Keys Fitness Treadmill Service Manual page 38

No Response and No Display
Unit is Fixed GOOD
Replace wire
harness (13-0016)
from Console Panel
BAD
to M/C first before
proceeding to next
step
Check unit for
GOOD
operation
BAD
Verify
DOME Display MEMBRANE
Style
Replace
Console
Press Power Key
Remove Motor
Cover
Check for
LVS (yellow)
LED
ON
Remove and re-
install Console
Panel Wire
Harness plug on
M/C Board
Check unit for
operation
BAD
Remove HRC,
Remote Speed and
Incline Switch from
Control Panel (if
equipped)
Plug all wires
back into Console
Check unit for
GOOD
Panel (one at a
operation
time) to isolate
defective part.
Replace
defective Part
Unit is Fixed
and check
operation
Remove all ribbon
cables connected
to Control Panel
and push the
reset button
Check Replace
ON
Display Membrane
OFF
Replace
Console
Is Circuit
OFF
Breaker
tripped?
NO
Check AC source
circuit breaker or
try new source
and check
operation again
Do you have
Power?
NO
Unplug unit from AC
and check the Hot
and Common AC
terminals on M/C
Board for connection.
Bypass circuit breaker.
Disconnect black wire from HOT
terminal on M/C. Disconnect AC
cord black wire from circuit
breaker terminal and connect to
HOT terminal on M/C. Apply AC
to unit.
Do you
have
Power?
NO
Verify AC
outlet (source)
has power
If AC outlet is
OK and unit still
has no power-
Replace Power
Cord
Push back in
and check
YES
operation
YES Unit is Fixed
YES Unit is Fixed
38