Question about SPL Dynamics XL2-1600 Car Audio Amplifier

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Questions about driver board

Hello,
i would like to know what type of IC are used on the driver board (2 pices with 8 pins each, smd). it seems that the same driver board its used in the following amplifiers: µ-Dimension ProX 2K 1D,American Bass VFL 150.1, Emphaser EA1600,Hifonics Brutus BX2200D,Starsound SSA-D6000.
waiting on your answer! thank you! br, luca pop

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Are the ICs covered in epoxy? All of the ones I've seen were covered and not replacable.

On other 3S-tech boards, they use a TL072 and an LM211. These rarely fail. The problem with these boards is generally blown driver transistors or bad connections on the driver transistors and/or resistors near the driver transistors.

Let me know if you have any other questions.

Posted on Aug 16, 2008

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1 Answer

Amp is blowing inline fuse everytime i connect the pos.&neg. wires


Hi thetexster74,
Blowing of fuse indicated of shorted parts inline with the supply voltage. Most common shorted parts is the sound output IC which is mounted in the heatsink. If your handy with electronics, have knowledge in soldering and desoldering technique, pull-out this IC to the board and then try the unit. If the fuse does not blow this time, you must replace this IC and your unit will back to normal again.
Let me know if the symptoms still persist after you've done the above solution.
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Thanks for using Fixya.

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Power Acoustic A3000DB mono amp problems


Broken legs on the rectifiers or an intermittently shorted common mode inductor would be the likely suspects. The common-mode inductor is just to the right of the capacitors in the photo. Install a single 15 amp fuse in ONE of the 4 fuse holders (other 3 fuse holders empty) and power up the amp. Twist the inductor to see if the amp draws excessive current (which would blow the fuse) or to see if it sparks.

Let me know if you have any other questions.

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1 Answer

The amp not powering on


Post the voltage on all of the pins for the ka7500 driver IC. Look up the datasheet for the TL494 (link below) if you don't know the pin numbering scheme.

http://www.onsemi.com/pub_link/Collateral/TL494-D.PDF

If you're new to repair work, read the following page (pay special attention to the information in the yellow box).

http://www.bcae1.com/repairbasicsforbcae1/repairbasics.htm

KA7500
Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:


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1 Answer

When I turn on the car all 8 transisters (#IRF3205) on the 12V side of the amp blow up is their a short in side the amp?


If the power supply transistors blew out, it's possible that the output transistors have failed (shorted).

If you're going to try to repair it, there are likely 2 blown driver transistors near the driver IC (TL494). You must check them. If they're blown, the new 3205s will blow out again.

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How to code radio for suzuki ignis


press the disp button and hold for 2 seconds and then enter the code using the preset radio buttons 1 for position 1 and 2 for position 2 ect ect

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2 Answers

Wiring my subs to my alpine mrv-1000


did you read your instruction manual. does it says "it could be bridged to other amp"?. you can't make a bridge to amplifier that is not bridgeable. bridging an amp is a way which it is made through transistor type ampilfier by bridging more transistor inside and more voltage is required for bridging.
I don't know if we could do to an IC type amplifier. ask an experts about bridging IC types how to bridge maybe they know how.
and if you had an successful bridging, you may have a problem through your speakers, they may hit hard but you will experience some errors through your speakers and easy to worn.

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2 Answers

Can i fix it ?


If no one else offers any suggestions, remove the transistor. Set your multimeter to ohms. If the solder pad for the left-most leg of the transistor goes to the B+ terminal of the amp (possibly via a low value resistor) and the center leg goes to pins 8, 11 and/or 12 of the tl494/tl594, the transistor is likely a 2sb631 or a 2sb649. The transistor is used to switch power to the tlx94.

If there were more than 2 of the IRFZ44 transistors (the ones most commonly used by kicker) in the supply, you need to change all of them. It's very rare that any survive. When one goes, they all go.

Did you check the audio transistors to see if any had failed?

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1 Answer

Soundstream ribcom500


You can get the schematic from SoundStream. If you get the schematic and need help, email it to me at:
babin_perry@yahoo.com

If the amplifier does nothing, post the DC voltage on each of the pins of the SG3525 (or whatever IC they're using in the supply). Use this as a template:

Pin 1:
Pin 2:
Pin 3:
Pin 4:
Pin 5:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 10:
Pin 11:
Pin 12:
Pin 13:
Pin 14:
Pin 15:
Pin 16:

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2 Answers

Earthquake ph-d2


The PWM IC is an SG3525. Which IC are you calling the protection IC?

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