Canon EOS 7 Service Manual page 102

<Inter-Task Communication Errors>
Error No. Error
30 Timeout of af_task
cancel process.
31 Timeout of af_task
EMDACT process.
(Stop-down error)
32 Timeout of af_task
EMDACT process.
(Diaphragm
conduction stop
error)
33 Timeout of af_task
EMDACT process.
(Maximum
aperture error)
34 Timeout of
nac_task stop
process.
<Eye Control Errors>
Error No. Error
50 Faulty current
during Eye Control
IRED/ON.
51 Faulty current
during Eye Control
IRED/OFF.
Condition
The AF stop process does not end within the
stipulated time.
The stop-down process does not end within the
stipulated time.
The stop-down conduction stop process does not end
within the stipulated time.
The maximum aperture opening process does not end
within the stipulated time.
The Eye Control detection stop process does not end
within the stipulated time.
Condition
The total IRED current during Eye Control IRED/ON
is very abnormally larger than the normal set current.
The total IRED current during Eye Control
IRED/OFF is about 49 mA or larger instead of 0 mA.
2-35
Part 2: Technical Information
Probable Cause
Faulty task status
transition.
Faulty task status
transition.
Faulty task status
transition.
Faulty task status
transition.
Faulty task status
transition.
Probable Cause
Circuit problem
due to a damaged
IRED driver,
current leakage,
etc.
Circuit problem
due to a damaged
IRED driver,
current leakage,
etc.