TLV-300E/TAV-900A Professional Digital TV Receiver
User’s Manual
frame rate according with your display. Types are 25 Hz, 29.97 Hz, and 30 Hz. In fact, 25 Hz is to be used for
both 25 Hz and 50 Hz, 29.97 Hz for both 29.97 Hz and 59.94 Hz, and 30 Hz for both 30 Hz and 60 Hz.
ASPECT RATIO: The ASPECT RATIO sub-menu allows you to change the aspect ratio of MAIN video.
Types are 16:9 and 4:3. There are some limitations of the aspect ratio depending on the video resolution
(DISPLAY TYPE). Refer to the next table:
Resolution (DISPLAY
TYPE)
Supported Aspect Ratio
1080i
16:9
4:3
720p
16:9
4:3
480p/576p
16:9
4:3
480i/576i
16:9
4:3
SCREEN MODE: The SCREEN MODE sub-menu allows you to change the screen zoom option. Types are
LETTER BOX, IGNORE, and PAN-MODE. This is particularly important when the incoming image comes
with a special ratio and sometimes you have to adapt it to fit your display in order to avoid an image
distortion. Usually it is used when a 16:9 signal is being displayed on 4:3 monitor. The LETTER BOX mode
displays the whole picture with black bars on top and bottom. The PAN-MODE zoom in the picture on the
top and bottom.
3.2.2.3 CONFIG/MAIN/AUDIO sub-menu
AUDIO: The AUDIO sub-menu allows you to change the type of audio. There are DIGITAL AUDIO,
PROLOGIC, LANGUAGE, VOLUME, MUTE, VOLUME METER and SDI AUDIO sub-menus.
DIGITAL AUDIO: For changing the type of digital video. Types are PCM and Compressed as a digital
output. In the PCM mode, the receiver decodes the incoming compressed audio and output as a digital stereo
audio. In the compressed audio mode, it passes the incoming audio in a compressed format (AC-3/MPEG-1,
2) to an external audio decoder. It uses six tracks (Center/Left/Right/Left Surround/Right Surround/LFE).
This is referred as 5.1 for the five main channels plus an effects channel. Digital audio is through MAIN-
AES3 and SUB-AES3 connectors. SUB DIGITAL AUDIO settles to PCM output only.
PROLOGIC: For setting a configuration of the analog audio output. Types are Pro-Logic ON and OFF. In the
PCM mode, the user can select either Pro-Logic ON or OFF. In the Pro-Logic ON, the analog audio output
provides a Dolby Pro-Logic encoded signal (L/R/Ls/Rs/W) if the incoming compressed audio is AC-3 format
and it contains a Pro-Logic encoded signal. If the system doesn’t have a surround sound decoder, it would be
treated as normal stereo (L/R) tracks. The decoding chip in Dolby Pro-Logic emphasize directional sounds by
increasing the output of the directional sounds in their respective channels, this adds more accuracy to the
sound. In the Pro-Logic OFF, it will create a pure stereo signal. Analog audio is through XLR connevtor
labeled L1, R1, and D-Sub 9P connector labeled L2, R2.
LANGUAGE: For configuring of the audio language output. The user can choose the language to be used
within the options sent with the broadcasted incoming signal. This sub-menu supports four languages. If
there is no language available for selected channel setting, then it will be serviced automatically to first
AUDIO.
VOLUME: For setting the volume of the audio. The volume can be adjusted within the range from –1dB to –
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