Listening modes not available through optical connection

Some info from the manual:
The Dolby Digital and DTS listening modes can only be selected if your Blu-ray Disc/DVD player is connected to
the AV receiver with a digital audio connection (coaxial,
optical, or HDMI).
• The listening modes you can select depends on the format of the input signal. To check the format, see "Displaying Source Information"
• While a pair of headphones is connected, you can select the following listening modes: Mono, Direct, and Stereo.
• While Speakers A and B are on, you can select only the
Direct, Stereo, Mono, or T-D (Theater-Dimensional) listening mode.

Plus this Bit of info on the speakers A and B buttons.
While Speakers B is on, channels are reduced to 2.1 in the
main room.

If you can access the speaker configuration it should provide test tones to each speaker. If you can't the speaker A and B are not set right.
If you have pressed the stereo or mono button no sound will be heard except from the front two or the sub.

Make sure that on your cellular has a bluetooth capability, make sure that it is in pairing mode or listening or searching mode only then will your car stereo be able to search for the signal from your phone. There are two ways usually your phone will transmit and your stereo sill listen to the signal or the other way around.

Page 22 in the Manual details the required input to be selected dependent on the connection type.

To enjoy sound from the TV (Page 29)

AUX*1: When using an Audio cable

ARC*1: When using an HDMI cable

(Available when using an ARC

compatible TV)

DIGITAL IN*1: When using an Optical
digital audio cable

And from Page 29

Turn on your TV and select the appropriate audio input mode
[AUX, ARC, D-IN] to suit the connections to this unit. (Page 22)

Page 30 details how to set the audio link.

Setting the audio link with the TV

With the remote control;

Select the actual TV audio connection on the main unit.

1 Press [START] and press [3, 4] to select "Other

Functions" and press [OK].

2 Press [3, 4] to select "Setup" and press [OK].

3 Press [3, 4] to select "TV / Device Connection" and press

[OK].

4 Press [3, 4] to select "TV Audio Input".

5 Press [2, 1] to switch "AUX","ARC" or "DIGITAL IN".

Select "AUX" or "ARC"*1 in "TV Audio Input" when the

DIGITAL AUDIO IN terminal is used for the STB

connection.

Whenever the connection or settings are changed, reconfirm
the points above.


Please leave feedback

Cheers

Andy

Having browsed the user manual I wonder if you plugged in the Sony BDV T57 Home Theatre System while the Polaroid FLM-2632 tv was powered down via the optical cable .
Then powered up the Sony BDV T57 Home Theatre System first and then powered up the Polaroid FLM-2632 tv
Maybe the Polaroid FLM-2632 TV has to detect that the Sony BDV T57 Home Theatre System is connected and powered up when the Polaroid FLM-2632 powers up. To activate its digital audio out ????
The note part about only being available only under HDTV (cable/air) mode. Might be the cause of your hassle also ?


DIRECTLY FROM THE USER MANUAL
source from
http://tv.manualsonline.com/manuals/mfg/polaroid/polaroid_flm_flm2632.html
"
? Connecting to Audio Receiver:
Use an audio cable to connect the audio receiver's audio LINE IN jacks to LCD TV's
AUDIO OUT jacks. ? Connecting to Digital 5.1 Sound System:
METHOD A:
Use an optical cable to connect the audio amplifier's OPTICAL IN jacks to LCD TV's
OPTICAL OUT jacks.
METHOD B:
Use a coaxial cable to connect the audio amplifier's COAXIAL IN jacks to LCD TV's
COAXIAL OUT jacks.
Note: Above mentioned function is only available under HDTV (cable/air) mode.
? Connect all AC power sources, before turning on the power switch of the LCD TV or
other connected equipment.
? Press the button on the remote to turn on the LCD TV."

Check the input mode on the reciever so that they are set for dual, rather than just digital or analog. It might be set for analog and your using a digital optical in cable. Also make sure DTS mode is turned off, unless your watching a DVD that is dts enabled.

If you put DVD with Dolby Digital soundtruck it will show on your TX-SR304 Dolby Digital mode, and if you have DVD with DTS mode it will show DTS

If you get sound on direct mode say from dvd but no sound when you go to dolby make sure you have the right input selected by pressing the digitat input button on the front of the amp,ie if dvd optical out is pluged into amp optical input 1 select this on amp then set audio to prologic2.DVDs through this input will decode to dolby digital/dts.
hope this helps.
CABLE GUY.

Is Yamaha HTR-640 a receiver? Try HDMI from PS3 to receiver or Sony HDTV. If HDMI from PS3 to receiver the you need and HDMI from receiver to out Sony HDTV. You could connect everything to receiver and HDMI out to HDTV. You can not have an HDMI cable AND an optical cable coming out of the PS3, only one or the other.

Can you please provide your model number. Thank you, Onkyo USA.