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edwin oliveira Posted on Jan 03, 2019
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How to reset the output protection circuit on a technics model su g70 amplifer

1 Answer

Stephen Miller

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  • Technics Master 1,645 Answers
  • Posted on Jan 03, 2019
Stephen Miller
Technics Master
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5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Jan 18, 2008

SOURCE: Technics SU-G70 clicks but doesn't display or sound

I just got mine back from repair shop, same symtoms, they replaced power supply, in your case it was hit and miss for a while, so maybe bad power supply connections inside.

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Anonymous

  • 515 Answers
  • Posted on Dec 18, 2008

SOURCE: Having a hard time connecting various audio components

Yes, it is a little tricky...

1) CD Changer (output) -> CD input on Amp

this is tricky... this will allow you to record to your tape deck, and control the sound via the EQ:
2) Tape Deck (tape out / recout) -> TAPE PLAYBACK on EQ
3) Tape RecOut on EQ -> Tape 1 Playback on Amp
4) Amp Tape 1 RecOut -> Tape Deck Playback / Input / RecIn
in essence, your creating a loop starting from the tape deck, going to the eq, then to the amp, then back to the tape deck to record.

Your EQ has another set of LINE IN and LINE OUT - use the second Tape 2 on the amp to create another loop. This will
allow you to control the EQ for any of the other sources.
5) LINE IN on EQ -> Tape 2 RecOut
6) Tape 2 Playback on Amp -> LINE OUT on EQ

5) Radio Tuner (output) -> Tuner input on Amp
6) DVD/VCR Combo Output -> AV/AUX on Amp

7) PC Computer... you don't have room for this. You can either use the PHONO input, and you'll have to purchase a Line Level Phono Converter
or, get a Y cable and split the signal and share with some other source.

Hope this helps.

- OPTiC
www.djproaudio.com
www.repairny.com

Anonymous

  • 515 Answers
  • Posted on Dec 18, 2008

SOURCE: Hooking up audio components

This was answered here: http://www.fixya.com/support/t1371668-having_hard_time_connecting_various

- OPTiC
http://www.djproaudio.com
http://www.repairny.com

Anonymous

  • 504 Answers
  • Posted on Jun 06, 2012

SOURCE: Speakers for Technics SU X933?

check given link for speakers
http://www.fixya.com/myhome.aspx#Answers

Anonymous

  • 1 Answer
  • Posted on May 27, 2013

SOURCE: TECHNICS SU-V50

Goodevening,I<m looking for an current Drive for mt amplifier technics SU-V50.

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Technics su-Z750 Intergrated Amplifier stays in Standby

HI...
This happens when one or more components in the power amplifier section has failed.

The protect circuit keeps large DC voltages off the speakers.

The only thing you can check for before finding a tech is that the speakers are firmly connected at both ends. If they are ok, you need a tech

PLease rate my help if this helps
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System wont come on shows f61 on screen

This the code for protect mode. A problem was detected in the final amplification stage. Without the model number I can't give you details, but the output stages for most units that give this message are amp-pacs that cost between $65-$95.

Dan
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The pa won't work. Tried a different outlet. nothing happen

Because you have not indicated a make or model, I can't rpovide any details at all, but I would suspect that the outputs have shorted and that the main fuse has blown. Replacing the main fuse may show you some lights, but you will not likely get any output. The internal protection circuits will prevent the outputs from working. Please post the make and model and I should be able to provide you with more details.

Dan
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Blinking light on front of amplifier Technics SU-V10X

Blingking Light usually means that there is DC appearing in output stage and is protecting Connected Speakers.
It can be faulty Output Stage (Bad ICs/Transistors/Resistors/Capacitors) or Faulty Power Supply.

Working on These types of Problem is not user friendly at all.

Advising to take local Authorized Shop.
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Hooking up audio components

This was answered here: http://www.fixya.com/support/t1371668-having_hard_time_connecting_various

- OPTiC
http://www.djproaudio.com
http://www.repairny.com
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Technics SU-V2 keeps cutting out

An amp will cut out if the output protection circuit kicks in. This circuit compares output power against the preset level. Each channel has it's own, independent protector. There are calculations that can be done, but for a novice the rule of thumb is to "never use a speaker with a power rating less than the amp AND a lower impedance than stated". Typically using a 4 ohm load on a 8 ohm system is inviting disaster. Even if the system does not become a smoke generator, you might notice that though "louder", the sound quality is deteriorated. Many "audiophiles" often hook up some combinations of speakers to have "surround" without really understanding that the collective impedance actually changes (generally lowers).
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Technics SU-G70 clicks but doesn't display or sound

I just got mine back from repair shop, same symtoms, they replaced power supply, in your case it was hit and miss for a while, so maybe bad power supply connections inside.
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