Question about Technics SB-AS500 Subwoofer

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IC Component A power brown out damaged my Technics sub-woofer. An IC - TOP227Y is needed. Can you say where I can obtain this component? The TOP227Y is a member of the TOPSwitchII family of Three-terminal Off-line PWM Switches.

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Hi guardofsv....your Circuit may be ordered from any of the following Website URL's listed below....good luck my friend.

Posted on Aug 08, 2007

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Posted on Jan 02, 2017

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1 Answer

Sub woofer will not work


Check the speaker of the sub=woofer. If found OK, check and replace the damaged component/s at its audio output section circuit. Contact any service technician. Electro help

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Have sharper Image i tower omega with ipod dock- speaker is making pop-pop-pop.......through 2 sub woofers even quietly in power off state. Any suggestions, thanks.


Hello
The audio output section of your device is faulty. It has shorted output component, transistor or IC, whichever may be used. The set need repair. There may have other reasons to blow up these output amp devices. You must check the device for it, before replacing the faulty component.
Actually this is a skilled work, and you must have through knoledge, in electronics, and edperience to do this type of work. Moreover, all testing equipments also is needed.
Never switch ON this device, until the fault has been rectifed. Switching it ON at this condition, may make other components in it also may get damaged; especially speakers. OK.

Feb 01, 2012 | Audio Players & Recorders

1 Answer

QUESTION ABOUT SPEAKERS. SPRCIFICALY WOOLFER. WHAT KIND OF WOOLFER SHOULD WORK BEST WITH THIS AMP?


hi,
Do you mean sub woofer. Then you can select any brands Active sub woofer ( active means built in amplifier) to connect with your system. They comes in different power (watts). you can use an active sub woofer with 100W output.
connect the sub woofer pre out of you amp to the pre input of sub woofer.
ok

Feb 05, 2011 | Technics SA-EX500 Receiver

1 Answer

I'm in dumaguete city, where can i find a sub-woofer speaker for my Sony MHC-GNZ8D mini component?


What kind of sub woofer do you need? a powered one? or simple a sub woofer?

Jun 03, 2010 | Audio Players & Recorders

1 Answer

Sub-woofer shutting off


woofer circuit problem! it could have been overdriven causing overload to the component on the circuit. check woofer circuit for damage components, most likely power ICs and capacitors bulging

May 20, 2009 | Audio Players & Recorders

2 Answers

Technics Receiver SA-DX940 subwoofer


Make sure subwoofer button is pressed and registers that sub is set on, the check dB level adustment for sub channel with remote.

Mar 16, 2009 | Technics SA-DX940

6 Answers

Problem with subwoofer and one off the speakers.


check out the amplifier ic in the receiver unit of subwoofer as the number of ic is IC346JC this has to be replaced.

Mar 13, 2009 | Technics SA-DX940

1 Answer

Hi I own a Technics Hi-Fi system (Model SC-EH780) and would like to attach a subwoofer to it. I cannot find the subwoofer unit that is supposed to go with this system. Can you help?


Any powered sub-woofer will work with it. Check the back of the Technics, make sure there is an RCA output labeled "Sub-woofer" or "Woofer" or "Sub". If so, you can get any brand of powered sub woofer and it will work. A powered sub-woofer is one with an amplifier for the sub built into the box and you will need to plug it into an A/C outlet as well. The only exceptions to what will work with this unit is to make sure you are not buying a sub-woofer that is made to only work with the companion unit it is originally sold with. Many Panasonic and JVC sub woofers are like this. Just look for a sub-woofer that is not part of any system. Velodyne makes some really great sub-woofers that would work nice with yours, but they can be a little expensive, but they are very good.

If your Technics has no RCA output for the sub-woofer, you will need to make sure that whatever powered sub-woofer you buy has a speaker level input for it. Most powered sub-woofers have this feature, so that you may just run the front speaker outputs of the receiver into the subwoofer and then the sub-woofer will have a set of speaker outputs right below the speaker inputs so you can still have your front speakers connected to that and not loose anything from your system.

I hope I have explained this in a manner you will understand easy, if not just post whatever questions you may have right on this thread and I will get back to you as soon as possible.

It would also be appreciated if you could rate this solution if you no longer need any help from me. If you do require more help, please wait to rate this until we are finished. That way I do not get an undeserved bad rating when we have not even finished our communications.
By the way, A "Thanks for trying" and "Helpful" rating are really not good, they always end up lowering my overall score.

Dave

Nov 09, 2008 | Audio Players & Recorders

3 Answers

Powered subwoofer hum


The input filter capacitor of ur sub may be damaged,the possibility is upto 99%.u can identify the capacitor easily as it will be the the larger capacitor in that board and is located near the power supply entrance.the component costs within a dollar

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