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Author Topic: What happens what a pl6.0 pfc blows NEED parts  (Read 4636 times)

Zachary Zimmerman

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What happens what a pl6.0 pfc blows NEED parts
« on: February 08, 2013, 10:45:20 pm »

Hey everyone I got this pl 6.0 pfc and I torn it down and of course it's a power supply failure just like all the other 6.0s.  I want to re build it myself. I'm an electronic student and the local college I know I can fix it just need parts.

It's a blown power MOSFET it is a minor blow compared to some of the pictures I've seen where it completely melts the trace of
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Bob Leonard

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #1 on: February 08, 2013, 11:46:50 pm »

Before you get crazy consider the domino effect, availability of components, and your lack of experience. If you have $0 into the amp it may be a great learning tool for you. If not call QSC and ask them for a repair price. At the very least make sure you can obtain the components first, and of course, be very carefull around the high voltage.
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Zachary Zimmerman

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #2 on: February 09, 2013, 12:26:14 am »

Before you get crazy consider the domino effect, availability of components, and your lack of experience. If you have $0 into the amp it may be a great learning tool for you. If not call QSC and ask them for a repair price. At the very least make sure you can obtain the components first, and of course, be very carefull around the high voltage.


Thank you like I said I'm in the electronics program and I have been working on powers supply's much more dangerous for electric cars etc and built a few tesla coils as well I now how to be safe around high voltages and voltages storing capacitors as some large caps can kill if the current follows across the heart and difibulates it.
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John Roberts {JR}

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #3 on: February 09, 2013, 09:57:38 am »

Hey everyone I got this pl 6.0 pfc and I torn it down and of course it's a power supply failure just like all the other 6.0s.  I want to re build it myself. I'm an electronic student and the local college I know I can fix it just need parts.

It's a blown power MOSFET it is a minor blow compared to some of the pictures I've seen where it completely melts the trace of
You didn't say where you were located.

What are you actually asking? Have you tried QSC service?

There are several companies that sell electronic components (Mouser, Digikey, etc.). 

If you've determined that it is just a blown mosfet, replace that. 

If you have experience with high current power supplies, you surely realize repair is not always as simple as replacing the obviously damaged parts. An incomplete repair may just blow them up again.

JR
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Zachary Zimmerman

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #4 on: February 09, 2013, 12:33:03 pm »

You didn't say where you were located.

What are you actually asking? Have you tried QSC service?

There are several companies that sell electronic components (Mouser, Digikey, etc.). 

If you've determined that it is just a blown mosfet, replace that. 

If you have experience with high current power supplies, you surely realize repair is not always as simple as replacing the obviously damaged parts. An incomplete repair may just blow them up again.

JR


I have tried qsc and they will not return my calls and I do use digikey mouser and jamco regularly

Has anyone here actually done this repair on this amp I guess is what I'm asking
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John Roberts {JR}

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #5 on: February 09, 2013, 12:53:18 pm »

If you do a "search" you will find several discussions.. Mark "bass pig" Weiss posted about repairing one or more.. IIRC another guy in OZ has repaired them.

I am surprised that QSC would shut down a customer unless perhaps they were apprehensive about your ability to realize a good outcome.

JR
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Zachary Zimmerman

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #6 on: February 09, 2013, 01:04:44 pm »

If you do a "search" you will find several discussions.. Mark "bass pig" Weiss posted about repairing one or more.. IIRC another guy in OZ has repaired them.

I am surprised that QSC would shut down a customer unless perhaps they were apprehensive about your ability to realize a good outcome.

JR

I have never had to deal with them could it be because of that .
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Rob Spence

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What happens what a pl6.0 pfc blows NEED parts
« Reply #7 on: February 09, 2013, 02:10:41 pm »

QSC charged me $600 to replace/repair a power supply in one if those.

I had taken it to an authorized repair guy and after some work he concluded that he did not have the appropriate jigs to hold thing for repair and sent it (with my permission) to QSC.

Given that these things still bring $1500 or so used, the money was well spent.


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rob at lynxaudioservices dot com

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Zachary Zimmerman

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #8 on: February 09, 2013, 02:34:08 pm »

QSC charged me $600 to replace/repair a power supply in one if those.

I had taken it to an authorized repair guy and after some work he concluded that he did not have the appropriate jigs to hold thing for repair and sent it (with my permission) to QSC.

Given that these things still bring $1500 or so used, the money was well spent.


Sent from my iPad using Tapatalk HD

Did you have to pay ur authorized guy and qsc
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Dave Rickard

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #9 on: February 09, 2013, 03:18:26 pm »

I have never had to deal with them could it be because of that .

I've only dealt occasionallly with QSC, but their communication was very good. Maybe something you said set off their alarms.
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Rob Spence

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What happens what a pl6.0 pfc blows NEED parts
« Reply #10 on: February 09, 2013, 04:07:52 pm »

Did you have to pay ur authorized guy and qsc
I paid the service guy here. He showed me what part was his charge and what was QSC. The total was around $600. Not bad since I bought it knowing the problem so paid accordingly.


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rob at lynxaudioservices dot com

Dealer for: AKG, Allen & Heath, Ashley, Astatic, Audix, Blue Microphones, CAD, Chauvet, Community, Countryman, Crown, DBX, Electro-Voice, FBT, Furman, Heil, Horizon, Intellistage, JBL, Lab Gruppen, Mid Atlantic, On Stage Stands, Pelican, Peterson Tuners, Presonus, ProCo, QSC, Radial, RCF, Sennheiser, Shure, SKB, Soundcraft, TC Electronics, Telex, Whirlwind and others

Jon Ross

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #11 on: February 09, 2013, 05:31:19 pm »

Zachary,
Did you try here?
http://yhst-93643794936312.stores.yahoo.net/semiconductors.html

Also Bob Lee and Thanh Nguyen are great resources for QSC products. On the QSC forum they go above and beyond as far as technical consultation. Thanh had me checking voltages inside my amp helping to find a problem with an RMX amp losing audio. It was a while ago and with his help the amp has been in use since.

IIRC I ordered over the phone when bought pots for my RMX amps and ribbon cables and chassis parts for my PLX amps. They sell replacement pcb "channels" for their amps as well as rebuild kits to bring your amps back to factory specs, so I don't think they worry too much who their sourcing parts to.
« Last Edit: February 09, 2013, 05:36:51 pm by Jon Ross »
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paul bell

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #12 on: February 10, 2013, 12:43:33 pm »

I've had nothing but great experiences with QSC and their repair department.

The power supplies on the 6.0/6.0II/9.0 is a very special design with four levels of voltage rails. There's only one way to setup the power supply and that's with the special one-of-a-kind power supply alignment rig that only QSC has.

If you had an authorized repair shop do the servicing and the power supply would need repair, they would have no choice but to send it to QSC for the repair.

No one, not even you, can do the work. Period.

QSC can still perform these repairs. I recently had them replace both supplies in one of my 9.0 units.

QSC has a trade-in rebate program for these amplifiers. You purchase a new PL380 and send QSC your dead 6.0/6.0II/9.0 amp along with the receipt for the PL380 and they send you a check for $800.00.

The PL380 weighs a lot less, has more power and has a proven track record.

http://www.qscaudio.com/rebate/PL6-9_rebate.htm
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paul bell

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #13 on: February 10, 2013, 12:47:52 pm »

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Re: What happens what a pl6.0 pfc blows NEED parts
« Reply #13 on: February 10, 2013, 12:47:52 pm »


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