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Alpine 605 digital amp, watched wrench slip and cause big spark next to positive speaker wire out put, amp reads CUR, ive tried rebooting, unplugging ALL conects , still wont run just flashes CUR any advice before i spend money on a dealer!

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  • dereckconnor Oct 13, 2008

    thanks ill check it ou tommorow!

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It looks like that you have shorted out a output driver transistor, only option is to open up and look for scorched transistor, if you cannot see one then you will have to get a multimeter set to continuity setting testing.

take a readings between each pins in all possible combinations of all the transistor of similar shape and size, the transistor with the odd readings is the blown transistor.

Posted on Oct 13, 2008

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1 Answer

Kenwood VR 605 power light flashes


CHECK FOR CLEARED COOLING VENTS & FOR PROPERLY WORKING COOLING FANS. THIS WILL CAUSE SHUTDOWN OF THE UNIT. IF ITS ALL CLEAR, YOU PROBABLY HAVE A POWER SUPPLY ISSUE.

Dec 10, 2013 | Kenwood VR-605 Receiver

1 Answer

I cant get the speakers and sub woofer to put ouit clear sound. It is distorted and in many cases as I an trying to connect the speakers, the amp will shut off. HELP!


Follow this post, if you still have a problem, post a reply and I can help you further.


The most common problem found on FixYa for Audio Video Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Sep 19, 2010 | Harman Kardon AVR 120 Receiver

1 Answer

Stops working and reads Overload


hi there i have had this problem with technics amplifiers generally with them it was negative and positive mix up between input terminals for the speakers or in other case's running the amp with 2 many speakers.
eg. having 2 speakers Bi wired into 1 input making a 6.1 receiver into a 12.1 which makes the amp struggle causing overload or the worst case is a power unit problem.

Aug 01, 2010 | Panasonic SA-HE200 Receiver

2 Answers

Ive got a str-dg520 reciever and have a loud hum coming from all speakers have tryed removing all wires then putting back in but still happens


Try replacing the big Electrolytic Capacitors in the power supply section. When they go the let the 50/60HZ hum into the audio from the mains supply.

Mar 02, 2010 | Sony STR-DG520 Receiver

1 Answer

My Panasonic SA-HE9 reads Overload everytime I have the volume at -27. This has always been my best movie watching volume level. I have all Bose Speakers (201 Bose for Left and Right, Bose Center, and...


The most common problem found on FixYa for Audio Video Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Dec 27, 2009 | Panasonic SA-HE9 Receiver

1 Answer

Poping sound coming from pioneer amp


whitrashtruk,
Your M-91 has a 8 ohm rated amp. Your CV's are 4 ohm speakers. When your reduce the resistance the amp see's it requires the amp to work harder and will max out at much lower volume knob levels.

Simply put, you have big speakers that require big power. You receiver is not capable of providing the big power you need and will only cause damage to your speakers and receiver.

Buy a larger dedicated amp for your speakers as you will never hear the full potential of your CV's from any receiver. Both great components; just not a good match for each other.

-Chris

Dec 30, 2008 | Pioneer Elite VSX-91TXH

1 Answer

What then?


If you have an ohmmeter, you can verify the house wiring. Disconnect all the speakers from the amplifier. Disconnect the speaker wires from the speakers. Make sure none of the ends touch.

Connect the ohmmeter across each set of speaker wires. You should read an open circuit across each set of speaker wires. Basically if the meter gives you any reading, there is a fault somewhere on the line.

You could do the same test with the speaker wires connected to the speakers (but still not connected to the amplifier). You should see a reading greater than 4 ohms (and most likely less than 8 ohms) on each set of speaker wires. If you see a reading of 0 or 1 ohm on one set of wires, consider this suspect.

You mentioned earlier that you had 3 rear speakers each of 8 ohms... are they connected to one set of speaker wires at the amp? This would be an equivalent impedance of 2.7 ohms, and with loud volume, might be overheating a set of amp chips causing it to go into protect mode.

Let me know what you find.

Mar 24, 2008 | Onkyo TX-SR505 Receiver

2 Answers

Sony STR-DB1070


Check all your speaker connections and make sure there are no shorts where any of the negative wires can come in contact with any of the positive wires.

Dec 10, 2007 | Sony STR-DB1070 Receiver

1 Answer

Onkyo 605 Reciever no sound from zone 2 RCAs


did the AS amp ever work properly from the RCA's?

Dec 05, 2007 | Onkyo TX-NR801 Receiver

4 Answers

Amp switches off at about -10db volume level


I suppose that on all speakers connections + (positive) is on +, and - (negative) is on - ?

Oct 08, 2007 | Yamaha HTR-5830 Receiver

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