Question about Denon Audio Players & Recorders
The amp heats up considerably on one stage, too hot to touch; and then shuts down (protection I assume). It appears it will need professional repair.
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SOURCE: Denon Power AMPLIFIER
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Posted on Dec 16, 2007
After thorough cleaning of the speaker leads, PC Boards etc, I desoldered all the leads of the main two power transistors of the Left channel that had given problem earlier. Switched on the amp and bingo, it did not go in protection mode which confirmed that the two power transitors were the culprit. After checking the voltages and values of some other vital componenets vis-a-vis remaining left channels, it was confirmed that the circuitry was okay. The power transistors were checked again and found to be okay as well. I then took a chance and resoldered not only these two Left channel power trnasitors but also resoldered all the leads of all the other power transistors as well.
The amp was switched on again and this time also it did not go into protection mode. The amp is working fine. Problem could be either dry solder or short of power transistor leads by stray solder waste strand. There was no need to change any part which was great.
Thanks for help anyway.
Posted on Nov 30, 2008
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