P80 Poor Audio Quality All Channels, One/Limited Units - Precor EFX 885 Service Manual

Troubleshooting 3.30 - P80 Poor Audio Quality All Channels, One/Limited 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 to the machine
Possible Remedies
1. Remove and inspect headphone jack 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 to the tuner. 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.
©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
EFX 885, 835, 825
Service Manual 20039-166
Page 48