Polk Audio Recent Questions, Troubleshooting Help & Support

what model?

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/

here you can find all about http://www.polkaudio.com/Media/POLK/Product%20Manuals/IHT3000MN_ENG.pdf 19. Replacement Parts. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that the parts have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards. CAUTION: Danger of EXPLOSION if battery is incorrectly replaced. Repalce only with the same or equivalent type. (CR2032)

Humming noise on your sound is not due to your speaker but it is come from the amplifier. I've encountered a lot of this problem that is caused by the electrolytic capacitor. If you are a technician first locate for a dry joints on the board and then resolder it using your soldering iron and a high quality soldering lead. Resolder not only the capacitor but also around the output I.C.
If nothing happen then it is coming from your output I.C. sometimes it was leaky/shorted which produces a humming noise but first do the the above mentioned instructions before isolating the defective output i.c.

Not generally. Another reason to stay away from 10. Manufacturers not obligated to provide - rather sell you new equipment.

this may be a dumb question but have you turned up the signal. there should be a dial on the back that you can turn the power up. power light on, signal passing threw, the only other thing it can be is the built in amp itself may be dead.

The fuse may be located in several spots:

- fuse inside the three prong power plug connector on the sub (if there is one) - see if it has a fuse compartment built in - it should slide out kind of like a small drawer - sometimes it has also a separate place for a spare plug in there - the fuses used are of glass type.

- fuse mounted into a fuse holder soldered onto the circuit board - glass type fuse

- fuse soldered directly onto the circuit board - sometimes the type used is glass (it may have a heatshrink tube around it so it doesn't look like a fuse at a first glance, also there are other types of fuses that can be soldered directly onto the board - these are in the form of a small vertical cylinder, usually of a dark reddish colour with white / yellow print on the top - they look somewhat alike to small electrolytic capacitors, but are encased in dark red plastic with the pins located directly underneath the fuse.

Hope you can find it...

regards

3rq8 (Triarcuate)

I have the same issue. It started after the phase switch (0 degree or 180 degrees) broke. Light is green but no sound.

Try switching the speakers left to right. If the same speaker is bad on both channels, the speaker is bad. If the good speaker is now bad, the unit driving the speakers is bad.

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check your fuses and your wiring

make sure your speaker is mounted correctly and not loose

sq nearest expert radioinstaller I'm sure he will know the answer and have the replacement part you need

it could be the connection or your speakers could be ripped check your connection and make sure your wires are securely connected speaker is torn or ripped replace it

carefully prize of front cover

check the diodes,for voltage stages.the unit may be getting power surges do to open(faulty) diodes