In the user manual Philips HTS3540 exactly on the option “Change Audio Settings” (audio setup) there are several options, one of which option is “Prologic II Mode”, but in my device that option was not there.
Can you explain what is the problem?

File name: HTS3540 98.BIN
Version: 12.10.41.08
Sub-Ver: 10.05.00.10
RISC: OA.00.03.01
Servo: AE.58.00.00
Region Code: 3
HDCP: Pass
MCU: HTS3540 – V6 1

I hope this problem can be solved. And what should I do to it?? Can you help me?