Question about Sonance Sonamp 1250 Mkii 1250mkii 12 Channel Amplifier/control Center

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Plays/provides power for a minute; then hear a click and fails to work...ideas? is the unit itself repairable?

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Sounds like the "click" is a relay switching from closed to open position thus cutting off the amp. try to turn down the input volume on the amp.

Posted on Nov 10, 2019

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Receiver doesn't play sound until it's warmed up 5 - 10 minutes


Unfortunately, your question has too many variables. Try this. Unplug the unit. Plug it back in. When you first push the power button, you should immediately hear one mechanical click from the unit, followed by a second click with 5-10 seconds. If you don't hear the second click, the unit may have a condition known as DC Offset. It would be unusual to have DC Offset only within the first 5-10 minutes. It's possible that power supply has an issue where both the positive and negative voltages are not coming up at the same time.

If you are interested in having your RCA repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

May 22, 2015 | RCA RT2500 System

1 Answer

Hi Just wondering if you could tell me some troubleshooting ideas for an Amana air conditioner--it seems to be getting power--we are hearing a noise coming from the unit indicating that it is getting...


Every air conditioner has a motor called a compressor. The compressor provides the cooling capacity for the air conditioner. If the compressor or its electrical controls are defective the compressor may try to start, fail, and create an electrical overload. If the unit does create an overload, every compressor circuit is also equipped with an overload safety switch. The safety switch is designed to protect the compressor from burning out. The safety switch will cut the power to the compressor for a certain length of time and then reset itself. When it resets it will allow the electricity to flow to the compressor once again. If the compressor then starts, the unit should function normally. If the compressor doesn't start when the overload resets, the overload will again cut the electricity to the compressor. This cycle will continue indefinitely. (Always allow three to five minutes before restarting the compressor.) If this situation is occurring, unplug the air conditioner and get help from a qualified repair technician. This problem is often fatal to the air conditioner because the cost of repair often exceeds the price of a new air conditioner.

To start a compressor you need a start contactor - relay and a capacitor. The click you hear could be from the contactor, which could be normal OR could mean that the contacts are not staying closed which would not allow the compressor to start.

Jul 22, 2011 | Amana Heating & Cooling

1 Answer

The remote to my RCA DVD Player, Model DRC220N, has stopped working. I've tried new batteries, hitting the DVD button 1st, etc. Nothing works. The player itself still seems to work as the buttons...


You could try a universal remote (if one is available which will provide most functions to your player, such as STOP/PLAY etc.).

You can try a simple test on your existing RCA remote to see if it provides a 'frequency pulse'. Turn a radio on, select a black section of the AM band (not FM) turn volume up halfway, place remote near it, listen for pips and noises from the speaker(s) - if this occurs, the remote itself is OK. This is the cheapest idea to try first before going out and buying a new remote.

* If the unit does not respond to the universal (regardless of whether a remote code is required or not) then the IRD within the unit itself and its associated controller circuit may have failed (hence why the remote does not work). Repair of this requires a qualified workshop technician (because of the many surface-mounted components in the IRD controller circuit). *

But try the original remote-to-AM-radio test and/or purchase a universal remote or similar if necessary.

May 12, 2011 | RCA DRC220N DVD Player

1 Answer

52" rear projection tv has no power and fuse is ok


The clicking noise that you are hearing is actually the power relay. Normal operation by either the remote or the power button on the front panel, you would normally hear a soft click just after the press of the power buttons to turn the unit on or off. When you initially plug the unit in to power, you will hear the same click noise. Being that you are hearing it all the time indicates a failed relay. TV's now a days, or at least ones built during the last 15 - 20 years have different Printed Circuit Boards (PCB). There are PCB's for power (which youre dealing with now), sound,video and so on. The PCB that you need to repair your clicking issue will run you about 80 U.S. dollars for the part plus the average going rate for repair from a qualified service tech. You could purchase the part from Thompson Consumer Products repair and fix it yourself, but be aware, there will be no warranty on the part itself unless an authorized tech does the work. Located on this PCB is the power on/off relay, fuse, usually 4-5 connectors for power to different PCB's (depending on model and features). Now depending on how old the TV actually is, you may want to invest in a newr set, the reason why I say that is, is because the new power unit may and can overload the other boards and cause damage to them and now you have a new problem to deal with( along with more money being tossed down a hole.

Good luck

Sep 19, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Unit shuts itself off after 10 -15 minutes


Protect mode will kick in whenever a fault is detected.

You get the unit not powering up, and sometimes you hear a clicking noise, that is the protection switch that keeps shutting down the unit.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Jan 08, 2009 | Samsung HT-WX70 Theater System

1 Answer

My Panny AE700U shut down & won't restart


HI there

This is a faulty Mainboard that will need either repair or replacement.

If a Projector starts playing on and off tricks I have found it to be 99% of the time a faulty Mainboard.

Apr 13, 2008 | Panasonic PT-AE700U Multimedia Projector

1 Answer

Unit won't power up completely


The clicks you hear are the relay that completes the circuit for 110V AC to the main power transformer. Mine had the same problem and here's how I've gotten it to work. A lightning strike near our house caused it to fail, and I traced it to the power transformer relay activation circuit. The tuner and amp were fine. I found a bad transistor in the relay circuit, but didn't have a replacement on hand, so I soldered a jumper wire across the relay switch connections on the power transformer circuit board. This connects the 110V AC directly to the power transformer. DC Power to the amp and tuner circuits will still be controlled by the power switch, but the transformer will be supplying all the AC voltages to the main board. If there is a real problem with the circuits that load the transformer or the transformer itself, then the fuse will blow. If the fuse doesn't blow then I suspect the problem is just in the power sequencing circuit itself, that is not needed for operation other than to make the unit "Energy Star Compliant". A lot of electronic items have a transformer that is not switched, and only fused, so that the supplies are available at all times.

Jan 24, 2008 | Audio Players & Recorders

1 Answer

NO picture


If you go to the following link. we have the service manual for your tv for 10.99 and we provide unlimited chat support to help diagnose and repair your TV. Just click on mitubishi and you will see your manual. then click on the contact us link and provide your email address we will email your manual and instructions on how to enter into the chat sessions. Hope this helps.
http://servicemanuals.vstore.ca/

Jan 12, 2008 | Mitsubishi VS-45603 45" Rear Projection...

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