This will depend on your receiver model, but in most cases, there is a work-around that will allow you to use your current receiver. To connect your Blu-ray 3D™ player to a receiver without HDMI 1.4 inputs, your Blu-ray 3D™ player will need multiple HDMI outputs, or will need to be able to support simultaneous HDMI and optical/coaxial outputs. With multiple outputs, you can connect the Blu-ray™ player directly to the 3DTV (HDMI 3D pass-through for the picture) and connect the Blu-ray™ player to your older A/V receiver using an HDMI cable for optimal sound or an optical/coaxial cable if HDMI is not an option.
Note that in order to hear top quality high resolution compressed audio (Dolby True HD or DTS Master Audio for example), you will need to connect your audio via HDMI cables. Please consult your manufacturer for additional guidance.