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No output from my receiver

Lights go on, all looks good, fuse is good, but nothing to the speakers. Is thgis worth fixing, is it a "tube" receiver, or just junk it? Nay ifo is helpful, thanks! sansui solid state 200 vintage receiver

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Some of the older radios are worth money, seeing how they are antiques, so I would research yours, make sure how much it's worth, check tube prices, try to find one on ebay or some other place, and repair it, because chances are it could be worth money.

hope this helps you out

Posted on Apr 01, 2008

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Amp light not working and one dead right channel


Without knowing how it's actually laid out, I'd surmise the output amplifier transistors in the right channel are shorted, the fuse for that channel may be blown, and the speaker protection circuit is keeping it turned off. Most amplifier speaker protectors disable both channels if there is a problem, but yours could be different. I surmise the lights you mention are directly connected to the speaker protector chips and indicate readiness for normal operation. If it takes a few seconds for them to come on after power-up, that lends credence to my hypothesis.
Unplug the amplifier, open it up, and measure the resistance from the right channel output to each of the output power supplies (or to the fuse for the output power supply for that channel, if present). If one or both is very low (i. e, close to zero), you have a fried transistor. If that is the case, it is probably a good idea to replace the complementary transistor connecting the speaker to the other power supply even if it tests good; it may have been overloaded when the first one shorted. In many amplifiers, the transistors are inside a hybrid amplifier module, so you would have to replace the entire module. In some amps, you have multiple transistors in parallel; here you can probably keep the transistors that were in parallel with the failed unit, but I'd still recommend changing the complementary transistors.

Apr 23, 2014 | Volfenhag ZX-5168 2-Channel 4000W...

2 Answers

Stage 100 blowing fuse,loud hum


Hi,If your blowing fuses then the problem is most likely to be faulty bridge rectifier or darlington output transistors.All readily available and not too expensive.Circuit diagram on Fender site or net easily found.Thanks Fender good customer service.

Oct 16, 2013 | HHB Radius 50 Tube Amplifier

2 Answers

My Harmon kardon is stuck in protect mode


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Double check all connections .A thumbs up would be greatly appreciated if this answer is helpful to you. Worth fixing.

Nov 19, 2011 | Harman Kardon Amplifiers & Preamps

1 Answer

No sound at all. Power is on and all lights light up, but so sound output regardless of speaker selected or input.


I do not have experience with this particular amp. Generic trouble shooting follows:

Might it be that you have headphones plugged in? (Unplug them, they turn off the speaker output) You are absolutely certain of the settings on your amp? (check them again) Are you certain you have an input? (AM, FM, CD, AUX, other) (Make sure the input is turned ON and the source is properly selected.

Is the output protected by a fuse or fuses? (look on the back panel for fuses or fuse holder)

Everything that is suppose to be plugged in IS plugged in ... all cables are intact? Did you check them for contunity? You can check contunity with a flashlight battery, the light of a flashlight and a paper clip.

Speaker selection switches are pressed as appropriate. Speakers are connected to the appropriate outputs and they are ON. Speakers are of proper rating - and resistance? 4 ohm - 8 ohm - 16 ohm??? Any controls on the speaker are set at a neutral setting?

I'm sorry your device is not functioning as you think it should. These things are designed to work and generally, they are pretty good at it. Sometimes, they just break (stop functioning) It may be that you will have to take it back from where you got it for repair or adjustment. But I am hoping you have the headphones plugged in.

Thanks for your interest in FixYa.com

Dec 26, 2009 | Yamaha DSP-A1000 5-Channel Amplifier

2 Answers

Marathon 2000 amp... PROT light


Ok this means the AMP is in protection mode!..most likely the cause is a short in your wireing from the speaker wires! check all wires going in and out of amp! Look for stray wires touching metal or other contacts! (If this does not fix it the short may be inside of amp!
(This has nothing to do with a fuse!)
Please rate this FREE response!
THANK YOU!

Jan 19, 2009 | Marathon DJ-2000 Amplifier

1 Answer

Powers on but no sound


These are not available electronically as far as I know. Also, there are a number of variants of this receiver based upon its serial number. Can you post the serial number here please? Also, are there any other symptoms at all or just no output? Look inside to see if your unit has relays for the speakers. If it does not, look for speaker fuses and be sure that they are not blown. Once I get the serial number, I'll try to provide you with additional details.

Dan

Dec 30, 2008 | Amplifiers & Preamps

1 Answer

Optronica amp one channel out.


disconnect any input cable and test-----------if you still have a problem connect your right speakers cables(which supposed to be good)instead of left speakers cable and test------ if the problem solved you will have a problem in left side(cables or speaker)-------if not solved you will have a problem in your amp it self. and needs hardware repair.

Jul 31, 2008 | Amplifiers & Preamps

1 Answer

Peavey xxx stopped working during a show


Hi lespaul 2001

Have you checked your HT fuse. If it fails it will have lights but no sound. Pays to check fuses with a multimeter, as they sometimes look good, but can be dud.

A faulty or intermittent lead speaker box lead will aldo make the head blow fusesCheck the lead to your speaker box also. Dont use a stomp box patch lead. be sure to use a decent speaker lead with quality jacks(switch craft) and at least 16 gauge cable. Ernie Ball make a decent speaker lead for guitar rigs.

If the head keeps blowing fuses, I would suggest that you change you output tubes(4 x 6L6GC). I recommend Electro Harmonix, by Sovtek as a budget conscious option. Get them as a gain matched quartet.

If it does not have a blown fuse at all... then get back to me here and we can do some more tests.


I am more than happy to answer any other questions you may have about it, just give me a hoy :) If you are still unsure, or have problems, then before you give a rating for this advice, please get back to me and we can try some more things.
Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek

Jun 16, 2008 | Amplifiers & Preamps

1 Answer

Adcom GFA 7000


your output transistor, IC( integrated circuit), tubes. around the output side of the amplifier.

try to switch on the amplifier without the speakers. also the wire connecting the speakers, if the fuse blow without the speakers its inside your ampilfier. if not its your speaker. hope I helped you with this. don't hesitate to reply. ^.^

Jan 21, 2008 | Amplifiers & Preamps

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