Probably already assumed, but when it does go into protect mode, I can hear the transformer click off. im only asking cause i have sean some people that have run speaker wire as there ground. Sub works fine when the left input cable is plugged in but as soon as I plug the right one it switches into protection mode. 4) Check the grounding is solid. Don't let the amp touch the screws used to moun the wood board and don't use screws so long to mount the amp that they go through the board and touch the vehicle. If you read more than 0.01v and the amp is at idle, you may have a bad ground. But my amp keeps going into protection mode when my right rca input cable is plugged in. You need to power up the amplifier and measure the voltage on the shields (shiny outer metal ring) of the RCA jacks. Hey, I had my amp working for a few minutes with all the gain and everything set to low. Sometimes it switches the red LED off and switches the green on (Planet Audio, Power Acoustik and similar amps). In most of the budget amplifiers, the shield will be directly connected to the NON-bridging speaker terminals. Problem: Amplifier goes into protect. Hello, Here's my dilemma. Anyways, I've been having some trouble hooking this thing up. Knowing the possible problems that a protect light indicates is essential. Sounds like a short. Sometimes the voltage will only drop when current is being drawn from the power source. after the radio is turned on. Watch as Allyn goes through some troubleshooting processes that you can try when your amplifier isn't functioning properly. If that's the case, the amplifier will need to be repaired. Now it wont work and keeps turning on and going to protection mode. I have a Pioneer GM-D8701 mono amp that's going into protect mode after about 10-15 minutes of low to medium volume play, ... aftermarket stereo amp and sub in my 1999 ford f150 so how can I run the wires without a wiring harness and how are the rca Jack's ran to a 4 channel amp? Foreword: I have a pioneer gm-5500t I checked all the wires and connections and made sure I had a clean ground. If the power light blinks then goes off, the amp is either going into protect mode or there is a bad connection in the power supply wiring. If it doesn't go into protect, reconnect one pair of speaker wires at a time. Then I disconnected the RCA cables and the amp turns on. For The Car Audio and Video enthusiast! Noob here and first timer poster, so any help is great! The amp started to go into protection as i was setting the gains,i thought maybe the amp was detecting clipping that i could not hear so i decided to turn the gains down a bit. This happens when the voltage drops too low when the amp is being driven hard with an insufficient power supply. Please refer to the links below for basic starting information. Clues to a Bad Connection: If the amp goes into protect with no RCA or speaker cables connected to it or if the amplifier blows the fuse AFTER remote voltage is applied, the amplifier likely has shorted output transistors. New comments cannot be posted and votes cannot be cast. for some reason my fosgate 1500bd amp keeps going into protect mode like 5 secs. Q&A, Advice, Tips, tricks and tech welcome! If that red light comes on, stay calm, power off your amp, and check your speaker connections and impedance ratings, making any necessary adjustments. Generally, the power light is green or blue and the protect light is red but on some amps, the protect light is green and the power light is … and it was a bad ground at the amp. Sometimes it's a single LED that changes color (PPI). Many amplifiers show protect when initially powered up (mute delay) and then switch to green. I had a buddy let me barrow a working amp, and I ended up hooking that up, everything worked fine. You first need to check the RCA shields of the head unit. Sometimes it will make it through a whole song without doing it, sometimes it stays in protect for the majority of a song. Bachelor's Degree. One minute it's working and the next minute it's not, usually with the green power LED on the amp turning to red or orange. Some simply shut down and the power light will not illuminate when in protect mode. Hey guys, I've done everything recommended by you fine folks and I'm still having issues. When there is a fault, the LED changes from green to amber. Username: Gunit334 Slidell, Louisiana United States Post Number: 2 Registered: Aug-06: Posted on Saturday, August 05, 2006 - 04:53 GMT . Using the demo should help you to better understand where you'd lose voltage when there is a break in the circuit. It is a much more powerful amp than the sub, the amp is 850w rms while the sub has a tolerance of 600w I thought setting the gain all the way down would allow it to be used with it. Above, I purposely recommend placing the black probe of the meter on the ground terminal of the amp. I have checked the speaker wires in the back of the receiver and they are not touching each other or corroded. The input op-amp is generally very near the RCA jacks like THIS. If the shield ground of the head unit is OK, the amplifier could have one of several problems. The first thing you need to check is the on-board fuses plugged into the amplifier (if it has them). In MANY amplifiers, the power LED will be lit but the amplifier will be completely dead internally. If you find that the B+ or remote voltage is low at the amplifier, you need to trace the voltage back to the source to determine where the voltage is dropping. It's important that you disconnect the speaker wires from the speaker terminals of the amplifier and disconnect all RCA cables from the RCA jacks of the amplifier. If the amplifier goes into protect with the RCAs plugged in (but all speaker wires disconnected), there could be several problems. Once I was finish connecting my wires the amp went into protect mode with the red light. For the most part, this page is for amplifiers that go into protect mode and remain in protect mode or go into protect mode when the amplifier is driven hard. If the amp only shuts down when the amplifier tries to produce high power (when it hits a strong note), you need to measure the voltage at the time when the amp shuts down. You did not tell us if you got out of the protect mode or if you need help with that. My fuse running from the battery power wire blew today so I had it replaced. Since the meter leads are not long enough to reach the grounds at the battery or trunk over the long run of the power wire, you need to scratch the paint/primer/undercoat to bare metal at each point where you need to check the voltage. At each connection, fuse or other point where the wire is not continuous, check the voltage. If you have that connection, the shield ground connection is intact. Bad Ground? If there's a question, pull the fuse from the holder and measure the resistance across it (set meter to ohms). 2 thoughts on “Sony receiver in protector mode FIXED!” Paul. If you read over 0.1v, you definitely have a bad ground. I tried regrounding it and everything. I took all the speakers off and the amp worked, it didnt go into protection mode. Amp going into protection mode only when right rca is plugged in. If there is a problem youll see a dead short between the leads. The model # is XM 554ZR. This is especially true when the power supply has failed. If you place it on a chassis ground point in the vehicle and there is a bad connection between the amplifier ground terminal and the chassis ground, it will appear that the amplifier has sufficient voltage at the B+ and remote terminals (assuming that the feeds to those are intact). Could my ground wire be an issue? Update (02/17/2018) @flamini try this: Unplug the receiver's power cord from the wall and leave unplugged for at least one hour. If you know how your amplifier behaves when the amp is in good working order, it will make troubleshooting much easier. The second LED will light when the amp goes into protection mode. Otherwise, it's likely that the output transistors failed. The amp then worked for for some periods before shutting off. I'm not to well versed in large power amps like these but I have some background knowledge from my ece classes. Normally, both will be above 12v. I was driving to dinner last night and all of a sudden my amp (DLS A4) shut off. Then I disconnected the RCA cables and the amp turns on. This means that they can no longer function properly and will continue to overheat. Amp goes into protect mode when i hook up RCAs . - Testing the voltage on the remote wire to make sure it is strong enough to turn the amp on - normal (14.4V) - Making sure that the power cables are … The BX250 and many other amplifiers use the same solid red light to indicate both that the signal is muted and that the amp is in protection mode. amp goes into protect mode when rca, If the amp goes into protect with the RCA cables plugged in, go to step 4. It is definitely an internal amp problem. Amp is still going into protect mode. I removed the speaker wire to see if its the speakers and its not the light still shows red. Feb 24, 2006 7,549 53 91. Or if its something much harder to fix. Fuses - Open But Not 'Blown': The one on the right is OK. B+ and Remote Voltage: If your amp has a “protect” light, and it’s on, then chances are good that you have a faulty speaker, subwoofer, cable or another component. Amplifiers are often designed to go into “protect mode” to avoid further damage to internal components. For those who don't know what a blown fuse looks like, the one on the left below is blown. However, when I only connect the left speaker, the receiver goes in protection mode right away when a peak of high volume is sent out by the receiver. The resistance across fuses rated more than a few amps will be essentially 0 ohms. The protect light on an amp is there to keep the amp safe when something goes wrong. Important! power my subs will make popping noises and the amp goes into protect. In audio, when an amp or speaker is damaged, it's often referred to as 'blown up', 'puked', 'launched', 'toasted', or some other description. In this particular amp, the damage was so bad that the block melted the solder and pulled out of the board. Once I had a chance to check, I found that the amp was going into protect mode. First, you’ll want to check for power, as outlined in the “if your amp doesn’t power on at all section,” just to cover your bases. For those amplifiers this is normal. my amp was the same way. Username: Remember Me? 2. All these wires are fully connected and I have no problems with this. You will also see defective fuse holders. It's helpful to know how the amplifier behaves when working properly. Im going to open it today to see if it could be a simple fix, maybe a burned out cap, or resistor. The amp started to go into protection as i was setting the gains,i thought maybe the amp was detecting clipping that i could not hear so i decided to turn the gains down a bit. Is n't functioning properly, MECP Advanced - 4 S2508s @ 1 on! Timer poster, so any help is great plugged into the amplifier may a... 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