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Sony stereo amp ta-v7 left channel not working, cd, aux, tuner, o.k. phono

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Power Off, Open Top, Remove two screws around heatsink, two lugs and two connectors, remove poweramp board and disconnect from supply board. You will see a relay (black box) on the underside, (this is not the relay that you see as sson as you remove the cover, it is hidden) make a **** in each side and insert flat screwdriver to ease top off. Clean relay contacts with emery paper and switch clean.

Posted on Dec 11, 2011

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Posted on Jan 02, 2017

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Amplifier - TA-AX380; CD Player - CDP-C40; AM/FM Tuner - ST-JX380; FM Stereo/FM-AM Receiver - STR-AV570X, and Stereo Cassette Deck - TC-W380.....all Sony. Very old system, do not have the manuals, they...


Since you have 2 receivers, you can either use the Sony STR-AV570X or the TA-AX380. You will need 3 Stereo RCA Cables to connect your CD Player, Tuner, and Tape Player. The speakers connect to the receiver you choose using the speaker input terminals.

Here is the diagram (click on picture to enlarge):

pctech1_71.jpg

Jun 22, 2011 | Audio Players & Recorders

1 Answer

I HAVE NO CABLE BETWEEN TUNER AND AMPLIFIER


Normally you should have a stereo "line" connection. The cable consists of a pair of "RCA male connectors" on each end of the cable, "RCA" is the style of the connectors, usually one red and one black or white on each end.. "Line" refers to the type signal and voltage level of the signal. The tuner should have a pair of output jacks labeled as such and also labeled Right and Left. The power amp should have similar jacks labeled "tuner input" or "tape in", "phono in" etc. don't use phono or "mic in" if that is a choice. Use tuner in or tape in. Connect the same colors to the same channel on each unit, ie, red to right and black to left on each unit. On the amp you may have the option to select the input source. Select the one you are using for the tuner. Turn on the tuner and the amp and listen. Good Luck.

Apr 16, 2011 | Audio Players & Recorders

1 Answer

Hello i need help please..... I have a Technics SU-Z550 and SH-8055 Graphic Equalizer My amp has lost power... lots.! its working one channel louder than the other but the one which is louder still has...


If the same channel is dead on the EQ as is dead on the amp there may be a correlation.

Let's break this into its two parts.

1) SU-Z550: You don't say WHAT source(s) you tried to use on the CD/AUX, TUner and PHONO inputs. The external device itself could be the source of the low volume. Try swapping the Left and Right cables to see if it follows the source channel or stays with the amplifier channel.

Check the controls on the amp to make sure you understand each one's effect on the sound.

"PHONO" is literal and exclusively FOR A TURNTABLE - NOTHING ELSE - EVER.

2) SH-8055: Equalizers don't 'boost' sound, they modify its levels at various frequencies. To do that they should be connected into a Tape loop on your amp. OUTs go to IN's. Then you select the Tape Loop on the amp and that inserts the EQ into the signal path of whatever source you're listening to. It's actions are BEFORE any other amplifier controls such as volume, tone and balance. The EQ itself also has a Tape Loop to replace the one it occupies. Make sure it is not enabled unless you have a Tape Deck on it to use. Choose "SOURCE". The blue LED display is to show you frequencies are present in the program material.

Set all of its lighted band controls at midpoint prior to declaring it defective. EQ is like any spice - a little is good, a lot ruins the recipe.

Mar 21, 2011 | Technics Audio Players & Recorders

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I am hooking the system to a yamaha stereo receiver and i need to know what jacks to hook it to out or in 3 wire or just 2 because of no video just audio red white yellow the stereo reciever just has ...


Let me write some basic things about audio and video signals and cables. Stereo audio has two channels, left and right, usually red and white (or black) jacks. You plug in audio cables. Video signals in old receivers are marked in yellow. If your receiver does not have video (yellow) input, usually located above the two audio inputs, you will not be able to watch any video signal through the receiver. The receiver will only play the sound of dvd, since its left and right audio channels are properly connected. Just aux and phono inputs are not enough. Hope this may help.

Sep 07, 2010 | Audio Players & Recorders

1 Answer

Insignia stereo reciever inputs stopped working


check a button on the front labeled 'straight' or 'direct'

Nov 02, 2009 | Insignia 200W Stereo Receiver

1 Answer

I have hooked by two bose 161 speakers using 14 gauge speaker wire (about 8 feet) to sony str-dg720. But I get absolutely no sound from the speakers. I have hooked the speakers to port A set of input...


You gots ta isolate the problem.  Disconnect the speakers and hook them up to a stereo you know that works.  If you don't hear sound coming out of the speakers, then you know the speakers are fu.k.d up, so you need to look on the speakers to see if there is a fuse that is blown that needs to be replaced.  If you got sound coming through, then disconnect them and hook them back to the original stereo making sure you got a good connection and all the wires are in good and tight.  Then turn your stereo on and go through the various channels like Tuner, Tape Deck, Aux, and DVD to see if you get any sound.  Also turn the volume knob up. If you don't get any sound after all this, you know there is something wrong with the stereo your using.

Oct 29, 2009 | Sony STR-DE685 Receiver

1 Answer

No sound/data from dvd or tv to receiver( marantz sr4001).. tuner works as does aux where i run my mp3 from. have just rehooked up main and center channels after repair. nothing else has changed ..just no...


You may have to tell the amp which type of input the dvd and tv are pluged into eg phono,optical or coax,you should find this in the amp set up menu.
hope this helps.
CABLE GUY.

Jun 30, 2008 | Marantz Audio Players & Recorders

1 Answer

Trying to sort aux-in


Hi,
as you do not mention the model I have to guess that your player has a aux-in on phono (or RCA) jack. If you want to plug the iPod just buy a "Twin phono to 3.5mm stereo jack cable".
You can find in many superstores or Maplin.

Mar 30, 2008 | Audio Players & Recorders

2 Answers

TURNTABLE PROBLEM


You have a VERY nice turntable! TWO quick questions: 1) How do you define "minimal" volume? It is not NECESSARILY unusual that your turntable / receiver combination will have lower volume than your tuner, CD or DVD player. What happens when you CRANK IT UP?! Don't worry about the position of the volume control! 2)Are you changing the turntables output settings via the switch under the platter? Please post a reply and we'll go to the next step! Note: Ceramic cartridges are pretty much extinct. They were strictly low-end, low-cost, low-fidelity devices used in cheap audio systems of "yesteryear". Have you ever seen a BSR or Garrard turntable? Or your grandad's Magnavox Console Stereo? THAT'S where you'd find a ceramic cartridge!

Jul 12, 2007 | Teac AG-V1050 Receiver

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