Hirschmann PAL 1 HU, Manual

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Help with problems
Video processor
Symptom Remedy
Red LED on Error in module video
- Check the fuse on the assembly (see data sheet 1760)
Green LED "VIDEO" off - No standard sync pulse on the video main sync input
- Check the connections on the rear panel of module
No text insertion in the
substitute signal
although the EPROM
is fitted - Check the input signal at the monitoring output
- Check the settings on the PC
Video processor fails to
switch to the substitute
signal if the input si-
gnal is not present,
REMOTE LED on Forced switch-through of the main input
- Check the settings on the PC
No output signal,
red LED off
LED "VIDEO" on,
LED "REM AUX" off Signal path in video processor is interrupted
- Check the switch settings in the module (see Data sheet)
No LED’s are on No operating voltage is being supplied to the module
- Check the operating voltage supply on the rear panel
- Check the fuse on the assembly (see data sheet 1760)
Vision/sound modulator
Symptom Remedy
Red LED on Error in module
- Check the fuse on the assembly (see data sheet 1760)
PLL unlocked from sound1 or no vision IF or no sound1 IF
- Check the settings on the PC
Vision carrier is not modulated even though a video signal
complying with the standard is applied at the video main
sync. input
- Check the connections on the rear panel of module
Red LED lights up and
green LED "VIDEO" is
on Video main sync. signal is present but no video main signal. -
- Check the connections on the rear panel of module.
Operation
Manual
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PAL modulator 1 HU ü