Old sub blows fuses i think its cuz the power went out in the house 1 time, anyway i removed and replaced the sub with a new one but i didnt get much sound. could only hear the sub when my ear was up close to it. even turned up all the way. i thought it was the sub so i returned it and switched it. stil the same tho. how come all the other speakers work fine? i'm goin crazy here. is my yamaha also toast from the power outtage? time for a new one? i hope not. thanks for ur time.
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Re: minimal sound from subwoofer
MAKE SHURE YOU HAVE TOLD THE AMP YOU HAVE A SUB IN THE SET UP MENU UNDER SPEAKER SETTINGS.
IFF YOU ARE USEING SMALL SPEAKERS THEN SET THIS IN THE MENU AND OUT PUT BASS 2 SUB ONLY ,SET XOVER ON AMP IFF U CAN 2 120HTZ, ALSO CHECK THAT YOU HAVE THE SUB CABLE PLUGED INTO SUB OUT ON BACK OF YOUR AMP ,AND NOT THE 6 CHANNEL INPUT.
HOPE THIS HELPS.
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i have a jamo 250 sub.the blue light is working.when i connect the jack to the left line IN according to the manual it makes a sound as well.but seems not working.is it related to the fuse????i know the fuse box.but i dont know how to remove the fuse to check.pls help me out.my receiver is onkyo tx-sr 608
Try removing the wires to the subwoofer and then hook a "aa" battery to it and see if it makes a pop sound..this will tell you if speker is ok...if it is then I think the amplifier sectionj for the sub is what is blowing the fuses...you are probably right..it looks like it's a 1 A fuse...but if it's blowing right away..it may be circuitry related
I would first suggest un-hooking the subs, and hooking them up to another known good radio other than the one its hooked to now. Just to make sure you didnt blow the speakers. What is the wattage of the subs? Then if the speakers do work I would hook them up bypassing the amp just to see if the problem exist before or after. Come back after doing this. Thanks
I had the same problem. When I opened it up, the fuse was blown, and it was a pain to find the fuse it needs (3 Amp, 250 V slow-blow fuse, 5x20 mm). Also, the 2 large electrolytics (big purple things near the amp) and one small capacitor were all blown. For 4 fuses, bought seperately from, and the 2 electrolytics and 1 capacitor, it cost about $20, plus almost 20 more in shipping, which still isnt bad considering the original price of the sub. However, the tricky part is that you have to know how to use a soldering iron to take out the old components and put in the new ones.
there is an underlying cause for the fuse to blow. if something shorts out you would rather a 40 cent peice goes then the unit causing a fire. disassembly is require... look for obvious burnt parts first.
The fuse blows when the current that passes through it are beyond its rating. This could be brought about by excessive consumption of the load, in this case the amplifier powering the sub-woofer.
Repairs would involve component level and require that you be familiar with electronic components and circuitry, use of a DVM and a soldering iron. Often it is just the finals that needs to be replaced. Of course we cannot discount the possibility of other components or section such as the power supply.
The smoke indicates something heating up such as a resistor or diode or a capacitor.
Should you be uncomfortable opening the unit and doing a DIY (do-it-yourself), then perhaps you need to seek the services of a qualified professional.
Should the downtime and cost of repair be no longer economically reasonable, purchase of a new unit might save you further trouble.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.