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Another ir2184 base amp
Another ir2184 base amp
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Old 26th September 2017, 02:10 PM   #11
ian33 is offline ian33
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Am seeing the same signal previously posted on these pins
Should there be positive rail voltage going to the driver board?
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Old 26th September 2017, 06:06 PM   #12
Perry Babin is offline Perry Babin  United States
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Do you have a clean sine wave coming out of the preamp section?
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Old 6th November 2017, 02:33 AM   #13
ian33 is offline ian33
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I went back to this amp science i have two with the same driver board and similar problem.

I did not see a sine wave.I saw a square wave from the preamp section going to the driver board.
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Old 6th November 2017, 10:02 AM   #14
Perry Babin is offline Perry Babin  United States
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Turn the signal level down. Does that give you a sine wave?
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Old 6th November 2017, 01:16 PM   #15
ian33 is offline ian33
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Yes I see a sine Wave.
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Old 6th November 2017, 06:42 PM   #16
Perry Babin is offline Perry Babin  United States
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Answer qthe questions here:
Another ir2184 base amp
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Old 7th November 2017, 02:49 AM   #17
ian33 is offline ian33
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Thats the same amp.

Should i disable the ICs and connect the 10k ohm resistor and check for signal again?
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Old 7th November 2017, 01:40 PM   #18
ian33 is offline ian33
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I see signal on pin 1 of the 072.The bottom clips before the top if I increase the signal.I see a square wave on pin7 of U4.The scope does not lock on the signal but I can clearly see the square wave.on pin one of the driver ICs I see a square wave but they not identical with same scope setting.
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Old 12th November 2017, 07:17 PM   #19
ian33 is offline ian33
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Would that indicate the driver ICs have fail?
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Old 14th November 2017, 06:56 AM   #20
Perry Babin is offline Perry Babin  United States
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When checked as shown below, do you get very similar readings from all driver ICs?
Attached Images
File Type: png checkingir21844driverIC01.png (78.6 KB, 20 views)
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