Blown Diablo Prototype Repair DIY help please

Drsnazzy · 14th December 2011, 11:42 PM

Hey guys i was recommended to this fourm by a guy on caco, Ok here is what happened.

I was stupid and hooked my diablo 2500 prototype directly to a battery charger, it went over 16v and blew a cap, I dont know what else it did. I made a video if someone could help me out! thanks alot

Help me Fix my Diablo 2500 prototype - YouTube

More on the blown amp - YouTube

More on amp 2 - YouTube

These are all videos i made today, some guys on caco were trying to help me, they think i might have a shorted transistor.

here is a link the the thread on caco- Can someone help me fix my amp? - Car Audio Classifieds

Drsnazzy · 14th December 2011, 11:54 PM

here are some pics of my board where the other fourm guys said the problem could be

Drsnazzy · 15th December 2011, 12:04 AM

What happened is it blew a cap, i replaced the cap and now the amp does nothing but click when it gets power

Drsnazzy · 15th December 2011, 12:08 AM

voltage on the TL494 IC

Voltages on Pins 1-16

INPUT VOLTAGE 13.5v

1- 0
2- 3.16
3- 0
4- .05
5- 1.46
6- 3.61
7- 0
8- .68
9- .09 to 1
10- Same as 9
11- .68
12- 13.73
13- 4.99
14- 4.99
15- 4.82 to 4.83
16- 0

These are the voltages for the rectangle thing right by the 494

I'm measuring them from clostest to the 494 to far

Pin 1- 12.53
Pin 2 - 0
3- 4.99
4- .01
5- 0
6- 3.04
7- 11.72
8- 0

Drsnazzy · 15th December 2011, 12:10 AM

I didn't have the batt charger on the battery so those voltages were from straight off the battery for the rectangle part, (btw it has no part # it was scratched off not by me tho)

Perry Babin · 15th December 2011, 01:53 AM

You need to determine why pins 8 and 11 0f the 494 don't have 12v (approximately) on them.

As a side note, my anti-virus alerted me to a potential problem (faceboax.a) on that site (car audio classifieds) and two other sites (that scan domains for threats) list it as suspicious. If you're a regular visitor of that site, you may want to ask the moderators to see if the site has been hacked.

Drsnazzy · 15th December 2011, 11:19 AM

Where should i start checking?

brandes.cm · 15th December 2011, 12:24 PM

Follow the traces from pin 11 or 8 on the PC board back to the parts. It should be a part that ties to + voltage.

Read the basic amp repair from Perry's sig line.

Sent from my DROID using Tapatalk

brandes.cm · 15th December 2011, 08:05 PM

Since this company is belly up, can you get the schematic from the fellow on CACO?

14th December 2011, 11:42 PM	#1
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	Blown Diablo Prototype Repair DIY help please Hey guys i was recommended to this fourm by a guy on caco, Ok here is what happened. I was stupid and hooked my diablo 2500 prototype directly to a battery charger, it went over 16v and blew a cap, I dont know what else it did. I made a video if someone could help me out! thanks alot Help me Fix my Diablo 2500 prototype - YouTube More on the blown amp - YouTube More on amp 2 - YouTube These are all videos i made today, some guys on caco were trying to help me, they think i might have a shorted transistor. here is a link the the thread on caco- Can someone help me fix my amp? - Car Audio Classifieds

15th December 2011, 01:53 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	You need to determine why pins 8 and 11 0f the 494 don't have 12v (approximately) on them. As a side note, my anti-virus alerted me to a potential problem (faceboax.a) on that site (car audio classifieds) and two other sites (that scan domains for threats) list it as suspicious. If you're a regular visitor of that site, you may want to ask the moderators to see if the site has been hacked. __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

15th December 2011, 12:24 PM	#8
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Follow the traces from pin 11 or 8 on the PC board back to the parts. It should be a part that ties to + voltage. Read the basic amp repair from Perry's sig line. Sent from my DROID using Tapatalk __________________ BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

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14th December 2011, 11:54 PM	#2
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	here are some pics of my board where the other fourm guys said the problem could be

15th December 2011, 12:04 AM	#3
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	What happened is it blew a cap, i replaced the cap and now the amp does nothing but click when it gets power

15th December 2011, 12:08 AM	#4
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	voltage on the TL494 IC Voltages on Pins 1-16 INPUT VOLTAGE 13.5v 1- 0 2- 3.16 3- 0 4- .05 5- 1.46 6- 3.61 7- 0 8- .68 9- .09 to 1 10- Same as 9 11- .68 12- 13.73 13- 4.99 14- 4.99 15- 4.82 to 4.83 16- 0 These are the voltages for the rectangle thing right by the 494 I'm measuring them from clostest to the 494 to far Pin 1- 12.53 Pin 2 - 0 3- 4.99 4- .01 5- 0 6- 3.04 7- 11.72 8- 0

15th December 2011, 12:10 AM	#5
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	I didn't have the batt charger on the battery so those voltages were from straight off the battery for the rectangle part, (btw it has no part # it was scratched off not by me tho)

15th December 2011, 11:19 AM	#7
Drsnazzy diyAudio Member Join Date: Dec 2011 Location: Saginaw MI	Where should i start checking?

15th December 2011, 08:05 PM	#9
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Since this company is belly up, can you get the schematic from the fellow on CACO?

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