Question about Technics Audio Players & Recorders

1 Answer

Amp won't power on

I've got a Technics SU-X840 integrated power amplifier that I got off a friend. They said they hadn't used it for a while and when we powered it up there was a blast of very loud music (from the radio getting a signal), and then the amp shut down. After that I can't power up the amp at all, although the other separates do still draw power through the unit. What should I be looking for? Many thanks.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Technics Master
  • 5,190 Answers

It sound like the main power amp has failed. Look at whatever is on the big heatsink as to the cause. As with any device from "friends" it could be that someone has tried to fix a fault and made a mess. So look carefully at the soldering to any of it's parts.

Posted on Jan 05, 2013

  • RICHARD CHILVERS
    RICHARD CHILVERS Oct 20, 2013

    I have the same problem, found a line of dry joint on all three of the transistors to the left of the large black PA module. I think i can re-solder the 6 joint through the back cover with a slim iron.

×

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
Grubhead
  • 5190 Answers

SOURCE: I have a Technics SU-V460 Integrated Amplifier that won't stay on....the power button doesn't stay pushed in. When I hold it in, it works but the button makes a crackle sound.

It sounds like the switch might be broken. It might need to be replaced.

Posted on Dec 09, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

On my Technics SU-G90 where do I connect the subwoofer


Some amps have a single RCA socket for a powered sub. If it has not got one of these then the amp has no output for a powered sub. If so then you can only use a none powered subwoofer, which will connect via the speakers of the amp, see the subwoofer manual for how to do this.

Feb 18, 2014 | Audio Players & Recorders

1 Answer

How do I hook up a stereo reciver to the technics su-g91


I assume you want to use the SU-G91 as a power amplifier to drive your speakers. If your receiver has connections for inserting an equalizer (may be labeled pre-amp output and power amp input), remove the jumpers between the pre-amp and the power amp, then run cables from the pre-amp to the SU-G91 inputs. You can have an equalizer between the receiver and the integrated amplifier.
If this is not available, use the recording output (for a tape recorder on older receivers). Note that the volume control on the receiver will be bypassed with this connection.

Sep 23, 2012 | Audio Players & Recorders

1 Answer

Hi I just got a Technics SU V2 amp and can't get sound from the speakers. What size speakers would suit this amp? What is the correct method to connect the speaker leads to the back of this amp,...


Being a 500W amplifier, you need to connect speakers with 300W each. The correct method to connect speakers is red terminal of speaker should be connected to red terminal of amplifier & black to black. The left side to left side speaker & right to right speaker. There may be main & remote terminals. Main speakers are the speakers at local place of the amplifier & remote for remotely placed speakers. I do have Technics SU-V85A which is somewhat similar. Enjoy! A nice piece to listen.

Oct 22, 2011 | Technics SUV500 2-Channel Amplifier

1 Answer

I have a Pioneer VSX-520 receiver and was told I need a pre-amp to hook up my record player.I purchased a technics integrated power amplifier from a flea market and was wondering if it is compatible with...


IF the unidentified new Technics Integrated Amp has a PHONO section it will support the turntable.

IF the unidentified new Technics Integrated Amp has, say, a Tape Output, that could feed any Line Level input on the Pioneer. OUT to IN.

Aug 07, 2011 | Pioneer Audio Players & Recorders

1 Answer

Technics Integrated amplifier su-v85a speaker volume fluxuates and speaker left shuts down some times what is the problem?


test you speaker maybe there is a bad connection some where is the spk. box its self ,try changing speakers left to right .
it the spk. are ok open amp see all the connections within the amp .
if this dose not work contact me by mail: starilaz@net.hr

Oct 12, 2009 | Technics SUV500 2-Channel Amplifier

2 Answers

I need a cooling fan for my su g50 where can I get one web site maby


The fan assembly can be purchased from tritronicsinc,com (use the guest account) for $24.31 using part number SYE1128-4


Dan

Jul 11, 2009 | Technics Audio Players & Recorders

1 Answer

I have a technics amplifier SU G75


I have a technics too, and faced the same problem. The solution is very simple just ensure the +ve and -ve wires are connected correctly for each speaker to the amp. Eg. red wire to the red knob and black wire to the black on both ends. sometimes this arises because the wires are of just one color however there will be some marking on the wire to indicate which is +ve and -ve. This took care of the overload problem.

Jun 18, 2009 | Technics SA-AX530 Receiver

2 Answers

Technics su-a808 amp & sh-ge70 graphic equaliser.


connect your media source(dvd-cd player)to equalizer in-connect equalizer out to amplifier line in-or aux in-connect amplifier out to your loudspeaker.

Jun 24, 2008 | Audio Players & Recorders

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5190 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

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

Answer questions

Manuals & User Guides

Loading...