My amp has power. the green power light is on, but there is no sound coming out of the speakers. the speakers are good. i hooked them up to the amp in my truck and they work great. i checked the outputs with a voltemeter with the stereo on, and i didn't get a reading. can anybody help?
An expert who has achieved level 3 by getting 1000 points
Superstar:
An expert that got 20 achievements.
All-Star:
An expert that got 10 achievements.
MVP:
An expert that got 5 achievements.
Master
12,061 Answers
Re: no sound coming out
I often troubleshoot these issues via a stereo head set, modify the leads so you can "Touch" them onto the Speakers Output Terminals, connect the "Shields" together, thats "Earth" and the other Two, are Left & Right... with the Amp's volume turned to about 25% volume, connect up the Earth wires to the Chassis with a clip, under a srew etc, just make good contact... then touch the Left & right wires onto the output, ya should hear sound... if not most probably the Output device(s) may have gone faulty.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
1000W system is enough power to blast your neighborhood. If the + and - connections are correct the speaker balance is connected properly. I assume you have checked the speakers and they have been working fine.
Thus, the problem is internal, within the amp. Make certain that you have selected the proper sound out to the speakers. With the speakers attached, keep switching around from one sound path to the other. Make certain, your source (input to the amp) is proper and the signal is communicating with the amp. If the amp has direct out ports to L/R Center and Surround that you can use wires to connect to the speakers, try that method.
Sounds like you have an ohm problem, Tryy hooking the positive from one speaker to the negative on the other speaker. Then hook the negative from the first speaker to the negative on your amp and the positive from the second to the positive on the amp this will drop your ohm load and the amp should stop going into protection.
For the visonik, you should check your speakers. You can use a D-cell battery. Remove the speaker wires from the amp and connect each speaker across the battery (for no longer than a few seconds). The speaker should pop each time the wires are touched to the battery. If they don't, the speaker is defective (assuming the battery isn't dead).
If the speakers are OK, you need to confirm that you have a good signal feeding the amp. You can use the RCA cables from another working amp in the vehicle. Do this with the amp that had the power light lit.
If you have signal going to the amp and the speakers are OK, the only two things left are the power supply feeding the amp (from the battery) and the amp. If you have B+ and remote voltage AND a good ground, the amp is defective.
For the pyramid, the amplifier probably has shorted output transistors. The amplifier will have to be repaired.
Sony generally drives their power light from a source that does not rely on the amplifier's switching power supply. This means that it's not a good indicator as to the health of the amplifier.
As long as you have B+ and remote voltage, it will light up. Since you've tested the speaker and the signal source, I think the amplifier is likely defective.
Yellow - +12V Constant Power
Red - +12V Switched (accessory) Power
Blue - Power Antenna
Blue/White - Amp Turn-on
White - Left Front Positive Speaker Wire (LF+)
White/Black - (LF-)
Gray - Right Front Positive Speaker Wire (RF+)
Gray/Black - (RF-)
Green - Right Rear Positive Speaker Wire (RR+)
Green/Black - (RR-)
Purple - Left Rear Positive Speaker Wire (LR+)
Purple/Black - (LR-)
it sounds like you pop the power Reg. transistor or one of the Amp. chips instide. Some Amps has a pic fuse inside on the main board its green very small shape like a tear drop with a wire comeing out both ends it would in a socket some times white or black.
×