What is the pin and how do i get sound tv my stareo

unfortunately, after doing more research and taking a look at the panels, schematics, etc.. there does not seem to be any audio outputs on your tv model (AT3220A).. am verifying now unfortunately, after doing more research and taking a look at the panels, schematics, etc.. there does not seem to be any audio outputs on your tv model (AT3220A).. am verifying now

verified via acer's spec site:
Terminals:

Analog Tuner In – Yes

Digital Tuner In – No

Component1(HD) In – YCbCr/YPbPr, audio R/L

Component2(HD) In – YCbCr/YPbPr, audio R/L

Component3(HD) In – No

AV1 In – CVBS, S-video, audio R/L

AV2 In – CVBS, S-video, audio R/L

AV3 In – No

AV4 In – No

AV5 In – No

AV Out – No

SPDIF Out – No

DVI-D In – Yes, with HDCP

HDMI In – Yes, with HDCP

PC D-Sub In – Yes

PC Audio In – Yes

Audio Out – No

Headphone Out – No
verified via acer's spec site:
Terminals:
Analog Tuner In – Yes
Digital Tuner In – No
Component1(HD) In – YCbCr/YPbPr, audio R/L
Component2(HD) In – YCbCr/YPbPr, audio R/L
Component3(HD) In – No
AV1 In – CVBS, S-video, audio R/L
AV2 In – CVBS, S-video, audio R/L
AV3 In – No
AV4 In – No
AV5 In – No
AV Out – No
SPDIF Out – No
DVI-D In – Yes, with HDCP
HDMI In – Yes, with HDCP
PC D-Sub In – Yes
PC Audio In – Yes
Audio Out – No
Headphone Out – No