Question about Technics SL-1200MK2 Turntable

2 Answers

Smoked small parts on the power circuit after changing the pop up light on the sl 1200mk2

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


Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    Visited the website for 3 consecutive days.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 12 Answers

The transformer is not fried (at least not likely)

PROTECTION IC'S 2 - 2SD637 (These are fried...$2 each...:)

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

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 515 Answers

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


Posted on Apr 21, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My AKAI 47' powered off, smoked-smelled, was checked by repair, no problems. Heard 2 pops, unplugged-HELP!

where there is smoke, pops something went---find another shop that knows what they are doing---never plug in a set that smoked!

Aug 27, 2012 | Akai PDP42Z5TA 42 in. Plasma Television

1 Answer

I have a Connex CX-3400 that I bought in April of this year. Well it made a sizzle noise and smoked, I have recieve but no transmit now. What could be the problem and woould this be covered under the one...

  • Hi, I can help.

  • If you never popped the cover (they can tell) then this should covered by the 1 year warranty. As for what happened, well you would have to pop the bottom off and look for the smoked part and get a schematic and replace the smoked parts and go from there. Anything could have happened to be honest. Most likely a resister fried like a cockroach.

  • I would contact the place you got the radio from and explain what happened. Talk to them about the warranty fix. If you run into roadblock and you want to fix it yourself then put up some detailed pics of the inside of the bottom side (non soldier side) of the circuit board so I can see what smoked out on your board.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Sep 22, 2011 | Connex Radio Communications

1 Answer


What happened was there was an arc between layers of the multi-layer circuit board in the HCA2400 power amp at the rear of the unit. It takes extensive labor to repair the board and $20 of parts.

If you replaced the fuse or if no lights come on, it likely took out the power supply too... that is about $30 of parts.

IF THE LIGHTS still come on, get a replacement HCA2400 module (includes heat sink) and replace it. They cost about $175 online.

I have repaired several of these, but it requires a lot of skill and time to repair the module as the burned area must be carved out and replaced with jumpers and several semiconductors have to be replaced and probably a metering resistor which is usual source of the smoke.

Sep 14, 2010 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

Wife smoked up the microwave now it has no power to it

If your M/W is a counter top model and you feel comfortable about removing the outer case the power supply should be fuse protected,open it up and search and check all fuses that you can find for any fuses that may have popped to protect that circuit when your wife accidently smoked whatever it was.Good luck and don't worry about radiation contamination inside the M/W just abide by the warning labels on internal parts!

Nov 22, 2009 | Kenmore Microwave Ovens

1 Answer

Smoked the ground wire going to the board

no one fix tghem as they are cheep and the parts are more costly including labor...
Microwave need ground I do not know how good you are in electric but you can make new ground for th unit it is easy if you know what you looking for...

May 25, 2009 | Cobra 2500w Power Inverter

1 Answer

Motorola CDM1250 UHF Radio

Renard, just offhand without see'ing the unit, I'd say that something got sparked wrong in the hookup process. The taletell "puff of smoke" tells me the protection circuit or protector diode got "smoked" in the process. It's more than a fuse now, the protection circuit is blowing the fuse, to stop further damage. I'd say that, at least the protector diode needs changed and to check out for any other damage. Probably need a good tech to visually "check" the unit thruout. Definately needs to have it put on the meters and guages to fix all the damage at one time, something that cannot be done by talking you thru it,,, Mechanic

Feb 08, 2008 | Radio Communications

1 Answer

Technics 1210 pop up light?

Maybe you should try putting a smaller (in Watts) lamp in the pop light...

Nov 09, 2007 | Technics SL-1200MK2 Turntable

1 Answer

Power failure

Hi Darren,

Out of curiosity, how did you find out it was this part at fault?

My deck has just had the same thing happen to it :(. Unfortunately turntables are not popular in Cyprus, so it looks like I have to diy it.

Sep 27, 2007 | Technics SL-1200MK2 Turntable

Not finding what you are looking for?
Technics SL-1200MK2 Turntable Logo

282 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio Players & Recorders Experts


Level 3 Expert

5259 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Technics Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides