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

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

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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