EFX 885, 835, 825
Service Manual 20039-166
Page 49
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Troubleshooting 3.31 - P80 Poor Audio Quality All Channels, Multiple Units
Description
While video signal is good to one or a few machines, the sound is of poor quality.
Possible Causes
1.
Bad or damaged headphone jack
2.
Bad or damaged headphone jack cable
3.
Poor television signal from the head end
Possible Remedies
1.
Remove and inspect headphone jacks for damage. If jack passes visual inspection, swap headphone jack
with known good.
2.
Inspect cables from console to headphone jack. Verify that they are not damaged. If they are, these are
not field-replaceable. Console will need to be swapped.
3.
Check for good video signal from the head end. Generally, however, if the issue is a cabling issue, the video
will be bad along with the sound. However, if there is an issue with how the amplifier in the head end is
configured, this could result in good video, but poor sound, though this is likely to be an issue across all
units rather than a subset of the entire facility.
Summary of Contents for EFX 825
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