Hifonics Titan TX1505D . Missing IC - Page 2

Perry Babin · 29th January 2011, 02:26 AM

Those are 1N4148s.

The hifonics amps generally use the ZD designation for Zeners.

The diodes rarely fail.

The gate resistors for the outputs are 100 ohms.

spooney · 29th January 2011, 04:34 AM

I see. Thinking is a little off tonight. Right part number but they aren't zeners. Are there only four gate resistors and four 4148's for the 8 output fets?

spooney · 29th January 2011, 04:37 AM

Also wondering if my hip4080 is defective will it destroy the new outputs when I try to power the amp on?

Perry Babin · 05:11 AM

If the outputs failed, you should assume that the 4080 is defective and replace it. Yes, it's possible that a defective 4080 could blow the new outputs.

There are 4 drive circuits from the 4080. Each pair of outputs is driven by one of the circuits. Each circuit has a single diode and gate resistor. There are other diodes and 470k resistors but those are part of the pull-down circuit.

spooney · 29th January 2011, 07:59 AM

Tonight I soldered in the IRF3710Z's . To be on the safe side I also replaced the 1N4148's and gate resistors near the outputs. I decided to give the HIP4080 I originally put in a shot and powered the amp up. It powered up normally without excessive current draw. The power light is green instead of red this time

. The output relay clicked on as it should and the amp idled fine with no issues. It's late so I couldn't run it very loudly but I verified both with a speaker and with an oscilloscope that the amp is now producing clean audio. Hopefully tomorrow I can get her all buttoned back up and put it in the car to give her a real test run.

AndreyK · 15th November 2011, 11:26 PM

Hope the problem have been solved. But I have one more question about the ZD1: if I have only 3.83V there should I change it? Also there are about 4.1V on pin 6 and almost zero on pin 7. All these voltages were measured without the HIP (and it is probably dead). A couple of outputs were blown, so now I only use 4 of them for tests (IRF3710). The amp is almost the same, bxi1608. Do anybody have ideas about what to do first?

Perry Babin · 15th November 2011, 11:41 PM

Move or copy this to a new thread and I'll try to help.

AndreyK · 16th November 2011, 07:53 AM

Blown HIFONICS BXi-1600D (HIP4080AIPZ inside)
Here it is, but nobody else could help..

Perry Babin · 16th November 2011, 08:30 AM

Move or copy this to a new thread in the car audio forum and I'll try to help.

brandes.cm · 16th November 2011, 01:39 PM

I started a new thread from the original, cut and paste.

29th January 2011, 02:26 AM	#11
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Those are 1N4148s. The hifonics amps generally use the ZD designation for Zeners. The diodes rarely fail. The gate resistors for the outputs are 100 ohms. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

29th January 2011, 05:09 AM	#14
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	If the outputs failed, you should assume that the 4080 is defective and replace it. Yes, it's possible that a defective 4080 could blow the new outputs. There are 4 drive circuits from the 4080. Each pair of outputs is driven by one of the circuits. Each circuit has a single diode and gate resistor. There are other diodes and 470k resistors but those are part of the pull-down circuit. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links Last edited by Perry Babin; 29th January 2011 at 05:11 AM.

15th November 2011, 11:41 PM	#17
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Move or copy this to a new thread and I'll try to help. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

16th November 2011, 08:30 AM	#19
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Move or copy this to a new thread in the car audio forum and I'll try to help. __________________ 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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29th January 2011, 04:34 AM	#12
spooney diyAudio Member Join Date: Dec 2006	I see. Thinking is a little off tonight. Right part number but they aren't zeners. Are there only four gate resistors and four 4148's for the 8 output fets?

29th January 2011, 04:37 AM	#13
spooney diyAudio Member Join Date: Dec 2006	Also wondering if my hip4080 is defective will it destroy the new outputs when I try to power the amp on?

29th January 2011, 07:59 AM	#15
spooney diyAudio Member Join Date: Dec 2006	Tonight I soldered in the IRF3710Z's . To be on the safe side I also replaced the 1N4148's and gate resistors near the outputs. I decided to give the HIP4080 I originally put in a shot and powered the amp up. It powered up normally without excessive current draw. The power light is green instead of red this time . The output relay clicked on as it should and the amp idled fine with no issues. It's late so I couldn't run it very loudly but I verified both with a speaker and with an oscilloscope that the amp is now producing clean audio. Hopefully tomorrow I can get her all buttoned back up and put it in the car to give her a real test run.

15th November 2011, 11:26 PM	#16
AndreyK diyAudio Member Join Date: Oct 2011 Location: Estonia	Hope the problem have been solved. But I have one more question about the ZD1: if I have only 3.83V there should I change it? Also there are about 4.1V on pin 6 and almost zero on pin 7. All these voltages were measured without the HIP (and it is probably dead). A couple of outputs were blown, so now I only use 4 of them for tests (IRF3710). The amp is almost the same, bxi1608. Do anybody have ideas about what to do first?

16th November 2011, 07:53 AM	#18
AndreyK diyAudio Member Join Date: Oct 2011 Location: Estonia	Blown HIFONICS BXi-1600D (HIP4080AIPZ inside) Here it is, but nobody else could help..

16th November 2011, 01:39 PM	#20
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	I started a new thread from the original, cut and paste.

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