HDMI QUESTION: I see video on my tv from my MacBook Pro but I don't hear audio. In the output section under sound, I am not getting anything other than my built in speakers as an option. Any suggestions?

hi...can i use this mini plug split to RCA cable to connect my Macbook to the TV? i explain better...i should use the red and white cable in the RCA connector of my tv and the jack in the headphone output of my mac?

All HDMI is not created equal - different 'versions' of the specification - neither are all HDMI "cables" created equal.

From > Mac computers: Frequently asked questions about using HDMI - Apple Support

Supported Macs

...

MacBook Pro with Retina display (Mid 2012) and later models

...

You don't give us your OS X version. Sooo...

OS X Yosemite: Use your TV as a display - Apple

https://support.apple.com/kb/PH19036

Apple Inc.

OS X Mavericks: Use a television as a display - Apple

https://support.apple.com/kb/ph13801

Apple Inc.

Audio from a minidisplay port or thunderbolt port was incorporated in MBPs with the 2010 models. Older ones require tapping the audio output port.

Ciao.

A Mac notebook from 2003 is NOT a Macbook Pro (first released in 2006)

Let's start over, shall we?

1.  Menu > About this Mac
   take a screenshot of the window -
   to capture a "Dialog box or Alert Message", ⌘ Command + ⇧ Shift > Press ' 4 ' > SPACEBAR , the cross-hair cursor will turn into a "Camera" and hilite the dialog > click the mouse button. The image will be saved to your Desktop as '.png' file and be named differently according to your OS X version.
2. Choose the [More info ] button on the window (will open System Profiler)
3. Select All in the Hardware Overview pane
4. Copy/paste the info here - DELETE the info where indicated in my paste

Hardware Overview:

Machine Name: PowerBook

Machine Model: PowerBook3,1

CPU Type: PowerPC 750 (83.0)

Number Of CPUs: 1

CPU Speed: 500 MHz

L2 Cache (per CPU): 1 MB

Memory: 512 MB

Bus Speed: 100 MHz

Boot ROM Version: 4.1.8f5

Serial Number: DELETED

Sales Order Number: DELETED

your turn 😉

[heh heh] 😉

My guess is that you will surely need some combination of cabling and possibly adapters depending on your input options of your TV. If you post the Make/model# of your TV (Insignia?) we can look 'em up easiest.

Best case =

• your display out will need 1 adapter to whatever your TV likes
• your audio out will need a mini-plug split to RCA stereo L-R (red & white) in

for easy reference - your Mac > Ports > http://www.everymac.com/systems/apple/macbook_pro/specs/macbook-pro-core-2-duo-2 .53-aluminum-15-mid-2009-sd-unibody-spec…