Product manual

Contemporary Research 7 232-ATSC+ Digital HDTV Tuner
HDMI
Symptom: No Video or Signal
Most monitors accept HDMI in the RGB and Component color space, but there are exceptions. Try
switching from RGB to Component (Front panel mode 48).
Switch between 720p and 1080i, or down to 480P or 480i for old DVI sets. (Front panel mode 49)
If you‟re connecting via a Cat5 interface, HDMI receiver, or switcher, some delay the HDCP signal
slightly out of range. Call CR Support on how to extend the delay on HDMI.
Symptom: No audio or fluttering sound in display speakers connected via HDMI
Change ATSC digital audio to PCM or PCM variable (most displays do not use Dolby 5.1)
RGB/Component
Symptom: No RGB or Component Video output
Check the RGB or Component output setting in Front Panel mode 48 (48.0 is RGB, 48.2 is Component).
Symptom: No output display on VGA input
Some monitors or projectors do not support 1080i or 720P operation on the RGB port. Set resolution in Front
Panel mode 49 (49.2 for 480P).
Composite Video
Symptom: Composite video out has small image in 16:9 setting, analog channels
For a 4:3 set, tune to an analog channel and press RATIO on the remote to set to 16:9. Image will
fill left to right, you‟ll always have a black band top and bottom.
Set to 4:3 if you‟re only feeding video to 4:3 TVs.
Set output ratio on a digital channel as well - this a different setting than for analog channels.
If the tuner is used for 16:9 displays and analog TVs, choose the best setting for the widescreen,
and the NTSC will have to be a compromise. Most of the time, setting the RATIO while tuned to an
analog channel and again for a digital channel will provide the best result.
IR Control
Symptom: IR remote won’t control tuner
Hold down IR remote Select, press 9, and release both. Front-panel setting should be 15.9. In addition,
check if the remote works when the lights are off. Some energy-saving fluorescent lights produce
interference at our IR frequency (57 Hz). Try to cover the IR sensor so the lights don‟t affect operation, or
add the IR-RXC External IR Sensor. It‟s easier to hide and tilt the sensor to help with reception, and you can
try Select and 4 to use the lower IR frequency (the RXC has both types of sensors).
Line 21 (analog) Captioning on Video Output
Symptom: Video out does not include captioning
The 232-ATSC+ does not carry forward closed captioning codes when tuned to an analog channel. However,
all captioning from digital TV channels is converted to analog captioning on the video output.