EFX 885, 835, 825
Service Manual 20039-166
Page 42
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Troubleshooting 3.24 - P80 Poor Quality Video One Channel(s) or Limited Channels
Description
One or a limited number channels on a unit has poor reception or no reception.
Possible Causes
1.
Loose or damaged coaxial cable.
2.
Poor television signal to the machine.
3.
Incorrect channel scan lineup.
Possible Remedies
1.
Check for good video signal to the tuner.
a.
Inspect jumper cable connecting fitness equipment to the video drop. If it is visibly damaged or
disconnected, replace or reconnect. If it passes visual inspection, swap with a known good jumper cable.
If the TV channel now appears, the cable is the cause. Replace the jumper cable. If the channel does not
appear, perform the same check on the F connectors.
b.
Inspect the cable that runs from the patch panel at the bottom of the machine to the console. If this is
disconnected or damaged, reconnect or replace. If the cable passes visual inspection, use a known good
cable to bypass this cable. If the TV channel appears, replace the coax cable running through the
machine.
c.
Connect the machine to a known good A/V drop. If the TV channel now appears on the console, verify
the drop is good. If not, have the customer contact their A/V service technician to repair the drop.
d.
Verify signal strength with signal meter.
2.
As above, verify condition and connections of coax cables as well as verify quality of signal to that drop. Verify
signal strength using a signal meter.
3.
Rescan channels on that unit. This is less likely to be the problem if the channel is coming in poorly since if the
console is looking at the wrong channel number entirely, this should manifest as a black TV screen rather than
poor video quality.
Содержание EFX 825
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