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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Bose factory car amp 4A5 035-225
I am working on a Bose car amp model:
4A5 035-225 143604 /4306 Year:March 1991 came out of a 1993 Audi Quattro 100CS 2.8 and I need a generic part for: U1=Bose # 131354=op amp IC=20 pin dip U2=Bose # 134499=Class D amp IC=20 pin dip note:many car makers use these factory Bose car amps in their upper class models.Thanks for replies Sidney E-mail:sidneybek(at)yahoo.com Dartmouth,Nova Scotia Canada |
#2
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Bose factory car amp 4A5 035-225
wrote: I am working on a Bose car amp model: 4A5 035-225 143604 /4306 Year:March 1991 came out of a 1993 Audi Quattro 100CS 2.8 and I need a generic part for: U1=Bose # 131354=op amp IC=20 pin dip U2=Bose # 134499=Class D amp IC=20 pin dip note:many car makers use these factory Bose car amps in their upper class models.Thanks for replies Sidney E-mail:sidneybek(at)yahoo.com Dartmouth,Nova Scotia Canada 1993 sounds a little old to use a switching type PCM output. Are you sure? Sounds like junk yard time. Good luck getting Bose factory parts. Bob ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#3
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Bose factory car amp 4A5 035-225
Bob I don't know but here is some more info:
I need a generic part # for 20 pin dip op-amp IC as NTE and extensive Google search did not help.Here are the specs for the required part as I could not find any more info on U1 for the Bose in question below: Pins: 1=op-amp1,audio in 2= 3= 4= 5=op-amp2 in 6= 7= 8=op-amp2 in 9= 10=op-amp2 out 11= 12= 13= 14= 15= 16=compresson rectifier in 17=compressor time network 18=gnd 19=half voltage supply 20=vcc (12v) (12 ma draw) Sidney E-mail:sidneybek(at)yahoo.com Dartmouth,Nova Scotia Canada |
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