kicker kx1200.1

timwebb · 02:07 AM

i just got this amp for a few bucks. the guy tried to have it repaired but that didnt happen. this is the worst i seen so far.also do anyone know what these two smd parts are?

Perry Babin · 18th January 2012, 03:22 AM

Which two (circuit board designations)?

timwebb · 18th January 2012, 03:23 AM

c152 and c170 on the sides of the resistor in the first picture

Perry Babin · 18th January 2012, 03:34 AM

They are ceramic capacitors. The value is likely 1uf but that's just an educated guess.

nonprof · 24th January 2012, 12:40 AM

Quote:

Originally Posted by Perry Babin

They are ceramic capacitors. The value is likely 1uf but that's just an educated guess.

Hi Perry!

Good Day! I have this kind of amp...do you have an idea why my amp has a hizzing sound? I replaced the L500 output inductor, do I have bad filter capacitors?

jeanious2011 · 24th January 2012, 01:59 AM

Quote:

Originally Posted by timwebb

i just got this amp for a few bucks. the guy tried to have it repaired but that didnt happen. this is the worst i seen so far.also do anyone know what these two smd parts are?

I think the problem is that someone added too much solder and now all the pins on the transistors are making connection.

timwebb · 24th January 2012, 02:08 AM

yea they messed it up bad. its done now. and playing

jeanious2011 · 24th January 2012, 02:20 AM

So give us a list of what you replaced and had done inorder for it to work.

timwebb · 24th January 2012, 02:38 AM

rebuilt the power supply replaced a few diodes near the drive transistors. and changed a few output drive transistors.
all i can say is mr perry is the man!

18th January 2012, 03:22 AM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Which two (circuit board designations)? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

18th January 2012, 03:34 AM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	They are ceramic capacitors. The value is likely 1uf but that's just an educated guess. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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18th January 2012, 03:23 AM	#3
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	c152 and c170 on the sides of the resistor in the first picture

24th January 2012, 02:20 AM	#8
jeanious2011 diyAudio Member Join Date: Nov 2010 Location: Texas	So give us a list of what you replaced and had done inorder for it to work.

24th January 2012, 02:38 AM	#9
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	rebuilt the power supply replaced a few diodes near the drive transistors. and changed a few output drive transistors. all i can say is mr perry is the man!

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