2014
More than likely you fried your transformer. Also take a look at the fuses - some units have them, some don't - so first check to make sure they are not blown.
FYI, this unit has just enough circuit protection, and many times, when the Pop-up light or other repairs are done to the unit, and not done properly, issues such as these will occur. Especially with the pop-up light. Disconnect the pop-up light connection on the main board, then try powering up your unit. If it doesn't work, then your transformer is definitely fried and will need to be replace. You can order a replacement transformer HERE
DJ PRO LAB
Posted on Apr 21, 2008
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Posted on Jan 02, 2017
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