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Old 11th February 2019, 08:05 PM   #11
chrisg4 is offline chrisg4  South Africa
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1. Yes
2. Yes
3. Not sure, removed remote when it smoked
4. No, no outputs were installed when I replaced it.
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Old 11th February 2019, 08:25 PM   #12
Perry Babin is offline Perry Babin  United States
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Both large 1 ohm resistors serve the same purpose and connect to identical circuits. Why did only one smoke?
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Old 12th February 2019, 05:55 AM   #13
chrisg4 is offline chrisg4  South Africa
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i think i may have damaged the HIP4080, i discovered a small solder bridge on one of the other banks
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Old 12th February 2019, 06:01 AM   #14
Perry Babin is offline Perry Babin  United States
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Did you try the old and the replacement to see if either worked (no outputs)?
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Old 12th February 2019, 06:36 AM   #15
chrisg4 is offline chrisg4  South Africa
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yes i did swap them, the old hip4080 gets really hot
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Old 12th February 2019, 06:37 AM   #16
chrisg4 is offline chrisg4  South Africa
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it could have been the hip4080 that smoked
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Old 12th February 2019, 09:40 AM   #17
chrisg4 is offline chrisg4  South Africa
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resistor values:

Click the image to open in full size.
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Old 13th February 2019, 04:56 AM   #18
chrisg4 is offline chrisg4  South Africa
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replaced the resistors, how do i avoid damaging another hip4080?
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Old 17th February 2019, 06:25 PM   #19
Perry Babin is offline Perry Babin  United States
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They are fragile. The best you can do is to check all connected components and make sure that you don't have any solder bridges.

If this amp powers the 4080 through a regulator, make sure that the output voltage is pretty close to 12v.
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Old 18th February 2019, 12:59 PM   #20
chrisg4 is offline chrisg4  South Africa
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I replaced the hip4080

i do get drive waves on all banks, two banks have good waves but the other two are very small
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