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spaz1980 21st September 2009 09:52 AM

kicker zx100.2
Thaks for god anser the last time i help whit a problem!!!
Now i have kicker zx100.2 that worn´t shot off.
r1 (100ohm) was burnd. c10 and c19 was svolen. I have change the components. But it is just on. I do not nead remote.
Power 12v to the tl494cn.

Perry Babin 21st September 2009 11:47 AM

If no one else can help, post at least one photo of the inside of the amplifier showing the components around the TL494.

spaz1980 21st September 2009 11:56 AM

1 Attachment(s)
Her is a pic on it

Perry Babin 21st September 2009 01:46 PM

Follow the trace back from pin 12. Does it go to the center leg of a transistor (possibly an A1266, or an A1023)?

If no and it's tied to pins 8 and 11 and is also connected to the 100 ohm resistor, does the other end of the resistor go to the center leg of a transistor?

spaz1980 21st September 2009 02:54 PM

1 Attachment(s)
leg 8 and 11 gos to a transistor (2n4401) and then to the medel leg on irfz46n.

I have fil in the pic.

Perry Babin 21st September 2009 04:54 PM

1 Attachment(s)
Post the DC voltage on the pins of the two circled transistors. Place the black meter probe on chassis ground. Place the red meter probe on the point where you need to measure the voltage. No remote voltage applied.

Pin 1:
Pin 2:
Pin 3:

Pin 1:
Pin 2:
Pin 3:

Is the one circled in yellow a 1N4003?

spaz1980 21st September 2009 05:33 PM

input 13,22v

pin 1 13,19v going to 12v
pin 2 12,47v
pin 3 13,00v

pin 1 0v ground
pin 2 0v going to a diode and then tru a diode and resistor to remote
pin 3 3,7v to a resistor and then to pin 2 on yellow

spaz1980 21st September 2009 05:46 PM

yellow "mps a56"
orange "2n4481"

Perry Babin 21st September 2009 06:21 PM

It appears that the orange transistor is defective. Pull it and the amp should not power up. After pulling it, the voltage on pin 2 of the a56 should be the same as the voltage on pin 1. The voltage on pin 3 should essentially be 0v.

Are you sure that the orange one isn't a 2N4401?

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