cmoy amp signal section problems. Need help

[Ridska]

Ridska here,

So , im having some trouble with the cmoy amp ( the signal section ) , No i shall try to explain the best way i can , if your having trouble understanding , no worries.

 I am going to give you a bit of context for you to understand my situation , So , i am an electronics assembler , And i go to school to presue that job in here helsinki.

Now i needed to do a project , I could pick anything , So i picked the Cmoy amp aka the altoids small amp. Schematic : https://tangentsoft.net/audio/cmoy/misc/cmoy-tangent-sch.pdf

Now the power section is done ( shown below ) and thats all dandy , but the signal section what screwed me bit over, So i came here for help.

Spoiler

In the schematic ,the signal section , it says '' only one channel is shown , duplicate everything for second channel '' , Went to my teacher and asked do i have to duplicate the chip as well. the answer was yes.

the chip ( OPA2132PA ) :  http://pdf1.alldatasheet.com/datasheet-pdf/view/82143/BURR-BROWN/OPA2132PA.html

Did that , ofc i was stuggling a bit to make the signal section in ARES but at the end , i did finish. BUT ... My teachers helper came to me and said that the schematic was wrong due to the ship being a double enclosed amp within one package.

 

So all that time went to waist and i have 2 options that just came to mmind:

1. Restart from sratch and do it right.

2.Replace the chip with another chip that has one amp inside ( Recommendations of the replacement are welcome ) .

 

Oh and here is the ''' failed ''  signal section ( seen below )

Spoiler

Thanks and stay chill.

[Ridska]

some help.............

[Huntsman]

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