Pioneer WD Series, Руководство по обслуживанию

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13
(5) Display EC
Symptom Display EC
Cause
Outdoor communication fault between power source
board and intelligent power module
S/N Inspections How to Solve Remarks
1
Check the contact of communication wire
(CN5) between power source board and
intelligent power module
Insert again if loose.
Yellow-line
part
The indicator on power
source board blinks
normal (bright for 1
second and dark for 1
second), but the
indicator on intelligent
power module does not
work normally
Replace the
intelligent
power module
If the fault remains
unsolved, replace
the power source
board again.
Red-line part
The indicator on
intelligent power
module blinks normal
(bright for 1 second and
dark for 1 second), but
the indicator on power
source board does not
work normally
Replace the
power source
board
If the fault remains
unsolved, replace
the intelligent
power module
again.
Orange-line
part
2
After the
complete unit
is energized,
check the
indicators on
outdoor
power source
board and
intelligent
power module
VP1
Replace power
source board
If the fault remains
unsolved, replace
the intelligent
power module
again.
CN5 position
and marking