JL Audio schematic

jkr · 27th June 2012, 06:04 PM

Hi, I am looking for JL audio 1000/1 schematic.

thanks

Perry Babin · 27th June 2012, 07:14 PM

They are virtually impossible to get. What do you need to know?

jkr · 28th June 2012, 02:55 PM

The problem is that, it is turning on and off, draws large current without any load. All output FETs are ok, all diodes OK. On FET there is only 5.7V.
Capacitors looks ok. No burnt part visible also.
Any idea?
Thanks

Perry Babin · 28th June 2012, 03:27 PM

The amp is going to draw fairly significant current when it powers up. Was it blowing fuses in the vehicle?

jkr · 28th June 2012, 05:06 PM

It doesnot blow fuses, just power led blinks. I can see current draws more than 5 amps and then goes down. looks like, power supply side problem. no audio.
schematic would be helpful.
thanks

Perry Babin · 28th June 2012, 05:13 PM

Does it do this on a car battery?

Are you using a power supply to try to power it up?

These amps are VERY sensitive to dips in voltage and will shut down if it drops too low. The dip in voltage that's too quick to be read with a multimeter can shut it down.

27th June 2012, 06:04 PM	#1
jkr diyAudio Member Join Date: Jun 2012	JL Audio schematic Hi, I am looking for JL audio 1000/1 schematic. thanks

27th June 2012, 07:14 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	They are virtually impossible to get. What do you need to know? __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

28th June 2012, 02:55 PM	#3
jkr diyAudio Member Join Date: Jun 2012	JL audio 1000/1 The problem is that, it is turning on and off, draws large current without any load. All output FETs are ok, all diodes OK. On FET there is only 5.7V. Capacitors looks ok. No burnt part visible also. Any idea? Thanks

28th June 2012, 03:27 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The amp is going to draw fairly significant current when it powers up. Was it blowing fuses in the vehicle? __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

28th June 2012, 05:13 PM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Does it do this on a car battery? Are you using a power supply to try to power it up? These amps are VERY sensitive to dips in voltage and will shut down if it drops too low. The dip in voltage that's too quick to be read with a multimeter can shut it down. __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links


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28th June 2012, 05:06 PM	#5
jkr diyAudio Member Join Date: Jun 2012	It doesnot blow fuses, just power led blinks. I can see current draws more than 5 amps and then goes down. looks like, power supply side problem. no audio. schematic would be helpful. thanks

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