Alpine MRP-M1000

mike49504 · 30th January 2011, 02:43 AM

I got this amp in for repair and it had 32 defective outs and a D600K .

I then noticed that ZD4901 is defective also. Its a HZK12A2L diode.

Wondering if anyone know if theres a diode i can put in that location for right now to troubleshoot the amp somemore before i order parts.

So wondering if theres a good diode i can sub for right now to troubleshoot somemore.

Perry Babin · 30th January 2011, 03:28 AM

It's a 12v. 1/2w Zener. A standard 1/2w (or greater) Zener could be used for testing.

mike49504 · 30th January 2011, 03:58 AM

Would a 1n4148 or 1n4150 work?

Perry Babin · 30th January 2011, 04:12 AM

Those are switching diodes, not Zener diodes. A 1N5242 or a 1N4742 would work.

mike49504 · 30th January 2011, 04:23 AM

Ok put a 1n4742a in the amp and it draws excessive current then it goes dead then draws excessive current.

When the amp does this all outputs heat up and D9902 gets hot .

Any ideas?

Perry Babin · 30th January 2011, 04:54 AM

The driver ICs may have failed also.

mike49504 · 30th January 2011, 09:51 PM

Does anyone know where i can get the driver ic's for this amp?

Allied electronics show 2 different 1's a 15 lead and a 16 lead .

I have the 16 lead 1 but they show no stock on that 1.

The parts number is IR2010S

Perry Babin · 30th January 2011, 09:57 PM

INTERNATIONAL RECTIFIER|IR2010SPBF|IC, MOSFET DRIVER, HIGH/LOW SIDE | Newark.com

The 15 pin description is likely a typo. Call or email them to confirm if you want to buy from allied.

30th January 2011, 02:43 AM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Alpine MRP-M1000 I got this amp in for repair and it had 32 defective outs and a D600K . I then noticed that ZD4901 is defective also. Its a HZK12A2L diode. Wondering if anyone know if theres a diode i can put in that location for right now to troubleshoot the amp somemore before i order parts. So wondering if theres a good diode i can sub for right now to troubleshoot somemore.

30th January 2011, 03:28 AM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	It's a 12v. 1/2w Zener. A standard 1/2w (or greater) Zener could be used for testing. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

30th January 2011, 04:12 AM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Those are switching diodes, not Zener diodes. A 1N5242 or a 1N4742 would work. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

30th January 2011, 04:54 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The driver ICs may have failed also. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

30th January 2011, 09:57 PM	#8
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	INTERNATIONAL RECTIFIER\|IR2010SPBF\|IC, MOSFET DRIVER, HIGH/LOW SIDE \| Newark.com The 15 pin description is likely a typo. Call or email them to confirm if you want to buy from allied. __________________ 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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30th January 2011, 03:58 AM	#3
mike49504 diyAudio Member Join Date: Sep 2006	Would a 1n4148 or 1n4150 work?

30th January 2011, 04:23 AM	#5
mike49504 diyAudio Member Join Date: Sep 2006	Ok put a 1n4742a in the amp and it draws excessive current then it goes dead then draws excessive current. When the amp does this all outputs heat up and D9902 gets hot . Any ideas?

30th January 2011, 09:51 PM	#7
mike49504 diyAudio Member Join Date: Sep 2006	Does anyone know where i can get the driver ic's for this amp? Allied electronics show 2 different 1's a 15 lead and a 16 lead . I have the 16 lead 1 but they show no stock on that 1. The parts number is IR2010S

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