How to check CS3310 and DRV134

[kraka]

Αfter three months of trying to make the sound card on my PC produce sound, I began to suspect that the problem might be due to a faulty part of the card, since it were troubled shortly after installing a faulty PSU on the PC.
I have started to desoldering various parts for which I have found spare parts and bought them. But I would like to know which of the components I will replace, is burnt out (if one of them is and something else is not happening).
Μainly I am interested in CS3310 and DRV134.
CS3310 is a stereo digital volume control, and DRV134 is differential output amplifier.
I have download the datasheets for both, but i am a hobbyist with basic knowledge in electronics.
I have recently bought a circuit repairing station and i also have a microscope and a multy-meter. Also i will buy a capacitance meter.
Can anybody help me on how to check these microcontrolers / IC ?
My card is the EMU APS (introduced back in 1999)

 

[tepalia02]

For the simplest testing of DRV134, you can implement the typical single-ended application shown in figure 28 of this datasheet.

https://www.ti.com/lit/ds/symlink/drv135.pdf?ts=1696842867954&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FDRV135%252Fpart-details%252FDRV135UA