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Old 23rd November 2012, 06:11 AM   #1
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Default JL Audio 1000/1

Does anyone know the value of R842 ??

It sits beside the small yellow transformer
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Old 23rd November 2012, 07:22 AM   #2
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The large resistor next to the large 33 ohm resistor is 0.1 ohms.
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Old 23rd November 2012, 07:24 AM   #3
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Is the SMD resistor that sits next to C837 and C839 also a 0.1 ohm ?
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Old 23rd November 2012, 07:28 AM   #4
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This one?

47 ohms.
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Old 23rd November 2012, 07:49 AM   #5
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Replaced both of the resistors As soon as i power it up both resistors burn within 2 secs
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Old 24th November 2012, 05:38 PM   #6
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Would you happen to know what should check next since both thoose resistors i jus put in burn up within 2 secs
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Old 24th November 2012, 05:44 PM   #7
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The only thing connected to both of those resistors is the transistor standing on the board right next to the resistors.
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Old 24th November 2012, 05:48 PM   #8
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Yeah thats it its shorted from Legs 1-3

Is there anything i can use for a sub so i can est somemore ??

Orginal is a FQP30N60L
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Old 24th November 2012, 07:26 PM   #9
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30N06L, not 30N60L.

This is a 'logic level' FET. The drive circuit doesn't have enough voltage to properly drive a standard FET. You may be able to use something like a 3205 for testing to see if there are other problems but you'll need to get the proper transistor for long term use.
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Old 28th November 2012, 06:08 AM   #10
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Ok i orderd the Correct transistor.. (FQP30N06L)

The 47 ohm resistor connected to Leg 1 of that transistor both of the pads burnt off the board...

Instead of an SMD resistor going back in that location I was gonna use a leaded resistor to i can solder right to leg 1 and the other side i can drill a small hole thru the board and solder it from the under side of the board..

Would a 1/4 watt 47 ohm resistor work or should i use a 1/2 watt ?

Also the 0.1 ohm resistor is a 2 watt ??

3rd question is With the FQP30N06L , 0.1 ohm and the 47 ohm resistor all being bad would that cause the low ohms light ?
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