Question about Sony CMT-HP7 CD Shelf System
Ever since I moved into my new apartment, the stereo has been acting oddly. We use it for FM and CDs. When you first turn it on it works fine, although if you turn it up loud you can hear a faint crackling, mostly from the left speaker. The crackling is similar to what you hear when an FM station is faint, and the stereo band doesn't completely come through, except this happens when playing a CD as well.
After 5-10 minutes, the sound will start shutting off or 'cutting out' sporadically for 5-10 seconds at frequent and apparently random intervals. After 20 minutes, there is more silence than sound.
Sounds like an amplifer fault. Many of these Midi system use a large black IC attached to a metal heatsink. They control both the power amp and pre amp on both channels. When they go wrong they can cause all sorts of effects,
If you can repair things I would look at that. If not get ready for a large bill. If it's the IC some are expensive, it does most of the work!
Posted on Jan 30, 2009
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