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Old 8th August 2009, 08:35 AM   #1
diyAudio Member
Join Date: Aug 2009
Default kicker 352xi resistor

Have a kicker 352xi that is dead have change the irfz44 and the capatasators in the proses i burnd r15 and canīt see the value. Pleas help me.
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Old 8th August 2009, 12:32 PM   #2
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Join Date: Mar 2007
What components does the resistor connect to? If it connects to the left leg of one of the Z44s, it will be the same value as the one connected to the other Z44.
If it ain't broke Don't fix it
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Old 9th August 2009, 09:12 AM   #3
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Join Date: Aug 2009

It is connecket to tl494cn (u01) on leg 8,12 and 11 and a transistor
The ic donīt get any power to start. The resistor is to the signal fron the radio.
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Old 9th August 2009, 10:00 AM   #4
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Join Date: Nov 2003
Location: Louisiana
In many of the older kicker amps, they use an NPN transistor to drive a PNP transistor. The PNP transistor delivered B+ to those pins of the IC via a resistor (between 33 and 100 ohms).

The PNP transistor (possibly a 2SA1023) would have the pin configuration of ECB (Emitter, Collector, Base). The transistor would have B+ voltage on the emitter. The base would be driven towards ground when remote voltage was applied. The collector would deliver voltage to the resistor when the base was driven towards ground.

If you need a sub for the PNP transistor, a BD140 should work.

I'd probably use a 33 ohm resistor unless you can confirm the value of the original. The ones that used the 100 ohm resistor generally had a zener diode connected from the resistor (also pins 8 and 11) to chassis ground.
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Old 9th August 2009, 06:09 PM   #5
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thacks for the quick anser. I vill try to hange it to a 33ohm.
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