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Open Power Transformer in a Technics SL-D2 TT. Anyone know the sec voltage?

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5 Suggested Answers

  • 4234 Answers

SOURCE: Yamaha RX-V420 No power

If the standby voltage exists, the next step is to see whether or not the clock is working. Find the main micro chip. There should be a 3 legged crystal close by. You should see this oscillate (use a scope). No oscillation = no micro control = no turn on. It is possible that the micro is bad or the crysal is bad. Also, check to be sure that the output transistors are not shorted. It is also possible that these are preventing the system from turning on.
Dan

Posted on May 12, 2008

SOURCE: How to remove a Technics sl- db20 platter

pull

Posted on Jul 28, 2008

informatica
  • 1114 Answers

SOURCE: i picked up a technics

Hi - I got the manual for the SL-1100 (which I guess is close enough) from the following site:

http://www.vinylengine.com/

It has a schematic:

56ad242.jpg

So your guess of 18 volts was spot on!

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Posted on Sep 06, 2008

  • 4 Answers

SOURCE: How do I switch off demo on a sl-dv170 technics?

got the sc-dv290 model, not sure but I'd asume they are all the same
PRESS AND HOLD [-DEMO] until "NO DEMO" is displayed

Posted on Feb 17, 2009

  • 1 Answer

SOURCE: Philco 841.205 Power Transformer

Hi:
...I have a brand new one exactly the same (Philco) that I will sell you for ten bucks.... but I don't know where you are?
Please e-mail me at: brodi@telus.net

Posted on Mar 24, 2009

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The power supply of the turntable needs checking. It could be just a fuse or something more serious, such as a faulty transformer.

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Register (free) at VinylEngine.com. Go to their Library, find your TT, and DL the correct Service Manual.

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There is power going through my technics 1210,but the platter & strobe light still will not work


how do you know theres power to the unit if theirs no strobe light pitch adjuster light & the platter doesn't spin?
the power comes in & to the transformer first,then through the strobe switch, the transformer is what blows when you short the target light out.....i've seen this many a time when people try & change the target lights to blue neon.

Mar 04, 2013 | Technics SL-1210 Turntable

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My technics 1200 mk5 is blowing a 125V 250 mA fuse on the board just after the transformer


There must be a shorted power transistor in the power supply area. Check the voltage output of the transistor to determine which part is having a short circuit.

Nov 08, 2010 | Technics SL-1200M3D Turntable

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I picked up a technics SL-1100A turntable it is missing the power supply transformer. i require a schematic, or, can you tell me the ac voltage required to operate the unit. my guess is somewhere between...


Hi - I got the manual for the SL-1100 (which I guess is close enough) from the following site:

http://www.vinylengine.com/

It has a schematic:

56ad242.jpg

So your guess of 18 volts was spot on!

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Sep 06, 2008 | Technics Audio Players & Recorders

2 Answers

Turntables voltage been changed now wont turn on


have you switched the voltage switch over underneath the turntable plate

Aug 14, 2008 | Technics SL-1210 Turntable

1 Answer

Technics SL-1200 MK2 French - does not power up


The only thing that would cause a power failure would be a faulty transformer. However, since you had issues before it went dead, it was those issues which probably put a strain on the power and eventually fried it. So, you will first have to have the power transformer replaced, then have it troubleshooted to find out what is causing the warp mode.

It shouldn't cost too much to get it fixed. For something like this, we would charge about $150-180, which would cover everything. New Technics go for $400, and used ones go for about $300 - so it's up to you.

Nothing in AZ unfortunately. But if you call any DJ rental company, they might be able to refer you to someone locally.

- DJ PRO LAB
www.DJPROLAB.com

May 17, 2008 | Technics SL-1200MK2 Turntable

1 Answer

No power


With a voltage meter, open the table back up to where the fuse is under the on off switch. With the table plugged check the voltage meter check the incoming ac prongs for 20V. Also, the 1210 has a voltage switch under the platter to the left
 a little hole for which a flat head screwdriver is needed to switch the voltage. If you live in the UK or outside od the USA it should be on 220V, IF YOU LIVE IN THE USA, IT SHOULD BE ON 110V. If your electricity is 110/120 and its on 220, the transformer is most likely fried. If your electricity is 220V and its set to 110V , then its not getting enough current. Its possible the transformer could have gone bad, with no smell of burn or sign of damage. Also, check board with all the capacitors on it around the motor, check fopr any leakage...


If service Technics for 15 years and sometimes i'll se voltage issues I've never seen before.....

Oct 27, 2007 | Technics SL-1210 Turntable

2 Answers

Blown Fuse


The fuses for this model are located underneath the turntable platter. You can replace this yourself, however, please be sure to disconnect the unit from it's power source before proceeding. You will have to remove the metal turntable platter, exposing a black protective cover. Remove the cover, and you'll see the main PC Board. There are 2 fuses on the lower left side. Pull the fuses and take them to your local electronics store, or order online @ www.1200s.com. IF your unit does NOT have any fuses, then your transformer is damaged, and will need to be replaced by a qualified technician. Also, the fuses are only meant to circumvent small changes in electrical current. Many times, these voltage surges, will fry the fuses and the transformer. So if after you replace the fuses, it still doesn't power up, you will need to also have the transformer replaced. Good Luck!

Sep 14, 2007 | Technics SL-1200MK5 Turntable

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