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11-20-2012, 05:19 AM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | | help with QSC PLX 2402 amp (now with better image)
the band i recently joined uses 2 QSC amps, unfortunately one of them stopped working.
according to the local tech these 2 components are broken: 
local shops don't have these parts available, many don't know what they are anyway so can anybody help me to source them?
many thanks!
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Last edited by subdude67 : 11-21-2012 at 11:30 PM.
Reason: new image
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11-20-2012, 05:30 AM
| | Registered User | | Join Date: Nov 2003 Location: Toronto, Ontario, Canada eh? | | Unfortunately your picture isn't clear enough for me to see the part number clearly but go here www.digikey.com and type into the search field the part number that starts with 'I' and ends with, I think, a 'C'.
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11-20-2012, 05:34 AM
| | Registered User | | Join Date: May 2004 Location: Toronto, Canada | | | Just contact QSC and I'm sure they will have a local repair centre sort you out.
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11-20-2012, 05:36 AM
|  | Registered User | | Join Date: Dec 2002 Location: Virginia Beach, VA | | Quote:
Originally Posted by wabbit  Unfortunately your picture isn't clear enough for me to see the part number clearly but go here www.digikey.com and type into the search field the part number that starts with 'I' and ends with, I think, a 'C'. | Contact TBer Bob Lee http://www.talkbass.com/forum/member.php?u=17254 for assistance. If he can't help you, nobody can.
Riis
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11-20-2012, 06:01 AM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | Quote:
Originally Posted by murphy Just contact QSC and I'm sure they will have a local repair centre sort you out. | i doubt they have a service center anywhere on the whole continent!
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11-20-2012, 06:02 AM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | Quote:
Originally Posted by Zooberwerx | i have actually sent bob a PM a while back but he has not come back yet.
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11-20-2012, 06:27 AM
| | Registered User | | Join Date: Jul 2007 Location: Yorkshire, England, UK | | Quote:
Originally Posted by subdude67 according to the local tech these 2 components are broken: | The important information is the part number/s which are on the other side.
Something like these
2Nxxxx
Cxxxx - (2SCxxxx but the 2S is not printed)
Jxxxx - (again 2S not printed)
MJExxxx
(or something else)
There could also be a date code something like 0248 (2002 week 48) and a manufactures symbol.
Good clear photos of what is printed on them are essential as the list of possible devices goes on forever.
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11-20-2012, 11:51 PM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | Quote:
Originally Posted by delta7fred The important information is the part number/s which are on the other side.
Something like these
2Nxxxx
Cxxxx - (2SCxxxx but the 2S is not printed)
Jxxxx - (again 2S not printed)
MJExxxx
(or something else)
There could also be a date code something like 0248 (2002 week 48) and a manufactures symbol.
Good clear photos of what is printed on them are essential as the list of possible devices goes on forever. | we practise today so i will take better pictures, many thanks
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11-21-2012, 11:36 PM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | | better picture
here is a better image of the parts:
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11-22-2012, 03:14 AM
| | Registered User | | Join Date: Jul 2007 Location: Yorkshire, England, UK | | | That's much better.
The manufacturer is IXYS
Part number IXGH 32N60C
produced in week 36 of 1999
They are specialised switching transistors and should be replaced with only that part number.
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G&L L-2500 -> Art Pro Channel II -> 35Hz HPF -> Peavey IPR1600 -> fEARful 15/6 and/or 12/6
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11-22-2012, 03:54 AM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | Quote:
Originally Posted by wabbit Unfortunately your picture isn't clear enough for me to see the part number clearly but go here www.digikey.com and type into the search field the part number that starts with 'I' and ends with, I think, a 'C'. | i have checked on the mentioned site and found the parts, many thanks to all!
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11-22-2012, 10:14 AM
| | Registered User | | Join Date: Aug 2012 Location: Germany | | | I'm wondering a bit because the two transistors probably died just the same moment.
In general that indicates another fault/defect somewhere in the narrow circuit. |
11-23-2012, 12:09 AM
| | Registered User | | Join Date: Jan 2010 Location: Mombasa - Kenya | | Quote:
Originally Posted by ThisBass I'm wondering a bit because the two transistors probably died just the same moment.
In general that indicates another fault/defect somewhere in the narrow circuit. | hey ThisBass, thanks for bringing it up. do you have anything specific in mind that i should look into?
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11-23-2012, 03:15 AM
| | Registered User | | Join Date: Jul 2007 Location: Yorkshire, England, UK | | Quote:
Originally Posted by subdude67 hey ThisBass, thanks for bringing it up. do you have anything specific in mind that i should look into? | As they are used in either a switched mode power supply or a chopped output stage* (class D etc.) then you need to check absolutely everything in that section. Otherwise you could be putting in a repeat order after the first switch on.
* I don't know which as I have not seen a schematic for this amp (but would be very interested to see one).
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