I bought a new Vintager GM110 via eBay about a year ago. When the amp is switched on and my guitar plugged in, there is no output noise either through the speaker or the headphone socket, though the On button glows red as usual. When I switch the amp off, there is about one second of amplified noise (such as a chosen guitar chord), then silence.
Has a component, such as the off/on switch, failed?
"marsupialman" wrote in message news: email@example.com...
To give you the short answer, probably not. This might sound like a harsh reply, but it's not meant in that fashion. In view of your obvious lack of electronic knowledge and troubleshooting ability, it would be much cheaper and quicker for you to take the amp to a qualified repair shop and pay the price for a competent repair.
You suspect the power switch when you should have immediately dismissed it because the ON light is on, as it should be. The fact that it does in fact produce sound at all indicated that the amp is being powered on. There is a malfunction somewhere else in the amp, most likely a bad tube. If you have access to a tube tester, then by all means, have the tubes checked. You could check your guitar and cord with another amp to make sure that they are working OK. Beyond those simple things, it's my opinion that for you to open this amp and attempt repair, you would risk further damage.
MasonDG44 at comcast dot net (Just substitute the appropriate characters in
Hi, I'm no regular here butt... I can tell you there are no tubes in this amp. It appears to have blown a major component which will involve pulling the chassis, searching a mass of tiny components and soldering. You can use the FX loop to test your output transistors. Plug another amp or even a CD player or radio, turned down way low, into the return jack. Report the result here.
So as the power internally reduces, the amplifier works? I'd suspect an over-voltage problem, which could be verified by applying reduced AC to the (assumedly) linear power supply in the amplifier (or does it have an external supply?). You'll likely require a technician to sort this one for you, unless it has a documented history/magic bullet for this problem.
Under that husky exterior rides the flimsiest of circuit boards, suspended on the plastic jacks and control pots, which barely survives the bus trip home. Components are known to drop off like leaves from the trees.
switch the >amp off, there is about
Take it to an electronics training school, or find an old ham radio guy with lots of patience and good eyesight. I once found a capacitor rolling around loose under the chassis of a similar beast, that made the repair job pretty easy. BTW, just plugging the guitar into the return jack of the FX loop should have made a sound if the problem was isolated in the preamp. Not likely.
hey. i have the same amp with the same amp with the same problem. i got it fixed but it broke again. i've had a lokk and i can't see where it was repaired. i do have some info if any one can decipher what it might mean;
1.there is power coming from the transformer
2.the speaker works
3.i cant see any thing missing inside
the only way to make noise is to turn it off and i get the fade-out. with different settings the fade-out is different so the amp models work.
Thanks! To be fair, I did a lot of research on amps like this before buying this one. Sound quality and versatility was obviously the big issues, but many users have been lugging this amp from club to club without anything going wrong. It's meant to be pretty tough. That's why I'm surprised it's busted.
Hi Marsupialman. Sorry to hear about your amp trouble! The advice John gives (above) is exactly what I would recommend: Send a known-good signal to the effects return. This will bypass all of the input/preamp electronics and present the signal straight to the output stage. If you still have no output using this test, I would expect to find a bad power IC or other failed component somewhere in the output stage.
If you are in need of an authorized repair center, just drop me a line or give me a call using my contact information below. I'll get you in touch with the nearest one and get you an estimate. We have over 40 service centers in the US. If you are not in the USA, we have service centers all over the world and I can assist you in choosing the best one for your needs.
One last thought: if the unit was purchased in the 12 months, you should have some remaining warranty coverage from the eBay seller.
Jim Savery Global Customer Service & Support Manager BEHRINGER Group Tel: +01-425-672-0816 x 111 Direct Dial: +01-425-939-3216 Fax: +01-425-673-7647 IP Phone Ext: 5024 mailto: firstname.lastname@example.org