Lexmark T650 Service Manual page 143

Error
code or Error contents
message
937.40 Main drive motor
assembly failure
Over speed detected
during speed control.
Motor = type 0
937.41 Main drive motor
assembly failure
Over speed detected
during speed control.
Motor = type 1
937.50 Main drive motor
assembly failure
Over speed detected
during position
control.
Motor = type 0
937.51 Main drive motor
assembly failure
Over speed detected
during position
control.
Motor = type 1
Description/Action
The main drive motor assembly
may be faulty or has failed.
The main drive motor assembly
may be faulty or has failed.
The main drive motor assembly
may be faulty or has failed.
The main drive motor assembly
may be faulty or has failed.
4062
Possible repair actions
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
"Output cover assembly
removal" on page 4-53.
4. Replace the system card
assembly if problem
remains. Go to "System
card assembly removal"
on page 4-75.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
"Output cover assembly
removal" on page 4-53.
4. Replace the system card
assembly if problem
remains. Go to "System
card assembly removal"
on page 4-75.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
"Output cover assembly
removal" on page 4-53.
4. Replace the system card
assembly if problem
remains. Go to "System
card assembly removal"
on page 4-75.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
"Output cover assembly
removal" on page 4-53.
4. Replace the system card
assembly if problem
remains. Go to "System
card assembly removal"
on page 4-75.
2-107
Diagnostic information
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