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790 it has power but no sound at all / no volume i think it is in the circuit board but can not find a new board

Bought it cheap !seller said it had no power !,i fixed that but it has no sound at all every thing comes on etc. and the remote does not work

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Posted on Jan 02, 2017

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  • 4234 Answers

SOURCE: Onkyo TX-8011 stereo receiver only rt. channel works barely.

First of all verify that there is no need for a "shorting plug" on the back of the receiver. Look for Pre-amp IN and Amp-IN RCa jacks. These may need to be connected. Also verify that the tape monitor switch has not been engaged. This too will result in only hearing crosstalk when the volume is all the way up. Update this with your results and we'll continue from there if the problem remains.

Thanks,
Dan

Posted on Dec 18, 2009

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dunnbiker
  • 8546 Answers

SOURCE: Volume is stuck on max.

Do you have the manual and have you thumbed through it?

Register and download the manual for free at
retrevo.com

http://www.retrevo.com/support/Onkyo-TX-SR700-Receivers-manual/id/365ag223/t/2/

It always puzzles me when someone fixates on the remote when a unit has front-panel controls. You say "The pot does not seem to be the issue." Does that mean it is ineffective or is it faultless in your estimation?

The HUGE volume knob (#16 on page 8) controls volume (in the main zone), too.

If your complaint involves speakers on Zone 2, the up/down arrows at #22 on page 8 apply.

Posted on Mar 01, 2011

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1 Answer

My Kenmore 790 Electric Range has the code nCAL on the display. What does this mean?


This usually indicates an electronic oven control board failure. It could also indicate a failure of the sensor probe, one of the elements, or the wiring. Try turning off the power for a while, 10 minutes or longer. If the problem persists when power is reapplied and none of the keys respond, you need to unplug the range (or shut off the power at the circuit breaker). Then usually you need to replace the oven control board and overlay. If you post the full model number of your range, I may be able to check for the appropriate replacement part.

I hope this helps. Kenmore appliances with 790 were manufactured by Whirlpool.

Cindy Wells

Oct 25, 2016 | Kenmore Kitchen Ranges

1 Answer

Brand new out of box Sony KDL46V3000 will not come on. Green light at bottom comes on but no picture, volume, or menu. I bought this TV New and never unpacked untill we completed remodel about 13 months...


Best take the tv backcover off,check all circuits boards for lose wires or broken circuits boards.Secound,take a air hose or a fan turn on high,blow in all the circuits boards.Third put the tv back together again.Wait about 20 mins,plug in the incomming broscating signal cable first,than the power a/c cord.Turn the tv on.The tv should work.That should solved ur tv problems.

Sep 10, 2010 | Sony BRAVIA KDL-46V3000 Television

1 Answer

Power won't turn on


I had a similar problem to this. It turned out that the button on the main circuit board was broken. Take the cover off the printer and look at the main circuit board for any damage. I replaced the broken button and the printer turned on right away. Another option you can try is to replace the entire board if you can find a "parts" printer on ebay.

Jun 04, 2010 | Alps MD 5000 Thermal Printer

1 Answer

The volume on my SX-790 is very low, even when


This can be caused by a number of things. Lets check the simple ones first:

1) Verify that the tape monitor switch is not ON. If it is in the monitor position, the low volume will be the "cross-talk" only and be very weak.

2) If not #1, then you likely have defective transistors in the ouitput section or have a power supply problem. With the B+ voltage mising, you will be attempting to drive the speakers with the "driver" circuit rather than the output section. This can also occur if the transistors fail "open" rather than "shorted".

Check the tape monitor switch and update this with the results. We will continue from there.

Dan

May 15, 2010 | Audio Players & Recorders

1 Answer

Loud humming sound. Blown power adapter transformer. Bought new adapter same humming


The power adapter that blew damaged the amplifier circuits inside the sub (or a damaged circuit caused the power adapter to blow)... in either case, if you have electronic skills and access to a oscilloscope, you can trace the signal on the circuit board. The suspect components to look for would be around the connectors for the power supply to the circuit board.

Apr 08, 2010 | Altec Lansing AVS 500 Computer Speakers

1 Answer

Low sound at high volume


Hi,

THe problem is with the variable resistor present behind your volume control knob, try replacing the volume controls variable resistor, this must work fine... this is a common prblem for all the music equipment that has knob control for the volume....

This resistor can be replaced with your product warranty, contact your seller for the details regarding warranty...No need to woory about this, this is a sommon problem for most of recievers


ENJOY! RATE THIS SOLUTION
RNJ VINOD KUMAR

Jul 04, 2009 | Sony STR-DG1100 Receiver

2 Answers

Volume control appears on screen uncommanded and cannot be sent away


I had exactly the same problem. The volume up button was constantly on, causing the on screen display to be permanently displayed. Here is the solution to fix it. This will also work for any other front panel buttons that are misbehaving.

Note: If you monitor is still under warrantee, don't try and fix it yourself - just send it back.

If you open your monitor you will find a small circuit board with a row of microswitches mounted on it. This is the circuit that's causing the problem.

To open your monitor you will need to remove the stand (one plastic cover that unclips by hand and 4 screws that can be removed with a philips screwdriver). This will then reveal two additional countersunk screws that need to be removed.

You can now remove the front cover. There are 4 clips at the base of the cover that can be removed by hand. You then need to pry the cover off, starting at the corner next to the power button. This is really quite stiff and you need to use a reasonable amount of force. Don't worry about the loud cracking sound as each clip along the side releases.

Once the cover is removed you will see the circuit board with the microswitches staring you in the face.

This board needs to be replaced but if you want to fix the problem immediately here is what I did.

Disclaimer - Proceed at your own risk from here on in.

Plug your monitor back into the power and reconnect to your PC. Make sure it's on and still showing the same problem.

The curcuit board unclips and there is a 7 pin connector that also can be unclipped. Remove the board and undo the connector. You don't need to switch off the power.

After the board has been removed for a few seconds, the on screen display that was permanently visible should disappear.

Now I temporarily disabled the malfunctioning button by bending the associated pin on the connector 90 degrees and then reattaching the connector.

How do you know which pin is associated with which button. Trial and error. Simply bend down a pin, and reattach the connector. If the problem persists, unplug and try the next pin.

When you've found the correct pin, straighten the others and reattach the connector.

Clip the curcuit board back in, making sure the connecting cable is clear and doesn't get pinched.

Reassemble your monitor and you're good to go.

The next step is to order a new circuit board from Philips. These should be really cheap (I hope) and you now know how to fit it yourself.

I'm going to try ordering one tomorrow.

Mark Gladding

Aug 03, 2008 | Philips 190B6CB/27 19" LCD

2 Answers

Very low output


Are the Philips speakers powered ????
Try in the headphone socket on a radio and check the sound then.

Jul 31, 2008 | Philips SBP1100/37 Portable Speaker System...

1 Answer

Volume control is constantly on


It may be a malfunctioning circuit board controlling the buttons on the front. If it's under warranty ship it back to Philips; if not markgladding on this site sent me the following advice. Standard disclaimers apply and any questions or comments should go to him.
-------------------------2nd hand advice begins-----------------------------

If you open your monitor you will find a small circuit board with a row of microswitches mounted on it. This is the circuit that's causing the problem.

To open your monitor you will need to remove the stand (one plastic cover that unclips by hand and 4 screws that can be removed with a philips screwdriver). This will then reveal two additional countersunk screws that need to be removed.

You can now remove the front cover. There are 4 clips at the base of the cover that can be removed by hand. You then need to pry the cover off, starting at the corner next to the power button. This is really quite stiff and you need to use a reasonable amount of force. Don't worry about the loud cracking sound as each clip along the side releases.

Once the cover is removed you will see the circuit board with the microswitches staring you in the face.

This board needs to be replaced but if you want to fix the problem immediately here is what I did.

Disclaimer - Proceed at your own risk from here on in.

Plug your monitor back into the power and reconnect to your PC. Make sure it's on and still showing the same problem.

The circuit board unclips and there is a 7 pin connector that also can be unclipped. Remove the board and undo the connector. You don't need to switch off the power.

After the board has been removed for a few seconds, the on screen display that was permanently visible should disappear.

Now I temporarily disabled the malfunctioning button by bending the associated pin on the connector 90 degrees and then reattaching the connector.

How do you know which pin is associated with which button. Trial and error. Simply bend down a pin, and reattach the connector. If the problem persists, unplug and try the next pin.

When you've found the correct pin, straighten the others and reattach the connector.

Clip the circuit board back in, making sure the connecting cable is clear and doesn't get pinched.

Reassemble your monitor and you're good to go.

The next step is to order a new circuit board from Philips. These should be really cheap (I hope) and you now know how to fit it yourself.

Jul 11, 2008 | Philips 190B6CB/27 19" LCD

1 Answer

Not enough power delivered


This sounds like a gain setting problem on your amp. The best way to adjust is to set your volume on the head unit to about 75% volume and then adjust the gain up until it sounds distorted a little. Back it off jst enough for the distortion to go away and you are set. Only other thing to try is use a multimeter set on Ohms to test the resistance of your speaker configuration. Looks like 2000 is th peak power (not RMS) and is only possible at high current configurations. You are probably running at 4 Ohms, but this amp only puts out rated power at 1 ohm stereo or 2 ohm bridged. Many people say Performance Technique are overrated, so maybe not even what it is rated at - 350 x 2 @ 2 ohms bridged (probably only about 175 x 2 at 4 ohms bridged)

Feb 06, 2008 | Performance Teknique ICBM-9540 Car Audio...

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